force sdp to allways be in 200 OK regardless of 100rel and SDP O/A state. Some devices demand it (Cisco 5300 at least).

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@3015 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/endpoints/mod_sofia/mod_sofia.c

@@ -1308,6 +1308,7 @@ static switch_status_t sofia_answer_channel(switch_core_session_t *session)
 			nua_respond(tech_pvt->nh, SIP_200_OK, 
 						SOATAG_USER_SDP_STR(tech_pvt->local_sdp_str),
 						SOATAG_AUDIO_AUX("cn telephone-event"),
+						NUTAG_INCLUDE_EXTRA_SDP(1),
 						TAG_END());
 		}
 	}