Troubleshoot Common JustCall Mobile App Issues

If the JustCall mobile app is not working as expected, walk through these fixes for the most common problems. Most issues resolve with a quick settings check.

Applies to: iOS and Android

No incoming call notifications

Symptoms: Calls go straight to voicemail; your phone never rings.

1. Confirm your agent status is set to Available in the JustCall app
2. Check that push notifications are enabled: iOS — Settings > Notifications > JustCall; Android — Settings > Apps > JustCall > Notifications
3. On Android, exclude JustCall from battery optimization (Settings > Battery > JustCall > Unrestricted)
4. On Samsung devices, remove JustCall from Sleeping Apps under Device Care > Battery
5. Force-close the app and reopen it to re-establish the push notification connection
6. Restart your phone if the issue persists

Poor call quality

Symptoms: Choppy audio, echo, one-way audio, or dropped calls.

1. Switch to a strong Wi-Fi network if you are on cellular data
2. If on Wi-Fi, move closer to your router or switch to a less congested network
3. Close other apps that use bandwidth (video streaming, large downloads)
4. Ensure your phone's microphone is not blocked by a case or your hand
5. Test with headphones or earbuds to isolate the issue
6. If audio is one-way, check that microphone permission is granted to JustCall

Cannot log in

Symptoms: Login screen shows an error or spins indefinitely.

1. Verify your email and password are correct — try logging in on the web dashboard to confirm
2. Check your internet connection by opening a web page in your browser
3. Clear the JustCall app cache: Android — Settings > Apps > JustCall > Storage > Clear Cache; iOS — delete and reinstall the app
4. Update to the latest version of the app from the App Store or Play Store
5. If your account uses SSO, confirm with your IT team that SSO is configured correctly

App crashes on launch

1. Update the app to the latest version
2. Restart your phone
3. On Android, clear the app cache (Settings > Apps > JustCall > Storage > Clear Cache)
4. On iOS, delete and reinstall the app
5. Ensure your phone meets the minimum OS requirement (iOS 15+ / Android 8.0+)

Battery drain

JustCall keeps a background connection for push notifications, which uses minimal battery. If you notice excessive drain:

1. Check that battery optimization is set to Unrestricted (not fully disabled)
2. Avoid keeping the app in the foreground when not in use — minimize it
3. Disable location services for JustCall if enabled (not required for core functionality)
4. Update to the latest app version, which may include battery optimizations

Related Articles

• Set Up the JustCall iOS App — initial setup and permissions
• Set Up the JustCall Android App — notifications and battery settings
• Troubleshoot Call Quality — advanced call quality diagnostics