FS-3214 try this

diff --git a/src/mod/endpoints/mod_sofia/sofia.c b/src/mod/endpoints/mod_sofia/sofia.c
index 12f1b233fcf3dfd7c89b8cf62ffc8170f8307f38..23f1fd0e8821bd837051794f265d78eab8549545 100644 (file)
--- a/src/mod/endpoints/mod_sofia/sofia.c
+++ b/src/mod/endpoints/mod_sofia/sofia.c
@@ -4928,7 +4928,11 @@ static void sofia_handle_sip_i_state(switch_core_session_t *session, int status,
                                                match = sofia_glue_negotiate_sdp(session, r_sdp);
                                        }
 
-                                       if (match) {
+                                       if (!match) {
+                                               if (switch_channel_get_state(channel) != CS_NEW) {
+                                                       nua_respond(tech_pvt->nh, SIP_488_NOT_ACCEPTABLE, TAG_END());
+                                               }
+                                       } else {
                                                nua_handle_t *bnh;
                                                sip_replaces_t *replaces;
                                                su_home_t *home = NULL;
@@ -4936,6 +4940,8 @@ static void sofia_handle_sip_i_state(switch_core_session_t *session, int status,
                                                sofia_set_flag_locked(tech_pvt, TFLAG_READY);
                                                if (switch_channel_get_state(channel) == CS_NEW) {
                                                        switch_channel_set_state(channel, CS_INIT);
+                                               } else {
+                                                       nua_respond(tech_pvt->nh, SIP_200_OK, TAG_END());
                                                }
                                                sofia_set_flag(tech_pvt, TFLAG_SDP);
                                                if (replaces_str) {