You can make free international calls with your Virgin inclusive minutes.

From U.K., 7 posts

Hi, I bring you good news, for if you don't know already. You are very lucky that Richard Branson allows you to ring 07744 and 973249 with your inclusive minutes on most Virgin plans. Once connected, the guy says you will be charged by your service provider, but this only applies after you have run out of minutes or use them at the wrong time according to your contract. He goes on to say that some mobile callers can use their inclusive minutes to make the call. Once connected you can dial nearly any international destination. Some Monday-Friday 8am-6pm, some 24hrs and some 7 days. Even includes some mobiles! Do not press the send key/green key after the international number, it will automatically connect. If you do you may get charged for the international call This number also works with some Orange and T-Mobile. From some O2 you can use 0870 and 0415649 in the same way. Happy calling...