fix exception that appears in logs if session ends before last call status update

lib/utils/ws-requestor.js

@@ -138,7 +138,7 @@ class WsRequestor extends BaseRequestor {
 
     /* simple notifications */
     if (['call:status', 'verb:status', 'jambonz:error'].includes(type) || reconnectingWithoutAck) {
-      this.ws.send(JSON.stringify(obj), () => {
+      this.ws?.send(JSON.stringify(obj), () => {
         this.logger.debug({obj}, `WsRequestor:request websocket: sent (${url})`);
         sendQueuedMsgs();
       });

test/dial-tests.js

@@ -5,6 +5,8 @@ const getJSON = bent('json')
 const clearModule = require('clear-module');
 const {provisionCallHook} = require('./utils')
 
+const sleepFor = (ms) => new Promise((r) => setTimeout(r, ms));
+
 process.on('unhandledRejection', (reason, p) => {
   console.log('Unhandled Rejection at: Promise', p, 'reason:', reason);
 });
@@ -47,6 +49,7 @@ test('\'dial-phone\'', async(t) => {
 
     // THEN
     const p = sippUac('uas-dial.xml', '172.38.0.10', undefined, undefined, 2);
+    await sleepFor(1000);
 
     let account_sid = '622f62e4-303a-49f2-bbe0-eb1e1714e37a';
     let post = bent('http://127.0.0.1:3000/', 'POST', 'json', 201);
@@ -84,7 +87,7 @@ test('\'dial-sip\'', async(t) => {
     try {
       await connect(srf);
       // wait for fs connected to drachtio server.
-      await new Promise(r => setTimeout(r, 1000));
+      await sleepFor(1000);
       // GIVEN
       const from = "dial_sip";
       let verbs = [

test/docker-compose-testbed.yaml

@@ -42,7 +42,7 @@ services:
         ipv4_address: 172.38.0.7
 
   drachtio:
-    image: drachtio/drachtio-server:latest
+    image: drachtio/drachtio-server:0.8.22
     restart: always
     command: drachtio --contact "sip:*;transport=udp" --mtu 4096 --address 0.0.0.0 --port 9022
     ports:
@@ -57,7 +57,7 @@ services:
         condition: service_healthy
 
   freeswitch:
-    image: drachtio/drachtio-freeswitch-mrf:0.4.18
+    image: drachtio/drachtio-freeswitch-mrf:0.4.33
     restart: always
     command: freeswitch --rtp-range-start 20000 --rtp-range-end 20100
     environment: