WINFORMS DTMF IVR 9.7.0 screenshot Ozeki VoIP SIP .NET SDK allows to develop WinForms DTMF IVR system to build IVR voice menu. It is based on Ozeki SIP SDK that ensures handling multiple lines & calls, DTMF signals, .wav or .mp3 file recording & playing. The softphone can be extended Download WINFORMS DTMF IVR 9.7.0
