But be careful.
To activate your account, they require to set you up with a Skype Premium Account
your Credit Card or PayPal account. They then credit your Skype account with about 7 Euros or equivalent, and the small print apparently allows them to start charging you a monthly fee
to your Credit Card or PayPal account, unless you stop it before 27 days have passed.
This is real Tricky Dicky and shonky behaviour. A bit like unsolicited goods. Might be illegal in some countries.
Here's the relevant text from a letter they emailed me:
Start enjoying your free trial
Brilliant! You're all set to try the very best of Skype free for a month. We really hope you enjoy seeing, hearing and keeping in touch with friends and loved ones - whether close or far- in even more ways. So don't worry about how long you talk [subject to a "Fair Use" policy], running out of minutes or what it'll cost - the next month is on us.
Love everything you can do with your trial? Great, you won't need to do anything. At the end of your month we'll automatically set up a recurring payment so you can continue to enjoy it for as long as you'd like.
Want to cancel? Not a problem. Simply visit your account within the first 27 days of the trial.
Need some help? Don't be shy. Get live one-to-one customer support, visit skype.com/go/livechat and sign in to your account. Currently available in English only.
A few handy details:
Skype Name: XXXXXXXXXX
Product name: Skype Premium
Total amount charged: EUR0.00
Start of free trial: Mar 25, 2013
Order number: 123456789
First payment taken on: Apr 21, 2013