conaito VoIP SDK ActiveX
conaito VoIP SDK ActiveX for developers
conaito VoIP SDK ActiveX for developers
Conversation in a local network.
VOIP Technology Quick Guide
MizuPhone -SIP Softphone for Windows
T.38 Fax/Voice modem for SIP/H.323/ISDN CAPI
Orion VoIP Monitor
VoIP Tunneling and Encryption
SIP SDK provides tools
BitRope P2P Acc works with all p2p clients.
.Net SDK for VoIP call system development