diff --git a/lib/tasks/transcribe.js b/lib/tasks/transcribe.js
index 2b51f6af..d50dfb03 100644
--- a/lib/tasks/transcribe.js
+++ b/lib/tasks/transcribe.js
@@ -41,6 +41,7 @@ class TaskTranscribe extends SttTask {
     /* buffer speech for continuous asr */
     this._bufferedTranscripts = [];
     this.bugname_prefix = 'transcribe_';
+    this.bugnames = new Map();
   }
 
   get name() { return TaskName.Transcribe; }
@@ -89,13 +90,13 @@ class TaskTranscribe extends SttTask {
       stopTranscription = true;
       this.ep.stopTranscription({
         vendor: this.vendor,
-        bugname: this.ep.transcribe_bugname
+        bugname: this.bugnames.get(1)
       })
         .catch((err) => this.logger.info(err, 'Error TaskTranscribe:kill'));
     }
     if (this.separateRecognitionPerChannel && this.ep2 && this.ep2.connected) {
       stopTranscription = true;
-      this.ep2.stopTranscription({vendor: this.vendor, bugname: this.ep2.transcribe_bugname})
+      this.ep2.stopTranscription({vendor: this.vendor, bugname: this.bugnames.get(2)})
         .catch((err) => this.logger.info(err, 'Error TaskTranscribe:kill'));
     }
 
@@ -265,31 +266,32 @@ class TaskTranscribe extends SttTask {
         }
     }
     // save dedicated bugname for each endpoint
-    ep.transcribe_bugname = `${bugname}_${Date.now()}`;
+    this.bugnames.set(channel, `${bugname}_${Date.now()}`);
     /* common handler for all stt engine errors */
-    this.addCustomEventListener(ep, JambonzTranscriptionEvents.Error, this._onJambonzError.bind(this, cs, ep));
+    this.addCustomEventListener(ep, JambonzTranscriptionEvents.Error, this._onJambonzError.bind(this, cs, ep, channel));
     await ep.set(opts)
       .catch((err) => this.logger.info(err, 'Error setting channel variables'));
   }
 
   async _startTranscribing(cs, ep, channel) {
     await this._setSpeechHandlers(cs, ep, channel);
-    await this._transcribe(ep);
+    await this._transcribe(ep, channel);
 
     /* start child span for this channel */
     const {span, ctx} = this.startChildSpan(`${STT_LISTEN_SPAN_NAME}:${channel}`);
     this.childSpan[channel - 1] = {span, ctx};
   }
 
-  async _transcribe(ep) {
+  async _transcribe(ep, channel) {
     this.logger.debug(
-      `TaskTranscribe:_transcribe - starting transcription vendor ${this.vendor} bugname ${ep.transcribe_bugname}`);
+      `TaskTranscribe:_transcribe - starting transcription vendor
+ ${this.vendor} bugname ${this.bugnames.get(channel)}`);
     await ep.startTranscription({
       vendor: this.vendor,
       interim: this.interim ? true : false,
       locale: this.language,
       channels: /*this.separateRecognitionPerChannel ? 2 : */ 1,
-      bugname: ep.transcribe_bugname,
+      bugname: this.bugnames.get(channel),
       hostport: this.hostport
     });
   }
@@ -297,7 +299,7 @@ class TaskTranscribe extends SttTask {
   async _onTranscription(cs, ep, channel, evt, fsEvent) {
     // make sure this is not a transcript from answering machine detection
     const bugname = fsEvent.getHeader('media-bugname');
-    if (bugname && ep.transcribe_bugname !== bugname) return;
+    if (bugname && this.bugnames.get(channel) !== bugname) return;
 
     if (this.vendor === 'ibm' && evt?.state === 'listening') return;
 
@@ -330,7 +332,7 @@ class TaskTranscribe extends SttTask {
       }
       else {
         this.logger.info({evt}, 'TaskTranscribe:_onTranscription - got empty transcript, listen again');
-        this._transcribe(ep);
+        this._transcribe(ep, channel);
       }
       return;
     }
@@ -409,7 +411,7 @@ class TaskTranscribe extends SttTask {
       });
       this.childSpan[channel - 1].span.end();
     }
-    this._transcribe(ep);
+    this._transcribe(ep, channel);
 
     /* start new child span for this channel */
     const {span, ctx} = this.startChildSpan(`${STT_LISTEN_SPAN_NAME}:${channel}`);
@@ -426,7 +428,7 @@ class TaskTranscribe extends SttTask {
       this.childSpan[channel - 1].span.end();
     }
 
-    this._transcribe(ep);
+    this._transcribe(ep, channel);
 
     /* start new child span for this channel */
     const {span, ctx} = this.startChildSpan(`${STT_LISTEN_SPAN_NAME}:${channel}`);
@@ -440,12 +442,12 @@ class TaskTranscribe extends SttTask {
     }
   }
 
-  async _onJambonzError(cs, _ep, evt) {
+  async _onJambonzError(cs, _ep, channel, evt) {
     this.logger.info({evt}, 'TaskTranscribe:_onJambonzError');
     if (this.isHandledByPrimaryProvider && this.fallbackVendor) {
       _ep.stopTranscription({
         vendor: this.vendor,
-        bugname: _ep.transcribe_bugname
+        bugname: this.bugnames.get(channel)
       })
         .catch((err) => this.logger.error({err}, `Error stopping transcription for primary vendor ${this.vendor}`));
       const {updateSpeechCredentialLastUsed} = require('../utils/db-utils')(this.logger, cs.srf);