Action URL with forwarded Calls

[AndreasS]

Hi there,

has anybody figured out, which variable I can use, to get the Caller Number when answering a call for a group or a forwarded call?
We've setup a group at our Provider, where the Call rings at several phones the same time.
So I see in the display, the Call is for L0: Group and below the caller number, with # suffix.
Now when I answer the call, I still got the same information.
To identify customers, I want to send the remote caller id with an action url to our server, but all I get is either sip: or the Group Name.

Any suggestions, how to get the Caller ID?

Regards

Andi