Hi. Before I start I would like to say that I have: 1. Googled this question for 3 days (not 3 days straight, but on and off for hours) 2. Searched this forum for similar questions but did not find any that suggested things I have not already tried. Please help! I'm having a hard time making VOIP phone calls on my Samsung Galaxy S. I am following these protocols precisely with three different VOIP providers: musings from the underground: Making free internet-based call using your Android phone I've downloaded Voice+, CSipSimple and Sipdroid, and followed specific instructions but cannot get any of them to do VOIP, so I've given up and am trying to use calls via my computer, but that isn't working either. Sigh. With every different VOIP provider, I keep getting this error on my phone: "Account registration unsuccessful" Thanks for any assistance! C.