sinch-in-app-calling

What problem does it solve?

Integrate real-time voice and video calling into mobile and web applications without building signalling, PSTN routing, or push infrastructure from scratch. This Skill guides you through platform-specific SDK initialization, authentication, push configuration, and inbound call routing so your app can make and receive App-to-App, App-to-Phone, SIP, and conference calls reliably.

Core Features & Use Cases

• Cross-platform SDK guidance: step-by-step init and lifecycle management for Android, iOS, and JavaScript (browser) clients.
• Authentication & security: JWT-based registration patterns and recommendations for backend signing versus prototyping with embedded secrets.
• Push & system integration: managed push setup (FCM, APNs/PushKit), CallKit/LiveCommunicationKit guidance, and service worker patterns for web.
• Backend routing: ICE callback / connectMxp instructions to route PSTN or SIP inbound calls to in-app users.
• Use Case: Turn a mobile app into a VoIP client that can receive PSTN calls routed to users via a backend ICE handler and show system-native incoming call UI.

Quick Start

Help me integrate Sinch In-App Calling for my Android (or iOS/Web) project and walk me through initializing the SinchClient, configuring push and permissions, and implementing backend JWT authentication for production.