I have a user who wants to forward his phone to his cell phone. Normally this would be no problem.
Basically this is the scenario:
User A has an phone number of 555-555-1234
User A forwards his IP Phone to 555-555-1212.
When User B 555-555-9876 calls User A at 555-1234, the caller ID on User A's cell phone is displayed as 555-555-1234.
Is there anyway for this display the User B caller ID (555-9876) on User A's cell phone, rather than User A's number 555-1234?
I do not think it is possible when transferring off-net, as User A is the one technically placing the call. I am using the external phone mask on all route patterns.
Current Set up:
Call Manager 6.1.2
ISDN E1 PRI on a 3800 MGCP gateway
The provider has confirmed that Caller ID is being passed
Thanks for any help!