I have 7.4.9c firmware
When I do the call forward button and set it to a number the screen displays calls forwarded
When I call my line I get a message in my syslog server
calling:<forwarded to number>@<proxy>:0
I do not see any sip messaging back at my switch. I get the same results if I use an extension, on switch number, or cell phone
When I do a call forward of my 7960 the call goes to the correct number.
Did you add the steering digit in the call forward field?
i.e. 9 for outside line steering digit must be appended to the number to be call forwarded to.
The 7960 might append this automatically.
I put in the number exactly as I would dial it from the phone so 17143388807
Once I hit the last digit the phone goes to Calls Forwarded on the screen
Then inbound call to the phone should generate a refer message to the call forwarded number.
Can you obtain a wireshark showing the call flow?