Some of these best practices will help you get the most out of your Freshcaller call center.
Use ethernet and not WiFi. The wireless medium adds to the packet loss and can cause issues with call quality and hence must be avoided.
If you are using WiFi, reduce packet conflicts by reducing the number of devices operating on same channel.
Avoid transferring huge amounts of data in the same WiFi network as the voice because this can add to the latency.
Use high bandwidth internet connection as a lower bandwidth adds to the inherent latency involved in algorithmic processing, network traversal etc.
Local network conditions have the highest impact on voice quality. Make sure you have sufficient bandwidth and try using ethernet for voice data.
If you have addressed the above issues and continue to have jitter related impact on your voice quality, you may consider configuring your router with QoS rules to prioritize traffic on the UDP ports ranging from 10000-20000. (You can read this great article on setting up QoS for VoIP in your network.)
We recommend you use USB / 3.5mm headsets over bluetooth ones. Even while using bluetooth ones, it is better to connect to the USB dongle that comes with the headsets rather than rely on native bluetooth capabilities. This is because each browser behaves differently with different hardware vendors and it becomes impossibly difficult to troubleshoot such issues.