This feature is typically not standard for every calling card and must be requested by the customer from customer service in order to have this service activated. This service is offered by some carriers and is usually limited to select countries. This is an FCC-required form that must be filled out by a long distance customer to allow the switching of long distance companies. U.S. within which a local telephone company may offer telecommunications services. The amount long-distance companies charge as the minimum regardless of how long the call lasts.
Some telephone companies show the billing period in fractions of minutes.
For example a 6 second call may be shown as 0.1 minutes. This information is fed into your local carrier's computer banks to determine proper billing. When a consumer's long distance carrier is changed without the customer's knowledge or consent. If you get a bill from an unknown company or find higher interstate charges on your local phone bill, you have probably been slammed. Inc. All other products mentioned are registered trademarks or trademarks of their respective companies.