初步探讨异构网络下DTMF信号的传送机制  

Preliminary discussion on the transmission mechanism of DTMF signal in heterogeneous network

作　　者：汪平阳 WANG Ping-yang(China Unicom Hefei Branch Operation and Maintenance Department,Hefei Anhui 230000,China)

机构地区：[1]中国联通合肥分公司运行维护部,安徽合肥230000

出　　处：《科技视界》2018年第14期42-44,共3页Science & Technology Vision

摘　　要：本文通过对两起典型案例的分析解决,初步探讨了当前的核心异构网络下DTMF的传递方式。本文研究了在PCM和IP两种传输方式对接的情况下,带内、外信号的协商方式,完成了不同场景下的呼叫测试验证,并初步探讨了不同类型的核心网对接对DTMF信号传送的影响。Through two typical cases analysis,the transfer mode of DTMF in core heterogeneous network is discussed in this paper.In this paper,the negotiation mode of in-band and out-band signals is studied when PCM and IP are connected,and the call test verification in different situations is completed.And the effect of different types of core network docking on DTMF signal transmission is preliminarily discussed.

关 键 词：DTMF 带外协商 PCM 核心异构网络 

分 类 号：TN929.5[电子电信—通信与信息系统]