Proof

@fishjam-cloud/react-native-webrtc

published JS runs over the shared WebRTCModule seam, plus the fork's CallKit, PushKit and audio output methods ported from ios/RCTWebRTC over the iOS 27 simulator CallKit model: calls end right after they start because the simulator has no call screen
60%
API coverage
No visual proof cases have been published for this package yet. The registry summary below describes what the compat layer implements.
Working (9)
peer connectionscapturedata channelsstats and RTCView frames as react-native-webrtc; CallKit startendholdmuteoutgoing connectring timeout and callKitActionPerformed events; VoIP token and pending call getters; audio outputs and speaker override
Missing (7)
device call screen and in-call pillPushKit pushesaudio route pickercustom audio and video trackscamera frame processoraudio sinkvideo effects and Android Telecom