An ECCC client can be written so that local recording is started automatically when a meeting starts. When the meeting has finished the recorded file is available on the client computer.
ECCC client side recording supports the codec/container formats supported by the WebRTC enabled browsers capable of recording. Currently Firefox and Chrome using the VP8/WebM codec/container format.
ECCC client side recording is supported on all operating systems for which there exist WebRTC enabled browsers such as Firefox and Chrome, such as Win7, Win10, MacOS and Linux/Ubuntu.
An example of client side recording can be found here: https://github.com/Ericsson/c3-web-examples/tree/gh-pages/recording
A more complete example can be found here: https://github.com/Ericsson/c3-bank-demo