fixed transcription is not received when call is terminated (#1259)

* fixed transcription is not received when call is terminated

* wip

* fixed failing testcases

* wip

* wip

* wip

* wip

* should not do gracefulshutdown on stopAmd

lib/utils/amd-utils.js

@@ -418,7 +418,11 @@ module.exports = (logger) => {
     }
 
     if (ep.connected) {
-      ep.stopTranscription({vendor, bugname})
+      ep.stopTranscription({
+        vendor,
+        bugname,
+        gracefulShutdown: false
+      })
         .catch((err) => logger.info(err, 'stopAmd: Error stopping transcription'));
       task.emit('amd', {type: AmdEvents.Stopped});
       ep.execute('avmd_stop').catch((err) => this.logger.info(err, 'Error stopping avmd'));