112 Zte-a200 Background Measurement System Design And Implementation

Softswitch is a kind of important technology in Next Generation Network (NGN). ZTE Softswitch pocesses network element devices such as ZXSSIO ssl, ZXSSIO A200 etc. Among these, ZXSSIO A200 is access device, responsible for connecting analog Z interface user into IP network. Its OMM supplies such functions as alarm, diagnosing, protocol tracing, etc.In my paper, we deal with research and development of rear-ground 112 testing system based on AG200. It is set up on the structure of Client/Server , developed in Delphi, one of OOP languages. The client receives user' s command, then sending to the server by communicating module. The server has 2 threads, waiting for manual test commands and routine test commands. For manual test, it sends them to AG200 in time; for routine test, the server writes them into database (Database Desktop), timingly examining database.