Ho to get the SIP HEADER of this

Hi. I’m using 2 Phones

Extensions are:

The Extension 2311 Have (callforward enable) I press the botton: (cfwd) to Exten.9999.

Call flow:

              calling to                  calling to

Ext.2310 ------------------> 2311 -------------------> Ext.9999

What I want to do:
exten=>11,n,Check if ext.2311 have cfwd enable and says to what extension.

What exactly is your problem?

If you problem is implementation of CF feature let me give you one hint - AstDB :wink:

This could be a COLP question. It is not clear and on the wrong forum.