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
Develop SIP based VoIP Server.
VoIP SIP Client SDK for .NET and ActiveX
SIP Softphone ActiveX
SIP SDK provides tools
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