电话网路 meaning in Chinese

telephone network

Customers still need a contract with a service provider to obtain access to the network and then to the public switched - telephone network
使用者仍然得和业者签订合约才能使用网路和公众交换式电话网路。
This technique marked a break from the traditional approach , used in telephone networks , of dedicating a static circuit to each connection
电话网路所使用的传统方法，每一次接通都必须占用一条线路，但分封交换技术完全摆脱了这种束缚。