488 Not Acceptable Media during blind call transfer in bypass media mode
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I've run into a problem during call transfer.
I have a CISCO switch calling Freeswitch that set bypass_media to true and makes a bridge to IVR platform (its actually a VXML browser).
When IVR platform then tries to transfer a call using REFER the Freeswitch sends INVITE to the gateway in order to perform call transfer but Media part inside SDP is empty - as a result gateway returns 488 Not Acceptable Media and transfer fails.
Is it possoble to make Freeswitch to send meaningful SDP inside INVITE? I would expect it to copy SDP from original incoming call - but this does not happen.