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  • Messaging
    SMS API
    Conversation API
    WhatsApp
    RCS
    MMS API
    Provisioning API
  • Voice and Video
    Voice API
    In-app Voice and Video SDK
    Elastic SIP Trunking
  • Email
  • Numbers & Connectivity
    Numbers API
    10DLC Brand and Campaign Registration API
  • Verification
  • Fax
  • Developer Forum
  • Sinch.com
    • Nothing Found
    Voice
      Nothing Found
      Getting started
      API Reference
      SDKs
      Tutorials
        Build a lead qualification app
        Build a conference system in C#
        Make a phone call
        Mask a number on an incoming call
        Securing Sinch calling
        Get a second number
      Additional resources
      Release notes
      In-app Voice and Video

Voice REST API Tutorials

Learn how to apply the Voice REST API by following these tutorials:

Tutorial Description Language
Build your own conference calling system Learn how to build your own conference calling system. ASP.NET
Mask a number Learn how to mask a number on an incoming call. ASP.NET Core 6.0
Build a lead qualification app Learn how to build an app that qualifies leads using AMD and IVR. Java SDK
Secure your Sinch Calling app Learn how to secure your application. ASP.NET MVC 5
Test Sinch callbacks Learn how to redirect a phone call to your number from a Sinch number using ngrok. Node.js
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