Ozeki VoIP SIP .NET SDK allows to develop a DTMF navigated IVR system written in VB.NET. In this sample program an IVR tree is built up from .xml file and SIP communication is supported by Ozeki SIP SDK. The extended codec support (G.729 and further codecs) assures excellent sound quality. The SDK makes it possible to build IP based telephone. Free download of DTMF IVR SYSTEM IN VB.NET 9.7.0, size 17.30 Mb.
