CUCM - how can I force internal calls to pass across the gateway?

[IPOpotamus]

Hello People

I am totally new to the Cisco VoIP world, and I'm mounting a call recording solution in a CUCM 6.1.5 environment.

the call recording esentially works by sniffing the VoIP packets that flow between a call.

as you know due to resource optimization, the VoIP packets within an internal call do not pass across the gateway, but makes a peer to peer flow.

I need this time this packets pass across the gateway because i Can only sniff in the subnet where the gateway is.

pd: in the avaya world, this is configured by the parameters --suffling-- and --hairpining--

http://www.tek-tips.com/viewthread.cfm?qid=1540048

Thanks a lot

 

[whykap]

On internal calls the gateway is not involved at all. You will need to be able to capture the phone subnet traffic as well, usually by setting a span port, but that depends on the recording solution.

 

[IPOpotamus]

whykap, thanks for your answer

the method you are describing is the most logical and most used,

the thing is that I got to setup the span (sniff) to travel over a wan, or otherwise hammer the VoIP system to force the call flow through the gateway, and later sniff the gateway.

thats the alternative I want to evaluate
may not be the most efficient, but if it works its a solution