Skip to main content

Troubleshooting: Unable to Make Outbound Calls from Your IP Phone

Troubleshoot outbound calling problems on Unitel Voice Yealink IP phones. Fix dialing errors, registration issues, failed calls, and problems making calls from T57W, T34W, and W70B/W73H devices.

If you're having trouble making outbound calls from your Unitel Voice IP phone, follow these steps to identify and resolve the issue.

These instructions apply to supported Yealink T57W, T34W, and W70B/W73H phones on the Unitel Voice Office Plan.

Step 1: Check Your Phone's Connection

Make sure your IP phone is powered on and connected to your network.

  • Confirm that your phone is connected to the internet through Ethernet or a configured Wi-Fi connection.

  • Check for any messages such as Not Registered, Register Failed, or Network Unavailable.

  • For W70B/W73H cordless phones, make sure the handset is connected to its base station.

If your phone isn't registered, see our Troubleshooting: IP Phone Is Not Online or Registered article.

Step 2: Check the Number You're Dialing

Make sure you're dialing a valid phone number.

  1. Try dialing the full 10-digit phone number, including the area code.

  2. If the call doesn't connect, try dialing 1 + the 10-digit number.

  3. Test another phone number to see whether the problem affects all outbound calls or only a specific number.

Step 3: Restart Your IP Phone

Restarting your phone may resolve temporary connection issues.

  1. Disconnect the phone's power adapter or PoE Ethernet cable.

  2. Wait approximately 10 seconds.

  3. Reconnect the power source.

  4. Allow the phone to restart and reconnect to Unitel Voice.

For cordless phones, restart the W70B base station and allow the W73H handset to reconnect.

Step 4: Test Another Device

If you also use the Unitel Voice Mobile App or Desktop Softphone, try making an outbound call from that device.

  • If calls work from another device: The issue may be specific to your IP phone or its network connection.

  • If calls fail from all devices: The issue may be related to your account, extension, or calling configuration.

Still Unable to Make Outbound Calls?

If the problem continues, please contact Unitel Voice Support.

Please provide your employee extension, phone model, the number you're trying to call, and any error messages or recordings you hear.

Our Support Team can help investigate why your outbound calls aren't connecting.

Did this answer your question?