If you need call from skype to mobile phone all over the world or with in own countries ,then follow the instruction.
(1) In the main window, you will see a key pad, calling rates to all countries, and a Buy Skype Credit button.
(2) In the main window, click on the flag menu and change the country if you're calling abroad.
Then click in the box beside the flag. Type the phone number or click numbers on the keypad.
(3) Check you've got the number right. Then click the green Call button.
(4) If you'll call this number regularly, click the Save button under the dialpad. Next time, just find it in your Contacts so you don't have to type it in again.