Call forwarding question

Unanswered Question
Feb 13th, 2008

When a call is transfered(forwarded) on a Cisco gateway, can I change the callerid of the original call to that of the phone that did the transfer/forwarded? The gateway is SIP based.

I have this problem too.
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sadbulali Tue, 02/19/2008 - 08:21

The IP phone that requests the CFwdAll operation must select a destination dialed number (DN) that is contained in a Calling Search Space (CSS) or a partition that this phone has rights to call. For example, if the IP phone is not allowed to place calls to the Public Switched Telephone Network (PSTN), then any attempts to set the phone to forward calls to an outside number fail.

It is possible to set the line to a different CSS than the one the phone uses in order to further restrict or allow call forwarding destinations. Refer to Configuring External CFA Extension on IP Phone When Doing Overlap Sending for an example of this configuration.


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