Here are some steps you can take to troubleshoot the issue:

1. Check In-Ear Speaker Volume:

  • During the call, use the volume buttons on the side of your iPhone/iPad to adjust the in-ear speaker volume.
  • The top button increases volume, while the bottom button decreases it.
  • Ensure the volume is set to a comfortable level for you.

2. Verify Network Connectivity:

  • A weak internet connection can impact call quality.
  • Check your Wi-Fi or mobile data connection and try moving to a location with a stronger signal.

3. Restart Your Device:

  • Sometimes, a simple restart can resolve minor glitches that might be affecting audio.
  • Turn off your device completely, wait for a few seconds, and then power it back on.

4. Check for App Updates:

  • Outdated app versions can sometimes cause compatibility issues.
  • Open the App Store and check for any available updates for the 2ndLine app. 
  • Install the latest version if necessary.

5. Ensure Bluetooth is Disabled:

  • If you have a Bluetooth headset connected, it might be interfering with the call audio.
  • Disable Bluetooth and try the call again.

6. Contact 2ndLine Support:

  • If none of the above steps resolve the issue, contact 2ndLine support for further assistance.
  • They can investigate the problem further and provide more specific guidance based on your situation.

Here's how to contact 2ndLine support:

  • Within the app: Look for the "FAQs & Support" or "Support" section within the app.
  • Website: Visit the 2ndLine website and navigate to the support page.