I have a simple two BRI setup with two telephone numbers, one ending 98, the other ending 30. I have only two telephones and I have a incoming and outgoing dialplan which says calls coming in on 98 go to one phone, and calls coming in on 30 go to the other. The same applies for outgoing calls, each phone shows their specific DDI.
My problem is when I enable call-forwarding on the phone ending 30. If I forward it to my mobile, any calls forwarded to me are forwarded showing the 98 number and not the 30 number. This is only a minor inconvenience, but it means I am unable to tell if it is a call from my colleague on 98 or a call forwarded to me, until I answer the call.
Is there a way I can change this to show the correct DDI?