ZTE Corporation ZTEC90 Manuale Utente

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C90 User manual 
73 
8. 
The voice or text message from the other party will be heard or displayed on the TTY 
equipment, depending on the TTY mode selected. 
Security 
The security menu allows you to lock your phone electronically.  To access the Security menu, 
select Menu→Settings→System→Security from the standby mode. 
Note: You will need to enter the phone lock code to enter this menu.  The default password for an 
inactivated phone is 1234.  Once you have activated your handset, the default lock code will 
be the last 4 digits of your phone number. 
It is also possible that the lock code has been updated by the user.  If the updated lock code is 
lost or forgotten, please contact your service provider. 
The following options are available: 
Lock Mode: Choose between Unlock, Lock and On Power Up.  In Lock mode, the phone is 
only able to receive calls or make emergency calls.  The On Power-Up setting will 
automatically lock your phone when it is powered on. 
Change Code: This menu allows you to change the phone’s lock pass code.  To change your 
code: 
1. 
Select Menu→Settings→System→Security→Change Code from the standby mode. 
2. 
When prompted, enter your old lock code. 
3. 
Input the new code (1 to 8 characters). 
4. 
Input the new code again to confirm. 
Reset Defaults: Reset the default security settings.