Capture forwarded calleerID

ttmuskie

Environment:

- B's (phone no. 9876-54321) is set to forward to the 8765-4321 (one of the truck under Asterisk)
- A (phone no. 5432-1234) is tried to call B.

Currently, Asterisk showed the caller is A. But, what I want is B's phone number. Any way to do it? Thanks.