I love rebtel. They provide a convenient way of making international calls. Now they are offering promotions for new sign-ups. You can make more out of that promotion voucher In this hack, 120 minutes of calls have to be made to India while the rest of the minutes can be used to make calls to any country. Sign up for a new Rebtel account using your phone number, instructions can be seen here. Sign up for pfingo using your phone number. You will then get 2 S$ IDD credit and a virtual Singapore number, instructions can be seen here. Sign up for another rebtel account using your new pfingo virtual number (remember to use a new email address). This will give you another 80 minutes. # Altogether you will get 180 minutes for EACH number you register. First phone number: 80 minutes Virtual phone number: 80 minutes Pfingo idd (2$) to India: 20 minutes The good thing is that, you can register with pfingo using any phone number (it need not have to be in singapore) and get a singapore virtual number. Each number in Singapore (Real/Virtual) will give you 80 minutes of call credits. Want More?: Get a new sim card and make more out of that. Here is the hack! # (Strikes)?: Rebtel Disabled Bonus credit/vouchers on 08th July 2008 for virtual number registrations. So you won't be able to get benefits out of registration using virtual number. You can make free calls using Airtel to India. Read more at http://truvoip.blogspot.com/2008/08/make-free-calls-to-india-free-calls.html