VaxVoIP SIP SDK
VaxVoIP SIP SDK to develop web/soft phone.
VaxVoIP SIP SDK to develop web/soft phone.
SIP SDK for .NET and ActiveX
SIP SDK provides tools
SIP proxy server for Windows
VoIP SIP SDK with DLL, ActiveX and .NET
SIP Phone DLL
VoIP SIP SDK for .NET and ActiveX
SIP DLL for .NET and Win32 COM
skype auto dialer, phone dialer
.Net SDK for C# SIP WPF softphone development