What does Mobile David Company do?

Mobile agency company means that mobile companies employ some three-party companies to complete some work, mostly base stations, lines and so on. To put it simply, the main job is to run to the base station and deal with the fault of the base station. Including carrier frequency, cabinet, antenna feed and so on.

David's business is divided into many aspects, including base station David, repeater David, computer room David, transmission David and optical cable line David. According to the requirements of Mobile, David Company should conduct patrol inspection on time, issue patrol inspection report, and eliminate faults. According to the content of maintenance, the mobile company pays a part of the maintenance fee to David company every month.

Expand the scope of data generation:

1.MAN customer information service access layer:

Information private line access (Internet, SMS platform, GPRS network, MMS platform, voice network, etc. Business and information private line networking (such as circuit rental, VPN virtual private network, etc.). ) business. The maintenance interface included in David refers to the equipment, links and other network elements between the data main equipment or transmission equipment outlet port of the business node computer room of the mobile company and the network inlet port of the user terminal.

2.MDCN network access layer (below the auxiliary node):

DCN refers to the data communication network, and the maintenance interface included in the generation maintenance refers to various network elements such as devices and links between the outlet port of the secondary node of MDCN network and the inlet port of the network access equipment of the business hall.