C# VOIP VIDEO SOFTPHONE 9.2.0 screenshot Ozeki VoIP SIP .Net SDK for video softphone development to make/receive voice/video calls effectively. The sample program uses the SIP softphone source implementation of Ozeki SIP SDK. It supports HD video phoning, jitter buffer, H.263, H.264 codecs Download C# VOIP VIDEO SOFTPHONE 9.2.0