Add a Card:
Name of the Card: Its easy to name your cards by either the brand of card you use, or the card you use to dial a particular country. For example, India Card for all your Indian contacts.
Number: This is the gateway or the Toll Free number that you need to dial to make an international call. Its mostly given on the back of the card. If you have free minutes included as a part of your mobile plan, its cheaper to call the Non-Free number from your mobile, than the Toll Free (which is generally toll free from landlines only)
Pin Code: Pin code is mostly revealed when you scratch off the protective covering on the back of the card.
Manage Card:
You may Edit the details, Delete the card, or manage contact associations with the card. Deleting a card will also delete all its associated contacts.
Search:
All the contacts that you import from your address book are listed in this section. You can now search using the contact name. Next to your contact name, will be a call button. Just TAP to make a call to this contact using the associated Calling Card.