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Voice Quality Problems

Click on any of the following questions to jump to the answer:

  1. I’m having voice quality problems when I make calls from my PC.

  2. I’m having voice quality problems when I make calls from either my phone or PC.

  3. On my calls only one side is hearing sound – the other side gets silence.

Questions & Answers

I’m having voice quality problems when I make calls from my PC.

The most common symptoms of poor voice quality when making calls from “This PC” are:

  • Choppy voice
  • Can’t hear anything
  • One way voice (one side can hear, the other side cannot)
  • People complain your voice is distant or echo-ey.

These issues are almost always associated with one or more of these issues in your local environment:

  • Other apps on your PC causing performance degradation,
  • A Poor Internet connection,
  • Your PC/Mac audio/sound settings
  • Your Headset
  • A VPN connection
  • Firewall port blocking problems
Choppy Voice – Quick Analysis:
  • If a single user in your team is experiencing “choppy voice”  then it is most often due to other apps on their PC causing performance degradation.
    Have them re-boot their PC to clear out those performance hogs.
  • If multiple users in your team are co-located and are experiencing “choppy voice” then it is most often due to local LAN traffic congestion or Internet access traffic congestion. It can also be due to WiFi interference, such as what can be caused by a micro-wave oven.
    Ask your IT staff to identify the source of the problem in your local environment.
  • If multiple users in your team are not co-located and are experiencing “choppy voice” then it is most often due to a common VPN they are using.
    Have your IT staff investigate VPN congestion.
Distant or Echo-ey Voice – Quick Analysis:

This is usually caused by your voice being picked up by the microphone in your PC instead of (or in addition to) the microphone in your headset.  Please carefully check the sound settings in your PC to ensure your voice is only picked up my your headset microphone.

Voice Quality Issues – Steps to Try

Note, you can usually bypass all causes of voice quality problems by choosing a Calling Device other than “This PC” to make your calls with turboDial. That’s a good option if you determine that your PC or network are not going to be compatible with voice calls.

Try the following steps one at a time to find the cause. After each test try some calls to see if the problem is resolved.

    1. Reboot your PC to kill off any processes that may be hogging resources.
    2. Twilio provides a test tool here. There are 2 tests to run for the client on your PC and 2 test to run for your network. Run all tests and look for indications of problems that could cause voice quality issues. You may need to work with your local IT support personnel to resolve any issues.
    3. Carefully review the sound settings on your PC/Mac. You may be using different audio devices for the microphone or speakers than you expect.
    4. Try a different headset. Your headset may have a broken wire or a bad connector.
    5. If your headset connects via the audio jack on your PC, try using a USB headset, and likewise, if you’re headset uses USB try using a headset that connects via the audio jack.
    6. If you have a Bluetooth headset or a noise canceling headset, try a plain wired headset.
    7. If your PC is connected to your router via WIFI try connecting using an Ethernet cable. If that solves the problem then your issue was likely caused by radio interference. You can try forcing your WIFI router to use a different frequency band.
    8. Try a different PC.
    9. Power off your Router and your Internet Modem (cable or DSL). Wait 2 minutes and power back on.
    10. Try using a different Internet connection. For example, if you are experiencing the problem in your office try it at home.
    11. Ask your IT support if you are using a VPN. If so, seek their help to test voice quality when the VPN is not used.

    I’m having voice quality problems when I make calls from either my phone or PC.


    Note that the turboDial app sets up your calls but is not involved in sending or receiving voice; voice is handled by Twilio. So persistent voice quality problems must be investigated with Twilio.If it persists you can have your account owner login to the Twilio account and submit a support ticket. In that ticket it is always helpful to include the “SID” for an example call that had the problem.  That “SID” value can
    be found in the Call Note Record that turboDial created, and in the body of the note comments the “SID” is the long string of characters following “Twilio ID=”.

    On my calls only one side is hearing sound – the other side gets silence.

    This is called “one-way voice”.

    Note that the turboDial app sets up your calls but is not involved in sending or receiving voice; voice is handled by the internal software of your PC/Mac and Twilio. If you are making your calls using your PC and a headset then the one-way voice problem is almost always associated with the headset you are using or the sound settings in your PC/Mac, or both.
    Please thoroughly review your sound settings to make sure they are configured as they should be. If that doesn’t solve the problem also try re-booting your PC/Mac.
    You may also need to try different headsets and headsets that use a different connection to your PC.

    Also see this page for some additional step you can take.

  • If you are making your calls using a Calling Device such as your mobile phone or a desk phone, then the one-way voice may be caused by a problem in Twilio’s network. If it persists you can have your account owner login to the Twilio account and submit a support ticket. In that ticket it is always helpful to include the “SID” for an example call that had the problem.  That “SID” value can be found in the Call Note Record that turboDial created, and in the body of the note comments the “SID” is the long string of characters following “Twilio ID=”.
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