SIP VoIP
great vids free VoIP calls to voipreview4u.blogspot.com
We take a look at some of the offers VoIP telephony integrated with the Nokia N900. We used a WiFi connection in this video, but it also works over 3G and 3.5G (unfortunately, a bad experience a little less than 3G). This feature was to you in cooperation with VoIP.co.uk. placed when you try to have on your VoIP N900 or search for a SIP Trunk provider for your VoIP business rules, they give a call. Tell them The Really Mobile Project sent you:) Video Rating: 5.4

Does this work on 3G
I think I prefer SIP, Skype as SIP is an open industry standard protocol documented VoIP vs Skype, which is a proprietary (closed) protocol. I would not want to pay £ 35 a year to rent a “” number by Skype, if SIP numbers can be rented much cheaper.
it will be much cheaper if you buy only the SkypeOut and skypeln for only a year around 35ish wifi.
Yeahh ow cost free calls??
If you like Skype’s 1C per minute …
This would be useful to have especially when traveling (assuming there is WiFi access OFC) What are the rates for calls?