Please read this guide carefully before
operating your new Wireless handset.
Retain the guide for future reference.
GDC-500H Wireless Handset
User Guide
Regulatory and Safety Notices
1. Radio Frequency Emissions:
FCC Compliance statement:
This device complies with Part 15 rules. Operation is subject to the following two conditions;
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause
undesired operation.
This Equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment into an outlet on a different circuit from that to which the receiver is
connected.
If problems persist, consult the dealer or an experienced radio/TV technician for help.
Canadian Compliance statement:
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
This device complies with Class B limits of Industry Canada. Operation is subject to the following two
conditions;
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause
undesired operation.
European Union Declarations of Conformity:
Ericsson-LG Co., Ltd. declares that the equipment specified in this document, which bears the “CE”
mark, conforms to the European Union Radio and Telecommunications Terminal Equipment
Directive (R&TTE 1999/5/EC) including,
Electromagnetic Compatibility Directive (89/336/EEC) and
Low Voltage Directive (73/23/EEC)
The product fulfills the essential requirements of the harmonized standards shown above.
2. Product Safety Instructions
This product complies with and conforms to the following international Product Safety standards as
applicable:
Safety of Information Technology Equipment, IEC 6095-1, including
Relevant national deviations as listed in Compliance with IEC for Electrical Equipment (IECEE)
Safety of Information Technology Equipment, CAN/CSA-C22.2 No. 60950-1/UL 60950-1
3. E-911 and use of the GDC-500H with Multi-Line Telephone Systems:
Please note the use and operation of this phone as part of a multi-line telephone system (MLTS) may
be subject to state and/or federal E-911 MLTS laws that require the MLTS to provide a caller’s
telephone number, extension, and physical location to applicable state and/or local emergency
services when a caller initiates a 911 call. The MLTS may not provide a caller’s telephone number,
extension, or physical location information to emergency services when a caller dials 911, and
compliance with state and/or federal E-911 MLTS laws is the sole responsibility of the purchaser of
this phone.
4. Privacy:
GDC-500H implements security and encryption technologies appropriate for DECT however, privacy
of communications may not be ensured when using this telephone.
GDC-500H Wireless Handset
User Guide
Important Care & Precautions:
Before connecting or using your new phone, take a moment to consider safety and reliability.
Use common sense when locating, connecting and using your GDC-500H.
• The GDC-500H uses 3.7 VDC Li-ion batteries. Replace batteries only with identical
size and type available from your local Ericsson-LG dealer. U se o f a differ ent battery
type may cause damage to the phone or charger and may cause fire or explosion.
Dispose of batteries in accordance with any local codes or regulation.
• The Charger/base unit should only be used on a dry level surface. Keep the
Charger/base away from the edges of the surface to avoid the potential of a fall.
• Avoid situations where you might drop the handset. While the GDC-500H is a rugged
mobile device, dropping it on to the floor may cause critica l da mag e.
• Locate cables to avoid potential for damage. For example, do not place under rugs or
carpet as damage may result from foot traffic or heavy objects. Also, do not locate
cables between the desktop and walls where they may be crushed, damaging the
insulation.
• Check cables regularly, and if damage is noted, disconnect your phone. Contact your
local representative for a replacement.
• Should liquid spill on the handset, remove the batteries and dry with a soft cloth.
• Do not use during lightning storms. Lightning presents a potential shock hazard.
• Clean the GDC-500H with a soft dry cloth; do not use liquid cleaners.
• Always use caution when connecting to AC power. Use only with a properly grounded
This material is copyrighted by Ericsson-LG Co., Ltd. (Ericsson-LG). Any unauthorized reproductions, use or
disclosure of this material, or any part thereof, is strictly prohibited and is a violation of Copyright Laws.
Ericsson-LG reserves the right to make changes in specifications at any time without notice. The information
furnished by Ericsson-LG in this material is believed to be accurate and reliable, but is not warranted to be true
in all cases. If you are not the intended recipient, you should destroy or retrieve this material to Ericsson-LG.
iPECS is trademark of Ericsson-LG Co., Ltd.
All other brand and product names are trademarks or registered trademarks of their respective companies.
8 Dial pad Character Charts ..................................................... 51
9 GDC-500H User Menu ............................................................ 53
iii
GDC-500H Wireless Handset
User Guide
1. Introduction
Thank you for selecting the Ericsson-LG GDC-500H Wireless handse t. With our GDC-500H
you will experience great in-building mobility with access to all of the many features and
functions of your Ericsson-LG communication system. This guide is intended to provide you
with detailed information on the use of your new Ericsson-LG Wireless DECT handse t .
GDC-500H is a wireless handset that employs DECT technology to provide local in-building
mobility. Wireless Radio Frequencies (RF) signals are exchanged between the handset and
base stations (GDC-400B / 600B/GDC-600BE). Multiple base stations connect to the
Wireless Management Interface (WMI) in your Ericsson-LG phone system. The WMI links
the connected base stations forming a larger Base or Zone. Within this zone, transparent
handover of active communications between base stations in the zone is supported.
1.1 Description
1.1.1 Handset
The GDC-500H, shown in the Handset Diagram, appears much like a mobile cell phone. On
the front are the dial pad, a number of control buttons (d escr i bed i n the Handset Buttons and
Features list) and a large LCD display. In the lower rear of the unit is the battery
compartment. The battery charging terminals are located at the bottom of the unit. On the
right side of the GDC-500H is the headset jack.
Handset Diagram
1
GDC-500H Wireless Handset
Number
Button
Description
Navigation button:
OK Button – Same as the Left soft button
Left & Right soft button: Interactive menu displayed directly
Talk button: Connects handset to host system to answer
incoming or place outgoi ng call s.
Recall (Flash)/Clear button: active call state=register recall,
press and hold 1 second to delete all digits.
/Silent Alert button: idle and dial state=press to dial ‘*’,
active internal call=camp-on from host.
Call back button: Leave a call back or reca ll messa g e
End call & Power button: Press to end a call or reject a call,
press and hold 1 second to turn power ON & OFF.
8
0~9
Dial Pad buttons
#/Lock button: idle and dial state=press for ‘#’, press and
Speed/Program button: Host dial tone=press to access
host program mode.
Side button : Adjust the Ringer volume and Audio volume.
Emergency button : Immediately call the designation number
in emergency situations.
User Guide
Handset Buttons and Features
Left arrow – idle state=view missed call, other states=left
navigation
Right arrow – Idle state=place call (host intercom dial tone),
1
2
active call state=press to Transfer call , or press and hold 1
second to place call on hold, in User Menu=right navigation.
Up and Down arrows – Idle state=Up for Local redial , Down
for Phonebook menu, active call state=adjust audio volume,
in User Menu=up and down navigation.
above buttons. Selection varies as needed. To select, press
the soft button directl y below item.
3
4
5
6
7
9
10
11
flash to regain dial tone; idle state=press to clear single digit
*
press and hold 1 second to turn Silent Alert ON and OFF;
hold 1 second to lock dial pad.
Station or System Speed dial, press and hold 1 second for
12
2
GDC-500H Wireless Handset
User Guide
GDC-500H (rear view)
If an Ear Microphone/Headset is attached to a GDC-500H, it can receive or release a call. It
is recommended to use a Headset meeting JIS C-6560 Specification. Press the button on
the Ear Microphone/Headset to receive an incoming call when ringing, and do the same
action to release the call. Making a call by using the Ear Microphone/Headset is supported,
too; press the button once on the Ear Microphone/Headset when in the idle state, then select
a number to dial from the redial list and the make the call by pressing the button.
Note:
Using a noise canceling or unidirectional Ear Microphone/Headset, with an impedance below
1 KΩ (usually is 1-2.2KΩ) may cause abnorm al oper ati on (uni t may se lf-answer without
pressing the button when an incoming call is received, and unit may hang-up unex pectedly
while using the Ear Microphone/Headset).
Warning
1) Do not insert any external substance except ear-microphone for GDC-500H in
the hole. Inserting anything except for ear-microphone provided by general
maker may cause severe damage to the terminal.
2) Be careful not to let any foreign materials get into the product. In particular, if a
staple and pins are magnetized on the receiver, make sure to eliminate it before
use. Using it in such condition may cause fire, electric shock, or injury
especially on the face.
3
GDC-500H Wireless Handset
Icon
Name & Description
Antenna Icon ( ) & RSSI Icon ()
signal to process signals and calls can not be placed or received.
Phone icon
established.
External - Internal Call icon
Indicates the call type, external (EXT) or internal (INT) the host system.
Silent Alert icon
in the User Menu section.
Message icon
intervals.
Keypad lock icon
accidental is buttons press as may happen with a wireless handset.
Alarm clock icon
Indicates an Appointment is set.
User Guide
1.1.2 GDC-500H Display
The GDC-500H has a large 176 x 220 pixel full-color TFT LCD (Liqu id Crystal Display). The
display indicates the status of the handset and provides visual feedback for dialing and other
actions. Various icons, detailed in the chart below, are shown at the top of the disp lay. The
central area of the display shows messages from the host Ericsson-LG system and the
phone itself. At the bottom are selections for the Left and Right soft buttons.
GDC-500H Icons
The antenna icon indicates a DECT connection is established with the
Base station.
The RSSI (Received Signal Strength Indicator) is a meter of the RF signal
strength received by the handset. The number of vertical bars (0 ~ 4)
indicates the relative strength. At less then 2 bars, call quality may not be
acceptable. When no vertical bars are present there is insufficient RF
Indicates the handset is off-hook, talking or dialing and a DECT channel is
Indicates the ringer in the phone is Off. The phone will visual notify you of
incoming calls and may alert you with the vibrator. See Images & Sounds
Indicates the system has at least one new message or callback message
for the wireless terminal. The message information is updated at 3 minute
Indicates the phone dial pad and buttons are inactive. This prevents
4
GDC-500H Wireless Handset
Icon
Name & Description
Bluetooth icon
wireless headset. Using a headset permits you to move freely around
phone and maintain a conver sati on.
Bluetooth headset icon
f the paring is
successful.
Speakerphone icon
Additionally, you can switch between the handset and Speakerphone
during a call.
Message
Description
Display Duration
STA xxxx
Station number
Idle state
CALL FROM
STA xxxx
Station number of calling internal
user.
STA xxxx
user
HOLDING
STA xxxx
LN XXX
RINGING
LN XXX
CO line number in host system
Active external call
NO CHANNEL
No RF or system channel available
Until a channel is available
INVALID
Station dialed is not valid
About 30 seconds
NO ANSWER
STA XXX
NO RESP.
STA XXX
Called station is not responding,
perhaps power is Off
Message
Description
Display Duration
Out-of-range of a base stati on or not yet
range between the handset and Base station.
No Channel
No available RF Channel in Base station
All RF channels busy
silent alert mode
User Guide
Battery icon
Vertical lines indicate battery charge state. At one (1) bar charging is
recommended, and call quality may be affected. When low battery (1 bar),
backlight will turn off to save battery power.
The last Icon means the battery is charging.
CALL TO
The Bluetooth is available if activation is Yes. So it allows you to use a
Before using the headset, the headset must be paired with GDC-500H
handset. The Bluetooth headset icon is displayed i
Speakerphone can be activated by pressing Hook off button during a call.
Common System and Handset Messages
System Messages
Alerting and active internal call
Station number of called internal
Alerting and active internal call
Station number of waiting call. Call on hold or transferring
CO line number in host system Alerting
Called user does not answer About 30 seconds
About 30 seconds
Handset Messages
subscribed to a system. Phone will not function.
Range Out
Walls, buildings, and other obstruction, especially
large metal surfaces negatively impact useable
Silent Mode
5
Alert mode is vibrate, no audible ring is provide in
Out-of-range or not
subscribed
Silent alert mode
GDC-500H Wireless Handset
Message
Description
Display Duration
Direct call
Handset is in a Direct call (Hotline)
Active on direct call
Keypad
Locked
The handset dial pad is locked; no outgoing calls
can be made.
Until handset is
unlocked
0~9, *, #, P,
D, R
Dialed digits and special characters.
Dialing
User Guide
(P -:Pause, D -:Go to DTMF, R -:Flash)
1.1.3 Charger/base Unit
The Charger/base unit (p/n GDC-450SSC) is used to charg e the GDC-500H handset and to
house the handset when not in use. Terminals in the charger mate to terminals in the
bottom of the handset to allow the batteries to charge. Fully charged batteries provide about
19 hours of talk-time or about 130 hours of standby-time. To fully charge “dead” batt er i es
requires about 6 hours in the Charger.
6
GDC-500H Wireless Handset
User Guide
2 Getting Started
Before you can begin to use your new GDC-500H you must unpack the unit, install the
batteries, charge the unit and register the item for service to your telephone system. This
section provides you the information needed to complete these steps.
2.1 Unpacking the GDC-500H
Each GDC-500H package contains the items below. These items include the GDC-500H
handset, Charger/base, AC/DC adapter, Li-ion batteries, this User Guide and a belt cli p.
Unpack the carton and assure all items are available.
Handset Charger/Base AC/DC Ad a p t e r
GDC-500H GDC-450SSC
Batteries Quick Guide Belt Clip
Ear-Microphone
7
GDC-500H Wireless Handset
Mode
Duration
Charging Time
Talk Mode
19 hours
Standby Mode
130 hours
User Guide
2.2 Installing the batteries
The batteries are installed in the battery cavity in the rear of the unit. To install the batteries,
1. Remove the battery cover located on the rear of the unit. Press the latch at the top of
the cover and slide the cover down to remove.
2. Insert batteries. Assure the battery polarity matches the polarity in the battery cavity.
3. Place the cover on the unit just below the cavity and push the cover upward until the
latch is engaged.
4. The unit must be placed in the charger for approximately 6 hours to fully charge the
batteries.
Full charge 9 hours
Note:
Poor care of batteries limits their useful operating life. Keep phone in the Charger/base
when not in use.
At low battery levels (less than 1 battery power bar), the display backlight turns OFF to
maximize battery charge.
Use only with batteries provided for the GDC-500H. Use of other types of
batteries may cause harm to the unit or explosion.
Dispose of used batteries in accordance with local codes and regulations.
8
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