[Freeswitch-users] IVR Architecture

Hi We are considering writing our own module for processing IVR in C. We are considering using mod_event_socket and then modify it to consume and produce the events internally instead of passing them to the socket. Is this a good idea? I know FreeSWITCH already has a mod_dialplan_xml which can use mod_curl to communicate to the outside world for I/O and DB access. But ... 1) Does XML have all the power flexibility that will be needed for powerful IVR applications? 2) Does mod_dialplan_xml use a separate thread for each IVR execution ? What will be the overhead of interpreting the XML ? 3) Any more ideas ? Thanks :) regards, Anita