FS-2801

src/mod/endpoints/mod_sofia/sofia.c

@@ -4684,7 +4684,9 @@ static void sofia_handle_sip_i_state(switch_core_session_t *session, int status,
 					if (!switch_channel_get_variable(other_channel, SWITCH_B_SDP_VARIABLE)) {
 						switch_channel_set_variable(other_channel, SWITCH_B_SDP_VARIABLE, r_sdp);
 					}
+					switch_mutex_unlock(tech_pvt->sofia_mutex);
 					switch_channel_pre_answer(other_channel);
+					switch_mutex_lock(tech_pvt->sofia_mutex);
 					switch_core_session_rwunlock(other_session);
 				}
 				goto done;
@@ -5112,7 +5114,9 @@ static void sofia_handle_sip_i_state(switch_core_session_t *session, int status,
 					if ((uuid = switch_channel_get_variable(channel, SWITCH_SIGNAL_BOND_VARIABLE))
 						&& (other_session = switch_core_session_locate(uuid))) {
 						other_channel = switch_core_session_get_channel(other_session);
+						switch_mutex_unlock(tech_pvt->sofia_mutex);
 						switch_channel_answer(other_channel);
+						switch_mutex_lock(tech_pvt->sofia_mutex);
 						switch_core_session_rwunlock(other_session);
 					}
 				}
@@ -5141,7 +5145,9 @@ static void sofia_handle_sip_i_state(switch_core_session_t *session, int status,
 						if (!switch_channel_get_variable(other_channel, SWITCH_B_SDP_VARIABLE)) {
 							switch_channel_set_variable(other_channel, SWITCH_B_SDP_VARIABLE, r_sdp);
 						}
+						switch_mutex_unlock(tech_pvt->sofia_mutex);
 						switch_channel_answer(other_channel);
+						switch_mutex_lock(tech_pvt->sofia_mutex);
 						switch_core_session_rwunlock(other_session);
 					}
 					goto done;