ABTO Software’s VoIP SIP SDK

VoIP SIP SDK for Windows

Development of custom SIP softphone or adding VoIP features to your software on:

  • VoIP SIP SDK for C++ / C#.NET
  • VoIP SIP SDK for Visual Basic 6.0 / VB.NET
  • VoIP SIP SDK for Delphi and Delphi XE7

We offer VoIP SIP SDK’s versions with support of voice-only, video, multiple lines, and video conference.

VoIP SIP SDK for Android

You can develop a custom voice-only or video SIP softphone for Android 2.3.x, 4.x, 5 with:

  • VoIP SIP SDK for Java (Eclipse)
  • VoIP SIP SDK for Java (Android Studio)

We provide fully functional trial SDK with 1 minute call limitation and sample app on Google Play.

VoIP SIP SDK for iPhone

You can build a custom SIP softphone for iOS 5, 6, 7, 8, using the following development environments:

  • VoIP SIP SDK for objective-C (Xcode)
  • VoIP SIP SDK for Swift

You can evaluate sample app on App Store and our fully functional trial SDK with 1 minute call limitation.