Panasonic Gu87 Operating Instructions

Options & Timers Menu  87
SECURITYSecurity functions can help protect your phone from 
unauthorized use. You should memorize your security 
codes. If you do need to write down any of your codes, do 
not write them where they can be viewed or recognized by 
someone else. If you ever forget your PIN or PIN2 code(s), 
contact your wireless service provider.
Note: Emergency calls can still be made even if security 
options have been set.
Lock Phone
Prohibit phone use 
except to answer calls 
or to dial 911....

88   Options & Timers Menu
PIN or PIN2In Options & Timers Menu  ...
The PIN (Personal 
Identification Number) 
protects your SIM 
against unauthorized 
use. When enabled, 
you must enter the PIN 
every time you turn on 
the phone.
PIN2 controls security 
for Dial Only PhBook 
and No SIM PhBk Dial.1.Scroll to Security, press 
.
2.Scroll to PIN or PIN2, press .
3.Scroll to desired option, press .
Dial Only PhBookDial Only PhBook is part of the Phonebook, but with added 
security.
This feature allows you...

Options & Timers Menu  89
No SIM PhBk DialIn Options & Timers Menu  ...
Prohibit manual dialing 
of pre-programmed 
phone numbers in the 
SIM Phonebook.
SIM card dependent. 
Requires PIN2 code.1.Scroll to Security, press 
.
2.Scroll to No SIM PhBk Dial, press .
3.Scroll to Enable or Disable, press .
4.Enter PIN2, press .
Note: This feature is not available on the AT&T 
Wireless Services network.
NETWORK
Network SearchIn Options & Timers Menu  ...
Manually select an 
available network when 
using your...

90   Options & Timers Menu
Network ListIn Options & Timers Menu  ...
View available 
networks.
Search Mode must be 
set to Automatic. See 
“Search Mode” on 
page 89.
SIM card dependent
.
1.Scroll to Network, press .
2.Scroll to Network List, press .
3.Scroll to view available networks.
TEXT TELEPHONY
Allows a hearing-
impaired person to use 
the phone by 
connecting a TTY 
device.To set TTY mode, in Options & Timers Menu  ...
1.Scroll to Text Telephony, press 
.
2.Scroll to On or Off, press   twice to...

Appendix A: Text Entry    91
APPENDIX A: TEXT ENTRY
Use the phone’s keypad to enter text, characters and numbers. There are multiple 
ways to enter text/characters/numbers:
Standard Text Entry (ABC entry with English, Greek and international letters)
Tegic Language Entry (also known as T9
® Text/Quick Entry for entering 
commonly-used words)
Character Entry (includes upper and lower case letters, numbers, and standard 
characters such as a period, @, slash, colon, semicolon, brackets, etc....)
Number...

92    Appendix A: Text Entry 3.When your entry is complete, press   (Menu > Ok). Scroll up or down to move through lines of text. Move left or right to 
move along a line of text.
To enter consecutive letters from the same key, pause for a second and 
the cursor automatically moves to the next space. Or, use the 
navigation key to move right or left the desired number of spaces.
Press repeatedly to switch among first letter capital, CAPS LOCK and 
all lowercase text entry modes.
 to Shortcut: Press and...

Appendix B: Specifications & Troubleshooting    93
APPENDIX B:
SPECIFICATIONS & TROUBLESHOOTING
SPECIFICATIONS
TROUBLESHOOTING
Should any problem continue, please contact your wireless service provider.
PHYSICAL CHARACTERISTICS
Dimensions3.84” x 1.93” x 0.91”
(97.5 x 49 x 23 mm)
Weight (including battery) 3.63 oz. (103g) 
Network bands GSM 900, GSM 1800, GSM 1900
Maximum RF Output 1 W
Antenna Fixed
Problem Cause Possible Solution
Phone will not turn onCheck that the battery is fully 
charged and...

94    Appendix B: Specifications & Troubleshooting
IMPORTANT ERROR MESSAGES
These are some of the most important error messages which may be displayed:
Calls cannot be madeThe phone is locked Unlock the phone
Outgoing calls are barredDisable the outgoing call 
barring, or barred dial
The phone is not registered to 
a networkMove to a coverage area and 
operate your phone after it has 
registered with a network.
Calls cannot be made from 
Fixed Dial StoreCheck your SIM card supports 
Fixed Dial
Check if...

Appendix B: Specifications & Troubleshooting    95
Call RejectedThe phone experienced one of the following conditions: 
1. Call was not able to connect to the network (no circuits 
available, no signal available or out of service area.) 
2. Battery charge level i stoo low (recharge battery).
3. Your calling plan is expired, depleted or has reached its 
preset limit.
Emergency Calls OnlyMay occur when phone is outside coverage area or in a 
coverage hole. Another carrier may be restricting access to...

96    Appendix B: Specifications & Troubleshooting
Verification FailureOn changing the phone lock code, verification of the new code 
is incorrect - retry changing the lock code with correct 
verification
Warning Store Full Continue?The message area is full. Your messages cannot be stored 
until some of the currently stored messages are deleted Error Message Meaning