trunk interface meaning in English

中继线接口

Then , the structure of telephone gateway interface and trunk interface are introduced and their functions in telephone gateway are analysed by which a telephone gateway scheme is designed
并着重介绍电话网关接口单元的构成和中继线的概念,分析它们以及语音处理单元在电话网关中的作用,以研究实现电话网关的系统方案。
However , compared with developed nations , we still have large room for development in voice service . thus , it is of realistic significance for us to transform the legacy switches by replacing the 2 mbits trunk interfaces with stm - 1 trunk interfaces ( 155 mbits ) in the legacy circuit - switched switches
17亿门，但比起发达国家的水平，我国的话音业务仍然有很大的发展空间。因此对传统交换机的改造仍具有现实意义。在传统的电路交换机中用stm - 1 （ 155mbits ）中继接口取代2mbits中继接口，意义重大。