The original method in this thread is definitely not a permanent solution, as you can only get 60 minutes of free calls without a paid registration... The second method is better (with voipuser.org) , but using a UK number to make your outbound calls to a friend in the US will most likely cost them an arm and a leg, even if it is free for you. Also, unless you live in Ohio, your friends will be forced to pay for an out-of-state call whenever they dial your number from freedigits.com. That being said, I would suggest getting a freedigits number by following the methods in the first post, but then using a service from Google called Grandcentral ( grandcentral.com ). Grandcentral allows you to pick an area code and Google finds a number in that area code that you can have. It routes all calls to that specific, Google-provided number to several other user-defined numbers (so your Grandcentral number can replace your landline, mobile, and freedigits phones all at once!). Through this method, you can truly route all incoming call traffic from your Grandcentral number to either your mobile / landline / freedigits.com phone number free of charge, and your friend will be charged for a call to an area code of your choice. However, I'm still in the dark as far as outgoing calls go . I might have to install a second SIP-VoIP client on my iPod in order to have a free outgoing service. If there is anything similar to the voipuser.org system that is based in the US, it would be greatly appreciated!