SILVERLIGHT SIP SOFTPHONE 9.2.0 screenshot Ozeki MediaGateway SIP example to develop a Silverlight VoIP softphone in .Net. It is based on Ozeki VoIP SIP SDK that provides stable background. It allows to make voice and video calls, softphone, IVR applications, autodialer, DTMF signaling, etc Download SILVERLIGHT SIP SOFTPHONE 9.2.0