EchoLife ET655 User Manual

EchoLife ET655 IP Phone

User Manual

HUAWEI TECHNOLOGIES CO., LTD.

EchoLife ET655 IP Phone

V100R001C01LENT02

User Manual

Issue

01

Date

2012-02-08

Huawei Technologies Co., Ltd. provides customers with comprehensive
technical support and service. Please feel free to contact our local office or
company headquarters.

Huawei Technologies Co., Ltd.

Address:

Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China

Phone:

4008302118

Website:

http://www.huawei.com

Email:

[e-mail].

Copyright © Huawei Technologies Co., Ltd. 2011. All
rights reserved.

No part of this document may be reproduced or transmitted in any form or
by any means without prior written consent of Huawei Technologies Co.,
Ltd.

Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei

Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the

property of their respective holders.

Notice

The information in this document is subject to change without notice. Every
effort has been made in the preparation of this document to ensure
accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute the warranty of any
kind, express or implied.

EchoLife ET655 IP Phone User Manual

Contents

i

Contents

1 Safety Precautions ......................................................................................2

2 Product Overview .......................................................................................5

Packing List ............................................................................................................... 5

Features ...................................................................................................................... 6

Hardware specifications............................................................................................ 7

Technical specifications............................................................................................ 8

3 Installing the ET655 .................................................................................10

Cable Connections of the ET655 ........................................................................... 10

Starting the ET655 .................................................................................................. 11

Safety Compliance .................................................................................................. 11

Warranty of Quality ................................................................................................ 12

4 Configuring the ET655 ............................................................................13

Configuring the Phone Through the Keypad ........................................................ 13

Configuring the Phone Through Web Browser..................................................... 16

Accessing the Web Configuration Menu ..................................................... 16

Configuration Page ................................................................................................. 17

Saving the Configuration Changes............................................................... 22

Rebooting the ET655 Remotely ................................................................... 22

5 Using the ET655 .......................................................................................23

Getting to Know the Keyboard .............................................................................. 23

Instructions of Using the Phone ............................................................................. 24

EchoLife ET655 IP Phone User Manual

Contents

ii

Handset, Speakerphone, and Headset Modes .............................................. 24

Multiple SIP Accounts and Lines................................................................. 25

Making a Call ................................................................................................ 25

Answering a Call ........................................................................................... 27

Do-Not-Disturb ............................................................................................. 27

Call Waiting/Call Holding ............................................................................ 27

Muting ............................................................................................................ 27

Call Transfer .................................................................................................. 27

Three-Way Conference Call ......................................................................... 29

Voice Messages ............................................................................................. 29

Manager and Secretary Function.................................................................. 30

BLF Function................................................................................................. 30

6 Restoring Factory Default Settings .........................................................32

7 FAQs ..........................................................................................................33

EchoLife ET655 IP Phone User Manual

1 Safety Precautions

1

EchoLife ET655 IP Phone

User Manual

Thank you for purchasing the EchoLife ET655 IP Phone (the ET655 for short).
ET655 is an high-quality IP phone.

EchoLife ET655 IP Phone User Manual

1 Safety Precautions

2

1 Safety Precautions

General Requirements:



Before you install and use the device, read these safety precautions carefully and
observe them during operation.



During storage, transportation, and operation of the device, keep the device dry.



During storage, transportation, and operation of the device, avoid collision and
crash of the device.



Never attempt to dismantle the device by yourself. In case of any fault, contact the
appointed maintenance center for repair.



Without prior written consent, no organization or individual is permitted to make
any change to the structure or safety design of the device. Huawei Technologies Co.,
Ltd. is not liable to any consequences or legal issues due to such changes.



While using the device, observe all applicable laws, directives and regulations, and
respect the legal rights of other people.

Environmental Requirements:



Place the device at a well-ventilated place. Do not dispose the device to direct
sunlight.



Keep the device clean and free of dusts.



Place the device on a stable platform.



Do not place any object on top of the device. Otherwise, the device may be too hot
during operation. It can even be deformed or damaged by the heavy load.



Keep at least 10 cm between the device and the closest object for heat dissipation.



Do not place the device on or near any object that can easily catch fire, such as
something made of rubber.



Keep the device far away from any heat source or bare fire, such as a candle or an
electric heater.



Keep the device far away from any household appliance with strong magnetic field
or electromagnetic field, such as a microwave oven or a refrigerator.

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1 Safety Precautions

3

Operating Requirements:



Do not let a child operate the device without guidance.



Do not let a child play with the device or any accessory. Swallowing the accessories
may lead to peril.



Use the accessories provided or authorized by the manufacturer only.



The power supply of the device shall meet the requirements of the input voltage of
the device. Use the provided lightning protection power socket only.



Before plugging or unplugging any cable, shut down the device and disconnect it
from the power supply.



While plugging or unplugging any cable, make sure that your hands are completely
dry.



Do not tread on, pull, or over-bend any cable. Otherwise, the cable may be damaged,
leading to malfunction of the device.



Do not use an old or a damaged power cable.



During lightning weather, stop using the device and disconnect it from the power
supply. Unplug the power plug and the ADSL（Asymmetric Digital Subscriber
Line） twisted pair (the radio frequency cable) to avoid lightning strike.



If the device is not used for a long time, disconnect it from the power supply and
unplug the power plug.



Do not look directly into the optical interface and the laser-transmitting interface on
the device, or the infrared transmitting interface on the remote control with your
eyes. Otherwise, your eyes may be injured.



In any of the following cases, stop using the device, disconnect it from the power
supply, and unplug the power plug immediately: there is smoke emitted from the
device, or there is some abnormal noise or smell. Contact the specified maintenance
center for repair.



Avoid any object (such as metal shavings) from entering the device from the heat
dissipation intakes.



Before connecting any other cable, connect the grounding cable of the device first.
Do not disconnect the grounding cable until you disconnect all other cables.



Make sure that the three-phase power socket is grounded reliably. The neutral line
and the live line shall not be connected inversely.



Do not scratch or abrade the shell of the device. This may lead to malfunctions of
the device. The shed painting material may also lead to skin allergy.

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1 Safety Precautions

4

Cleaning Requirements:



Before cleaning the device, stop using it and disconnect it from the power supply.



Use a piece of soft dry cloth to clean the device.



Keep the power plug clean and dry. Using a dirty or wet power plug may lead to
electric shock or other perils.

EchoLife ET655 IP Phone User Manual

2 Product Overview

5

2 Product Overview

Packing List

The following items are included in the ET655 package. Verify the packing items.
Contact your distributor immediately if any one is missing.

Table 2-1 Packing items

Item

Quantity

Main case

1

Handset

1

Coiled handset cord

1

Specialized power adapter

1

Straight-through cable

1

Phone Stand

2

Wall-mount bracket

2

ET655 Quick Start

1

CD

1

Warranty card

1

PVC card

2

Paper card

5

Certificate of quality

1

EchoLife ET655 IP Phone User Manual

2 Product Overview

6

Product Picture

Product Overview

The ET655 is a next-generation
enterprise IP phone. The ET655
provides rich functions, is easy to
use, and supports integrated PoE
and HD Voice.

Features

Table 2-2 Key features of the ET655

Feature

Description

Open standard compatibility

SIP 2.0, TCP/IP/UDP, RTP/RTC, HTTP/HTTPS,
ARP/RARP, ICMP, DNS (A record and SRV
record), DHCP, PPPoE, TFTP, NTP and Telnet.

High audio quality

Adopting the advanced DSP technology.

Traditional features

Standard voice features including caller ID display,
call waiting, call holding, call transferring, call
forwarding, call blocking, call rejecting, mute,
autodial, and off-hook autodial.

Advanced functions

Supporting the following functions:

 Multi-lines
 Headset enabled
 Backlit graphic LCD
 Five navigation keys
 Function keys such as call holding, headset

mode, call forward, three-party conference, do
not disturb, address book, voice message box,
and mute

 Eighteen multi-purpose keys

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Feature

Description

Advanced features

 Customized ring tones
 Download of ring tones
 Download of address book in xml format and

screensaver files

 SRTP voice call encrypted with the Advanced

Encryption Standard (AES)

 Setting of dialing rule and advance business

functions, such as BLF, and BroadSoft SCA

 For details of advanced features, see the

ET635&ET655&ET685 Administrator Guide.

Hardware specifications

Table 2-3 Hardware specifications

Item

Specification

Ethernet ports

Providing two Ethernet ports of 10/100 Mbit/s and
full/half duplex

Ethernet polarity can be automatically detected.

Graphic LCD display

Pixel: 240x120

Headset interface

RJ-9 headset jack

LED

LED indicators that can be on in two colors (green
and red)

PoE

The build-in automatic detector obtains the PoE
that is based on the IEEE 802.3af standard.

Universal switching

Input: 100–240 V AC 50 Hz or 60 Hz

Power adapter

Output: +5 V DC, 1200 mA, UL certified

Dimension (W × H × D)

251 mm × 210mm × 77 mm

Weight

1.08 kg

Temperature

0°C to 40°C

Humidity

10% to 90% (non-condensing)

Compliance

FCC/CE/CCC/C-Tick

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2 Product Overview

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Technical specifications

Table 2-4 Technical specifications of the ET655

Item

Specification

Lines

Four straight-through lines.

Supported protocol

Supporting the SIP 2.0, TCP/UDP/IP, HTTP, HTTPS,
PPPoE, RTP/RTCP, SRTP by SDES, HTTP, ARP/RARP,
ICMP, DNS, DHCP, NTP, TFTP, NTP/SNTP, and
SIMPLE/PRESENCE protocols

Supporting RFC3903, RFC3856, RFC3863, and RFC4235

Supporting RFC 3428
Up to 50 incoming IM messages can be stored. If more than

50 incoming IM messages are present, the system drops the
latest IM message.

Function keys

 Eleven dedicated keys: Hold, SEND, SPEAKER,

Headset Mode, TRNF (transfer), CONF (conference),
MUTE/DEL, DND, INTERCOM, Phone Book, and
MSG (message)

 Five navigation keys
 Eighteen multi-purpose keys and four XML

programmable soft keys.

Device management
Supporting the upgrade of the NAT-friendly remote

software (through TFTP or HTTP) for the devices that are
deployed behind the firewall or the NAT

Supporting the address book function

Audio features

Handset, Hands-free, and headset modes in full duplex

Advanced DSP

Dynamic negotiation of codec and voice payload length

HD Voice

Supporting the G.723.1 (6.3K or 5.3K), G.729A/B, G.711
µ/A, G.726-32K, G.722 (broadband), and iLBC CODECs

In-band and out-of-band DTMF (in audio, RFC2833, or SIP
INFO mode)

Echo Cancellation

Supporting the sidetone cancellation, advanced jitter buffer
control, and packet delay and loss concealment.

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2 Product Overview

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Item

Specification

Telephony features

Intuitive GUI, download of the phone book (XML), voice
mail indicator, download of custom ring tones

Call holding, call transferring (consultation/blind),
Do-Not-Disturb, call forwarding, call waiting, call waiting
mute, redial, call log, volume control, caller ID display,
multi-party conference call, dialing with a prefix, off-hook
autodial, automatic answer, and dialing.

Network and
provisioning

Supporting manual configuration for static network through
keyboard and LCD, or by logging in to the Web page.
Dynamic network parameters are provided by the DHCP
server.

Supporting NAT traversal by using IETF STUN and
symmetric RTP

Supporting AES-based IP phone configuration file update
Supporting unified IP phone configuration through the

BroadSoft XML Provision server

Supporting 802.1x-based network accessing authentication

Supporting the IEEE 802.1p/q tagging (VLAN) and Layer 3
ToS protocols

Software upgrade

Supporting firmware upgrade through TFTP or HTTP and
authentication of configuration files before changing

Providing the specific URL for users to download
configuration files and upgrade files

Advanced server
features

Message waiting indicator light.
Supporting DNS SRV query

Security

Supporting DIGEST authentication and encryption by using
MD5, MD5-sess, and SRTP

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3 Installing the ET655

10

3 Installing the ET655

Cable Connections of the ET655

Figure 3-1 Connecting the ET655

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3 Installing the ET655

11

Table 3-1 Description of the connectors

No.

Connector

Description

(1)

EXT port

A port used to connect an expansion board for increasing
multi-purpose keys. In this way, you can call a user by
pressing one key.

(2)

PC port

The port is the 10/100 Mbit/s RJ-45 PC port. You can
use the straight-through cable to connect the PC port.
When using the PC phone, you can configure the port.
(Optional)

(3)

LAN port

The port is the 10/100 Mbit/s RJ-45 LAN port. You need
to use the straight-through cable to connect the LAN
port to the Ethernet port.The phone supports PoE
(802.3af) power. In this case, you must connect the port
to the switch supporting PoE power.

(4)

Power port

5Vpower port. After the network cable connection is
complete, use the special power adapter of the phone to
connect the power port and power to switch on the
phone.

(5)

Headset port

RJ-9 port. If you want to use the headset for
communication, install the headset socket to the port.

(6)

Handset port

RJ-9 port. If you want to use the headset for
communication, install the headset socket to the port.

Starting the ET655

After the ET655 is powered on, a progress bar is displayed on its screen. This progress
bar disappears after the startup page is accessed.

Safety Compliance

The ET655 complies with the Federal Communications Commission (FCC),
Confermite Europeenne (CE), China Compulsory Certification (CCC), and various
safety standards. The ET655 specialized power adapter is compliant with the
Underwriter Laboratories (UL) standard. Use only the matching power adapter

provided with the package. The manufacturer’s warranty does not cover damages to the

phone caused by unsupported power adapters.

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3 Installing the ET655

12

Warranty of Quality

If you purchased the ET655 from a distributor, contact the distributor for replacement,
repair, or refund. If you purchased the product directly from Huawei, contact Huawei
sales and service representatives for a return materials authorization (RMA) number
before you return the product. Huawei reserves the right to remedy the warranty policy
without prior notification.

Use a power adapter provided by the ET655; otherwise, damages can be
caused to the products and the manufacturer warranty is void.

EchoLife ET655 IP Phone User Manual

4 Configuring the ET655

13

4 Configuring the ET655

Configuring the Phone Through the Keypad

To enter the configuration menu, press MENU. View the menu by pressing UP,
DOWN, LEFT, or RIGHT. Press MENU to confirm the selection of a menu item, and

delete an entry by pressing BackSpace. The phone automatically exits the menu when
an incoming call comes or the phone is off-hook. If no keypad operation is performed
within one minute, the IP phone automatically displays the standby image.

Table 4-1 Keypad configuration menu

Menu

Configuration Description

Call History

Displays history records of answered, dialed, missed, transfered
and forwarded calls.

Status

Displays the network status, account status, software version,
MAC address, and hardware version of the phone.

Phone Book

Displays the phone book and related option.

 [New Entry]

Add a phone book record.
After the fields such as Name, Family name, Number, and

Acct are set or selected, select Confirm Add and press
MENU to confirm the operation. Select Cancel & Return

and press MENU to cancel the added information and return
to the previous menu.

 [Download Phonebook]

Select Download Phonebook and press MENU. Then the
phone downloads the updated phone book from the TFTP or
HTTP server. This requires corresponding configuration of
the download items of the phone book on the Web page.

 [Delete All Entries]

Delete all contacts in the phone book.

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4 Configuring the ET655

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Menu

Configuration Description

Preference
Displays the preference submenus of a user.

 [Do Not Disturb]

Choose this menu to enable or disable the DND function.

 [Ring Tone]

Choose this menu to set different ring tones.

 [Ring Volume]

Press MENU to hear the selected ring volume. Press LEFT or
RIGHT to turn up or turn down the volume.

 [LCD Contrast]

Choose this menu to set the LCD screen contrast.

 [LCD Brightness]

Set the LCD brightness of the IP phone in active and idle
states. The value ranges from 0 to 8.

 [Download SCR XML]

Send a request to the HTTP/TFTP server for downloading a
screen saver to replace the original one. For details on how to
configure this service, see the ET635&ET655&ET685
Administrator Guide or contact the administrator.

 [Erase Custom SCR]

Restore the factory setting for the standby image.

 [Display Language]

Choose this menu to select the language.

 [Time Settings]

Set the date and time of the IP phone.

Press LEFT or select Back to return to the main menu.

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Menu

Configuration Description

Config
Display the configuration submenus.

 [SIP]

Set the SIP server for each account, including account, SIP
proxy, Outbound proxy, SIP user ID, SIP Auth ID, SIP
password, SIP transport, and Audio CODECs.

 [Upgrade]

Configure the firmware server and the file download server.
Select either TFTP or HTTP to upgrade the firmware or
configure the phone.

 [Factory Reset]

Type the MAC address on back of the phone. Press OK
softkey to restore the factory reset settings. Factory reset
clears all configurations and restores the phone to factory
settings.

 [Layer 2 QoS]

Configure the 802.1Q/VLAN tag and 802.1P priority.

Press LEFT or select Back to return to the main menu.

Factory
Functions

These items are used for factory testing and not recommended for
users.

 [Audio Loopback]

Speak to the handset. If you hear your voice in the handset,
your audio works well. Press MENU to exit the mode.

 [Diagnostic Mode]

All LEDs are on. Press any key on the keypad to display the
key name on the LCD. Pick up the handset or press MENU to
exit the diagnostic mode.

Press LEFT or select Back to return to the main menu.

Network

Enable or disable the DHCP protocol. Set the IP address, subnet
mask, and gateway address by using the keypad if the static IP
mode is selected.

Reboot

Reboot the device.

Exit

Exit the menu.

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4 Configuring the ET655

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Configuring the Phone Through Web Browser

The Web server embedded in the ET655 responds to the HTTP, HTTPS GET, or POST
requests. Embedded HTML pages allow a user to configure the IP phone through any
Web browser such as Microsoft Internet Explorer or Mozilla Firefox.

Accessing the Web Configuration Menu

Connect the phone and computer on a reachable network. Do as follows:
Connect the computer to the same hub or switch as the phone is connected to. In

absence of a hub/switch (or free ports on the hub/switch), connect the computer directly
to the phone by using the PC port on the phone. Make sure that the phone is powered on
and displays the IP address.

To access the Web configuration menu of the phone, do as follows:

Step 1 Start the Web browser on your computer.
Step 2 Enter the IP address of the phone in the address box of the browser. If the

phone is properly connected to a working Internet, the phone will display its
IP address. The format of the address is xxx.xxx.xxx.xxx, in which xxx stands
for a number from 0-255. You can use this number to access the Web
configuration menu. For example, if the phone displays

10.10.10.1

, enter

http:// 10.10.10.1

in the address box of the browser.

Step 3 Enter the administrator password(the default password is

admin

.) to access

the Web configuration menu.

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Figure 4-1 Login page

Configuration Page

This section describes the options of Status and Basic Settings on the Web
configuration page.

The functions available for the end user are as follows:



Status: Display the network status, account status, software version, and MAC
address of the phone.



Basic Settings: Basic preferences such as date and time settings.

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4 Configuring the ET655

18

Figure 4-2 Status page

Table 4-2 Device configuration on the Status tab page

Field

Description

MAC Address

The device ID in the hexadecimal format.
This is an important ID for service provider to solve

problems.

IP Address

The IP address of the ET655.

Part Number

The code of a product.

Product Model

The product model.

Software Version

Information about the current software version. The value
of prog indicates the main version number.

System Up Time

The power-on duration since the last reboot.

System Time

The current time of the system.

Registered

Whether accounts are registered on the related SIP
server(s).

The ET655 supports four unique SIP accounts.

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Field

Description

PPPoE Link Up

Whether the PPPoE connection is enabled when the phone
is connected to a DSL modem.

Figure 4-3 Basic setting page

Table 4-3 Description of the basic setting page

Field

Description

End User
Password

This parameter allows changing the login password of an end
user.

This field is case sensitive with a maximum length of 30
characters.

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4 Configuring the ET655

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Field

Description

IP Address

The ET655 operates in two modes:

 DHCP/PPPoE Mode:

All the field values for the static IP mode are not available
even though they are stored in the Flash memory. The
ET655 acquires its IP address from the first DHCP server
that the ET655 detects on its LAN. To use the PPPoE
feature, set the PPPoE account. The ET655 establishes a
PPPoE session if any of the PPPoE fields are set.
Host Name and Domain Name: The special DHCP options
that are added to the DHCP Discover and DHCP Request
after configuration.
Preferred DNS: The ET655 uses the DNS server if
Preferred DNS is configured

 Static IP Mode: Configure all of the following fields: IP

address, Subnet Mask, Gateway, Default Router IP
address, DNS Server 1 (primary), and DNS Server 2

(secondary). The fields are set to 0 by default except that the
IP address is set to 192.168.0.160 by default.

802.1X mode

This parameter is set to perform the 802.1X authentication
when the IP phone is connected to a switch. You can click

Disable to disable the authentication function, and click
EAP-MD5 to perform the registration authentication.

 Identify

ID used during the 802.1x authentication

 MD5 Password

MD5 password used during the 802.1X authentication

Iine Keys (1-4)

This parameter is set for specifying function modes of line keys.
By default, the value of Key Mode is Line, which is used by
common lines. If the value of Key Mode is Shared Line, it
indicates that the BroadSoft SCA functions are enabled and that
accounts scattered in various areas can share the line.

Multi-Purpose
Keys

The optional values are Speed Dial, Busy Lamp Field(BLF),

Presence Watacher, eventlist BLF, Speed Dail via active
account, and Dial DTMF.

Each key corresponds to an account, that is, a user number is set
for each key.

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Field

Description

Time Zone

This parameter controls the date and time display according to
the specified time zone. If the DHCP Option 2 is enabled, the
DHCP server overrides and centrally controls the setting of
Time Zone in the phone. The feature functions on the phone
only when you set the NTP server correctly.

LCD Backlight
Brightness

This parameter is set for adjusting the LCD brightness of the IP
phone in active and idle states. The value ranges from 0 to 8.

LCD Contrast

LCD contrast, The value ranges from 0 to 20.

Time Display
Format

The LCD time is displayed in 12-hour or 24-hour format.

Disable in-call
DTMF display

The default value is No. If the parameter is set to Yes, the
DTMF digits that are pressed during the call will not be
displayed on the LCD for security reasons.

Disable Missed
Call Backlight

The default value is No. By default, the LCD backlight is on
when a missed call exists.

HEADSET Key
Mode

Select default answering or dialing mode as the headset mode.
When selecting a default mode, press HEADSET to enter the
headset dialing status. If you press HEADSET when setting
Toggle Headset/Speaker, the headset icon is displayed on the

LCD. In this case, press , you can make a call or answer a
call in Headset mode.

Call History
Flash Writing

This parameter is set for configuring the duration of recording
data of Call History, Phone Book, and Settings on the Web
configuration page into flash memory.

 Write Timeout

Write timeout indicates that the duration of flash writing. The
range is 30-3600, in seconds. The default value is 300s.

 Max Unsaved Log

This parameter is set for adjusting the max flash writing items
during the recording duration. The range is 0-500. 0 means this
option is disabled.

Do not change the value optionally. Consult the enterprise
administrator before any change.

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Saving the Configuration Changes

After changing the settings, click Update on the bottom of the page to save the change.
If you want to change an item after submitting the setting, click a tab to access the
configuration page. Then click Reboot to reboot the phone, and all the changes take
effect.

Rebooting the ET655 Remotely

Click Reboot in the configuration menu to reboot the ET655 remotely. Wait 60 seconds
to log in again.

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5 Using the ET655

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5 Using the ET655

Getting to Know the Keyboard

Figure 5-1 Getting to know the keypad

Table 5-1 ET655 keypad

Key

Description

LINE1x

 Four line keys with dual-color LED indicator lights.

Each line key supports an independent SIP account.

 The four line keys provide the hands-free feature.

Press the key to display the phone book and associated
items.

TRANSFER

Transfer the current call to another number.

CONF

Set up a three-party conference call for the caller and callee.

MUTE

Mute the call (the other party cannot hear your voice).

DND

Enable or disable the DND function.

HEADSET

Dial or answer with the headset.

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Key

Description

HOLD

Hold the current call, and press the corresponding LINE key
to resume the call.

Press the key to enter the hands-free mode. Press it again to
exit the hands-free mode.

SEND

Press the key to send a call after you have dialed phone
numbers.

Note:
If you do not press SEND, the number will be sent after a

pre-configured time delay.

After the phone is off-hook, press the key to redial the last
dialed number.

Press the key to receive voice mails or other messages.

MENU

 Enter the keypad configuration MENU mode when the

phone is in idle mode.

 Use as MENU key to confirm the operation during

keypad configuration.

<0>–<9>,<*>, and
<#>

Standard phone pad: 10 digits, the corresponding 26
alphanumeric letters, and special characters.

Soft keys 1-4

XML soft keys, which can provide different functions, such
as BackSpace and Cancel.

Multi-Purpose Keys

Implement functions of Speed Dial, Busy Lamp Field,
Presence Watacher, and Eventlist BLF. You can also
configure other functions on the Web page.

Instructions of Using the Phone

Handset, Speakerphone, and Headset Modes

You can switch the modes among handset, speakerphone, and headset.



To switch between the handset and speakerphone modes, press SPEAKER, that is,

.



To switch between the handset and headset modes, press HEADSET.

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

To switch between the speakerphone and headset modes, press HEADSET or
SPEAKER, that is, .

Multiple SIP Accounts and Lines

The ET655 supports four independent SIP accounts. Each SIP account matches with a
SIP server, users, and NAT. Each of the four line keys matches with one SIP account. In
off-hook state, when you press the corresponding LINE key or continuously press the
same LINE key, the phone will switch among the four accounts. If the name of an
account is configured, then the name is displayed on the LCD.

For example, set the account name of the two SIP accounts as VoIP 1 and VoIP 2.
Ensure that each account is activated and registered. When LINE1 is pressed, you will
hear a dial tone and see "VoIP 1" on the LCD. When LINE2 is pressed, you will hear a
dial tone and see "VoIP 2" on the LCD. When LINE1 is pressed, the LCD displays

"VoIP 1." If LINE1 is pressed twice continuously（The setting of LINE1 and LINE2 are
the same）, the LCD displays "VoIP 2" and it indicates that the SIP account 2 VoIP 2 is

used.
 To make a call, select the line you wish to use. You can switch lines before dialing

any number.

 When the phone is idle, press the corresponding key to answer the incoming call

that is designated to an account.

 If the line is occupied, the LED of the next available LINE key blinks to remind

you of an incoming call. This feature should be supported by the SIP server.

Making a Call

Dialing

You can use headset and handset or press to make a phone call.
Step 1 Pick up the handset; or press , or enable the headset. Or press a

LINE

x

key to activate the speakerphone. The corresponding LED is on.

Step 2 Hear a dial tone. The LED light of the first line (LINE1) LED is on. You can

also select another SIP account by pressing the corresponding LINE key.

Step 3 Enter the phone number and press

SEND or Dial

soft key.

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You can press the LINEx key again to switch the four accounts between
each other. For example, press the LINE1 key to use the account1, press

the LINE1 key again to change it to the account2（The setting of LINE1
and LINE2 are the same）. When the account 2 cannot be registered,
pressing the LINE 2 key will make the account1 in use by default.

Redialing

You can press SEND or the Redial soft key to redial the last dialed phone number. For
the redialed number, the phone will use the same SIP account for dialing the last phone
number.

Dialing Through the Call History

Call a phone number from the phone’s call history. When you dial a call from the
history, the phone uses the same SIP account that is used for this call last time.

Step 1 Press

MENU

to access the main menu.

Step 2 Select

Call History

and press

MENU

to confirm.

Step 3 Select

Answered Calls, Dialed Calls, Missed Calls,Transferred Calls or

Forwarded Calls

depending on your requirements and press

MENU

to

confirm.

Step 4 Select a phone number by using arrow keys and press

Dial

soft key to dial the

number.

Dialing Through the Phone Book

You can call a number through the phone book.
Each entry in the phone book can be assigned with an individual SIP account. The

phone uses the SIP account to make a phone call.
Step 1 Access the phone book by:

 Pressing DOWN.
 Pressing .

 Pressing MENU. Then select Phone book and press MENU.

Step 2 Select a phone number by using arrow keys and press

MENU

to confirm.

Step 3 Select

DIAL

and press

MENU

to dial the number.

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Answering a Call



An incoming call: The phone rings. The corresponding account LINEx blinks. Pick
up the handset, press , enable the headset, or press the blinking LINEx key to

answer the call.



Multiple incoming calls: The call waiting tone is played. The next available line
will blink in red. Answer an incoming call by pressing the LINEx key.

Do-Not-Disturb

To block all incoming calls, you can enable the Do-Not-Disturb (DND) function. The
phone will not ring when an incoming call comes.

Use either of the following methods to enable DND function:
Method 1: When the phone is in idle mode, press DND to enable the DND function and

press DND again to disable the DND function.
Method 2: Toggle the DND function as follows:

Step 1 Press

MENU

.

Step 2 Select

Preference

by pressing the arrow keys, and then press

MENU

.

Step 3 Select

Do Not Disturb

by pressing the arrow keys and press

MENU

.

Step 4 Select

Enable DND

or

Disable DND

and press

MENU

.

Call Waiting/Call Holding



Hold: Keep a call on hold by pressing HOLD.



Resume: Resume the call by pressing the corresponding LINEx key with a blinking
LED.



Multiple calls: Automatically keep an active call on hold by selecting another
available LINEx key or answering another call. If an incoming call comes when all
lines are in use, the call waiting tone (discontinuous tone) is displayed.

Muting

To enable or disable the muting function during a call, press MUTE. Then "LINEx:
MUTE" is displayed on the LCD for the muted call.

Call Transfer

The ET655 supports both blind and attended (or supervised) transfer:
Blind transfer:

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28

Step 1 Pick up the handset; press , or enable the headset by pressing

HEADSET

to establish a conversation.

Step 2 Press

TRANSFER

for a dial tone.

Step 3 Dial the number of a third party and press

SEND

to transfer the active call.

Consultation transfer:

To transfer calls by one account, the other one must be unoccupied.

Step 1 Pick up the handset; press , or enable the headset by pressing

HEADSET

to establish a conversation.

Step 2 Press another available LINE key for a dial tone.
Step 3 Dial the number of a third party and press

SEND

.

Step 4 If the call is established, press

TRANSFER

and select the previous LINE key,

the transfer is finished.

 If the call is not established, press the previous LINE key to return to the

previous conversation.

 If the call is canceled and terminated before the call of the third party is

connected, the ET655 rings, indicating that a call is held.

To transfer calls across different SIP domains, the VoIP service providers
must support this feature.

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Three-Way Conference Call

ET655 can host conference calls and support three-way conference calls.

Initiating a Conference Call

Step 1 Pick up the handset, press , or enable the headset by pressing

HEADSET

to establish a call.

Step 2 Press another available LINE key to wait for the dial tone. Dial the phone

number of the third party and press

SEND

. If the call is established, press

CONF

to initiate a three-way conference call. If the call is not established,

press

LINE

x key to resume the previous call.

Step 3 Press the previous LINE key to enable the call to join the conference.

Ending a Conference Call

Press HOLD to pause the conference call and put all parties on hold. If you want to
speak to an individual party, select the corresponding blinking LINEx key.

If the caller hangs up, the other two parties hang up automatically and the conference
ends. If either the second party or the third party hangs up, the rest two parties establish
the two-way conversation.

If both the second party and the third party hang up, the caller will hang up
automatically. In this case, the conference ends.

Voice Messages

A blinking red message waiting indicator (MWI) indicates a message is waiting. This
function takes effective only when the Subscribe for MWI field is set to Yes. The

default value is No. Press the key to retrieve the message. The interactive voice
response (IVR) system prompts the user to retrieve the message. Press a specific
LINEx to retrieve messages for a specific line account.

Each line has a separate voice mail account. Each account requires a voice
mail portal number to be configured through the Voice Mail User id field.

The ways to check voice messages are as follows:



Press to check the voice message of the primary account.



Check each line for waiting tone (discontinuous).

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Manager and Secretary Function

After a line of the manager's phone is bound to a line of the secretary's phone, all calls
to the manager will be connected to the secretary's phone at the same time. The
secretary determines whether to transfer the call to the manager.
Assume that manager A's phone has two lines. LINE 1 is bound to LINE 1 of
secretary B's phone, and LINE 2 is a private line. The following describes the
manager and secretary function's process.

For details on how to configure the manager and secretary service, see the
ET635&ET655&ET685 Administrator Guide or contact the
administrator.

Step 1 Customer C calls manager A.

The phone of secretary B rings. The LINE 1 indicator on both manager A's
phone and secretary B's phone blinks.

Step 2 Secretary B presses the

LINE1

key and answers the call.

Step 3 Secretary B presses the

SeizeLine

soft key and enters the number of the

manager A's private line to call manager A.
The call between secretary B and customer C is held.

Step 4 Manager A presses the

LINE2

key and answers the call from secretary B.

Step 5 Manager A presses the

LINE1

key and talks with customer C.

The call between manager A and secretary B is held. If secretary B hangs up,
the call ends.

Step 6 Manager A or customer C hangs up.

The call ends, and the LINE 1 indicator is off.

 ET655 allows one manager's phone to be bound to a maximum of two

secretaries' phones, and one secretary's phone to be bound to a
maximum of four managers' phones.

 If two secretaries serve a manager, only one secretary answers the call

and transfers it to the manager.

BLF Function

After the BLF function is enabled for ET655, you can press the corresponding DSS

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31

key to check the status of the monitored phone. You can press this key to directly
make a call to the specified number.

For details on how to configure the BLF service, see the
ET635&ET655&ET685 Administrator Guide or contact the administrator.

A user assigns the BLF function to a DSS key on phone A, and configures phone B as
the monitored phone. The mapping between the phone B status and the BLF key on
phone A is as follows:



When phone B is idle, the BLF key is steady green.



When phone B is ringing, the BLF key is blinking red.



When phone B is in a conversation, the BLF key is steady on.



When phone A failed to detect the phone B status, the BLF key is off.

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6 Restoring Factory Default Settings

32

6 Restoring Factory Default Settings

Restoring the factory default settings can clear all configuration information
about the ET655. Back up or print all the settings before you restore factory
default settings. Huawei is not responsible for parameter loss or failier to
connect to your VoIP service provider due to the operation of restoring the
factory default settings.

To restore the factory default settings, do as follows:
Step 1 Press

MENU

to access the keypad configuration UI menu, and select

Config

.

Press

MENU

to access submenus, and select

Factory Reset

. For details, see

Table 4-1.

Step 2 Type the MAC address that is printed on the bottom of the sticker by using the

following rules:



0–9: 0–9



A: 22 (Press the 2 key twice and A is displayed on the LCD.)



B: 222



C: 2222



D: 33 (Press the 3 key twice and D is displayed on the LCD.)



E: 333



F: 3333

For example, if the MAC address is 0018820E3956, type 00188203333956. The LCD
displays the entered MAC address 0018820E3956.

If digits are duplicate in the MAC address, for example, 22, you need to
press RIGHT to move the cursor or wait for four seconds for typing
another 2.

Step 3 Press the

OK

soft key.

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7 FAQs

33

7 FAQs

Question: What codecs are supported by the ET655?

Answer:The ET655 supports a wide range of codecs: G711 a/µ, G729, G723.1,
G726-32k, G722 (broadband), GSM, and iLBC.

Question: How many VoIP accounts are supported on the ET655?

Answer:The ET655 IP phone supports four different SIP (VoIP) accounts. These
accounts can be on the same server or different servers of different service providers.

Question: How to reject an incoming call?

Answer:Press Reject softkey when receiving an incoming call or press DND to enable
the DND function when the phone is idle. The call is rejected and forwarded to your
voice mailbox if you configure the voice mailbox.

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Shenzhen 518129

People's Republic of China

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