Accounts.
2. Check Receive incoming calls. Checking this setting will
reduce your battery life between charges.
Other Options
1. Touch
settings > Additional settings.
2. Touch Caller ID to choose whether your number is displayed
when someone receives your outgoing call. Or check Call
waiting to get notified of incoming calls during a call.
NOTE: Please contact the service provider to check whether the
caller ID and call waiting features are available.
>
> Settings > Call settings > GSM call
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