Bitrate
Last updated: 03 April 2022
In the context of VoIP (and WebRTC), bitrate is the number of bits per second that are being actively sent or received over the network.
A few things to remember about bitrate:
The maximum bitrate possible is capped by the bandwidth available, which can be dynamic throughout a single session. See BWE Bitrate changes dynamically throughout the session, due to a multitude of reasons: available bandwidth, CPU, etc. Voice codecs  require much less bitrate than video codecs Downstream and upstream bitrates are asymmetric
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Additional reading material:
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