Call back is one the important utilities available in the phone cards. This is intended to those who are on travel and who want to make long distance calls through the phone cards. By making use of the callback utility the caller has three important advantages. They are briefly explained here:

It is cheaper:

One of the main objectives of callback utility is to provide calling facility at the cheapest possible rate. In some of the countries, the calling tariff could be higher. Or it may be that the caller wants to call a number which he has registered with the calling company. In such cases, he can make use of callback utility. More…