In this article we'll cover:
Network Conditions
Wi-Fi vs Hardwired?
Great call quality starts with a great internet connection. A Wi-Fi connection will do, but a hardwired connection with Wi-Fi disabled works best. If you must use a Wi-Fi connection, use 2.4GHz instead of 5GHz when possible.
Truly’s advanced VoIP technology is resilient enough to work on most Wi-Fi networks. However, signal can vary greatly depending on how far you are from the access point and traffic on the wifi network. If you’re having issues with call quality while connected via Wi-Fi, try connecting your computer directly to your router via an ethernet cable as a test. If you’re still having issues, you can rule out the internet connection itself by downloading our mobile application and placing a test call over the cell network, which bypasses your internet connection altogether.
Internet Speed
You'll need an internet speed of at least 500kbps for average results, and closer to 1 Mbps will yield the best results. If your internet connection isn't fast enough, upgrading your service is the quickest way to improve your call quality.
Speed tests are usually good for confirming that you have the necessary bandwidth to start making calls, but are not necessarily a good indicator of network quality. This is because speed tests measure quality in a very narrow point in time (minutes out of a day) and for a very short period of time. They also get prioritized service by Internet Service Providers through ‘burst speeds’ to make their connections seem better than they actually are.
VPN or Proxy
We strongly recommend that you do not make calls with Truly while connected to a VPN or Proxy.
Proxying traffic adds latency and can cause Truly to automatically reduce the audio quality. Truly performance is best when the latency between the client and Truly's back end is lower than 100 ms.
Network Ports
Truly communicates via network ports to send and receive information. This traffic is blocked by default on most routers in an attempt to protect your computer. Some computers may use a software firewall to block these ports as well.
For detailed information about the ports Truly needs to work, check out Truly's Network Requirements.
Playback and Recording Devices
The right playback and recording device can make or break your calling experience. We recommend headsets over earbuds, AirPods, or the built-in speaker and microphone on your laptop. Headsets can improve audio quality by providing acoustic isolation between the speaker and microphone. How you select your headset is important.
PC Headsets
For lower end computers, we recommend USB Headsets over 3.5mm standard audio jack headsets. This allows you to bypass the native sound board. For machines with a higher end integrated sound board the 3.5mm connection should be fine. Connect directly to the PC for both 3.5mm and USB connections. Avoid connecting through docks or hubs.
Bluetooth Headsets
Bluetooth headsets can present unique challenges, as each headset operates slightly differently. If your headset came with a USB Bluetooth adapter, we recommend you pair it with the included adapter, rather than your device’s native Bluetooth receiver.
If you're having audio issues after implementing these best practices, check out our troubleshooting audio issues guide.