Twilio provides the following tools for understanding clients' connections and diagnosing any potential problems before, during, or after a Video call.
The Twilio Video Diagnostics Application is an open-source ReactJS application that tests participants’ device and software setup, connectivity with the Twilio Cloud, and network performance. It uses Twilio’s RTC Diagnostics SDK and Preflight API to provide end-users feedback about their network quality and device setup and also includes recommendations for improving their video call quality.
This is a general WebRTC SDK and does not rely on Twilio infrastructure. You can incorporate it into your applications for pre-call testing or troubleshooting user issues during a call.