Additional End-to-End Encryption Support for Voice and Video Calls

Currently, voice and video calls are encrypted using WebRTC’s DTLS-SRTP mechanism, which provides encryption in transit but does not offer complete end-to-end encryption. The customer has requested an additional E2EE layer where only the communicating participants hold the encryption keys, ensuring CometChat’s media infrastructure cannot decrypt the audio or video streams. They would also like this capability to be supported across Flutter (iOS and Android) and JavaScript SDKs, including calls answered from the lock screen.