iOS CallKit framework and Android ConnectionService for React Native
A sample app to demonstrate how to integrate Apple CallKit into OpenTok ...
One-to-one video call using CallKit and PushKit with flutter iOS app.
Flutter iOS CallKit framework - Currently iOS >= 10.0 only
Flutter SDK for CallKit integration to Flutter applications on iOS
Vonage(OpenTok) video chat demo in swift
Flutter VoIP Push Notification - Currently iOS >= 8.0 only