Fix stuck sip sessions

src/ice.c

@@ -3571,6 +3571,14 @@ void janus_ice_setup_remote_candidates(janus_ice_handle *handle, guint stream_id
 	pc->process_started = TRUE;
 }
 
+void janus_ice_reset_webrtc_alert(janus_ice_handle *handle) {
+	if(!handle || g_atomic_int_get(&handle->destroyed))
+	if(janus_flags_is_set(&handle->webrtc_flags, JANUS_ICE_HANDLE_WEBRTC_HAS_AGENT)) {
+		JANUS_LOG(LOG_WARN, "[%"SCNu64"] Agent already exists?\n", handle->handle_id);
+	}
+	janus_flags_clear(&handle->webrtc_flags, JANUS_ICE_HANDLE_WEBRTC_ALERT);
+}
+
 int janus_ice_setup_local(janus_ice_handle *handle, gboolean offer, gboolean trickle, janus_dtls_role dtls_role) {
 	if(!handle || g_atomic_int_get(&handle->destroyed))
 		return -1;

src/ice.h

@@ -811,4 +811,6 @@ json_t *janus_ice_static_event_loops_info(void);
  * @note This will wait for the related threads to exit, and so may delay the shutdown process */
 void janus_ice_stop_static_event_loops(void);
 
+void janus_ice_reset_webrtc_alert(janus_ice_handle *handle);
+
 #endif

src/janus.c

@@ -3705,6 +3705,13 @@ int janus_plugin_push_event(janus_plugin_session *plugin_session, janus_plugin *
 				return JANUS_ERROR_JSEP_INVALID_SDP;
 			}
 		}
+	} else {
+		janus_ice_handle *ice_handle = (janus_ice_handle *)plugin_session->gateway_handle;
+		//~ if(ice_handle == NULL || janus_flags_is_set(&ice_handle->webrtc_flags, JANUS_ICE_HANDLE_WEBRTC_READY)) {
+		if(ice_handle == NULL) {
+			JANUS_LOG(LOG_ERR, "Invalid ICE handle\n");
+		}
+		janus_ice_reset_webrtc_alert(ice_handle);
 	}
 	/* Reference the payload, as the plugin may still need it and will do a decref itself */
 	json_incref(message);