ABTO Software’s VoIP SIP SDK
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.
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.