Motorola GSM L2 - Manual (Page 46)

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To save battery life, the display can turn off when you’re not
using your phone. The display turns back on when you press
a key. To set how long your phone waits before the display
turns off:
Press - > Settings > Initial Setup > Display Timeout.
answer options
You can use additional, alternative methods to answer an
incoming call. To activate or deactivate an answer option:
Find it: Press - > Settings > In-Call Setup > Answer Options > Multi-key
> On or Off