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You can make a call without sending your own number (caller identification). Follow these instructions to turn your own caller identification on or off.
Find "Caller ID"
Press the Menu key.
Press Call settings.
Press Caller ID.
Turn your own caller identification on or off
Press Hide number or Send number.
Please note: you can only hide your caller identification for voice calls. When you send text messages, your phone number is always displayed.
Press Disconnect to return to standby mode.