diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3d04537372..c52bac6584 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -85,6 +85,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 -  Fix [#2298](https://github.com/microsoft/BotFramework-WebChat/issues/2298). Speech synthesize errors to be ignored, by [@compulim](https://github.com/compulim) in PR [#2300](https://github.com/microsoft/BotFramework-WebChat/issues/2300)
 -  Fix [#2243](https://github.com/microsoft/BotFramework-WebChat/issues/2243). Fixed sagas to correctly mark activities with speaking attachments, by [@tdurnford](https://github.com/tdurnford) in PR [#2320](https://github.com/microsoft/BotFramework-WebChat/issues/2320)
 -  Fix [#2365](https://github.com/microsoft/BotFramework-WebChat/issues/2365). Fix Adaptive Card `pushButton` appearance on Chrome, by [@corinagum](https://github.com/corinagum) in PR [#2382](https://github.com/microsoft/BotFramework-WebChat/pull/2382)
+-  Fix [#2379](https://github.com/microsoft/BotFramework-WebChat/issues/2379). Speech synthesis can be configured off by passing `null`, by [@compulim](https://github.com/compulim) in PR [#2408](https://github.com/microsoft/BotFramework-WebChat/pull/2408)
 
 ### Added
 
diff --git a/__tests__/setup/pageObjects/getConsoleLogs.js b/__tests__/setup/pageObjects/getConsoleLogs.js
new file mode 100644
index 0000000000..72e565a063
--- /dev/null
+++ b/__tests__/setup/pageObjects/getConsoleLogs.js
@@ -0,0 +1,3 @@
+export default async function getConsoleLogs(driver) {
+  return await driver.executeScript(() => window.__console__);
+}
diff --git a/__tests__/setup/pageObjects/index.js b/__tests__/setup/pageObjects/index.js
index 120c89a898..8b275e67e0 100644
--- a/__tests__/setup/pageObjects/index.js
+++ b/__tests__/setup/pageObjects/index.js
@@ -5,6 +5,7 @@ import dispatchAction from './dispatchAction';
 import endSpeechSynthesize from './endSpeechSynthesize';
 import errorSpeechSynthesize from './errorSpeechSynthesize';
 import executePromiseScript from './executePromiseScript';
+import getConsoleLogs from './getConsoleLogs';
 import getNotificationText from './getNotificationText';
 import getNumActivitiesShown from './getNumActivitiesShown';
 import getSendBoxText from './getSendBoxText';
@@ -37,6 +38,7 @@ export default function pageObjects(driver) {
       endSpeechSynthesize,
       errorSpeechSynthesize,
       executePromiseScript,
+      getConsoleLogs,
       getNotificationText,
       getNumActivitiesShown,
       getSendBoxText,
diff --git a/__tests__/speech.synthesis.js b/__tests__/speech.synthesis.js
index c4312b3799..5a8aa48f32 100644
--- a/__tests__/speech.synthesis.js
+++ b/__tests__/speech.synthesis.js
@@ -74,4 +74,28 @@ describe('speech synthesis', () => {
 
     await expect(speechRecognitionStartCalled().fn(driver)).resolves.toBeTruthy();
   });
+
+  test('should not synthesis if engine is explicitly configured off', async () => {
+    const { driver, pageObjects } = await setupWebDriver({
+      props: {
+        webSpeechPonyfillFactory: () => {
+          const { SpeechGrammarList, SpeechRecognition } = window.WebSpeechMock;
+
+          return {
+            SpeechGrammarList,
+            SpeechRecognition,
+            speechSynthesis: null,
+            SpeechSynthesisUtterance: null
+          };
+        }
+      }
+    });
+
+    await pageObjects.sendMessageViaMicrophone('Hello, World!');
+
+    await expect(speechRecognitionStartCalled().fn(driver)).resolves.toBeFalsy();
+    await driver.wait(minNumActivitiesShown(2), timeouts.directLine);
+
+    expect((await pageObjects.getConsoleLogs()).filter(([type]) => type === 'error')).toEqual([]);
+  });
 });
diff --git a/packages/component/src/BasicTranscript.js b/packages/component/src/BasicTranscript.js
index 3449e1d6aa..8a80c50614 100644
--- a/packages/component/src/BasicTranscript.js
+++ b/packages/component/src/BasicTranscript.js
@@ -110,7 +110,9 @@ const BasicTranscript = ({
               >
                 {element}
                 {// TODO: [P2] We should use core/definitions/speakingActivity for this predicate instead
-                activity.channelData && activity.channelData.speak && <SpeakActivity activity={activity} />}
+                speechSynthesis && activity.channelData && activity.channelData.speak && (
+                  <SpeakActivity activity={activity} />
+                )}
               </li>
             ))}
           </ul>
@@ -141,8 +143,8 @@ BasicTranscript.propTypes = {
     }).isRequired
   }).isRequired,
   webSpeechPonyfill: PropTypes.shape({
-    speechSynthesis: PropTypes.any.isRequired,
-    SpeechSynthesisUtterance: PropTypes.any.isRequired
+    speechSynthesis: PropTypes.any,
+    SpeechSynthesisUtterance: PropTypes.any
   })
 };