Skype are offering a FREE one month 'Unlimited World' subscription, allowing you to make unlimited FREE worldwide calls to both mobiles and landlines. Sign up on their website to get started. This subscription would usually set you back by £9.76. If you've got friends or business abroad, this trial is well worth it.
To claim your free Skype international calls, click 'GET FREEBIE', then 'Get your free month'. Fill out your details and click 'I agree'. On the next pages you'll need to supply your billing address and payment details, but don't worry, your card will not be charged. Just make sure to cancel the subscription before the 30 days is up or you'll be charged a renewal fee.
Please note that Skype is not intended for making emergency calls.