Check internet connection: Since 2nd Phone Number utilizes VoIP technology, a weak or unstable internet connection can cause audio issues. Check the WiFi signal or ensuring sufficient mobile data allowance.

  • Restart the app and device: Sometimes, a simple app restart or device reboot can resolve temporary glitches.

  • Clean the microphone: Dust or debris around the microphone might hinder sound clarity. Gently clean the microphone opening with a soft brush.

  • Verify device settings: Check if other apps might be using the microphone exclusively, like voice recorder or music apps. 

If the other person can't hear you during a call, here are some steps to troubleshoot:

  • Microphone Permissions: Ensure you've granted microphone access to the 2ndLine app. Follow these steps for your device:iOS: Settings > Privacy & Security > Microphone > Toggle on for 2nd Phone Number.

Remember :

If you're still facing issues, reach out to 2nd Phone Number support for further assistance.