The U.S. telecommunications network is comprised of 25,000. central office switches, more than a billion miles of transmissions lines, almost as many miles of special service circuits, and 122 millions access lines connecting customers to the public switched telephone network. The principal providers of telecommunications services are COMMON CARRIERS . This type of company is obliged to provide services to customers on a nondiscriminatory basis.. Common carriers that provide basic service can be divided into two basic type - Local Exchange Companies and Inter Exchange Companies. Local Exchange Co. for the most part comprised of 22 companies spun off by the divestiture of AT&T/Bell in 1982. With a total revenue of $ 90.1 Billion in 1990 , many still look at it like a " monopoly in disguise " With a long-term agreement of participation to use a giant high-tech switch in Los Angeles ( AT&T 5 E.S.S. ) INET is now able to use the network of four major carriers simultaneously. INET as a result received its own certification as an Inter Exchange Carrier. ( CIC number 105468 ) Inter Exchange companies provide long distance services. The " Big Three " carriers collectively account for over 80% of the long distance market. However , according to the research and study conducted by Atlantic/ACM, ATM and TRA the major long distance carriers are expected to continue to lose market share in the future. That is good news for companies like INET. But above all , it means lower prices and better services for telephone users. Three elements comprise the life of a " One Plus Service " telephone call: When you make a call it follows telephone lines from your location to one of the " Baby Bells " or to one of the independent phone companies. This first portion of the call is referred to as Access. If you are placing a long distance call , outside your service area ( LATA ) the local phone company switches the call by selecting one of the inter exchange companies ( INET for example ) for the Transportation of the call. When the call reaches the vicinity of its intended destination, it is "concluded" or "placed" by the local phone company , it is the Termination of the call. Since the AT&T/Bell divestiture, sophisticated equipment has been installed in all major cities to allow other carriers ( like INET in Los Angeles ) to have many of the same advantages that the "Major" carriers had. These areas today are called " Equal Access Areas " Copyright © INET Inc. 1997 |