Maxim,
Could you please clarify the following
> Yes, for the module, so that the module can defer
some actions for
>> the later time. In my case I need to apply some transformations
>> before the message gets reassembled for the delivery.
1) The callback function that you plan on adding - Will the function be
modifying any attributes in the SDP ? Will it be recording any of the
SDP attributes for future use ?
2) Once you have implemented this callback mechanism in Kamailio, will
you be doing something similar for rtpproxy. Callback functions
registered at appropriate points could be used for encryption/decryption
or transcoding.
Thanks and Regards,
Vikram.