VoIP intercomABTO Software offers not only VoIP SIP SDK for Windows, Android, and iOS, but also custom VoIP SIP Solutions on their basis:

  • corporate messengers and softphones with users status via presence or busy lamp field functionality;
  • automatic dialers that can recognize humans, fax modems, and automated response machines;
  • company‚Äôs call centers and help desks;
  • interactive voice response (IVR) systems;
  • intercom solutions;
  • Flash based and HTML5 based webphones for corporate websites and forums;
  • custom mobile applications for Android, iPhone, and iPad;
  • and much more.
To simplify life of developers of custom solutions we have developed several ready-to-use solutions specific for certain users of our SDK:


Development Environments:

  • Visual C++ / C++ / C# .NET
  • VB.NET / VB 6.0
  • Java
  • JavaScript / HTML / HTML5
  • Flash
  • Borland Delphi

Company details:

ABTO Software is the only owner and distributor of VoIP SIP SDK. The company also develops other products and offers software development services. Read more on