Foreign Exchange (FX) service provides local telephone service from a central office that is outside the subscriber’s exchange area. A user picks up the phone in one city and receives a dial tone in another (foreign) city. This service gives people located in the foreign city the ability to place a local call to the user.
This service is not specific to any vertical market. Practically all types of businesses use Foreign Exchange service, especially large corporations with telecommuters and the airlines.Foreign Exchanges (FX) by noelj07