Huawei G5500 - PIN and PUK; Locking the Keypad; 3 Voice Services; Making a Call

PIN and PUK
The personal identification number (PIN) protects your SIM
card from unauthorized use. The PIN unblocking key (PUK) can
unlock the blocked PIN. Both PIN and PUK are delivered with
the SIM card. For details, consult your service provider.
If you enter wrong PINs for a specified number of times
consecutively, the phone asks you to enter the PUK.
If you enter wrong PUKs for a specified number of times
consecutively, the SIM card is invalidated permanently. Contact
your service provider for a new one.
Locking the Keypad
In standby mode, press (Menu) and in
succession to lock the keypad. To unlock the keypad, press
(Unlock) and then in succession.
If the Auto keypad lock function is enabled and the phone is
idle for a preset period in standby mode, the keypad is locked
automatically.
When the keypad is locked, you can press
to
answer an incoming call or make emergency calls.
3 Voice Services
Making a Call
1. In standby mode, enter the phone number.
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