When somebody calls you on either 0118909xxxx or direct on Communicator would you like your Mobile to ring as well..?
You have two choices to make this happen:
When someone calls you through Communicator the Incoming Call Toast will appear offering you a choice of whether you accept the incoming call or divert to either VoiceMail or Mobile. You can create custom numbers too, so if you work from home you can forward to your regular BT line.
For your mobile to simultaneously ring automatically, you can configure Communicator to do so by the following: