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电信网就是由电信端点、节点和传输链路相互连接、实现两个以上电信端点间传输的通信体系,它是包括终端设备、传输设备、交换设备和网络技术的综合系统,旨在向用户提供各种电信服务。电信网若按业务性质、服务地域、服务对象、交换方式、信号形式和传递方式又有多种分类和不同说法,但总之,实现广泛的无处不在的通信,离不开网络。有人说,现在又是网络时代,计算机以网络为中心,通信
Telecommunication network is a communication system that connects endpoints, nodes and transmission links of telecommunication to realize the transmission between two or more telecommunications endpoints. It is a comprehensive system including terminal equipment, transmission equipment, switching equipment and network technology, and is intended to provide users with Various telecommunications services. There are many kinds of categorization and different opinions according to business nature, service area, service object, exchange mode, signal form and transmission mode of telecom network. However, in short, it is inseparable from the network to realize widespread ubiquitous communication. Some people say that now is the Internet age, the computer network-centric communication