sinch-in-app-calling
Sinch In-App Calling
Overview
Real-time voice and video SDK for Android, iOS, and JavaScript (Web). Connects to Sinch's cloud for signaling and routing.
Supported call types
- App-to-App (VoIP/WebRTC between users)
- App-to-Phone (call PSTN numbers)
- App-to-SIP (connect to PBXs, contact centers)
- App-to-Conference (multi-party calls)
- Phone-to-App / SIP-to-App (inbound calls)
Agent Instructions
Prerequisites
The user needs a Sinch account with an application key and secret from the Sinch Build Dashboard. See sinch-authentication for credential setup — In-App Calling uses application-scoped auth (Application Key + Application Secret).
Integration workflow
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