Can an unlocked Vonage RTP300 be configured to work w/ Skype? I'm thinking not. It looks like the RTP300 needs SIP and Skype doesn't use SIP, from what I can see. I've got experience w/ networking, but I'm still fairly new to VoIP. Thanks My RTP300 is running firmware v3.1.17. I was able to find the unlock info in the forums here. Unlock was actually rather simple once I had the firmware image.