[Asterisk-Users] Call forwarding and Caller ID

[Nick Grindley]

Hi All,

* is working very well for us now. But I have an issue that I cannot find
the answer to - enter guru's!!

When our receptionist does a blind call forward I receive the Caller ID,
however I do not know if the call is fresh (i.e. ringing in) or forwarded.

What I would like to do is to have * prefix the CID External (so that I can
tell that it is a fresh call) or Internal (to tell me that it is a blind
forward). So how do I prefix the CID with say E for external and I for
Internal?

We are using an AVM C2 ISDN card and are in the UK (if any of that helps?)

Our phones are ipDialog SipTone II

Many thanks in advance and kind regards to all.

Nick