WebRTC - Pre-call Test

This precall-test consists of 3 steps:
First: Bandwidth test, estimating the download and upload speeds of your network connection.
Second: Devices test, checking that the camera, microphone and speaker are working.
Third: An audio/video webRTC call test, estimating the Quality of Service (QoS) indicators and recording a 7s video with an automatic replay to qualify the perceived quality.