you can use BlackBerry Curve 8900 call forwarding conditional  (CFC) funtion to forward incoming calls to another phone number if you cannot answer them. To set up conditional call forwarding on t-mobile BlackBerry Curve 8900, you can follow these steps: from BlackBerry Curve 8900 Home screen, press the Menu key > Scroll to and select the Call Log icon > Press the Menu key >  Select Options >  select Call Forwarding >  select Forward Unanswered Calls select one of the following options: >

* If Busy
* If No Reply
* If Not Reachable

then you can  select  the voicemail server number (+18056377249 ). or set up another number, press the Menu key and select one of the following: * New Number > enter the new number > Press the trackball> Press the Escape key >  select Forward Unanswered Calls >  select one of the following: If Busy, If No Reply, or If Not Reachable, and then press the trackball >  select the number you just added >  Edit Numbers > select the number you wish to edit>  select Edit>  Enter the number, and then press the trackball > Press the Escape key >  select Forward Unanswered Calls >  select one of the following: If Busy, If No Reply, or If Not Reachable, and then press the trackball >  select the number you just edited > . Press the Menu key >  Select Save.

Tags: BlackBerry Curve 8900, call forwarding conditional