I was delighted to see that NCH had released this program. The number of SIP compatible programs for Windows Media 5 has been startling small. I installed the program and configured the same. To my surprise, I could not get the test voice to play out of speaker during set up and could not get the program to recognize an Internet connection. I tried to register both while logged on to my home network and over Cingular 3g. It is important to stress, that it never reached the point of trying to connect to my SIP server. The program simply failed to see any internet connection. Any suggestions?