四川电力行政交换网全网发送主叫号码的实现

Realization of the calling number sending in Sichuan power communication exchange network

四川电力通信行政交换网大部分交换节点之间采用的是EM+DTMF的随路信令,信令中没有包含发送主叫号码的协议,在充分利用现有网络资源的条件下,不改变信令方式,通过调整全网的各交换节点数据,实现全网的主叫号码发送和显示。文章详细介绍了实现全网主叫号码发送、接收和显示的技术方案,该方案已成功实施于四川电力通信行政交换网。

Most of switching nodes in Sichuan power communication exchange network adopts EM ＋ DTMF signaling which carries no calling number. By adjusting the switching nodes without changing the signal mode, the calling number can be transmitted and displayed. In this paper, a detailed introduction is made on the technical scheme of the transmission, receiving and display of call number in Sichuan power communication exchange network.