Fix Microsoft Teams Audio Not Working on Android & iPhone

If Microsoft Teams audio isn’t working on your Android or iPhone, the fix usually involves checking the app’s microphone and speaker permissions, ensuring the correct audio device is selected, and clearing the app cache. This guide walks you through the most common causes and step-by-step solutions, from quick settings checks to more advanced troubleshooting.

Why Teams Audio Fails on Mobile

Teams on mobile depends on several layers working together: the app’s own settings, your phone’s system settings, and the network connection. A failure in any of these can cause no sound, one-way audio, or distorted calls. Common culprits include:

• Microphone or speaker permissions are denied at the OS level.
• The wrong audio output is selected (e.g., Bluetooth speaker vs. phone earpiece).
• Background app restrictions are killing Teams during calls.
• Outdated app or OS versions with known audio bugs.
• Network issues causing choppy or missing audio.

Quick Checks Before Deep Troubleshooting

Start with the simplest possibilities—they often solve the problem instantly.

1. Check the mute button inside the Teams call screen. It’s easy to accidentally tap it.
2. Turn up the volume on your phone and make sure it’s not in silent or Do Not Disturb mode.
3. Try a different audio device—disconnect Bluetooth headphones and see if the speaker works.
4. Test your phone’s mic with a voice recorder app to rule out hardware issues.
5. Force-close Teams and reopen it. On Android, swipe it away from recent apps; on iPhone, swipe up from the bottom and swipe the app card away.

Fix 1: Check App Permissions (Android & iPhone)

Both Android and iOS require explicit permission for Teams to access your microphone. If you denied it during the initial setup, calls will be silent to others.

On Android (varies by manufacturer):

1. Open Settings → Apps → Microsoft Teams.
2. Tap Permissions and ensure Microphone is allowed.
3. Also check Notifications and Background data are enabled.

On iPhone:

1. Open Settings → Privacy & Security → Microphone.
2. Make sure the toggle next to Microsoft Teams is green.
3. If it was off, turn it on and fully restart Teams.

Fix 2: Select the Correct Audio Device

Teams often remembers the last audio output you used. If you were on a Bluetooth headset, it may still try to route audio there even after the headset is off.

1. During a call, tap the More options (three dots) button.
2. Select Device settings or Audio settings.
3. Under Speaker, choose Phone speaker (or your desired output).
4. Under Microphone, select Phone microphone.
5. If you see a Bluetooth device listed but it’s not in use, tap it to switch back.

Fix 3: Clear Cache and Data (Android)

Corrupted cache files can cause audio glitches. On Android, clearing the cache is safe and often resolves persistent issues.

1. Go to Settings → Apps → Microsoft Teams.
2. Tap Storage → Clear Cache (do not clear data yet, as that signs you out).
3. Restart Teams and test a call.
4. If the problem persists, tap Clear Storage or Clear Data (this will sign you out and remove downloaded files, but your chats are safe in the cloud).

On iPhone, there is no direct cache clear. Instead, you can offload the app: Settings → General → iPhone Storage → Microsoft Teams → Offload App. This removes the app but keeps documents and data. Then reinstall Teams from the App Store.

Fix 4: Update the App and OS

Audio bugs are frequently fixed in updates. Running an outdated version is a common cause.

• Update Teams: Open the Google Play Store or App Store, search for Microsoft Teams, and tap Update if available.
• Update your phone OS: On Android, go to Settings → System → System update. On iPhone, go to Settings → General → Software Update.
• After updating, restart your phone and test Teams again.

Fix 5: Network and Bluetooth Interference

Poor network quality can cause audio to drop or become robotic. Bluetooth devices can also interfere with call audio.

• Switch networks: If you’re on Wi-Fi with weak signal, try cellular data (or vice versa) to see if the problem is network-related.
• Disable Bluetooth: Turn off Bluetooth in your phone’s quick settings to rule out a hidden connection to a device you forgot about.
• Check for other apps: Close any other apps that might be using the microphone (like voice assistants or recording apps).

Fix 6: Reinstall Teams

If none of the above works, a clean reinstall often clears any corrupted installation files.

1. Uninstall Microsoft Teams from your phone.
2. Restart your phone (this clears temporary system files).
3. Reinstall Teams from the official app store.
4. Sign in and test a call immediately.

Frequently Asked Questions

Why can I hear others but they can’t hear me?

This usually means the microphone permission is denied or the mic is muted. Check the mute button on the call screen, then verify the microphone permission in your phone’s settings. Also, ensure no other app is using the mic.

Why is Teams audio robotic or choppy?

This is typically a network issue. Try moving closer to your Wi-Fi router, or switch to a cellular data connection. Poor bandwidth causes packet loss, which makes audio sound robotic. You can also try turning off video to free up bandwidth.

Does clearing Teams cache delete my messages?

No. Clearing the cache only removes temporary files like images and thumbnails. Your messages, contacts, and call history are stored in the cloud and will reload when you open the app. Clearing data or uninstalling will also not delete your chats, but you’ll need to sign in again.

Why does Teams audio work on my computer but not my phone?

This points to a phone-specific issue. Check the app permissions, ensure your phone isn’t in silent mode, and test with a different audio app to confirm the speaker and mic work. Also, check if your phone has a battery saver mode that restricts background activity for Teams.

Can I use Teams with a Bluetooth headset?

Yes, but sometimes the headset’s profile doesn’t support both audio and microphone simultaneously. If you have issues, try disconnecting the headset and using the phone’s built-in mic and speaker. You can also check the headset’s battery level and charge it.

What if none of these fixes work?

If you’ve tried all the steps above, the issue may be with your Teams account or the server. Try signing out and signing back in. You can also check the Microsoft Teams service health page (via your admin) or contact your IT support team. On rare occasions, a hardware issue with your phone’s speaker or mic could be the cause.

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