Guys, I'm using the C# interface to FreeSWITCH to add the ability to make and receive calls in an existing software application.


I want to record the conversations on the server, but I need to be able to access the recording after the call is complete.

The Call-ID value seemed the perfect solution to this and I added the following action to my dialplan entry.


<action application="export" data="execute_on_answer=record_session $${base_dir}/recordings/${strftime(%Y.%m.%d_%H.%M.%S)}_${uuid}_${caller_id_number}.wav"/>


This seemed to work fine, as I would get recording files created with a Guid in the name, but on closer inspection I found that the Guid used in the filename was not the same Guid associated with the successfully placed call in the application. I assume that this is because the application sees the Call-ID for the a-leg, whereas the dialplan entry is executed in the b-leg and therefore has it's own separate Guid.


Is there any way in which I can expose the Call-ID (or some other custom channel variable) for the a-leg to the b-leg so that it will be accessible within the XML dialplan and therefore be usable when creating the recording file?


Thanks for any suggestions/assistance offered.