Override Call Forward

Unanswered Question
Sep 25th, 2007

Is there a way to override a call forward all, for example if someone has a DN forwarded to them, they receive a call to that DN, they know that the person is at the desk, and they want to push to call back to them or let them know they are on forward.

The feature gets asked for a lot in RFPs, and as far as I can see, the only way to bypass the CfwdAll is walk round to the phone (if you don't have access to the web interface) and undivert it.


  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (1 ratings)
Rob Huffman Tue, 09/25/2007 - 07:58

Hi Tim,

This feature, which is called "CFA Destination Override" is available in CCM 5.X and CCM 6.x. Have a look;

Cisco Unified CallManager provides a service parameter (CFA Destination Override) that allows the administrator to override Call Forward All (CFA) when the target of the CFA calls the initiator of the CFA, so the CFA target can reach the initiator for important calls. In other words, when the user to whom calls are being forwarded (the target) calls the user whose calls are being forwarded (the initiator), the phone of the initiator rings instead of call forwarding back to the target. The override works whether the CFA target phone number is internal or external.

When the CFA Destination Override service parameter is set to False (the default value), no override occurs. Ensure the service parameter is set to True for CFA override to work. See Service Parameters Configuration in the Cisco Unified CallManager Administration Guide, Release 5.0(4), for information about configuring service parameters.


Note CFA override only takes place if the CFA destination matches the calling party and the CFA Destination Override service parameter is set to True. If the service parameter is set to True and the calling party does not match the CFA destination, CFA override does not take place, and the CFA remains in effect.

From this CCM 5.1.(1) doc;


Hope this helps!


tbanks Tue, 09/25/2007 - 08:11

Excellent Rob, many thanks, that's what I was looking for

Rob Huffman Tue, 09/25/2007 - 08:25

Hi Tim,

You are most welcome! This is a feature that many users of Legacy PBX's get quite used to so it is nice to be able to now provide this service :)

Take care,



This Discussion