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.
Preset code is 1234.
 Warning: If you 
change the lock code, 
be sure to record your 
new code in the inside 
back cover page.
If you forget the lock 
code, you will have to 
send the phone to an 
authorized service 
center to restore the 
phone to the default 
lock code. The lock 
code cannot be 
restored by a call to 
customer service.Shortcut to turn on Lock Phone, 
1.From standby, press and hold .
2.Scroll to Lock Phone, press 
 (Enable).
3.Enter the 4-digit lock code, press 
 (Ok).
OR
In Options & Timers Menu  ...
1.Scroll to Security, press 
.
2.Press  (Lock Phone).
3.Scroll to desired option, press 
.
On/OffPress 
 (On/Off). Scroll to On (phone lock 
on) or Off (phone lock off), press . Enter 
4-digit lock code, press  . (Enter 1234 if you 
have never changed the lock code.)
If you set the phone lock to On, the phone 
locks and the lock icon ( ) displays. Enter 
the 4-digit lock code and press  to use 
phone.
Change CodeEnter 4-digit lock code, press  . (Enter 
1234 if you have never changed the lock 
code.) Enter new 4-digit lock code, press  . 
Enter new code again, press  . 
						

							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 
to restrict calls to a list 
of permitted phone 
numbers.
For example, if lending 
your phone to one of 
your children, you may 
want to restrict their 
dialing to your home 
and office numbers.
SIM card dependent. 
Requires PIN2 code.In Options & Timers Menu  ...
1.Scroll to Security, press 
.
2.Scroll to Dial Only PhBook, press .
3.Scroll to Enable or Disable, press .
4.Enter PIN2, press .
 First, set this feature to Enable, then store numbers that 
will be permitted to be dialed. They will be stored in the 
phonebook.
 When Dial Only PhBook is enabled, any manually 
dialed phone number must match a stored phone 
number in the permitted list. 
 When enabled, phone numbers can be added, edited or 
deleted as normal, but you will be prompted for PIN2.
Enable/
DisableScroll to Enable (PIN/PIN2 protection on) or Disable 
(no PIN/PIN2 protection), press  . Enter 4- to 8-
digit PIN/PIN2, press  .
If you set Enable, enter PIN/PIN2 and press  
every time you turn on phone.
Change 
CodeEnter PIN/PIN2, press  . Enter new 4- to 8-digit 
PIN/PIN2, press  . Enter new PIN/PIN2 again, 
press .
Note: If PIN or PIN2 is entered incorrectly 3 times, the phone 
locks. Contact your wireless service provider for a PUK or PUK2 
(personal unblock key) code. The PUK unblocks a disabled PIN 
code, and the PUK2 unblocks a disabled PIN2 code. If the PUK 
or PUK2 code is entered incorrectly 10 times, the phone will not 
operate. All information stored in the SIM card is lost and the SIM 
card must be replaced. 
						

							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 phone 
outside of your home 
area (roaming).1.Scroll to Network, press 
.
2.Press  (Network Search).
3.Scroll to desired network to use, press 
.
Note: An “X” displays if you cannot register with the 
selected network.
Note: Roaming charges may apply.
Search ModeIn Options & Timers Menu  ...
Set phone to 
automatically search for 
networks when roaming 
or set phone so you can 
manually select a 
network when roaming.1.Scroll to Network, press 
.
2.Scroll to Search Mode, press .
3.Scroll to Automatic or Manual, press .
Note: If you select Manual, you will have to manually 
select a network. See “Network Search” on page 89. 
						

							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 turn on, once to 
turn off.
When on, any accessory that is connected through 
the 2.5 mm Headset/TTY connector is expected and 
assumed to be a TTY device.
TTY mode must be enabled to send and receive 
TTY calls.
When making a TTY call, plug in the TTY device 
before making a call.
To answer a TTY call, you may answer the call with 
or without the device plugged in and then plug in if 
not already connected.
If TTY is enabled, the TTY icon 
 is indicated at 
the top of the display. 
						

							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 Entry
Entering/Editing Text, Characters, and Numbers
When ready to enter information (flashing cursor):
1.The current input mode appears at lower left of the display. Press   repeatedly 
to scroll through the input modes; T9, Abc, 0-9, ΑΒΓ, AÄÅ; (not character list).
OR
Press  (Menu), scroll to desired text entry method, press   (Select):
2.Enter text, characters or numbers.
See the following table for details about what each key press will enter.
Flashing cursor indicates where next letter/character/number will be entered.
Standard Text EntryTegic Language Entry 
(or, T9® Text/Quick Entry)
To enter a letter, press a number key one to 
seven times until corresponding letter on the 
key displays.To enter a letter, press the corresponding 
number key once. As you enter a word, the 
phone displays the most likely word match for 
your entry. If the correct word does not display, 
press   repeatedly to scroll through an 
alternate word list.
Enter English alphabet (ABC), Greek 
characters (ΑΒΓ), or international characters 
(AÄÅ).Enter words included in the phone’s dictionary. 
(Note: You can add words to the dictionary).
Recommended for entering proper names or 
words not commonly found in a dictionary.Recommended for commonly-used words.
Char. ListScroll/move to select desired letter, number or character. Press  .
Input ModeScroll/move to select desired text entry method: T9, Abc, 0-9, ΑΒΓ, AÄÅ. 
Press . 
						

							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 hold any numeric key to enter the character menu 
(Char. List), except while in T9 or 0-9 mode.
Press repeatedly to switch among text entry modes as needed.
Press briefly to delete previous letter/character/number. Press and hold 
to erase the entire entry. (Note: Usually, pressing this key cancels the 
current screen. However, in text mode, to cancel the current screen, 
press  (Menu), scroll to Cancel, and press   (Select).
KeyText Mode:
T9/T9®Normal (ABC) Greek (ΑΒΓ) Extended (AÄÅ) Numeric (0 - 9)
Alternatives +_ +_ +_ 0+P_
Punctuation
Press 1 key, 
then 0 key.@:;*#+”,!¡?¿
_()[]{}’&%\^~|
=
€£$¥¤§.@:;*#+”,!¡?¿
_()[]{}’&%\^~|
=
€£$¥¤§.@:;*#+”,!¡?¿_()[]{}’&
%\^~|=
€£$¥¤§1
ABCabc ABCabc ABΓAÄÅÆBCÇaäåæàbc 2
DEFdef DEFdef∆ΕΖDEÉÈFdeéèf 3
GHIghi GHIghiΗΘΙGHIghiì 4
JKLjkl JKLjklΚΛΜJKLjkl 5
MNOmno MNOmnoΝΞΟMNÑOÖØmnñoöøò 6
PQRSpqrs PQRSpqrsΠΡΣPQRSpqrsß 7
TUVtuv TUVtuvΤΥΦTUÜVtuüùv 8
WXYZwxyz WXYZwxyzΧΨΩWXYZwxyz 9
Shift/Lock* Shift/Lock* Shift/Lock* *
Space Space Space Space # 
						

							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 correctly 
connected to the phone
Extremely short battery life for 
a new batteryThe network you are using 
and the condition of the 
battery can affect battery life
Short battery life for an old 
batteryThe battery has worn outReplace with a new fully 
charged battery
The charging indicator does 
not light, the battery level 
indicator does not appear and 
the phone cannot be switched 
on when chargingThe battery is not attached to 
the phone or when the battery 
has been deeply discharged 
the phone will take a short 
time until the indicator lightsLeave the phone charging the 
battery for a few minutes 
before the indicator is lit and 
attempting to switch it on
Battery fails to chargeThe battery is not attached to 
the phone
Ensure the battery is fitted to 
the phone prior to 
commencing charging. Battery has been connected to 
the phone after the Rapid 
Charger has been turned on 
						

							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 the Fixed Dial is 
switched on
Check the phone number is 
stored in the Fixed Dial
Calls cannot be receivedThe phone is not switched on Switch the phone on
Incoming calls are barredDisable the incoming call 
barring
The phone is not registered to 
a networkMove to a coverage area and 
operate your phone after it has 
registered with a network
Emergency calls cannot be 
madeYou are not in a GSM 
coverage areaCheck that the antenna 
symbol   is displayed - move 
to a coverage area and 
operate your phone when the 
antenna symbol is displayed
Phone numbers cannot be 
recalled from PhonebookThe phone is locked Unlock the phone
Phone number has been 
restrictedSwitch off restriction
Error Message Meaning
Area Not Allowed Roaming in the selected area is not allowed
Auto Redial List FullRedial list of unsuccessfully dialed numbers is full - switch the 
phone off and then on again
Attempt Failed...Please Try 
AgainThe phone experienced a failure connecting to the network 
when attempting to place an emergency (911) call.  Problem Cause Possible Solution 
						

							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 
placing emergency calls only. Press   or   to go back to 
the standby screen. When you re-enter the AT&T coverage 
area, your phone can receive calls even though Emergency 
Calls Only message may still appear on the display.
Function UnavailableThe selected feature is either not supported by the SIM card or 
is not available with the current subscription - contact your 
wireless service provider
Incorrect Lock CodeDisabling or enabling the lock code has failed due to incorrect 
entry of the lock code - re-enter lock code
Incorrect PIN / PIN2 / PUK / 
PUK2The entered code is incorrect - re-enter code correctly
Message Rejected Store FullA message has been received but the message store is full - to 
receive messages, delete some of the currently stored 
messages or set messages to Auto Delete
Network Not Allowed Roaming with the selected network is not allowed
Phone Number Too Long 
(Max:20)The edited or newly created Phonebook number is too long for 
the SIM card
PIN2 InvalidatedThe PIN2 is blocked permanently because the wrong PUK2 
has been entered ten times, services controlled by PIN2 
cannot be used - contact your wireless service provider
Security FailureThe network has detected an authentication failure because 
your SIM card is not registered with that network - contact your 
wireless service provider
SIM Blocked / Contact Service 
providerThe SIM is blocked because one of the PIN/PIN2 unblocking 
keys (PUK/PUK2) has been entered incorrectly ten times - 
contact your wireless service provider
SIM ErrorThe phone has detected a problem with the SIM card- switch 
the phone off and then back on; if the message is still displayed 
contact your wireless service provider
SIM InvalidThe SIM card has failed one or more of the SIM card 
personalization checks - contact your wireless service provider Error Message Meaning 
						

							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