You could pass them as SIP headers on your INVITE and then use a lua script to extra them and call a webservice. Just one example of how to accomplish.

Do you have more specific details about what you are trying to call?
On Tue, Jun 9, 2015 at 7:55 PM Jon Lederman <jonlederman@gmail.com> wrote:
Hi,

I’d like to send some auxiliary data via SIP during call setup and have freeswitch provide notification to an external process when that call setup is occurring and provide the auxiliary data.  What would be the best way to achieve this?  In particular, what events should I subscribe to in order to track call setups occurring in freeswitch in such a way that I can grab the auxiliary SIP data?

Thanks.



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