A is a external telephone
B is a Cisco ip Phone
C is external telephone
we settings "no answer forward" to C on B.
when A call B,B forward the call to C. B's number is displaied on C. Now I want to show A's number on C.
My CM version is 220.127.116.1100 and it is base H.323. I can see A's number base on mgcp.