ocs------ invite( <RequestSystemStatus>....</RequestSystemStatus> )---->sip server
ocs<----------------ok(<RequestSystemStatusrepsonse>normal</RequestSystemStatusrepsonse>)------sip server
ocs------------------ack-------------------------------------------------->sip server
ocs ----------------------info(<GetCSTAFeatures>....</GetCSTAFeatures>)----------------------->sip server
when the sip server received the info(<GetCSTAFeatures>....</GetCSTAFeatures>),it have not sent the <GetCSTAFeaturesResponse> to the ocs,waiting for someone tell me the reasones,and how I can figure it out.