Grandstream GXP21xx User Manual

Grandstream Networks, Inc.
GXP2120/GXP2110/GXP2100/GXP14xx SIP Enterprise Phones
GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL
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GXP2120/GXP2110/GXP2100/GXP14xx User Manual
GUI INTERFACE EXAMPLES .................................................................... 5
GNU GPL INFORMATION .......................................................................... 6
CHANGE LOG ........................................................................................... 7
FIRMWARE VERSION 1.0.8.4 .............................................................................................................. 7
FIRMWARE VERSION 1.0.7.11 ............................................................................................................ 7
FIRMWARE VERSION 1.0.7.4 .............................................................................................................. 7
FIRMWARE VERSION 1.0.6.11 ............................................................................................................ 7
FIRMWARE VERSION 1.0.6.7 .............................................................................................................. 7
FIRMWARE VERSION 1.0.5.58 ............................................................................................................ 7
FIRMWARE VERSION 1.0.5.32 ............................................................................................................ 8
FIRMWARE VERSION 1.0.5.26 ............................................................................................................ 8
FIRMWARE VERSION 1.0.5.24 ............................................................................................................ 8
FIRMWARE VERSION 1.0.5.15 ............................................................................................................ 8
FIRMWARE VERSION 1.0.4.23 ............................................................................................................ 8
FIRMWARE VERSION 1.0.4.9 .............................................................................................................. 9
WELCOME ................................ ............................................................... 11
PRODUCT OVERVIEW ............................................................................ 13
FEATURE HIGHTLIGHTS ................................................................................................................... 13
GXP2120/GXP2110/GXP2100/GXP14xx TECHNICAL SPECIFICATIONS ........................................ 14
INSTALLATION ........................................................................................ 17
EQUIPMENT PACKAGING ................................................................................................................. 17
CONNECTING YOUR PHONE ........................................................................................................... 17
GXP2120/GXP2110 EXTENSION MODULE....................................................................................... 18
SAFETY COMPLIANCES .................................................................................................................... 20
WARRANTY ......................................................................................................................................... 20
USING THE GXP2120/GXP2110/GXP2100/GXP14xx ............................. 21
GETTING FAMILAR WITH THE LCD .................................................................................................. 21
GETTING FAMILAR WITH THE KEYPAD ........................................................................................... 27
MAKING PHONE CALLS..................................................................................................................... 28
FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 1 of 85
HANDSET, SPEAKER AND HEADSET MODE ........................................................................... 28
MULTIPLE SIP ACCOUNTS AND LINES ..................................................................................... 28
COMPLETING CALLS.................................................................................................................. 29
MAKING CALLS USING IP ADDRESSES ................................................................................... 31
ANSWERING PHONE CALLS ............................................................................................................ 32
RECEIVING CALLS...................................................................................................................... 32
DO NOT DISTURB ....................................................................................................................... 32
DURING A PHONE CALL .................................................................................................................... 33
CALL WAITING/CALL HOLD ....................................................................................................... 33
MUTE ............................................................................................................................................ 33
CALL TRANSFER ........................................................................................................................ 33
5-WAY CONFERENCING/3-WAY CONFERENCING .................................................................. 34
VOICE MESSAGES (MESSAGE WAITING INDICATOR) ........................................................... 36
SHARED CALL APPEARANCE (SCA) ........................................................................................ 37
INSERTING PAUSE INTO SPEED DIALS AND PHONEBOOK ENTRIES ................................. 37
CALL FEATURES ................................................................................................................................ 38
CUSTOMIZED LCD SCREEN & XML ................................................................................................. 40
CONFIGURATION GUIDE ........................................................................ 41
CONFIGURATION VIA KEYPAD ......................................................................................................... 41
CONFIGURATION VIA WEB BROWSER ........................................................................................... 46
DEFINITIONS ...................................................................................................................................... 47
STATUS PAGE DEFINITIONS ..................................................................................................... 47
ACCOUNTS PAGE DEFINITIONS ............................................................................................... 48
SETTINGS PAGE DEFINITIONS ................................................................................................. 57
NETWORK PAGE DEFINITIONS ................................................................................................. 66
MAINTENANCE PAGE DEFINITIONS ......................................................................................... 67
PHONEBOOK PAGE DEFINITIONS ............................................................................................ 71
NAT SETTINGS ................................................................................................................................... 73
WEATHER UPDATE ............................................................................................................................ 74
MULTICAST PAGING .......................................................................................................................... 75
PUBLIC MODE .................................................................................................................................... 78
EDITING CONTACTS AND CLICK-TO-DIAL ...................................................................................... 78
SAVING THE CONFIGURATION CHANGES...................................................................................... 80
REBOOTING FROM REMOTE LOCATIONS ...................................................................................... 80
UPGRADING AND PROVISIONING ........................................................ 81
UPGRADE VIA KEYPAD MENU ......................................................................................................... 81
UPGRAGE VIA WEB GUI .................................................................................................................... 81
NO LOCAL TFTP/HTTP SERVERS .................................................................................................... 81
FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 2 of 85
CONFIGURATION FILE DOWNLOAD ................................................................................................ 82
RESTORE FACTORY DEFAULT SETTINGS ........................................... 83
EXPERIENCING THE GXP2120/GXP2110/GXP2100/GXP14xx .............. 85
FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 3 of 85
Table of Tables
GXP2120/GXP2110/GXP2100/GXP14xx User Manual
Table 1: GXP2120/GXP2110/GXP2100/GXP14xx FEATURES IN A GLANCE .......................................... 13
Table 2: GXP2120/GXP2110/GXP2100/GXP14xx COMPARISON GUIDE ................................................ 14
Table 3: GXP2120/GXP2110/GXP2100/GXP14xx TECHNICAL SPECIFICATIONS ................................. 14
Table 4: GXP2120/GXP2110/GXP2100/GXP14xx EQUIPMENT PACKAGING ......................................... 17
Table 5: GXP2120/GXP2110/GXP2100/GXP14xx CONNECTORS ........................................................... 17
Table 6: LCD DISPLAY DEFINITIONS ........................................................................................................ 21
Table 7: GXP2120/GXP2110/GXP2100/1450 LCD ICONS ........................................................................ 24
Table 8: GXP140x LCD ICONS .................................................................................................................. 26
Table 9: KEYPAD DEFINITIONS ................................................................................................................ 27
Table 10: CALL FEATURES ........................................................................................................................ 39
Table 11: CONFIGURATION MENU ........................................................................................................... 41
Table of Figures
GXP2120/GXP2110/GXP2100/GXP14xx User Manual
Figure 1: GXP2120/GXP2110/GXP2100/GXP14xx Pin-out ....................................................................... 18
Figure 2: GXP2120/GXP2110 EXT Board Connection ............................................................................... 19
Figure 3: Soft pause for speed dial ............................................................................................................. 38
Figure 4: Soft pause for phonebook entry ................................................................................................... 38
Figure 5: Keypad MENU Flow .................................................................................................................... 45
Figure 6 Sending Multicast Page Configuration by using Line Keys .......................................................... 75
Figure 7 Sending Multicast Page Configuration by using MPK .................................................................. 76
Figure 8: Web GUI - Phonebook->Contacts ............................................................................................... 79
Figure 9: Click-to-Dial .................................................................................................................................. 80
FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 4 of 85

GUI INTERFACE EXAMPLES

http://www.grandstream.com/products/gxp_series/general/documents/gxp21xx_gui.zip
1. Screenshot of Login Page
2. Screenshots of Status Pages
3. Screenshots of Accounts Pages
4. Screenshots of Settings Pages
5. Screenshots of Network Pages
6. Screenshots of Maintenance Pages
7. Screenshots of Phonebook Pages
FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 5 of 85

GNU GPL INFORMATION

GXP2120/GXP2110/GXP2100/GXP14xx firmware contains third-party software licensed under the GNU General Public License (GPL). Grandstream uses software under the specific terms of the GPL. Please see the GNU General Public License (GPL) for the exact terms and conditions of the license.
Grandstream GNU GPL related source code can be downloaded from Grandstream web site from:
http://www.grandstream.com/support/faq/gnu_gpl.
FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 6 of 85

CHANGE LOG

This section documents significant changes from previous versions of user manuals for GXP2120/GXP2110/GXP2100/GXP14xx. Only major new features or major document updates are listed here. Minor updates for corrections or editing are not documented here.

FIRMWARE VERSION 1.0.8.4

Added option to ignore Alert-Info header when used for distinctive ringtone. [Ignore Alert-Info header] Added dual Outbound SIP Proxy support. [Backup Outbound Proxy] Added support for sending SIP Option messages to verify connectivity to the SIP server. [OPTIONS
Keep Alive]
Added option to select Call Pickup mode. [Force BLF Call-pickup by prefix]

FIRMWARE VERSION 1.0.7.11

Added support to disable the Call park subscription. [Broadsoft Call Park] Added support of DHCP OPTION 160. [DHCP option 160] Enabled HTTP(S) ID/Pass prompt. [HTTP/HTTPS User Name and Password]

FIRMWARE VERSION 1.0.7.4

Added Multicast Paging support. [MULTICAST PAGING] Added support to disable SIP NOTIFY Authentication. [MAINTENANCE PAGE DEFINITIONS] Added support to Map Polish characters in phonebook entries

FIRMWARE VERSION 1.0.6.11

Added phone power special feature to GXP14xx. [ ACCOUNTS PAGE DEFINITIONS] Added support for inserting pauses into speed dials and phone book entries. [INSERTING PAUSE
INTO SPEED DIALS AND PHONEBOOK ENTRIES]
Added support for Svenska language. Added PC port VLAN Tagunder Network setting. [NETWORK PAGE DEFINITIONS] Added PC port Priority Valueunder Network setting. [NETWORK PAGE DEFINITIONS] Added Date Time setting under Preference setting on menu. [CONFIGURATION VIA KEYPAD]

FIRMWARE VERSION 1.0.6.7

No new feature added.

FIRMWARE VERSION 1.0.5.58

Added “3CX Auto Provision” under Maintenance. [MAINTENANCE PAGE DEFINITIONS] Added “Second Dial Tone” under Settings. [SETTINGS PAGE DEFINITIONS]
FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 7 of 85
Added Sort Phonebook by under Phonebook Management. [PHONEBOOK PAGE DEFINITIONS] Added Public Mode Login Expiration under Settings. [SETTINGS PAGE DEFINITIONS] Added Hold Method under Account setting. [ACCOUNTS PAGE DEFINITIONS] Added Crypto Life Time under Account setting.[ACCOUNTS PAGE DEFINITIONS] Added UCM Connection under LCD Main menu.[CONFIGURATION VIA KEYPAD]

FIRMWARE VERSION 1.0.5.32

Added Web Access Mode under Security setting. [SECURITY] Replaced Disable Telnet under Web Access by Disable SSH under Security setting page.
[SECURITY]

FIRMWARE VERSION 1.0.5.26

Updated Use Phonebook Key for LDAP Searchunder LDAP settings to Phonebook Key function
under Phonebook Management settings. [PHONEBOOK PAGE DEFINATION]

FIRMWARE VERSION 1.0.5.24

Updated TFTP server download link for 1.0.5.24, [NO LOCAL TFTP/HTTP SERVERS] Added “Enable Idle Mute” feature in Call Features. [CALL FEATURES] Added “Enable LLDP” feature under Network Advanced Settings.[NETWORK PAGE DEFINITIONS]

FIRMWARE VERSION 1.0.5.15

Updated Web GUI interface examples with new screenshots for 1.0.5.15. [GUI INTERFACE
EXAMPLES]
Merged GXP140x user manual content in this manual. Add pin-out information. [Figure 1: GXP2120/GXP2110/GXP2100/GXP14xx Pin-out] Updated Auto Attended Transfer information. [CALL TRANSFER] Modified Public Mode information. [PUBLIC MODE] Updated Click-To-Dial feature information. [EDITING CONTACTS AND CLICK-TO-DIAL] Updated Keypad MENU options and Keypad configuration flow. [CONFIGURATION VIA KEYPAD] Updated Web GUI options. Added options "Music On Hold URI", "Authenticate Incoming INVITE",
"Click-To-Dial Feature", "Call-Waiting Tone Gain", "Accept Incoming SIP from Proxy Only", "Caller ID Display", "Broadsoft Call Center", "Hoteling Event", "Call Center Status", "PUBLISH to Call Center", "Use First Matching Vocoder in 200OK SDP", "DND Call Feature On" and "DND Call Feature Off". [DEFINITIONS]

FIRMWARE VERSION 1.0.4.23

Updated XML Application documentation link. [CUSTOMIZED LCD SCREEN & XML] Added "Use Privacy Header" and "Use P-Preferred-Identity Header" options in web GUI. [ACCOUNTS
PAGE DEFINITIONS]
Added Date Display Format options in web GUI. [SETTINGS PAGE]
FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 8 of 85
Added "Use Phonebook Key for LDAP Search" option in web GUI. [MAINTENANCE PAGE] Added customize city code information for weather update feature. [WEATHER UPDATE] Updated generic config file cfg.xml information. [CONFIGURATION FILE DOWNLOAD]

FIRMWARE VERSION 1.0.4.9

Added instructions for connecting the phone. [CONNECTING YOUR PHONE] Updated Keypad MENU options and Keypad configuration flow. [CONFIGURATION VIA KEYPAD] Added Line Key options Speed Dial, Dial DTMF, Call Return, Transfer, Voice Mail, Intercom, Call Park,
LDAP Search, and etc. [SETTINGS PAGE]
Added Multi Purpose Key options Voice Mail, Call Park, LDAP Search, and etc. [SETTINGS PAGE] Added IPv6 configuration options. [SETTINGS PAGE] Added LDAP options information. [MAINTENANCE PAGE] Added Public Mode information for hot desking feature. [PUBLIC MODE] Added NAT setting information. [NAT SETTINGS] Added Matching Incoming Caller ID function in Account Setting. [ACCOUNTS PAGE DEFINITIONS] Added Editing Contacts and Click-to-Dial information. [EDITING CONTACTS AND CLICK-TO-DIAL] Added GNU GPL information. [GNU GPL INFORMATION] Added Change Log for this user manual. Merging GXP1450 User Manual content with GXP2120/GXP2110/GXP2100 User Manual.
FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 9 of 85
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WELCOME

Thank you for purchasing Grandstream GXP2120/GXP2110/GXP2100/GXP14xx SIP Enterprise Phones. Your Grandstream GXP2120/GXP2110/GXP2100/GXP14xx Enterprise IP phone is feature-enriched, sophisticated, yet simple to use. It delivers superior HD audio quality, rich and leading edge telephony features, personalized information and customizable application service, automated provisioning for easy deployment, advanced security protection for privacy, and broad interoperability with most 3rd party SIP devices and leading SIP/NGN/IMS platforms.
The GXP2120/GXP2110/GXP2100/GXP14xx supports a broad range of codecs, security protection, PoE, dual 10/100Mbps Ethernet ports, along with customizable XML provisioning and application features. Users can expect superior audio quality using the new high definition handset, hands-free speakerphone, or headset. Also, it can support up to 5-way conferencing for GXP2120/GXP2110/GXP2100 and 3-way conferencing for GXP14xx, multi-languages and dual-color LEDs. The GXP2120/GXP2110/GXP2110 supports presence and Busy Lamp Field (BLF) in the Multi Purpose Keys as well. It presents a large easy-to-read backlit graphical display along with multiple XML keys to further enhance the user experience. Additionally, the GXP2120/2110 is expandable with one to two expansion modules.
The GXP2120/GXP2110/GXP2100/GXP14xx is a perfect choice for enterprise users looking for a high quality, feature rich multi-line IP phone with the best values.
Caution:
Changes or modifications to this product not expressly approved by Grandstream, or operation of this product in any way other than as detailed by this User Manual, could void your manufacturer warranty.
Warning:
Please do not use a different power adaptor with the GXP2120/GXP2110/GXP2100/GXP14xx as it may cause damage to the products and void the manufacturer warranty.
This document is subject to change without notice. The latest electronic version of this user manual is available for download here:
http://www.grandstream.com/support
FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 11 of 85
Reproduction or transmittal of the entire or any part, in any form or by any means, electronic or print, for any purpose without the express written permission of Grandstream Networks, Inc. is not permitted.
FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 12 of 85

FEATURE HIGHTLIGHTS

GXP2120
6 lines 7 programmable Multi Purpose Keys 4 XML programmable soft keys XML Application XML Idle Screen Customization
GXP2110
4 lines 18 programmable Multi Purpose Keys 3 XML programmable soft keys XML Application XML Idle Screen Customization
GXP2100
4 lines 7 programmable Multi Purpose Keys 3 XML programmable soft keys XML Application XML Idle Screen Customization
GXP1450
2 lines 3 XML programmable soft keys XML Idle Screen Customization
GXP140x
2 lines 3 XML programmable soft keys XML Idle Screen Customization
Table 1: GXP2120/GXP2110/GXP2100/GXP14xx FEATURES IN A GLANCE

PRODUCT OVERVIEW

FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 13 of 85
Table 2: GXP2120/GXP2110/GXP2100/GXP14xx COMPARISON GUIDE
Features
GXP2120
GXP2110
GXP2100
GXP1450
GXP140x
LCD Display
320x160 pixel
240x120 pixel
180x90 pixel
180x60 pixel
128x40 pixel
LCD Backlight
Yes
Yes
Yes
Yes
No
Number of Lines
6 4 4 2 2
Programmable Hard Keys
7
18 7 N/A
N/A
Programmable Soft Keys
4 3 3 3 3
Extension Module
Yes, up to 2 EXT Boards, 56 nodes each
Yes, up to 2 EXT Boards,
56 nodes each
N/A
N/A
N/A
Protocols and Standards
SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS (A record, SRV, NAPTR), DHCP, PPPoE, TELNET, TFTP, NTP, STUN, SIMPLE, TR-069,
802.1X, LLDP, LLDP-MED, LDAP, IPv6, TLS, SRTP
SIP PUBLISH method (RFC3903), SIP Presence Package (RFC3856, 3863) for use of MPKs, SIP Dialog Package (RFC4235), SIP Message method (RFC3428)
Note:
MPKs are not applicable to GXP14xx.
Network Interfaces
Dual switched 10/100Mbps port Integrated PoE for GXP2120/GXP2110/GXP2100/GXP1450/GXP1405

GXP2120/GXP2110/GXP2100/GXP14xx TECHNICAL SPECIFICATIONS

Table 3: GXP2120/GXP2110/GXP2100/GXP14xx TECHNICAL SPECIFICATIONS
FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 14 of 85
Graphic Display
LCD size and backlight:
GXP2120
GXP2110
GXP2100
GXP1450
GXP140x
320x160 pixel
240x120 pixel
180x90 pixel
180x60 pixel
128x40 pixel
Backlight
Backlight
Backlight
Backlight
No Backlight
Feature Keys
Feature key comparison:
GXP2120
GXP2110
GXP2100
GXP1450
GXP140x
HOLD
Yes
Yes
Yes
Yes
Yes
SPEAKER
Yes
Yes
Yes
Yes
Yes
SEND
Yes
Yes
Yes
Yes
Yes
TRANSFER
Yes
Yes
Yes
Yes
Yes
CONF
Yes
Yes
Yes
Yes
Yes
MUTE
Yes
Yes
Yes
Idle: DND Talk: MUTE
Idle: DND Talk: MUTE
DND
Yes
Yes
No
HEADSET
Yes
Yes
Yes
Yes
Yes
INTERCOM
Yes
Yes
Yes
No
No
PHONEBOOK
Yes
Yes
Yes
Yes
No
MSG
Yes
Yes
Yes
Yes
No
MENU
Yes
Yes
Yes
Yes
Yes
NAVIGATION
Yes
Yes
Yes
Yes
Yes
Note:
GXP14xx uses the same key for DND/MUTE by default. When the phone is in idle, the key will be used as DND. When the phone is in talking status, the key will be used as MUTE.
Voice Codec
Support for G.723.1, G.729A/B, G.711u/a, G.726-32, G.722 (wide-band), iLBC, in-band and out-of-band DTMF (in audio, RFC2833, SIP INFO)
Telephony Features
Hold, transfer, forward, up to 5-way conference for GXP2120/GXP2110/GXP2100, up to 3-way conference for GXP14xx, call park, pickup, shared-call-appearance (SCA)/bridged-line-appearance (BLA), downloadable phone book (XML, LDAP, up to 2000 items for GXP2120/GXP2110/GXP2100, up to 500 items for GXP14xx), call waiting, call log (up to 2000 records for GXP2120/GXP2110/GXP2100, up to 500 records for GXP14xx), XML customization of idle screen, off-hook auto dial, auto answer, click-to-dial, flexible dial plan, hot desking, personalized music ringtones, server redundancy and fail-over
HD Audio
Yes, HD handset with support for wideband audio
FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 15 of 85
Headset Jack
For GXP2120/GXP2110/GXP2100/1450: 2.5mm and RJ9 headset jack; For GXP140x: RJ9 headset jack only
Base Stand
Yes, 2-angle positions available
Wall Mountable
Yes
EXT Board
GXP2120/GXP2110 only
QoS
Layer 2 (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS
Security
User and administrator level passwords, MD5 and MD5-sess based authentication, 256-bit AES encrypted configuration file, TLS, SRTP, 802.1X media access control
Multi-language
English, German, Italian, French, Spanish, Portuguese, Russian, Croatian, Simplified Chinese, Traditional Chinese, Korean, Japanese, Svenska and etc
Upgrade and Provisioning
Firmware upgrade via TFTP/HTTP/HTTPS, mass provisioning using TR-069 or AES encrypted XML configuration file
Power and Green Energy Efficiency
Universal power adapter: Input: 100-240VAC 50-60Hz; Output: 5VDC, 800mA (GXP2100 only) Input: 100-240VAC 50-60Hz; Output: 5VDC, 800mA or 5VDC, 1200mA Integrated Power-over-Ethernet (Built-in auto-sensing: Cisco and IEEE 802.3af standard) Max power consumption 2.5W (power adapter) or 3W (PoE)
Physical
GXP2120
GXP2110
GXP2100
GXP1450
GXP140x
Dimension
251mm(W) 202mm(L) 77mm(H)
252mm (W) 210mm (L) 78mm (H)
222mm (W) 210mm (L) 93mm (H)
186mm (W) 210mm (L) 81mm (H)
186mm (W) 210mm (L) 81mm (H)
Unit Weight
1.08KG
1.08KG
0.98KG
0.8KG
0.7KG
Package Weight
1.78KG
1.78KG
1.63KG
1.3KG
1.1KG
Operating Temperature and Humidity
32-104 oF / 0-40 oC, 10-90% (non-condensing)
Package Content
GXP2120/GXP2110/GXP2100/GXP14xx phone, handset with cord, base stand, wall mount spacers, universal power supply, network cable, quick start guide
Compliance
FCC Part 15 (CFR 47) Class B; EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3, EN60950-1; AS/NZS CISPR 22 Class B, AS/NZS CISPR 24, RoHS; UL 60950 (power adapter)
FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 16 of 85

EQUIPMENT PACKAGING

Main Case
Yes
1
Handset
Yes
1
Phone Cord
Yes
1
Power Adaptor
Yes
1
Ethernet Cable
Yes
1
Phone Stand
Yes
2 for GXP2120/GXP2110/GXP2100/1450;
1 for GXP140x
Wall Mount Spacers
Yes
2
Quick Start Guide
Yes
1
Handset Port
RJ9
Headset Port
2.5mm and RJ9 for GXP2120/GXP2110/GXP2100/1450; RJ9 for GXP140x
LAN Port
10/100Mbps RJ-45 port connecting to Ethernet; Integrated PoE for GXP2120/GXP2110/GXP2100/GXP1450/GXP1405
PC Port
10/100Mbps RJ-45 port for PC connection
EXT Port
Extension module connection port for GXP2120/GXP2110
Power Jack
5V DC Power connector port
Table 4: GXP2120/GXP2110/GXP2100/GXP14xx EQUIPMENT PACKAGING

CONNECTING YOUR PHONE

INSTALLATION

Table 5: GXP2120/GXP2110/GXP2100/GXP14xx CONNECTORS
To set up the GXP2120/GXP2110/GXP2100/GXP14xx, follow the steps below:
1. Attach the phone stand or wall mount to the back of the phone where there are slots;
2. Connect the handset and main phone case with the phone cord;
3. Connect the LAN port of the phone to the RJ45 socket of a hub/switch or a router (LAN side of the router) using the Ethernet cable;
4. Connect the 5V DC output plug to the power jack on the phone; plug the power adapter into an electrical outlet. If PoE switch is used in step 3 (not applicable to GXP1400), this step could be skipped;
FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 17 of 85
5. The LCD will display provisioning or firmware upgrade information. Before continuing, please wait for
GXP2120/GXP2110/GXP2100/GXP14xx Handset/Headset Jack
GXP2120/GXP2110/GXP2100/GXP14xx Handset/Headset Plug
GXP2120/GXP2110/GXP2100/GXP1450
2.5mm Headset Jack
GXP2120/GXP2110/GXP2100/14xx Power Jack
the date/time display to show up;
6. Using the keypad configuration menu or phone's embedded web server (Web GUI) by entering the IP address in web browser, you can further configure the phone.
Please see below the pin-out information for GXP2120/GXP2110/GXP2100/14xx.

GXP2120/GXP2110 EXTENSION MODULE

GXP2120/2110 supports two EXT boards, providing up to 112 additional programmable extensions. Each GXP EXT board has 56 multi-purpose keys, dual color LEDs (red/green) and support BLF (Busy Lamp Field) and Presence.
GXP2120/2110 EXT board package contains:
1 GXP EXT board 2 connection cables
FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 18 of 85
Figure 1: GXP2120/GXP2110/GXP2100/GXP14xx Pin-out
GXP2120 with 2 GXP EXT Boards
GXP EXT Board
Reverse side of connection with connection plate
GXP2120/2110 has a special port on the back
Figure 2: GXP2120/GXP2110 EXT Board Connection
Connect the first GXP EXT board to the GXP2120/2110 using the connection cable found in the GXP EXT board package. The first GXP EXT board draws power directly from the phone. Connect the second GXP EXT board using the connection plate and the connection cable. The GXP2120/2110 will automatically reboot and power up the GXP EXT boards. Grandstream recommends, though not required, to use a separate power supply with the second GXP EXT board.
Note:
Should your system lose power, please unplug your devices and power up the GXP2120/2110 first. EXT board for GXP2120/2110 is the same for GXP2020/2010 models. However, GXP2120/2110 uses
a different-shaped connector for the special port (as shown above). Connection cables will be included with the EXT board.
EXT board for GXP2120/2110 does not support hot-swap. Once connected, user should reboot the
phone to ensure the setup will work correctly.
GXP2120/2110 can drive 2 EXT boards. Independent power adapters are not needed for the EXT
board.
FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 19 of 85

SAFETY COMPLIANCES

The GXP2120/GXP2110/GXP2100/GXP14xx phone complies with FCC/CE and various safety standards. The GXP2120/GXP2110/GXP2100/GXP14xx power adapter is compliant with the UL standard. Use the universal power adapter provided with the GXP2120/GXP2110/GXP2100/GXP14xx package only. The manufacturer’s warranty does not cover damages to the phone caused by unsupported power adapters.

WARRANTY

If the GXP2120/GXP2110/GXP2100/GXP14xx phone was purchased from a reseller, please contact the company where the phone was purchased for replacement, repair or refund. If the phone was purchased directly from Grandstream, contact the Grandstream Support for a RMA (Return Materials Authorization) number before the product is returned. Grandstream reserves the right to remedy warranty policy without prior notification.
Warning:
Use the power adapter provided with the phone. Do not use a different power adapter as this may damage the phone. This type of damage is not covered under warranty.
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USING THE GXP2120/GXP2110/GXP2100/GXP14xx

DATE AND TIME
Displays the current date and time. It can be synchronized with Internet time servers.
LOGO
Displays company logo/name. This logo/name can be customized via xml screen customization. The maximum size for logo name string is 26 characters in English (approximately).
Note:
For GXP140x, only strings can be used for logo name due to LCD limitation.
NETWORK STATUS
Shows the status of network in the middle of the screen. It will indicate whether the network is down or starting.
STATUS ICON
Shows the status of the phone for registration status, call features and etc, using icons as shown in the next table.
LINE STATUS INDICATOR
Displays the name of the account that is in use.
Note:
Line Status Indicator is NOT applicable to GXP140x.
SOFTKEYS in Idle Screen
The softkeys are context sensitive and will change depending on the status of the phone. Typical functions assigned to softkeys are:
SwitchSCR/NEXTSCR
Toggles between different idle screens. For example, for GXP2120/GXP2110/GXP2100, pressing SwitchSCR will toggle among default idle screen, weather information, stock information and currency information; for GXP140x, pressing NEXTSCR will

GETTING FAMILAR WITH THE LCD

GXP2120/GXP2110/GXP2100/GXP14xx has a dynamic and customizable screen. The screen displays differently depending on whether the phone is idle or in use (active). The following table describes the items displayed on the GXP2120/GXP2110/GXP2100/GXP14xx idle screen.
Table 6: LCD DISPLAY DEFINITIONS
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toggle among default idle screen, weather information, IP Address and the SIP extension number.
ForwardAll
Unconditionally forwards the phone line (account 1) to another phone.
MissedCalls
Shows up unanswered calls to this phone.
Redial
Redials the last dialed number when there is existed dialed call log.
Note:
If XML application is used for GXP2120/GXP2110/GXP2100, the softkey for XML application will show up in the default idle screen as configured.
SOFTKEYS in Call Screen
The softkeys are context sensitive and will change depending on the call status of the phone. Here are the main softkeys in call screen.
Redial
Redials the last dialed number after off hook when there is existed call log.
Dial
Dials the call out after off hook and entering the number.
AnswerCall
Answers the incoming call when the phone is ringing.
RejectCall
Rejects the incoming call when the phone is ringing.
EndCall
Ends the active call.
Transfer
Transfer softkey will show up after pressing TRAN button and
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entering transfer target number. Press Transfer softkey to do blind transfer.
Split
In auto-attended transfer mode, after establishing the second call, press Split to quit transfer and go back to normal talking status.
ConfCall
Conferences the active calls.
ReConf
Re-establish the conference among the calls on hold.
SPECIAL SOFTKEYS (Only for
GXP2120/GXP2110/GXP2100 when integrated with GXE5024/5028)
Call Parking: Please refer to GXE5024/5028 Online User Manual for
more information.
CallPark
When the phone dials out, the Call Park softkey will display on screen. To park the call, press the "CallPark" softkey and select a green MPK to park the call on available parking lot.
PickUp
When the phone goes off-hook, the "Pickup" softkey will display on screen. To pick up the parked call, press the "Pickup" softkey and select the red MPK where the call is parked for retrieve the call.
Call Queue: Please refer to GXE5024/5028 Online User Manual for more information.
SignIn
Press this button to sign in to the call queue. If the current account is included in multiple call queues, agent will be prompted in the LCD display to select the call queue to join. Press MENU button on keypad to select OK. Once the agent completely signs in, the agent will be brought back to the main screen.
SignOut
Press this button to sign out of the call queue. Press MENU button on keypad to select OK. This will be displayed once the agent is signed in to the call queue.
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Table 7: GXP2120/GXP2110/GXP2100/1450 LCD ICONS
DND Status.
OFF - Do Not Disturb disabled ON - Do Not Disturb enabled
Call Forward All Status.
OFF - Call Forward All feature disabled ON - Call Forward All feature enabled
Call Forward Busy Status.
OFF - Call Forward Busy feature disabled ON - Call Forward Busy feature enabled
Call Forward No Answer Status.
OFF - Call Forward No Answer feature disabled ON - Call Forward No Answer feature enabled
Call Forward All and Call Forward No Answer Status.
OFF - Call Forward All and Call Forward No Answer feature disabled ON - Call Forward All and Call Forward No Answer feature enabled
Keypad Status.
OFF - keypad is unlocked ON - keypad is locked
Enter Keypad Unlock Password.
Voicemail Status.
OFF - No new voicemail ON - New voicemail
Instant Message.
OFF - No new instant message ON - New instant message
Voice Mail and Instant Message.
OFF - No new instant message or voicemail ON - New instant message and voicemail
Network Status.
OFF - Network connection is up ON - Network connection is down
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Missed Call Status.
OFF - No missed call ON - New missed call
Save Call Record Status.
OFF - No saving call record activity ON - The phone is writing the call records into the flash at the moment
Waiting For Response. Please wait for the phone to response before the keypad entry
Handset Status. OFF - handset on hook
ON - handset off hook
Speaker Status. OFF - speaker off
ON - speaker on
Headset Status. OFF - headset off
ON - headset on
Calling Out. The phone is calling out
Calling In. Phone is ringing with incoming call
Incoming Call. The current call is an incoming call
Outgoing Call. The current call is an outgoing call
Call Failed Fail to establish call
SRTP Status.
OFF - SRTP is not used ON - SRTP is used
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MUTE Status.
OFF - No muted ON - Muted
Call On Hold.
Call Active.
Conference Call.
Core Dump.
Core dump file can be downloaded from phone's Web GUI->Status page.
Table 8: GXP140x LCD ICONS
Registration Status: Registered.
Registration Status: Not Registered.
Handset Status.
OFF - handset on hook ON - handset off hook
Speaker Status.
OFF - speaker off ON - speaker on
Headset Status.
OFF - headset off ON - headset on
DND Status.
OFF - Do Not Disturb disabled ON - Do Not Disturb enabled
Call Forward Status.
OFF - Call Forward feature disabled ON - Call Forward feature enabled
MUTE Status.
OFF - The active call is not muted ON - The active call is muted
SRTP Status.
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OFF - SRTP is not used ON - SRTP is used

GETTING FAMILAR WITH THE KEYPAD

GXP2120/GXP2110/GXP2100
GXP1450
GXP140x
Definition
LINE KEYS
LINE KEYS
LINE 1/LINE 2
Open or switch line; resume the call on hold.
HOLD
HOLD
HOLD
Place active call on hold, or resume the call on hold.
SEND
Send out the number, or redial.
TRANSFER
TRANSFER
TRANSFER
Transfer an active call to another number.
CONF
CONF
CONF
Establish conference call with other parties.
MUTE
During an active call, press to mute or unmute.
HEADSET
Headset.
DND
When the phone is in idle, press to enable/disable DND feature.
INTERCOM
N/A
N/A
Paging/Intercom the configured Intercom User ID.
NAVIGATION KEYS/MENU
Press the 4 navigation
keys to move up/down/left/right;
Press the round button
in the center for MENU/ENTER/OK
The following table describes the buttons used on the GXP2120/GXP2110/GXP2100/GXP14xx keypad.
Table 9: KEYPAD DEFINITIONS
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PHONEBOOK
N/A
Phonebook/Contacts.
Volume (For GXP2100/GXP14xx only). For GXP2120/GXP2110, press UP or DOWN button to adjust the volume when the phone is on hook.
N/A
Voicemail.
0 - 9, *, #
Standard phone keypad.
MULTI PURPOSE KEYS
N/A
N/A
Configure key mode and User ID to use the Multi Purpose key as Speed Dial, BLF, Call Park and etc.

MAKING PHONE CALLS

HANDSET, SPEAKER AND HEADSET MODE

The GXP2120/GXP2110/GXP2100/GXP14xx allows users to switch among handset, speaker or headset when making calls. Press the Hook Switch to switch to handset; press the Headset button to switch to
headset; or press the Speaker button to switch to speaker.

MULTIPLE SIP ACCOUNTS AND LINES

GXP2120 can support up to 6 independent SIP accounts; GXP2110/GXP2100 can support up to 4 independent SIP accounts; GXP14xx can support up to 2 independent accounts. Each account is capable of independent SIP server, user and NAT settings. Each of the line buttons is "virtually" mapped to an individual SIP account. In off hook state, select an idle line and the dial tone will be heard.
To make a call, select the line you wish to use. The corresponding LINE LED will light up in green. The user can switch lines before dialing any number by pressing the LINE buttons.
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For example: If 2 independent accounts are registered on GXP2120/GXP2110/GXP2100/GXP14xx, when LINE 1 is pressed, the LINE 1 LED will light up in green. If LINE 2 is pressed, the LINE 2 LED will light up in green and the subsequent call will be made through SIP account 2.
Incoming calls to a specific account will attempt to use its corresponding LINE if it is not in use. When the "virtually" mapped line is in use, the phone will flash the other available LINE in red. A line is ACTIVE when it is in use and the corresponding LED is red.

COMPLETING CALLS

There are several ways to complete a call.
On hook dialing. Enter the number when the phone is on hook and then send out.
When the phone is in idle, enter the number to be dialed out;Take handset off hook; or
Press Speaker button; or Press Headset button with headset plugged in; or Select an available LINE key;
The call will be dialed out.
Off hook and dial. Off hook the phone, enter the number and send out.
Take handset off hook; or
Press Speaker button; or Press Headset button with headset plugged in; or Press an available LINE key to activate speaker;
You shall hear dial tone after off hook;Enter the number;Press SEND key or # to dial out.
Redial. Redial the last dialed number.
Take handset off hook; or
Press Speaker button; or Press Headset button with headset plugged in; or Press an available LINE key to activate speaker; or When the phone is in idle;
Press SEND key, or the REDIAL softkey.
Via Call History. Dial the number logged in phone's call history.
Press MENU button to bring up the main menu;
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Enter Call History and select "Answered Calls", "Missed Calls", "Transferred Calls" or "Forwarded
Calls";
Select the entry you would like to call using the navigation arrow keys;Press SEND button to dial out.
Via Phonebook. Dial the number from the phonebook.
Press MENU button to bring up the main menu;Select and enter Phonebook;Select the phonebook entry you would like to call using the navigation arrow key;Press SEND button to dial the selected contact.
Speed Dial. Dial the number configured as Speed Dial on Line Key.
Go to phone's Web GUI->Settings->Programmable Keys, configure the Line Key's Key Mode as
Speed Dial. Select the account to dial from, enter the Name and User ID (the number to be dialed out) for the Line Key. Click on "Save and Apply" at the bottom of the Web GUI page;
Off hook the phone, or directly press the Speed Dial key to dial out.
Call Return. Dial the last answered call.
Go to phone's Web GUI->Settings->Programmable Keys, configure the Line Key's Key Mode as
Call Return. Select the account to dial from, no Name or User ID has to be set on for Call Return;
Off hook the phone, or directly press the Call Return key to dial out.
Via Paging/Intercom.
Take handset off hook; or
Press Speaker button; or Press Headset button with headset plugged in; or Press an available LINE key to activate speaker;
You shall hear dial tone after off hook;Press MENU button to switch the call screen from "Dialing" to "Paging";Enter the number;Press SEND key or # to dial out.
Note:
After entering the number, the phone waits for the No Key Entry Timeout (Default timeout is 4 seconds,
configurable via Web GUI) before dialing out. Press SEND or # key to override the No Key Entry Timeout;
If digits have been entered after handset is off hook, the SEND key will works as SEND instead of
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REDIAL;
By default, # can be used as SEND to dial the number out. Users could disable it by setting "User # as
Dial Key" to "No" from Web GUI->Account X->Call Settings;
For Paging/Intercom, if the SIP Server/PBX supports the feature and has Paging/Intercom feature
code set up already, users do not necessarily need toggle to paging mode in the call screen. Simply dial the feature code with extension as a normal call.
When dial out via paging, user can see the “call-info header contains “answer-after=0” and “the
alert-info” header contains info=alert-autoanswer;delay=0 in the outgoing INVITE.

MAKING CALLS USING IP ADDRESSES

Direct IP Call allows two phones to talk to each other in an ad-hoc fashion without a SIP proxy. VoIP calls can be made between two phones if:
Both phones have public IP addresses; or Both phones are on the same LAN/VPN using private or public IP addresses; or Both phones can be connected through a router using public or private IP addresses (with necessary
port forwarding or DMZ).
To make a direct IP call, please follow the steps below:
Press MENU button to bring up main menu; Select "Direct IP Call" using the navigation arrow keys; Press MENU to enter the Direct IP Call mode; Input the 12-digit target IP address (Please see example below); Press the "More" softkey to make sure the softkey selection "IPv4" or "IPv6" is correctly selected
depending on your network environment;
Press "OK" softkey to dial.
For example:
If the target IP address is 192.168.1.60 and the port is 5062 (i.e., 192.168.1.60:5062), input the following: 192*168*1*60#5062. The * key represents the dot (.), the # key represents colon (:). Wait for about 4 seconds and the phone will initiate the call.
Quick IP Call Mode:
The GXP2120/GXP2110/GXP2100/GXP14xx also supports Quick IP Call mode. This enables the phone to
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make direct IP calls using only the last few digits (last octet) of the target phone's IP address. This is possible only if both phones are under the same LAN/VPN. This simulates a PBX function using the CSMA/CD without a SIP server. Controlled static IP usage is recommended.
To enable Quick IP Call Mode, go to phone's Web GUI->Settings->Call Features, set "Use Quick IP Call Mode" to "Yes". Click on "Save and Apply" on the bottom of Web GUI page to take the change. To make Quick IP Call, take the phone off hook first. Then dial #xxx where x is 0-9 and xxx<255. Press # or SEND and a direct IP call to aaa.bbb.ccc.XXX will be completed. "aaa.bbb.ccc" is from the local IP address regardless of subnet mask. The number #xx or #x are also valid. The leading 0 is not required (but it's OK).
For example:
192.168.0.2 calling 192.168.0.3 -- dial #3 followed by # or "SEND"; 192.168.0.2 calling 192.168.0.23 -- dial #23 followed by # "SEND"; 192.168.0.2 calling 192.168.0.123 -- dial #123 followed by # "SEND"; 192.168.0.2: dial #3 and #03 and #003 results in the same call -- call 192.168.0.3.
Note:
The # will represent colon ":" in direct IP call rather than SEND key as in normal phone call; If you have a SIP server configured, direct IP call still works. If you are using STUN, direct IP call will
also use STUN;
Configure the "User Random Port" to "No" when completing direct IP calls.

ANSWERING PHONE CALLS

RECEIVING CALLS

Single incoming call. Phone rings with selected ring tone. The corresponding LINE key will flash in
red. Answer call by taking handset off hook, or using Speaker/Headset, or pressing the flashing LINE key;
Multiple incoming calls. When another call comes in while having an active call, the phone will
produce a Call Waiting tone (stutter tone). The other LINE key will flash in red. Answer the incoming call by pressing the flashing LINE key. The current active call will be put on hold automatically.

DO NOT DISTURB

Do Not Disturb can be enabled/disabled from phone's LCD. For GXP2120/GXP2110, press the DND button on the phone when the phone is in idle. For GXP14xx, press the MUTE button for DND function
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while the phone is in idle.
Or users could set it from phone's Menu following the steps below:
Press the Menu button and select "Preference" using navigation keys; Press Menu button again to get into Preference options; Select "Do Not Disturb" and press Menu button; Use arrow keys to select and press Menu button to enable or disable "Do Not Disturb" feature.
When Do Not Disturb feature is turned on, the DND icon will appear on the right side of the LCD. The incoming call will not be accepted or the call will directly go into voicemail.

DURING A PHONE CALL

CALL WAITING/CALL HOLD

Hold. Place a call on hold by pressing the HOLD button. The active LINE key will blink in green; Resume. Resume call by pressing the blinking LINE key; Multiple calls. Automatically place active call on hold or switch between calls by pressing the LINE
key. Call waiting tone (stutter tone) will be audible on new incoming call during the active call.

MUTE

During an active call, press the MUTE button to mute/unmute the microphone. The LCD will show "Talking" or "MUTE" to indicate the mute status, with Mute icon displayed on the screen.

CALL TRANSFER

GXP2120/GXP2110/GXP2100/GXP14xx supports Blind Transfer, Attended Transfer and Auto-Attended Transfer.
Blind Transfer.
During the first active call, press TRAN key and dial the number to transfer to;
Press SEND key or # to complete transfer of active call.
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Attended Transfer.
During the first active call, press LINE key. The first call will be put on hold;
Enter the number for the second call in the new line and establish the call;
Press TRAN key;
Press the other LINE key which is on hold to transfer the call.
Auto-Attended Transfer.
Set "Auto-Attended Transfer" to "Yes" under Web GUI->Settings->Call Features. And then click
"Save and Apply" on the bottom of the page;
Establish one call first;
During the call, press TRAN key. A new line will be brought up and the first call will be
automatically placed on hold;
Dial the number and press SEND or # to make a second call. (Once the number is entered, a
"Transfer" softkey will show. If "Transfer" softkey is pressed instead of SEND or #, a blind transfer will be performed);
Press TRAN key again. The call will be transferred.
For Auto-Attended Transfer, after dialing out the number for the second call, a "Split" softkey will
show. If the second call is not established yet (ringing), pressing "Split" will hang up the second call. If the second call is established (answered), pressing "Split" will resume the second call and keep the first call on hold.
Note:
To transfer calls across SIP domains, SIP service providers must support transfer across SIP domains.

5-WAY CONFERENCING/3-WAY CONFERENCING

GXP2120/GXP2110/GXP2100 can host up to 5-way conference call with other parties (PCMU/PCMA); GXP14xx can host 3-way conference call with other 2 parties (PCMU/PCMA).
Initiate a conference call.
Establish calls with 2 or more parties respectively;
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While 1 call is active, the other call will be put on hold with its LINE key blinking in green;Press CONF key;Press the desired LINE key on hold, the conference will be established;Repeat the previous 2 steps for all the other parties on hold to join the conference.
Cancel Conference.
If after pressing the CONF key, the user decides not to conference, press Cancel softkey or the
current active LINE key (LED in solid green);
This will resume the 2-way conversation with the current line.
Split and Re-conference.
During the conference, press HOLD key. The conference call will be split and the calls will be put
on hold separately with the LINE keys blinking in green;
Select 1 LINE key and press to resume the 2-way conversation;If users would like to re-establish conference call, before 1 separate LINE is selected, press the
ReConf softkey right after the conference call is held/split;
End Conference.
Press HOLD key to split the conference call. The conference call will be ended with both calls on
hold; Or
Users could press the EndCall softkey or simply hang up the call to terminate the conference call.
GXP2120/GXP2110/GXP2100/GXP14xx supports Easy Conference Mode, which can be used combined with the traditional way to establish the conference.
Initiate a conference call.
Establish 1 call;Press CONF key and a new line will be brought up using the same account;Dial the number and press SEND key to establish the second call;Press CONF key or press the ConfCall softkey to establish the conference.
Join more parties in established conference call.
Establish conference call;Press CONF key and a new line will be brought up using the same account;Dial the number and press SEND key to establish the second call;
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Press CONF key or press the ConfCall softkey to join the new party in the established conference.
Split and Re-conference.
During the conference, press HOLD key. The conference call will be split and both calls will be put
on hold separately with 2 LINE keys blinking in green;
Select 1 LINE key and press to resume the 2-way conversation;If users would like to re-establish conference call, before 1 separate LINE is selected, press the
ReConf softkey right after the conference call is split.
Cancel Conference.
If users decides not to conference after establishing the second call, press EndCall softkey instead
of the ConfCall softkey/CONF key;
This will end the second call and the screen will show the first call on hold.
End Conference.
Press HOLD key to split the conference call. The conference call will be ended with both calls on
hold; Or
Users could press the EndCall softkey or simply hang up the call to terminate the conference call.
Note: The party that starts the conference call has to remain in the conference for its entire duration, you can
put the party on mute but it must remain in the conversation. Also, this is not applicable when the feature "Transfer on Conference Hangup" is turned on.
The option "Disable Conference" has to be set to "No" to establish conference. When using Easy Conference Mode, use SEND key to dial out the second call instead of using #,
even when # could be used as SEND in normal phone calls.

VOICE MESSAGES (MESSAGE WAITING INDICATOR)

A blinking red MWI (Message Waiting Indicator) on the top right corner of the phone indicates a message is waiting. Dial into the voicemail box to retrieve the message by entering the voice mail number of the server or pressing the Voicemail button (Voice Mail User ID has to be properly configured as the voice mail number under Web GUI->Account x->General Settings). An IVR will prompt the user through the process of message retrieval.
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SHARED CALL APPEARANCE (SCA)

The GXP2120/GXP2110/GXP2100/GXP14xx phone supports shared call appearance by Broadsoft standard. This feature allows members of the SCA group to shared SIP lines and provides status monitoring (idle, active, progressing, hold) of the shared line. When there is an incoming call designated for the SCA group, all of the members of the group will be notified of an incoming call and will be able to answer the call from the phone with the SCA extension registered.
All the users that belong to the same SCA group will be notified by visual indicator when a user seizes the line and places an outgoing call, and all the users of this group will not be able to seize the line until the line goes back to an idle state or when the call is placed on hold (with the exception of when multiple call appearances are enabled on the server side).
In the middle of the conversation, there are two types of hold: Public Hold and Private Hold. When a member of the group places the call on public hold, the other users of the SCA group will be notified of this by the red-flashing button and they will be able to resume the call from their phone by pressing the line button. However, if this call is placed on private-hold, no other member of the SCA group will be able to resume that call.
To enable shared call appearance, the user would need to register the shared line account on the phone. In addition, they would need to navigate to "Settings"->"Programmable Keys" on the web UI and set the line key mode as "Shared Line". If the user requires more shared call appearances, the user can configure multiple line buttons to be "shared line" buttons associated with the account.

INSERTING PAUSE INTO SPEED DIALS AND PHONEBOOK ENTRIES

GXP2120/GXP2110/GXP2100/GXP14xx supports to insert pause into speed dials and phonebook entries. There are two types of pause: soft pause and hard pause.
Soft pause:
Insert “,” into a speed dial number or phonebook number. Please see Figure 6 and Figure 7 for the configurations of inserting soft pause for speed dial and phonebook entry, correspondingly.
For example, the destination number is “2001,1”. When dial out, “2001”, the number before comma, will be sent as the caller number first. After the call established, phone will wait 1 second and dial “1”, the number after comma, as DTMF automatically.
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Figure 3: Soft pause for speed dial
Figure 4: Soft pause for phonebook entry
Hard pause:
Insert “;” into a phone number to represent hard pause. The configuration of inserting hard pause is similar to that of soft pause.
For example, number “2003;1” is configured in speed dial or phonebook entry. When the item is dialed, “2003” will be sent as the caller number first. After the call is established, user needs to press DTMF softkey manually to send “1” as DTMF.

CALL FEATURES

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The GXP2120/GXP2110/GXP2100/GXP14xx supports traditional and advanced telephony features
*30
Block Caller ID (for all subsequent calls)
Off hook the phone; Dial *30.
*31
Send Caller ID (for all subsequent calls)
Off hook the phone; Dial *31.
*67
Block Caller ID (per call)
Off hook the phone; Dial *67 and then enter the number to dial out.
*82
Send Caller ID (per call)
Off hook the phone; Dial *82 and then enter the number to dial out.
*70
Disable Call Waiting (per Call)
Off hook the phone; Dial *70 and then enter the number to dial out.
*71
Enable Call Waiting (per Call)
Off hook the phone; Dial *71 and then enter the number to dial out.
*72
Unconditional Call Forward. To set up unconditional call forward:
Off hook the phone; Dial *72 and then enter the number to forward the call; Press OK softkey or SEND key.
*73
Cancel Unconditional Call Forward. To cancel the unconditional call forward:
Off hook the phone; Dial *73; Hang up the call.
*90
Busy Call Forward. To set up busy call forward:
including caller ID, caller ID with caller Name, call forward and etc.
Table 10: CALL FEATURES
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Off hook the phone; Dial *90 and then enter the number to forward the call; Press OK softkey or SEND key.
*91
Cancel Busy Call Forward. To cancel the busy call forward:
Off hook the phone; Dial *91; Hang up the call.
*92
Delayed Call Forward. To set up delayed call forward:
Off hook the phone; Dial *92 and then enter the number to forward the call; Press OK softkey or SEND key.
*93
Cancel Delayed Call Forward. To cancel the delayed call forward:
Off hook the phone; Dial *93; Hang up the call.

CUSTOMIZED LCD SCREEN & XML

The GXP2120/GXP2110/GXP2100/GXP14xx IP phone supports the following XML applications. Please refer to the corresponding link for documentation and templates.
XML custom idle screen (customize idle screen logo, softkey layout, and etc.)
http://www.grandstream.com/products/gxp_series/general/documents/GXP2120/GXP2110/GXP2100_ 14xx_XML_Screen_Customization.zip
XML downloadable phonebook
http://www.grandstream.com/products/gxp_series/general/documents/gxp_wp_xml_phonebook.pdf
XML Application (For GXP2120/GXP2110/GXP2100 only)
http://www.grandstream.com/products/gxp_series/general/documents/xml_application_guide.zip
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CONFIGURATION GUIDE

Call History
Displays call logs for answered calls, dialed calls, missed calls, transferred calls and forwarded calls.
Status
Displays network status, account registration status, software version number, MAC address, hardware version number, P/N number.
Network status.
Press to enter the sub menu for IP setting information (DHCP/Static IP/PPPoE), IPv4 address, IPv6 address, MAC address, Subnet Mask, Gateway and DNS server.
Phone Book
Displays phonebook. Users could add, edit, search and delete contacts/groups
The GXP2120/GXP2110/GXP2100/GXP14xx can be configured via two ways:
LCD Configuration Menu using the phone's keypad; Web GUI embedded on the phone using PC's web browser.

CONFIGURATION VIA KEYPAD

To configure the LCD menu using phone's keypad, follow the instructions below: Enter MENU options. When the phone is in idle, press the round MENU button to enter the
configuration menu;
Navigate in the menu options. Press the arrow keys up/down/left/right to navigate in the menu
options;
Enter/Confirm selection. Press the round MENU button to enter the selected option; Exit. Press LEFT arrow key to exit to the previous menu; The phone automatically exits MENU mode with an incoming call, when the phone is off hook or the
MENU mode if left idle for more than 60 seconds.
When the phone is in idle, pressing the navigation keys UP/DOWN/RIGHT can access the call history
entries: UP - Missed Calls DOWN - Dialed Calls RIGHT - Answered Calls
The MENU options are listed in the following table.
Table 11: CONFIGURATION MENU
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here, or download phonebook XML to the phone. When doing phonebook search, user can only search ASCII characters.
Note: Besides 3 embedded groups: Family, Friends and Work, user can create your own new groups. GXP phone allows at most 7 customized groups.
LDAP Directory
Searches LDAP directory and configures LDAP options. LDAP search does not support entering Non-ASCII characters
Instant Messages
Displays received instant messages.
Direct IP Call
Makes direct IP call.
Preference
Preference sub menu includes the following options:
Do Not Disturb
Enables/disables Do Not Disturb on the phone.
Ring Tone
Configures different ring tones for incoming call.
Ring Volume
Adjusts ring volume by pressing left/right arrow key.
LCD Contrast
Adjusts LCD contrast by pressing left/right arrow key.
LCD Brightness (Not applicable to GXP140x)
Adjusts LCD brightness by pressing left/right arrow key.
Download SCR XML
Triggers the phone to download the XML idle screen file immediately. The XML idle screen server path and downloading method need to be set up correctly from Web GUI first.
Erase Custom SCR
Erases custom XML idle screen previously loaded on the phone. After erasing it, the phone will show default idle screen.
Display Language
Selects the language to be displayed on the phone's LCD. Users could select Automatic for local language based on IP location if available.
Date and Time Settings
Configures date, time and NTP server on the phone.
Star Key Lock
Turns on/off keypad lock feature and configures keypad lock password.
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Config
Config sub menu includes the following options:
SIP
Configures SIP Proxy, Outbound Proxy, SIP User ID, SIP Auth ID, SIP Password, SIP Transport and Audio information to register SIP account on the phone.
Upgrade
Configures firmware server and config server for upgrading and provisioning the phone.
Factory Reset
Resets the phone to factory default settings.
Layer 2 QoS
Configures 802.1Q/VLAN Tag and priority value.
Factory Functions
Factory Functions sub menu includes the following options:
Audio Loopback
Speak to the phone using speaker/handset/headset. If you can hear your voice, your audio is working fine. Press Menu button to exit audio loopback mode.
Diagnostic Mode
All LEDs will light up. Press any key (except MENU key) on the keypad to display the button name in the LCD. Lift and put back the handset or press Menu button to exit diagnostic mode.
Keyboard Diagnostic
Press all the available keys on the phone. The LCD will display the name for the keys to be pressed to finish the keyboard diagnostic mode.
Network
Selects IP mode (DHCP/Static IP/PPPoE); Configures PPPoE account ID and password; Configures IP address, Netmask, Gateway, DNS Server 1 and DNS Server 2; Configures 802.1X mode.
Call Features
Configures call forward features for Forward All, Forward Busy, Forward No Answer and No Answer Timeout.
Voice Mails
Displays voicemail message information in the format below: new messages/all messages (urgent messages/all urgent messages)
UCM Connection
UCM Server List
Displays connected UCM server List.
Input Server IP Manually
Specifies Protocol, IP and Port of the target UCM server
Reboot
Reboot the phone.
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Exit
Exit from this menu.
The following picture shows the keypad MENU configuration flow.
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Direct IP Call
Call Features
MENU
Answered Calls
Dialed Calls
Back
Groups
Download Phonebook XML
Back
First Name
Cancel & Return
Search
Back
Server Address
LDAP Number Filter
...
Do Not Disturb
Back
SIP
Back
Audio Loopback
Back
Enable DND
Back
Default Ring
Back
Account
Cancel
Firmware Server
Back
802.1Q/VLAN Tag
Back
IP Setting
Back
Account X
Forward All
Forward No Answer
Missed Calls Transferred Calls Clear All
Last Name Number Acct Groups Confirm Add
Call History
Status
Phone Book
LDAP Directory
Instant Messages
Preference
Config
Factory Functions
Network
New Entry Search
Delete All Entries
LDAP Configuration
Ring Tone Ring Volume LCD Contrast *LCD Brightness Download SCR XML Erase Custom SCR Display Language Time Settings Star Key Lock
Upgrade Factory Reset Layer 2 QoS
Diagnostic Mode Keyboard Diagnostic
Port Base User Name Password
LDAP Name Filter LDAP Version
Disable DND
Ring1 Ring2 Ring 3
SIP Proxy Outbound Proxy SIP User ID SIP Auth ID SIP Password SIP Transport Audio Save
Voice Mails
Reboot
Exit
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PPPoE Settings IP Netmask Gateway DNS Server 1 DNS Server 2
802.1X
Figure 5: Keypad MENU Flow
Config Server Upgrade Via
Priority value Reset Vlan Config
Forward Busy
No Answer Timeout
Note:
User Level
Password
Web Pages Allowed
End User Level
123
Only Status and Basic Settings
Administrator Level
admin
Browse all pages
*LCD Brightness is not applicable to GXP140x.

CONFIGURATION VIA WEB BROWSER

The GXP2120/GXP2110/GXP2100/GXP14xx embedded Web server responds to HTTP/HTTPS GET/POST requests. Embedded HTML pages allow a user to configure the IP phone through a Web browser such as Microsoft’s IE, Mozilla Firefox and Google Chrome.
To access the Web GUI:
1. Connect the computer to the same network as the phone;
2. Make sure the phone is turned on and shows its IP address. You may check the IP address on the LCD or go to MENU->Status->Network Status;
3. Open a Web browser on your computer;
4. Enter the phone’s IP address in the address bar of the browser;
5. Enter the administrator’s login and password to access the Web Configuration Menu.
Note:
The computer has to be connected to the same sub-network as the phone. This can be easily done by
connecting the computer to the same hub or switch as the phone connected to. In absence of a hub/switch (or free ports on the hub/switch), please connect the computer directly to the PC port on the back of the phone;
If the phone is properly connected to a working Internet connection, the IP address of the phone will
display in MENU->Status->Network Status. This address has the format: xxx.xxx.xxx.xxx, where xxx stands for a number from 0-255. Users will need this number to access the Web GUI. For example, if the phone has IP address 192.168.40.154, please enter "http://192.168.40.154" in the address bar of the browser;
There are two default passwords for the login page:
The password is case sensitive with maximum length of 25 characters.
When changing any settings, always SUBMIT them by pressing the "Save" or "Save and Apply" button
on the bottom of the page. If the change is saved only but not applied, after making all the changes, click on the "APPLY" button on top of the page to submit. After submitting the changes in all the Web GUI pages, reboot the phone to have the changes take effect if necessary (All the options under "Accounts" page and "Phonebook" page do not require reboot. Most of the options under "Settings" page do not require reboot).
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DEFINITIONS

Status -> Account Status
Account x
Account index.
SIP User ID
Displays the configured SIP User ID.
SIP Server
Displays the configured SIP Server address.
SIP Registration
Displays SIP registration status YES/NO.
Status -> Network Status
MAC Address
Global unique ID of device, in HEX format. The MAC address will be used for provisioning and can be found on the label coming with original box and on the label located on the back of the device.
IP Setting
DHCP, Static IP or PPPoE.
IPv4 Address
The IPv4 address obtained on the phone.
IPv6 Address
The IPv6 address obtained on the phone.
Subnet Mask
The subnet mask obtained on the phone.
Gateway
The gateway address obtained on the phone.
DNS Server 1
The DNS server address 1.
DNS Server 2
The DNS server address 2.
NTP Server
The NTP server phone uses to sync up time.
PPPoE Link Up
PPPoE connection status.
802.1q/802.1p(LLDP)
The 802.1q/802.p status.
802.1q/VLAN Tag
The assigned VLAN tag on phone.
802.1q Priority
The assigned 802.1q priority on phone.
This section describes the options in the phone's Web GUI. As mentioned, you can log in as an administrator or an end user.
Status: Displays the Account status, Network status, and System Info of the phone; Account: To configure the SIP account; Network: To configure network settings; Settings: To configure call features, ring tone, LCD display, Web services, XML applications,
programmable keys, and etc;
Maintenance: To configure web/Telnet access, upgrading and provisioning, language settings,
TR-069, security and etc.
Phonebook: To manage Phonebook and LDAP.

STATUS PAGE DEFINITIONS

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NTP Server
The NTP server phone uses to sync up time.
Status -> System Info
Product Model
Product model of the phone.
Part Number
Product part number.
Software Version
Boot: boot version number; Core: core version number; Base: base version number; Prog: program version number. This is the main firmware release number,
which is always used for identifying the software system of the phone;
Aux: Aux version number; Dsp: DSP version number.
System Up Time
System up time since the last reboot.
System Time
Current system time on the phone system.
Service Status
GUI and Phone service status.
Core Dump
Core dump file that could be downloaded for troubleshooting purpose.

ACCOUNTS PAGE DEFINITIONS

Account x -> General Settings
Account Active
Activates/deactivates account. The default setting is "Yes".
Account Name
The name associated with the SIP account.
SIP Server
The URL or IP address, and port of the SIP server. This is provided by your VoIP service provider (ITSP).
Secondary SIP Server
The URL or IP address, and port of the SIP server. This will be used when the primary SIP server fails.
Outbound Proxy
IP address or Domain name of the Primary Outbound Proxy, Media Gateway, or Session Border Controller. It's used by the phone for Firewall or NAT penetration in different network environments. If a symmetric NAT is detected, STUN will not work and ONLY an Outbound Proxy can provide a solution.
Backup Outbound Proxy
Secondary Outbound Proxy which will be used when the primary proxy cannot be connected.
SIP User ID
User account information, provided by your VoIP service provider (ITSP). It's usually in the form of digits similar to phone number or actually a phone number.
Authenticate ID
SIP service subscriber's Authenticate ID used for authentication. It can be identical to or different from the SIP User ID.
Authenticate Password
The account password required for the phone to authenticate with the ITSP
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(SIP) server before the account can be registered. After it is saved, this will appear as hidden for security purpose.
Name
The SIP server subscriber's name (optional) that will be used for Caller ID display.
Voice Mail User ID
Allows you to access voice messages by pressing the MESSAGE button on the phone. This ID is usually the VM portal access number. For example, in Asterisk server, 8500 could be used.
Account x -> Network Settings
DNS Mode
This parameter controls how the Search Appliance looks up IP addresses for hostnames. There are four modes: A Record, SRV, NATPTR/SRV, Use Configured IP. The default setting is "A Record". If the user wishes to locate the server by DNS SRV, the user may select "SRV" or "NATPTR/SRV". If "Use Configured IP" is selected, please fill in the three fields below: Primary IP: The primary IP address where the phone sends DNS query
to;
Backup IP 1; Backup IP 2.
If SIP server is configured as domain name, phone will not send DNS query,
but use “Primary IP” or “Backup IP x” to send SIP message if at least one of
them are not empty. Phone will try to use “Primary IP” first. After 3 tries without any response, it will switch to “Backup IP x”, and then it will switch back to “Primary IP” after 3 re-tries.
If SIP server is already an IP address, phone will use it directly even “User Configured IP” is selected.
NAT Traversal
This parameter configures whether the NAT traversal mechanism is activated. Users could select the mechanism from No, STUN, Keep-Alive, UPnP, Auto or VPN. If set to "STUN" and STUN server is configured, the phone will route according to the STUN server. If NAT type is Full Cone, Restricted Cone or Port-Restricted Cone, the phone will try to use public IP addresses and port number in all the SIP&SDP messages. The phone will send empty SDP packet to the SIP server periodically to keep the NAT port open if it is configured to be "Keep-Alive". Configure this to be "No" if an outbound proxy is used. "STUN" cannot be used if the detected NAT is symmetric NAT.
Proxy-Require
A SIP Extension to notify the SIP server that the phone is behind a NAT/Firewall. Do not configure this parameter unless this feature is supported on the SIP server.
Account x -> SIP Settings -> Basic Settings
TEL URI
If the phone has an assigned PSTN telephone number, this field should be set
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to "User=Phone". Then a "User=Phone" parameter will be attached to the Request-Line and "TO" header in the SIP request to indicate the E.164 number. If set to "Enable", "Tel:" will be used instead of "SIP:" in the SIP request. The default setting is "Disable".
SIP Registration
Selects whether or not the phone will send SIP Register messages to the proxy/server. The default setting is "Yes".
Unregister On Reboot
If set to "Yes", the SIP user's registration information will be cleared when the phone reboots. The SIP Contact header will contain "*" to notify the server to unbind the connection. The default setting is "No".
Register Expiration
Specifies the frequency (in minutes) in which the phone refreshes its registration with the specified registrar. The default value is 60 minutes. The maximum value is 64800 minutes (about 45 days).
Reregister Before Expiration
Specifies the time frequency (in seconds) that the phone sends re-registration request before the Register Expiration. The default value is 0.
Enable OPTIONS Keep Alive
Enable OPTIONS Keep Alive to check SIP server status.
OPTIONS Keep Alive Interval
Time interval for OPTIONS Keep Alive feature in seconds.
OPTIONS Keep Alive Max Lost
Number of max host packets for OPTIONS Keep Alive feature before the phone re-registration.
Local SIP Port
Defines the local SIP port used to listen and transmit. The default value is 5060 for Account 1, 5062 for Account 2, 5064 for Account 3, 5066 for Account 4, 5068 for Account 5, 5070 for Account 6.
SIP Registration Failure Retry Wait Time
Specifies the interval to retry registration if the process is failed. The default value is 20 seconds.
SIP T1 Timeout
SIP T1 Timeout. The default setting is 0.5 seconds.
SIP T2 interval
SIP T2 Interval. The default setting is 4 seconds.
SIP Transport
Determines the network protocol used for the SIP transport. Users can choose from TCP, UDP and TLS.
SIP URI Scheme when using TLS
Specifies if "sip:" or "sips:" will be used when TLS/TCP is selected for SIP Transport. The default setting is "sips:".
Use Actual Ephemeral Port in Contact with TCP/TLS
This option is used to control the port information in the Via header and Contact header. If set to No, these port numbers will use the permanent listening port on the phone. Otherwise, they will use the ephemeral port for the particular connection.
Remove OBP from route
Configures to remove outbound proxy from route. This is used for the SIP Extension to notify the SIP server that the device is behind a NAT/Firewall.
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Support SIP Instance ID
Defines whether SIP Instance ID is supported or not. The default setting is "Yes".
SUBSCRIBE for MWI
When set to "Yes", a SUBSCRIBE for Message Waiting Indication will be sent periodically. The phone supports synchronized and non-synchronized MWI. The default setting is "No".
SUBSCRIBE for Registration
When set to "Yes", a SUBSCRIBE for Registration will be sent out periodically. The default setting is "No".
Enable 100rel
The use of the PRACK (Provisional Acknowledgment) method enables reliability to SIP provisional responses (1xx series). This is very important in order to support PSTN internetworking. To invoke a reliable provisional response, the 100rel tag is appended to the value of the required header of the initial signaling messages.
Caller ID Display
When set to "Auto", the phone will look for the caller ID in the order of P-Asserted Identity Header, Remote-Party-ID Header and From Header in the incoming SIP INVITE. When set to "Disabled", all incoming calls are displayed with "Unavailable". When set to "From Header", the phone will display the caller ID based on the From Header in the incoming SIP INVITE. The default setting is "Auto".
Use Privacy Header
Controls whether the Privacy Header will present in the SIP INVITE message or not. The default setting is "default": the Privacy Header will show in INVITE unless "Huawei IMS" special feature is on. If set to "Yes", the Privacy Header will always show in INVITE. If set to "No", the Privacy Header will not show in INVITE.
Use P-Preferred-Identity Header
Controls whether the P-Preferred-Identity Header will present in the SIP INVITE message or not. The default setting is "default": the P-Preferred-Identity Header will show in INVITE unless "Huawei IMS" special feature is on. If set to "Yes", the P-Preferred-Identity Header will always show in INVITE. If set to "No", the P-Preferred-Identity Header will not show in INVITE.
Ignore Alert-Info header
Configured default ringtone will be played by ignoring Alter-Info header.
Account x -> SIP Settings -> Advanced Features
Broadsoft Call Center
Default setting is "No". When set to "Yes", a soft key “BSCCenter” is displayed on LCD. User can access different Broadsoft Call Center agent features via this soft key. Please note that “Feature Key Synchronization” will be enabled regardless of this setting.
Hoteling Event
Broadsoft Hoteling event feature. Default setting is "No". With “Hoteling Event” enabled, user can access the Hoteling feature option by pressing the “BSCCenter” soft key.
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Call Center Status
When set to "Yes", the phone will send SUBSCRIBE to the server to obtain call center status. The default setting is "No".
Publish to Call Center
When set to "Yes", users could select "Away", "Online" or "Busy" from LCD menu and publish it to call center. The default setting is "No".
Feature Key Synchronization
This feature is used for Broadsoft call feature synchronization. When it's enabled, DND, Call Forward features and Call Center Agent status can be synchronized between Broadsoft server and phone. The default setting is "Disabled".
Broadsoft Call Park
When this option enabled, phone will send SUBSCRIBE to Broadsoft server to obtain Call Park notifications.
Line Seize Timeout
For Shared Call Appearance, phone must send a SUBSCRIBE-request for the line-seize event package whenever a user attempts to take the shared line off hook. “Line Seize Timeout” is the line-seize event expiration timer. The default value is 15 seconds.
Eventlist BLF URI
Configures the eventlist BLF URI on the phone to monitor the extensions in the list with Multi Purpose Key. If the server supports this feature, users need to configure an eventlist BLF URI on the service side first (i.e., BLF1006@myserver.com) with a list of extension included. On the phone, in this "eventlist BLF URI" field, fill in the URI without the domain (i.e., BLF1006). To monitor the extensions in the list, under Web GUI->Settings->Programmable Keys page, please select "eventlist BLF" in the key mode, choose account, enter the value of each extension in the list.
Conference URI
Configures the conference URI when using Broadsoft N-way calling feature.
Music On Hold URI
Configures Music On Hold URI to call when a call is on hold. This feature has to be supported on the server side.
Force BLF Call-pickup by prefix
Configures to always use the prefix to BLF Call-pickup. BLF Call-pickup Prefix
Configures the prefix prepended to the BLF extension when the phone picks up a call with BLF key. The default setting is **.
PUBLISH for Presence
Enables presence feature on the phone. The default setting is "No".
Special Feature
Different soft switch vendors have special requirements. Therefore users may need select special features to meet these requirements. Users can choose from Standard, Nortel MCS, Broadsoft, CBCOM, RNK, Sylantro, Huawei IMS or Phonepower depending on the server type. The default setting is "Standard". Phonepower is for GXP14xx only.
Account x -> SIP Settings -> Session Timer
Session Expiration
The SIP Session Timer extension that enables SIP sessions to be periodically
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"refreshed" via a SIP request (UPDATE, or re-INVITE). If there is no refresh via an UPDATE or re-INVITE message, the session will be terminated once the session interval expires. Session Expiration is the time (in seconds) where the session is considered timed out, provided no successful session refresh transaction occurs beforehand. The default value is 180 seconds.
Min-SE
The minimum session expiration (in seconds). The default value is 90 seconds.
Caller Request Timer
If set to "Yes" and the remote party supports session timers, the phone will use a session timer when it makes outbound calls.
Callee Request Timer
If set to "Yes" and the remote party supports session timers, the phone will use a session timer when it receives inbound calls.
Force Timer
If Force Timer is set to "Yes", the phone will use the session timer even if the remote party does not support this feature. If Force Timer is set to "No", the phone will enable the session timer only when the remote party supports this feature. To turn off the session timer, select "No".
UAC Specify Refresher
As a Caller, select UAC to use the phone as the refresher; or select UAS to use the Callee or proxy server as the refresher.
UAS Specify Refresher
As a Callee, select UAC to use caller or proxy server as the refresher; or select UAS to use the phone as the refresher.
Force INVITE
The Session Timer can be refreshed using the INVITE method or the UPDATE method. Select "Yes" to use the INVITE method to refresh the session timer.
Account x -> SIP Settings -> Security Settings
Check Domain Certificates
Choose whether the domain certificates will be checked or not when TLS/TCP is used for SIP Transport. The default setting is "No".
Validate Incoming Messages
Choose whether the incoming messages will be validated or not. The default setting is "No".
Check SIP User ID for incoming INVITE
If set to "Yes", SIP User ID will be checked in the Request URI of the incoming INVITE. If it doesn't match the phone's SIP User ID, the call will be rejected. The default setting is "No".
Accept Incoming SIP from Proxy Only
When set to "Yes", the SIP address of the Request URL in the incoming SIP message will be checked. If it doesn't match the SIP server address of the account, the call will be rejected. The default setting is "No".
Authenticate Incoming INVITE
If set to "Yes", the phone will challenge the incoming INVITE for authentication with SIP 401 Unauthorized response. The default setting is "No".
Account x -> Audio Settings
Send DTMF
Specifies the mechanism to transmit DTMF digits. There are 3 supported modes: in audio which means DTMF is combined in the audio signal (not very
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reliable with low-bit-rate codecs), via RTP (RFC2833), or via SIP INFO.
DTMF Payload Type
Configures the payload type for DTMF using RFC2833. The default value is
101.
Preferred Vocoder
7 different vocoder types are supported on the phone, including G.711 U-law (PCMU), G.711 A-law (PCMA), G.723.1, G.729A/B, G.722 (wide band), iLBC and G72-32. Users can configure vocoders in a preference list that is included with the same preference order in SDP message.
Use First Matching Vocoder in 200OK SDP
When set to "Yes", the device will use the first matching vocoder in the received 200OK SDP as the codec. The default setting is "No".
SRTP Mode
Enables the SRTP mode based on your selection. The default setting is "Disabled".
Crypto Life Time
Choose whether to include the lifetime parameter in SRTP crypto offer.
Symmetric RTP
Defines whether symmetric RTP is supported or not. The default setting is "No".
Silence Suppression
Controls the silence suppression/VAD feature of the audio codec G.723 and G.729. If set to "Yes", when silence is detected, a small quantity of VAD packets (instead of audio packets) will be sent during the period of no talking. If set to "No", this feature is disabled. The default setting is "No".
Voice Frames Per TX
Configures the number of voice frames transmitted per packet. When configuring this, it should be noted that the "ptime" value for the SDP will change with different configurations here. This value is related to the codec used and the actual frames transmitted during the in payload call. For end users, it is recommended to use the default setting, as incorrect settings may influence the audio quality.
G723 Rate
Selects encoding rate for G723 codec. The default value is 5.3kbps.
G.726-32 Packing Mode
Selects "ITU" or "IETF" for G726-32 packing mode.
iLBC Frame Size
Selects iLBC packet frame size. The default value is 30ms.
iLBC Payload Type
Specifies iLBC Payload type. The default value is 97. The valid range is between 96 and 127.
Jitter Buffer Type
Selects either Fixed or Adaptive based on network conditions. The default setting is "Adaptive".
Jitter Buffer Length
Selects Low, Medium, or High based on network conditions. The default setting is "Medium".
Account x -> Call Settings
Early Dial
Selects whether or not to enable early dial. If it's set to "Yes", the SIP proxy must support 484 response. The default setting is "No".
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Dial Plan Prefix
Sets the prefix added to each dialed number.
Dial Plan
A dial plan establishes the expected number and pattern of digits for a telephone number. This parameter configures the allowed dial plan for the phone.
Dial Plan Rules:
1. Accepted Digits: 1,2,3,4,5,6,7,8,9,0 , *, #, A,a,B,b,C,c,D,d;
2. Grammar: x - any digit from 0-9; a) xx+ or xx. - at least 2 digit numbers b) xx - only 2 digit numbers c) ^ - exclude d) [3-5] - any digit of 3, 4, or 5 e) [147] - any digit of 1, 4, or 7 f) <2=011> - replace digit 2 with 011 when dialing g) | - the OR operand
Example 1: {[369]11 | 1617xxxxxxx} Allow 311, 611, and 911 or any 10 digit numbers with leading digits 1617;
Example 2: {^1900x+ | <=1617>xxxxxxx} Block any number of leading digits 1900 or add prefix 1617 for any dialed 7 digit numbers;
Example 3: {1xxx[2-9]xxxxxx | <2=011>x+} Allows any number with leading digit 1 followed by a 3 digit number, followed by any number between 2 and 9, followed by any 7 digit number OR Allows any length of numbers with leading digit 2, replacing the 2 with 011 when dialed.
Example of a simple dial plan used in a Home/Office in the US: { ^1900x. | <=1617>[2-9]xxxxxx | 1[2-9]xx[2-9]xxxxxx | 011[2-9]x. | [3469]11 }
Explanation of example rule (reading from left to right):
^1900x. - prevents dialing any number started with 1900; <=1617>[2-9]xxxxxx - allows dialing to local area code (617) numbers by
dialing 7 numbers and 1617 area code will be added automatically;
1[2-9]xx[2-9]xxxxxx |- allows dialing to any US/Canada Number with 11
digits length;
011[2-9]x - allows international calls starting with 011;
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[3469]11 - allows dialing special and emergency numbers 311, 411, 611
and 911.
Note: In some cases where the user wishes to dial strings such as *123 to activate voice mail or other applications provided by their service provider, the * should be predefined inside the dial plan feature. An example dial plan will be: { *x+ } which allows the user to dial * followed by any length of numbers.
Delayed Call Forward Wait Time
Defines the timeout (in seconds) before the call is forwarded on no answer. The default value is 20 seconds.
Enable Call Features
The default setting is "Yes". When enabled, call features using star codes will be supported locally. If set to "No", Call Features and DND options under LCD menu are supported. And ForwardAll soft key will not be displayed in LCD for Account 1.
Call Log
Configures Call Log setting on the phone. You can log all calls, only log incoming/outgoing calls or disable call log. The default setting is "Log All Calls".
Account Ring Tone
Allows users to configure the ringtone for the account. Users can choose from different ringtones from the dropdown menu.
Match Incoming Caller ID
Specifies matching rules with number, pattern or Alert Info text. When the incoming caller ID or Alert Info matches the rule, the phone will ring with selected distinctive ringtone. Matching rules:
Specific caller ID number. For example, 8321123; A defined pattern with certain length using x and + to specify, where x
could be any digit from 0 to 9. Samples:
xx+ : at least 2-digit number; xx : only 2-digit number;
[345]xx: 3-digit number with the leading digit of 3, 4 or 5; [6-9]xx: 3-digit number with the leading digit from 6 to 9.
Alert Info text
Users could configure the matching rule as certain text (e.g., priority) and select the custom ring tone mapped to it. The custom ring tone will be used if the phone receives SIP INVITE with Alert-Info header in the following format: Alert-Info: <http://127.0.0.1>; info=priority
Selects the distinctive ring tone for the matching rule. When the incoming caller ID or Alert Info matches the rule, the phone will ring with the selected ring.
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Ring Timeout
Defines the timeout (in seconds) for the rings on no answer. The default setting is 60 seconds.
Send Anonymous
If set to "Yes", the "From" header in outgoing INVITE messages will be set to anonymous, essentially blocking the Caller ID to be displayed.
Anonymous Call Rejection
If set to "Yes", anonymous calls will be rejected. The default setting is "No".
Auto Answer
If set to "Yes", the phone will automatically turn on the speaker phone to answer incoming calls after a short reminding beep.
Allow Auto Answer by Call-Info
If set to "Yes", the phone will automatically turn on the speaker phone to answer incoming calls after a short reminding beep, based on the SIP info header sent from the server/proxy. The default setting is "No".
Refer-To Use Target Contact
If set to "Yes", the "Refer-To" header uses the transferred target's Contact header information for attended transfer. The default setting is "No".
Transfer on Conference Hangup
Defines whether or not the call is transferred to the other party if the initiator of the conference hangs up. The default setting is "No".
No Key Entry Timeout (s)
Defines the timeout (in seconds) for no key entry. If no key is pressed after the timeout, the digits will be sent out. The default value is 4 seconds.
Use # as Dial Key
Allows users to configure the "#" key as the "Send" key. If set to "Yes", the "#" key will immediately dial out the input digits. In this case, this key is essentially equivalent to the "Send" key. If set to "No", the "#" key is included as part of the dialing string.
Hold Method
Specifies Hold method to Auto or RFC3264. Auto is to satisfy both rfc3264 and rfc2xxx for the maximum capability.
DND Call Feature On
Configures feature code to turn on DND
DND Call Feature Off
Configures feature code to turn off DND

SETTINGS PAGE DEFINITIONS

Settings -> General Settings
Local RTP Port
This parameter defines the local RTP port used to listen and transmit. It is the base RTP port for channel 0. When configured, channel 0 will use this port _value for RTP; channel 1 will use port_value+2 for RTP. Local RTP port ranges from 1024 to 65400 and must be even. The default value is 5004.
Use Random Port
When set to "Yes", this parameter will force random generation of both the local SIP and RTP ports. This is usually necessary when multiple phones are behind the same full cone NAT. The default setting is "Yes" (This parameter must be set to "No" for Direct IP Calling to work).
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Keep-alive Interval
Specifies how often the phone sends a blank UDP packet to the SIP server in order to keep the "ping hole" on the NAT router to open. The default setting is 20 seconds.
Use NAT IP
The NAT IP address used in SIP/SDP messages. This field is blank at the default settings. It should ONLY be used if it's required by your ITSP.
STUN Server
The IP address or Domain name of the STUN server. STUN resolution results are displayed in the STATUS page of the Web GUI. Only non-symmetric NAT routers work with STUN.
Public Mode
Configures to turn on/off public mode for hot desking feature on the phone. If set to "Yes", users would need fill in the SIP Server address for account 1 as well. Then reboot the phone. When the phone boots up, users will need enter SIP User ID and Password on the LCD to login and use the phone.
Note:
When the phone is in public mode login screen, press CONF button will have the IP address of the phone displayed.
Public Mode Login Expiration
Expiration time is 0 to 24 hours. After time expiration, phone will auto log out.
Settings -> Call Features
Off-hook Auto Dial
Configures a User ID/extension to dial automatically when the phone is off hook. The phone will use the first account to dial out. The default setting is "No".
Off-hook Timeout
If configured, when the phone is on hook, it will go off hook after the timeout (in seconds). The default value is 30 seconds.
Intercom User ID
Configures the intercom extension number for account 1 to dial out (Not applicable to GXP14xx). This User ID is mapped to the INTERCOM button on the phone.
Disable Call Waiting
Disables the call waiting feature. The default setting is "No".
Disable Call Waiting Tone
Disables the call waiting tone when call waiting is on. The default setting is "No".
Disable Direct IP Call
Disables Direct IP Call. The default setting is "No".
Use Quick IP Call mode
When set to "Yes", users can dial an IP address under the same LAN/VPN segment by entering the last octet in the IP address. To dial quick IP call, off hook the phone and dial #XXX (X is 0-9 and XXX <=255), phone will make direct IP call to aaa.bbb.ccc.XXX where aaa.bbb.ccc comes from the local IP address REGARDLESS of subnet
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mask. #XX or #X are also valid so leading 0 is not required (but OK). No SIP server is required to make quick IP call. The default setting is "No".
Disable Conference
Disables the Conference function. The default setting is "No".
Disable in-call DTMF Display
When it's set to "Yes", the DTMF digits entered during the call will not display. The default setting is "No".
Enable sending DTMF via Speed Dial
Enables Multi Purpose Key to send DTMF during the call (Not applicable to GXP14xx). The default setting is "No".
Disable DND Button
If set to "Yes", the DND button will not set the phone to DND. The default setting is "No".
Disable Transfer
Disables the Transfer function. The default setting is "No".
Enable Idle Mute
If this feature is enabled, MUTE key will take effect in idle state and future incoming call will be answered with mute.
In-call dial number on pressing transfer key
Configures the number for the phone to dial as DTMF during the call using TRAN button.
Auto-Attended Transfer
If set to "Yes", the phone will use attended transfer by default. The default setting is "No".
Do Not Escape # as %23 in SIP URI
Specifies whether to replace # by %23 or not for some special situations. The default setting is "No".
Click-To-Dial Feature
Enables Click-To-Dial feature. The default setting is "Disabled".
Blink message LED on ringing(for GXP140x only)
Message LED light will blink if there is an incoming call.
Call History Flash Writing: Write Timeout
Defines the interval (in seconds) to save the call history to phone's flash. The default value is 300 seconds.
Call History Flash Writing: Max Unsaved Log
Defines the number of unsaved logs before written to phone's flash. The default value is 200 entries.
Settings -> Multicast Paging
Paging Barge
During active call if incoming multicast page is higher priority than this value the call will be held and multicast page will be played. Note: 1 is the highest value.
Paging Priority Active
If enabled, during a multicast page if another rmulticast is received with higher priority, that one will be played instead. Note: 1 is the highest value.
Multicast Paging Codec
The codec for sending multicast pages.
Multicast Listening
Defines multicast listening addresses and labels.
Settings -> Ring Tone
Call Progresses Tones:
Configures ring or tone frequencies based on parameters from local
System Ring Tone Dial Tone Second Dial Tone Message Waiting Ring Back Tone Call-Waiting Tone Busy Tone Reorder Tone
telecom. The default value is North American standard. Frequencies should be configured with known values to avoid uncomfortable high pitch sounds.
Syntax: f1=val,f2=val[,c=on1/off1[-on2/off2[-on3/off3]]]; (Frequencies are in Hz and cadence on and off are in 10ms)
ON is the period of ringing (“On time” in ‘ms’) while OFF is the period of
silence. In order to set a continuous ring, OFF should be zero. Otherwise it will ring ON ms and a pause of OFF ms and then repeat the pattern. Up to three cadences are supported.
Call Waiting Tone Gain
Configures the call waiting tone gain to adjust call waiting tone volume. The default setting is "Low".
Settings -> Audio Control
Headset Key Mode
When headset is connected to the phone, users could use the HEADSET button in "Default Mode" or "Toggle Headset/Speaker".
Default Mode:
When the phone is in idle, press HEADSET button to off hook
the phone and make calls by using headset. Headset icon will display on the screen in dialing/talking status.
When there is an incoming call, press HEADSET button to pick
up the call using headset.
When there is an active call using headset, press HEADSET
button to hang up the call.
When Speaker/Handset is being used in dialing/talking status,
press HEADSET button to switch to headset. Press it again to hang up the call. Or press speaker/Handset to switch back to the previous mode.
Toggle Headst/Speaker:
When the phone is in idle, press HEADSET button to switch to
Headset mode. The headset icon will display on the left side of the screen. In this mode, if pressing Speaker button or Line key to off hook the phone, headset will be used.
When there is an active call, press HEADSET button to toggle
between Headset and Speaker.
Always Ring Speaker
Configures to enable or disable the speaker to ring when headset is used on "Toggle Headset/Speaker" mode. If set to "Yes", when the phone is in Headset "Toggle Headset/Speaker" mode, both headset and speaker will
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ring on incoming call. The default setting is "No".
Headset TX gain
Configures the transmission gain of the headset. The default value is 0dB.
Headset RX gain
Configures the receiving gain of the headset. The default value is 0dB.
Handset TX gain
Configures the transmission gain of the handset. The default value is 0 dB.
Settings -> LCD Display
Backlight Brightness: Active
Configures the LCD backlight brightness level (from 0 to 8) for phone's active status. The default value is 6.
Note:
This options is not applicable to GXP140x.
Backlight Brightness: Idle
Configures the LCD backlight brightness level (from 0 to 8) for phone's idle status. The default value is 2.
Note:
This options is not applicable to GXP140x.
LCD Contrast
Configures the LCD contrast level (from 0 to 20). The default value is 10.
Disable Missed Call Backlight
When it's set to "Yes", the LCD backlight will not be turned on when there is a new missed call. The default setting is "No".
Note:
This option is not applicable to GXP140x.
Settings -> Date and Time
NTP Server
Defines the URL or IP address of the NTP server. The phone may obtain the date and time from the server.
Allow DHCP Option 42 Override NTP Server
Defines whether DHCP Option 42 should override NTP server or not. When enabled, DHCP Option 42 will override the NTP server if it's set up on the LAN. The default setting is "Yes".
Time Zone
Configures the date/time used on the phone according to the specified time zone.
Self-Defined Time Zone
This parameter allows the users to define their own time zone. The syntax is: std offset dst [offset], start [/time], end [/time] Default is set to: MTZ+6MDT+5,M4.1.0,M11.1.0
MTZ+6MDT+5 This indicates a time zone with 6 hours offset with 1 hour ahead which is
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U.S central time. If it is positive (+) if the local time zone is west of the Prime Meridian (A.K.A: International or Greenwich Meridian) and negative (-) if it is east. M4.1.0,M11.1.0 The 1st number indicates Month: 1,2,3.., 12 (for Jan, Feb, .., Dec) The 2nd number indicates the nth iteration of the weekday: (1st Sunday, 3rd Tuesday…) The 3rd number indicates weekday: 0,1,2,..,6( for Sun, Mon, Tues, ... ,Sat) Therefore, this example is the DST which starts from the First Sunday of April to the 1st Sunday of November.
Date Display Format
Configures the date display format on the LCD. The following formats are supported:
yyyy-mm-dd: 2012-07-02 mm-dd-yyyy: 07-02-2012 dd-mm-yyyy: 02-07-2012 dddd, MMMM dd: Friday, October 12 MMMM dd, dddd: October 12, Friday
Time Display Format
Configures the time display in 12-hour or 24-hour format on the LCD. The default setting is in 12-hour format.
Settings -> Web Service
Enable Weather Update
Configures to enable or disable weather update on the phone. The default setting is "Yes". If set to "No", the weather information screen will not show.
City Code
Configures weather city code for the phone to look up the weather information. The default setting is "Automatic" and the weather information will be obtained based on the IP location of the phone if available. Otherwise, specify the self-defined city code. For example, USCA0638 is the city code for Los Angeles, CA, United States.
Update Interval
Specifies the weather update interval (in minutes). The default value is 15 minutes.
Degree Unit
Specifies the degree unit for the weather information to display on the phone.
Enable Currency Update
Configures to enable or disable currency update on the phone. The default setting is "Yes". If set to "No", the currency information screen will not show.
Note:
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This option is not applicable to GXP14xx.
Currency Code
Configures currency code for the phone to look up and display the currency information.
Note:
This option is not applicable to GXP14xx.
Settings -> XML Applications
Idle Screen XML Download
Configures to enable idle screen XML download. Users could select HTTP/HTTPS/TFTP to download the XML idle screen file. The default setting is "No".
Download Screen XML At Boot-up
If set to "Yes", the idle screen XML file will be downloaded when the phone boots up. The default setting is "No".
User Custom Filename
Specifies the custom file for the idle screen XML file to be downloaded.
Idle Screen XML Server Path
Configures the server path to download the idle screen XML file. This field could be IP address or URL, with up to 256 characters.
XML Application Server Path
Configures the server path to download the idle screen XML file. This field could be IP address or URL, with up to 256 characters.
Note:
This option is not applicable to GXP14xx.
XML Application Soft key Label
Specifies the soft key name displayed on the idle screen for the users to enter XML application. Please make sure the label name does not exceed the soft key range on each model. The default value is "XML Service".
Note:
This option is not applicable to GXP14xx.
Settings -> Programmable Keys
Line Key X
Assigns a function to the corresponding line key. The key mode options are: Line
Regular line key to open up a line and switch line. The Value field can be left blank.
Shared Line
Share line for Shared Line Appearance feature. Select the Account registered as Shared line for the line key. The Value field can be left blank.
Speed Dial
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Select the Account to dial from. And enter the Speed Dial number in the Value field to be dialed.
Busy Lamp Field (BLF)
Select the Account to monitor the BLF status. Enter the extension number in the Value field to be monitored.
Presence Watcher
This option has to be supported by a presence server and it is tied to the "Do Not Disturb" status of the phone's extension.
Eventlist BLF
This option is similar to the BLF option but in this case the PBX collects the information from the phones and sends it out in one single notify message. PBX server has to support this feature.
Speed Dial via active account
Similar to Speed Dial but it will dial based on the current active account. For example, if the phone is offhook and account 2 is active, it will call the configured Speed Dial number using account 2.
Dial DTMF
Enter a series of DTMF digits in the Value field to be dialed during the call. "Enable MPK Sending DTMF" has to be set to "Yes" first.
Voice Mail
Select Account and enter the Voice Mail access number in the Value field.
Call Return
The last answered calls can be dialed out by using Call Return. The Value field should be left blank. Also, this option is not binding to the account and the call will be returned based on the account with the last answered call.
Transfer
Select Account, and enter the number in the Value field to be transferred (blind transfer) during the call.
Call Park
Select Account, and enter the call park extension in the Value field to park/pick up the call.
Intercom
Select Account, and enter the extension number in the Value field to do the intercom.
LDAP Search
This option is to narrow the LDAP search scope. Enter the LDAP search base in the Name field. It could be the same or different from the Base in LDAP configuration under Advanced Settings. The Base
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in LDAP configuration will be used if the Name field is left blank. Enter the LDAP Name/Number filter in the Value field. LDAP search does not support entering Non-ASCII characters
Multi Purpose Keys X (For GXP2120/GXP2110/GXP2100 only)
Assigns a function to the corresponding Multi Purpose Key. The key mode options are: Speed Dial
Select the Account to dial from. And enter the Speed Dial number in the Value field to be dialed.
BLF (Busy Lamp Field)
This option has to be supported on the PBX and it indicates the status of the extension. The three possible states are idle (green), busy (red), ringing (blinking red).
Presence Watcher
This option has to be supported by a presence server and it is tied to the "Do Not Disturb" status of the phone's extension.
Eventlist BLF
This option is similar to the BLF option but in this case the PBX collects the information from the phones and sends it out in one single notify message. PBX server has to support this feature.
Speed Dial via active account
Similar to Speed Dial but it will dial based on the current active account. For example, if the phone is offhook and account 2 is active, it will call the configured Speed Dial number using account 2.
Dial DTMF
Enter a series of DTMF digits in the Value field to be dialed during the call. "Enable MPK Sending DTMF" has to be set to "Yes" first.
Voice Mail
Select Account and enter the Voice Mail access number in the Value field.
Call Return
The last answered calls can be dialed out by using Call Return. The Value field should be left blank. Also, this option is not binding to the account and the call will be returned based on the account with the last answered call.
Transfer
Select Account, and enter the number in the Value field to be transferred (blind transfer) during the call.
Call Park
Select Account, and enter the call park extension in the Value field to
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park/pick up the call.
Intercom
Select Account, and enter the extension number in the Value field to do the intercom.
LDAP Search
This option is to narrow the LDAP search scope. Enter the LDAP search base in the Name field. It could be the same or different from the Base in LDAP configuration under Advanced Settings. The Base in LDAP configuration will be used if the Name field is left blank. Enter the LDAP Name/Number filter in the Value field.

NETWORK PAGE DEFINITIONS

Network -> Basic Settings
Internet Protocol
Selects Prefer IPv4 or Prefer IPv6.
IPv4 Address Type
Allows users to configure the appropriate network settings on the phone to obtain IPv4 address. Users could select "DHCP", "Static IP" or "PPPoE". By default, it is set to "DHCP".
DHCP Host name (Option 12)
Specifies the name of the client. This field is optional but may be required by some Internet Service Providers.
DHCP Vendor Class ID (Option 60)
Used by clients and servers to exchange vendor class ID. PPPoE Account ID
Enter the PPPoE account ID.
PPPoE Password
Enter the PPPoE Password.
PPPoE Service Name
Enter the PPPoE Service Name.
IPv4 Address
Enter the IP address when static IP is used.
Subnet Mask
Enter the Subnet Mask when static IP is used for IPv4.
Gateway
Enter the Default Gateway when static IP is used for IPv4.
DNS Server 1
Enter the DNS Server 1 when static IP is used for IPv4.
DNS Server 2
Enter the DNS Server 2 when static IP is used for IPv4.
Preferred DNS Server
Enter the Preferred DNS Server for IPv4.
IPv6 Address Type
Allows users to configure the appropriate network settings on the phone to obtain IPv6 address. Users could select "Auto-configured" or "Statically configured" for the IPv6 address type.
Static IPv6 Address
Enter the static IPv6 address when Full Static is used in "Statically configured" IPv6 address type.
IPv6 Prefix Length
Enter the IPv6 prefix length when Full Static is used in "Statically configured"
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IPv6 address type.
IPv6 Prefix
Enter the IPv6 Prefix (64 bits) when Prefix Static is used in "Statically configured" IPv6 address type.
DNS Server 1
Enter the DNS Server 1 for IPv6.
DNS Server 2
Enter the DNS Server 2 for IPv6.
Preferred DNS server
Enter the Preferred DNS Server for IPv6.
Network -> Advanced Settings
802.1X mode
Allows the user to enable/disable 802.1X mode on the phone. The default value is disabled. To enable 802.1X mode, this field should be set to EAP-MD5.
802.1X Identity
Enter the Identity for the 802.1X mode.
MD5 Password
Enter the MD5 Password for the 802.1X mode.
802.1X CA Certificate
Upload 802.1X CA certificate to the phone; or delete existed 802.1X CA certificate from the phone.
802.1X Client Certificate
Upload 802.1X Client certificate to the phone; or delete existed 802.1X Client certificate from the phone.
HTTP Proxy
Specifies the HTTP proxy URL for the phone to send packets to. The proxy server will act as an intermediary to route the packets to the destination.
HTTPS Proxy
Specifies the HTTPS proxy URL for the phone to send packets to. The proxy server will act as an intermediary to route the packets to the destination.
Layer 3 QoS
Defines the Layer 3 QoS parameter. This value is used for IP Precedence, Diff-Serv or MPLS. The default value is 12.
Layer 2 QoS
802.1Q/VLAN Tag
Assigns the VLAN Tag of the Layer 2 QoS packets. The default value is 0.
Layer 2 QoS 802.1p Priority Value
Assigns the priority value of the Layer2 QoS packets. The default value is 0.
PC Port Mode
Configures the PC port mode. When set to "Mirrored", the traffic in the LAN port will go through PC port as well and packets can be captured by connecting a PC to the PC port. The default setting is "Enable".
PC Port VLAN Tag
Assigns the VLAN Tag of the PC port.
PC Port Priority Value
Assigns the priority value of the PC port.
Enable LLDP
Control the LLDP(Link Layer Discovery Protocol) service.

MAINTENANCE PAGE DEFINITIONS

Maintenance -> Web Access
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Disable Telnet
Disables Telnet access. The default setting is "No".
End User Password
Allows the administrator to set the password for user-level web GUI access. This field is case sensitive with a maximum length of 30 characters.
Confirm Password
Confirms the end user password field to be the same as above.
Admin Password
Allows users to change the admin password. The password field is purposely hidden for security purpose. This field is case sensitive with a maximum length of 30 characters.
Confirm Password
Confirms the admin password field to be the same as above.
Maintenance -> Upgrade and Provisioning
Firmware Upgrade and Provisioning
Specifies how firmware upgrading and provisioning request to be sent: Always Check for New Firmware, Check New Firmware only when F/W pre/suffix changes, Always Skip the Firmware Check.
XML Config File Password
The password for encrypting the XML configuration file using OpenSSL. This is required for the phone to decrypt the encrypted XML configuration file.
HTTP/HTTPS User Name
The user name for the HTTP/HTTPS server. When HTTP/HTTPS server challenges for provisioning/upgrading request, phone will present prompt to input user name and password.
HTTP/HTTPS Password
The password for the HTTP/HTTPS server. When HTTP/HTTPS server challenges for provisioning/upgrading request, phone will present prompt to input user name and password.
Upgrade Via
Allows users to choose the firmware upgrade method: TFTP, HTTP or HTTPS.
Always Authenticate Before Challenge
Only applies to HTTP/HTTPS. If enabled, the phone will send credentials before being challenged by the server.
Firmware Server Path
Defines the server path for the firmware server. It could be different from the configuration server for provisioning.
Config Server Path
Defines the server path for provisioning. It could be different from the firmware server for upgrading.
Firmware File Prefix
This field enables user to store different versions of firmware files in one single directory on the firmware server. If configured, only the firmware file with the matching prefix will be downloaded.
Firmware File Postfix
This field enables user to store different versions of firmware files in one single directory on the firmware server. If configured, only the firmware file with the matching postfix will be downloaded.
Config File Prefix
This field enables user to store different configuration files in one single directory on the configuration server. If configured, only the configuration file with the matching prefix will be downloaded.
Config File Postfix
This field enables user to store different configuration files in one single directory on the configuration server. If configured, only the configuration file with the matching postfix will be downloaded.
Allow DHCP Option 43 and Option 66 Override Server
Default setting is “Yes”. DHCP option 66 originally was only designed for TFTP server. Later on it was extended to support an HTTP URL. GXP phones support both TFTP and HTTP server via option 66. Users can also use DHCP option 43 vendor specific option to do this. DHCP option 43 approach has priorities. When this option enabled, the phone will also allow DHCP option 160 to override HTTP server path. When option 160 and option 66 are both supported on DHCP server, the phone will treat option 160 with higher priority.
Allow DHCP Option 120 to override SIP Server
Enables DHCP Option 120 from local server to override the SIP Server on the phone. The default setting is "No".
3CX Auto Provision
Phone will multicast SUBSCRIBE for provision if this feature is enabled.
Automatic Upgrade
Enables automatic upgrade and provisioning. The default setting is "No".
Hour of the Day (0-23)
Defines the hour of the day to check the HTTP/TFTP server for firmware upgrades or configuration files changes. The default value is 1.
Day of the Week (0-6)
Defines the day of the week to check HTTP/TFTP server for firmware upgrades or configuration files changes. The default value is 1.
Disable SIP NOTIFY Authentication
Device will not challenge NOTIFY with 401 when set o Yes. Authenticate Conf File
Authenticates configuration file before acceptance. The default setting is "No".
Maintenance -> Syslog
Syslog Server
The URL or IP address of the syslog server for the phone to send syslog to.
Syslog Level
Selects the level of logging for syslog. The default setting is "None". There are 4 levels: DEBUG, INFO, WARNING AND ERROR. Syslog messages are sent based on the following events:
product model/version on boot up (INFO level); NAT related info (INFO level); sent or received SIP message (DEBUG level); SIP message summary (INFO level); inbound and outbound calls (INFO level); registration status change (INFO level); negotiated codec (INFO level); ethernet link up (INFO level); SLIC chip exception (WARNING and ERROR levels); memory exception (ERROR level).
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Send SIP Log
Configures whether the SIP log will be included in the syslog messages or not. The default setting is "No".
Auto Recover From Abnormal
Configures whether auto recover or not when the phone is running abnormal. The default setting is "Yes".
Maintenance -> Language
Display Language
Selects display language on the phone.
Language File Postfix
Specifies the language file postfix for downloaded language.
Maintenance -> TR-069
Enable TR-069
Enables TR-069. The default setting is "No".
ACS URL
URL for TR-069 Auto Configuration Servers (ACS).
TR-069 Username
ACS username for TR-069.
TR-069 Password
ACS password for TR-069.
Periodic Inform Enable
Enables periodic inform. If set to "Yes", device will send inform packets to the ACS. The default setting is "No".
Periodic Inform Interval
Sets up the periodic inform interval to send the inform packets to the ACS.
Connection Request Username
The user name for the ACS to connect to the phone.
Connection Request Password
The password for the ACS to connect to the phone. Connection Request Port
The port for the ACS to connect to the phone.
CPE SSL Certificate
The Cert File for the phone to connect to the ACS via SSL.
CPE SSL Private Key
The Cert Key for the phone to connect to the ACS via SSL.
Maintenance -> Security
Configuration via Keypad Menu
Configures the access control for the users to configure from keypad Menu. There are three different options:
Unrestricted. All the options can be accessed in keypad Menu. Basic settings only. The CONFIG option will not be available in LCD
Menu.
Constraint Mode. CONFIG, FACTORY FUNCTIONS and NETWORK
options will not be available in LCD menu.
Enable STAR key Keypad locking
If set to "Yes", the keypad can be locked by pressing and holding the STAR * key for about 4 seconds. A lock icon will show indicating the keypad is locked. The default setting is "Yes".
Note:
When the keypad is locked, users would need press and hold the STAR * key
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for about 4 seconds and then enter the password to unlock it. If the Star Key Lock is enabled without specifying password, user can press and hold the STAR * key for 4 seconds and press OK to unlock the phone.
Password to lock/unlock
Configures the password to lock/unlock the keypad. The password field allows number with up to 32 characters.
SIP TLS Certificate
SSL Certificate used for SIP TLS Transport.
SIP TLS Private Key
SSL Private key used for SIP TLS Transport.
SIP TLS Private Key Password
SSL Private key password used for SIP TLS Transport.
Download Device Configuration
Click to download the device configuration file in .txt format.
Web Access Mode
Sets the protocol for web interface as HTTP or HTTPS. Default setting is HTTP.
Disable SSH
Disable SSH access. SSH is enabled by default.

PHONEBOOK PAGE DEFINITIONS

Phonebook -> Contacts
Add Contact
Specify Contact’s First Name, Last Name, Phone Number, Accounts and
Groups to add one new contact in phonebook.
Phonebook -> Phonebook Management
Enable Phonebook XML Download
Configures to enable phonebook XML download. Users could select HTTP/HTTPS/TFTP to download the phonebook file. The default setting is "Disabled".
Phonebook XML Server Path
Configures the server path to download the phonebook XML. This field could be IP address or URL, with up to 256 characters.
Phonebook Download Interval
Configures the phonebook download interval (in minutes). If it's set to 0, the automatic download will be disabled. The default value is 0. The valid range is 5 to 720 minutes.
Remove Manually-edited Entries on Download
If set to "Yes", when XML phonebook is downloaded, the entries added manually will be automatically removed. The default setting is "Yes".
Sort Phonebook by.
Sort the phonebook on the selection of first name or last name.
Download XML Phonebook
Click on "Download" to download the XML phonebook file to local PC. Upload XML Phonebook
Click on "Upload" to upload local XML phonebook file to the phone.
Phonebook Key Function
Control the behavior of phonebook key. There are four options: Default, LDAP Search, Local Phonebook, Local Group.
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Phonebook -> LDAP
Server Address
Configures the IP address or DNS name of the LDAP server.
Port
Configures the LDAP server port.
Base
Configures the LDAP search base. This is the location in the directory where the search is requested to begin. Example: dc=grandstream, dc=com ou=Boston, dc=grandstream, dc=com
User Name
Configures the bind "Username" for querying LDAP servers. Some LDAP servers allow anonymous binds in which case the setting can be left blank.
Password
Configures the bind "Password" for querying LDAP servers. The field can be left blank if the LDAP server allows anonymous binds.
LDAP Number Filter
Configures the filter used for number lookups. Examples: (|(telephoneNumber=%)(Mobile=%) returns all records which has the "telephoneNumber" or "Mobile" field starting with the entered prefix;
(&(telephoneNumber=%) (cn=*)) returns all the records with the "telephoneNumber" field starting with the entered prefix and "cn" field set.
LDAP Name Filter
Configures the filter used for name lookups. Examples: (|(cn=%)(sn=%)) returns all records which has the "cn" or "sn" field starting with the entered prefix;
(!(sn=%)) returns all the records which do not have the "sn" field starting with the entered prefix;
(&(cn=%) (telephoneNumber=*)) returns all the records with the "cn" field starting with the entered prefix and "telephoneNumber" field set.
LDAP Version
Selects the protocol version for the phone to send the bind requests. The default setting is "Version 3".
LDAP Name Attributes
Specify the "name" attributes of each record which are returned in the LDAP search result. This field allows the users to configure multiple space separated name attributes. Example: gn cn sn description
LDAP Number Attributes
Specifies the "number" attributes of each record which are returned in the
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LDAP search result. This field allows the users to configure multiple space separated number attributes. Example: telephoneNumber telephoneNumber Mobile
LDAP Display Name
Configures the entry information to be shown on phone's LCD. Up to 3 fields can be displayed. Example: %cn %sn %telephoneNumber
Max. Hits
Specifies the maximum number of results to be returned by the LDAP server. If set to 0, server will return all search results. The default setting is 50.
Search Timeout
Specifies the interval (in seconds) for the server to process the request and client waits for server to return. The default setting is 30 seconds.
Sort Results
Specifies whether the searching result is sorted or not. The default setting is "No".
LDAP Lookup
Configures to enable LDAP number searching when dialing and receiving calls.
Lookup Display Name
Configures the display name when LDAP looks up the name for incoming call or outgoing call. This field must be a subset of the LDAP Name Attributes. Example: gn cn sn description

NAT SETTINGS

If the devices are kept within a private network behind a firewall, we recommend using STUN Server. The following settings are useful in the STUN Server scenario:
STUN Server
Under Settings->General Settings, enter a STUN Server IP (or FQDN) that you may have, or look up a free public STUN Server on the internet and enter it on this field. If using Public IP, keep this field blank.
Use Random Ports
It is under Settings->General Settings. This setting depends on your network settings. When set to "Yes", it will force random generation of both the local SIP and RTP ports. This is usually necessary when multiple GXPs are behind the same NAT. If using a Public IP address, set this parameter to "No".
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NAT Traversal
It is under Accounts X->Network Settings. Default setting is "No". Enable the device to use NAT traversal when it is behind firewall on a private network. Select Keep-Alive, Auto, STUN (with STUN server path configured too) or other option according to the network setting.

WEATHER UPDATE

To customize GXP2120/GXP2110/GXP2100/GXP14xx to display weather information for the preferred city, users could go to web GUI->Settings->Web Service page and enter the city code in the following options:
By default the City Code is set to "Automatic", which allows the phone to obtain weather information based on the IP location detected. To use "Self-Defined City Code" option, please follow the steps below to obtain the correct city code:
In a web browser, go to www.weather.com; Enter the city name in the search field. For example, Boston, MA. And click on "SEARCH"; The searching result will show in a new window with URL in the browser's address bar. For example,
http://www.weather.com/weather/right-now/Boston+MA+USMA0046
In the above link, USMA0046 is the city code to be filled in "Self-Defined City Code" option.
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Users could then further configure the "Update Interval" and "Degree Unit" for weather information display.

MULTICAST PAGING

GXP21xx/14xx supports multicast paging, including sending and listening. On the phone, users could send multicast page by setting the multicast address and port. Also, users can listen to at most 10 different multicast IP address.
Send Multicast Paging
Multicast sender related settings are under Web UI, Settings -> Programmable keys. Select Multicast paging as the key mode for dial page call. Multicast paging listening related settings are under Web UI
Settings -> Multicast Paging. Sender multicast page configurations are under phones Web UI Settings->Programmable Keys->Line Keys OR Multi-Purpose Keys.
1. Set the key Mode to Multicast Paging in dropdown list.
2. Enter the multicast paging description in Description field.
3. Enter multicast paging address and port in Value field.
The range of multicast page address is 224.0.0.0 to 239.255.255.255 with a port not in use by phone.
The Figure 6 and Figure 7 show the example of setting Line Keys/MPK to multicast page sending key.
Figure 6 Sending Multicast Page Configuration by using Line Keys
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Figure 7 Sending Multicast Page Configuration by using MPK
GXP21xx/GXP14xx supports 5 codecs for Multicast Paging. User can specify the multicast page sending codec under Web UI Settings ->Multicast Paging->Multicast Paging Codec. The supported codecs are PCMU, G.729A/B, PCMA, G.726-32, G.723, iLBC and G.722.
After configuring the sender multicast page, users could make a multicast page to remote parties.
1. Press the configured MPK or Line Key to send a multicast page. The LED light of the key will turn green and the phone screen will show the multicast address with defined label.
2. Press the “EndCall” soft key to end the multicast paging.
Receive Multicast Paging
To receive multicast page, GXP21xx/GXP14xx must be well configured to listen to the right address and port. The configurations are under Settings->Multicast Paging. There are 10 listening address supported with priority levels 1 to 10. Optionally, each of these addresses can also have a label that will display on LCD when the page is received.
Note: The multicast page configuration requires rebooting to take effect.
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Figure 3 Multicast Paging
Paging Barge
This option is to control the priorities between multicast page and common SIP call. Available options are Disabled and numbers 1 to 10. If the option is set to disabled then all incoming pages are ignored while in call.
When the option is set to number, Paging Barge is enabled. If the number of Paging Barge is higher than
an incoming page’s priority value (determined by the position in the list 1-10) then the incoming page is not
played. Similarly, if the Paging Barge value is lower than an incoming page’s priority value, and then the
active SIP call will be held.
As an example, in Figure 8, the Paging Barge is configured as 3. During an active call if incoming multicast page priority is greater or equal to 3, the current active call will be held, and page will be played. However, if the incoming multicast page priority is 1 or 2, the current active call will be kept.
Paging Priority Active
This option is to control the priorities among different multicast pages. If the option is disabled, the phone ignores any incoming pages when a page is already being played. Otherwise, incoming pages with a higher priority will be played instead of the current page. For example, if the phone is playing a page whose priority is 5 and there is an incoming page with priority 3, the priority 5 page will stop and the priority 3 page will play instead.
After multicast page listening well configured, please reboot the phone to let the settings take effect. When there is a page on the listening address and port, the phone will play the incoming audio automatically.
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User can press “EndCall” softkey to end the page.

PUBLIC MODE

The GXP2120/GXP2110/GXP2100/GXP14xx supports hot desking using public mode. Under public mode, users could login the phone with the SIP account User ID and password. Please follow the steps below to configure the phone for public mode:
Fill up the SIP server address for account 1 first; Under Web GUI->Settings->General Settings, set "Public Mode" option to "Yes". Click "Save and
Apply" and reboot the phone;
When the phone boots up, SIP User ID and Password to register to the configured SIP server in
account 1 will be required. Enter the correct account information to log in to the phone. When entering the account information, press softkey "123"/"abc" to toggle input method;
In login page, pressing CONF button on the phone will show phone's IP address; After using the phone, go to LCD MENU->LogOut to log off the public mode.

EDITING CONTACTS AND CLICK-TO-DIAL

From GXP2120/GXP2110/GXP2100/GXP14xx Web GUI, users could view contacts, edit contacts, or dial
out with Click-to-Dial feature on the top of the Web GUI. In the following figure, the Contact page shows all the added contacts (manually or downloaded via XML phonebook). Here users could add new
contact, edit selected contact, or dial the contact/number.
Before using the Click-To-Dial feature, make sure the option "Click-To-Dial Feature" under web GUI->Settings->Call Features is turned on. By default it's disabled and the dialing icon in web GUI is in
grey .
When clicking on the icon on the top menu of the Web GUI, a new dialing window will show for you to enter the number. Once Dial is clicked, the phone will go off hook and dial out the number from selected
account. Please see Figure 4 and Figure 5 in the following pages for more details.
Additionally, users could directly send the command for the phone to dial out by specifying the following URL in PC's web browser, or in the field as required in other call modules.
http://ip_address/cgi-bin/api-make_call?phonenumber=1234&account=0&password=admin/123
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In the above link, replace the fields with
Add contacts.
Edit contact.
Click to call this contact from the phone.
Click to dial from available lines.
ip_address:
Phone's IP Address.
phonenumber=1234:
The number for the phone to dial out
account=0:
The account index for the phone to make call. The index is 0 for account 1, 1 for account 2, 2 for account 3, and etc.
password=admin/123:
The admin login password or user login password of phone's Web GUI.
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Figure 8: Web GUI - Phonebook->Contacts
Figure 9: Click-to-Dial

SAVING THE CONFIGURATION CHANGES

After users makes changes to the configuration, press the "Save" button will save but not apply the changes until the "Apply" button on the top of web GUI page is clicked. Or, users could directly press "Save and Apply" button. We recommend rebooting or powering cycle the phone after applying all the changes.

REBOOTING FROM REMOTE LOCATIONS

Press the "Reboot" button on the top right corner of the web GUI page to reboot the phone remotely. The web browser will then display a reboot message. Wait for about 1 minute to log in again.
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UPGRADING AND PROVISIONING

The GXP2120/GXP2110/GXP2100/GXP14xx can be upgraded via TFTP/HTTP/HTTPS by configuring the URL/IP Address for the TFTP/HTTP/HTTPS server and selecting a download method. Configure a valid URL for TFTP or HTTP/HTTPS; the server name can be FQDN or IP address.
Examples of valid URLs:
firmware.grandstream.com fw.ipvideotalk.com/gs
There are two ways to setup a software upgrade server: The LCD Keypad Menu or the Web Configuration Interface.

UPGRADE VIA KEYPAD MENU

Follow the steps below to configure the upgrade server path via phone's keypad menu:
Press MENU button and navigate using Up/Down arrow to select Config; In the Config options, select Upgrade; Enter the firmware server path and select upgrade method. The server path could be in IP address
format or FQDN format;
Press the "OK" softkey. A reboot message window will be prompt; Reboot the phone to have the change take effect.
When upgrading starts, the screen will show upgrading progress. When done you will see the phone restarts again. Please do not interrupt or power cycle the phone when the upgrading process is on.

UPGRAGE VIA WEB GUI

Open a web browser on PC and enter the IP address of the phone. Then, login with the administrator username and password. Go to Maintenance->Upgrade and Provisioning page, enter the IP address or the FQDN for the upgrade server in "Firmware Server Path" field and choose to upgrade via TFTP or HTTP/HTTPS. Update the change by clicking the "Save and Apply" button. Then "Reboot" or power cycle the phone to update the new firmware.
When upgrading starts, the screen will show upgrading progress. When done you will see the phone restart again. Please do not interrupt or power cycle the phone when the upgrading process is on.
Firmware upgrading takes around 60 seconds in a controlled LAN or 5-10 minutes over the Internet. We recommend completing firmware upgrades in a controlled LAN environment whenever possible.

NO LOCAL TFTP/HTTP SERVERS

For users that would like to use remote upgrading without a local TFTP/HTTP server, Grandstream offers a
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NAT-friendly HTTP server. This enables users to download the latest software upgrades for their phone via this server. Please refer to the webpage:
http://www.grandstream.com/support/firmware
Alternatively, users can download a free TFTP or HTTP server and conduct a local firmware upgrade. A free windows version TFTP server is available for download from :
http://www.solarwinds.com/products/freetools/free_tftp_server.aspx http://tftpd32.jounin.net/.
Instructions for local firmware upgrade via TFTP:
1. Unzip the firmware files and put all of them in the root directory of the TFTP server;
2. Connect the PC running the TFTP server and the phone to the same LAN segment;
3. Launch the TFTP server and go to the File menu->Configure->Security to change the TFTP server's default setting from "Receive Only" to "Transmit Only" for the firmware upgrade;
4. Start the TFTP server and configure the TFTP server in the phone’s web configuration interface;
5. Configure the Firmware Server Path to the IP address of the PC;
6. Update the changes and reboot the phone.
End users can also choose to download a free HTTP server from http://httpd.apache.org/ or use Microsoft IIS web server.

CONFIGURATION FILE DOWNLOAD

Grandstream SIP Devices can be configured via the Web Interface as well as via a Configuration File (binary or XML) through TFTP or HTTP/HTTPS. The "Config Server Path" is the TFTP or HTTP/HTTPS server path for the configuration file. It needs to be set to a valid URL, either in FQDN or IP address format. The "Config Server Path" can be the same or different from the "Firmware Server Path".
A configuration parameter is associated with each particular field in the web configuration page. A parameter consists of a Capital letter P and 2 to 3 (Could be extended to 4 in the future) digit numeric numbers. i.e., P2 is associated with the "Admin Password" in the Web GUI->Maintenance->Web/Telnet Access page. For a detailed parameter list, please refer to the corresponding firmware release configuration template.
When GXP2120/GXP2110/GXP2100/GXP14xx boots up, it will send TFTP or HTTP/HTTPS requests to download configuration files, “cfg000b82xxxxxx” and“cfg000b82xxxxxx.xml”, where “000b82xxxxxx” is the MAC address of the phone. If the download of “cfgxxxxxxxxxxxx.xml” is not successful, phone will issue request for a generic configuration file “cfg.xml”. Configuration file name should be in lower case letters.
For more details on XML provisioning, please refer to:
http://www.grandstream.com/general/gs_provisioning_guide_public.pdf
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RESTORE FACTORY DEFAULT SETTINGS

Warning:
Restoring the Factory Default Settings will delete all configuration information on the phone. Please backup or print all the settings before you restore to the factory default settings. Grandstream is not responsible for restoring lost parameters and cannot connect your device to your VoIP service provider.
Please follow the instructions below to reset the phone:
Press MENU button to bring up the keypad configuration menu; Select "Config" and enter; Select "Factory Reset"; A warning window will pop out to make sure a reset is requested and confirmed; Press the "OK" softkey to confirm and the phone will reboot. To cancel the Reset, press Cancel
softkey instead.
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EXPERIENCING THE GXP2120/GXP2110/GXP2100/GXP14xx

Please visit our website: http://www.grandstream.com to receive the most up- to-date updates on firmware releases, additional features, FAQs, documentation and news on new products.
We encourage you to browse our product related documentation, FAQs and User and Developer Forum for answers to your general questions. If you have purchased our products through a Grandstream Certified Partner or Reseller, please contact them directly for immediate support.
Our technical support staff is trained and ready to answer all of your questions. Contact a technical support member or submit a trouble ticket online to receive in-depth support.
Thank you again for purchasing Grandstream IP phone, it will be sure to bring convenience and color to both your business and personal life.
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