telephone network

Introduction
This is a formal report that contains two parts. In part one it is to describe 4 types of telephone network services with their features and comparative costs and in part two there are 4 types of services that I need to consider when a business/corporation would use each service in particular situation.

Terms of Reference
In part one I gave an fully explain for each telephone network service such as data transmission speed and how does it cost.
In part two I gave an example and two reasons for when a business/corporation would use a certain service.









Table of Contents:
Introduction 1
Terms of Reference 1
Table of Contents 2
1. Part one 3
1.1 Lease line 3
1.2 Value Added Network Facilities (VAN) 3
1.3 P...