SIP SDK
SIP SDK for .NET and ActiveX
SIP SDK for .NET and ActiveX
Chat and send files to anyone on your LAN!
VoIP SIP Client SDK for .NET and ActiveX
SIP Softphone ActiveX
Softphone SDK, SIP SDK, VOIP SDK, Softphone
For ETL.
VoIP SIP SDK with DLL, ActiveX and .NET
SIP Phone DLL
VoIP SIP SDK for .NET and ActiveX
DNDstation - Only the Game!