ABTO Software offers not only VoIP SIP SDK for Windows, Android, and iOS, but also custom 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’s 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:

We were looking for intelligent solutions in short time, we met with ABTO and we are pleased