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Incoming calls can be diverted to a number of your choice. You can choose which types of calls you want to divert, such as all calls, missed calls or when your phone is busy. Follow these instructions to divert calls to alternative number.
Find "Call forwarding"
Press the menu icon.
Press Call settings.
Press Call forwarding.
Select divert type
The current settings are displayed.
Press one of the following options:
Forward when busy
Forward when unanswered
Forward when unreachable
Divert calls to alternative number
Key in the required number and press Enable.
Press the Home key to return to standby mode.