With an unlimited subscription you don’t need to worry 
                      about reaching your monthly allowance. We offer unlimited 
                      subscriptions* for calls to landlines in more 
                      than 40 destinations (and for some destinations, calls 
                      to mobiles are included too).
                    If you choose a fixed-minute subscription, your call will 
                      be terminated when you reach your monthly minute limit. 
                      However, if you have more than one subscription or if you 
                      have some Skype Credit, 
                      you can continue to make calls even when you’ve used up 
                      your minutes. to buy Skype Credit, or purchase 
                      a new subscription, and continue making calls.
                    You can easily see how many minutes you have left on your subscription(s) – just check the subscription settings page in your account.
                    *A fair usage policy applies.