2008/12/4 nitu dhanurved <nitudhanurved16 at gmail.com>: > hi, > pjsip_100rel_init_module(g_endpt); > > what does it mean? > what is the functionality of this function call? It's related to Reliability of Provisional Responses: http://tools.ietf.org/html/rfc3262 Basically an UAS replies a 1XX and the UAC confirms the reception of the provisional response with a PRACK request. -- I?aki Baz Castillo <ibc at aliax.net>