Hi! I want to develop in Visual Studio and to build a SIP webphone. I searched and found a SIP softphone solution with a free sample program on the net: voip-sip-sdk.com/p_83-silverlight-sip-softphone-javascript-voip.html(I added this site for showing you the example program I found on the net) but don't know anything about it. Could you tell me something about this product? Is it a reliable device to build a SIP webphone in Visual Studio 2008? Thank you for your answer.