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Introduction to Telecom Billing Book

Telecom Billing Book
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Central Exchange - Centrex Central Exchange - Centrex
Centrex is a service offered by a local telephone service provider that allows the customer to have features that are typically associated with a private branch exchange (PBX). These features include 3 or 4 digit dialing, intercom features, distinctive line ringing for inside and outside lines, voice mail waiting indication and others. Centrex services are provided by the central office switching facilities in the telephone network.
Central Exchange - Centrex Centrex System
Centrex System Diagram
This figure shows a typical Centrex system. It shows that the EO switch is equipped with Centrex software. Individual ports from the switch are connected to individual telephones at a company. The public telephone company programs the Centrex features for specific companies into the switch software. The Centrex software monitors the ports so advanced features such as abbreviated dialing can be performed. This example shows that a telephone that is used in a Centrex system can dial a 4 digit dialing number to reach a telephone connected within the companies Centrex telephone network.
alt Telecom Billing Books
Telecom Billing Book
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Introduction to Telecom Billing Book
This book explains how companies bill for telephone and data services, information services, and non-communication products and services. Billing and customer care systems convert the bits and bytes of digital information within a network into the money that will be received by the service provide.

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