Mobile Switching Office(MSO)

Mobile Switching Office(MSO)	Rack Composition
	Cable Feed Through
	NTS
	CWR Relay Panel A
	LAN Switch A 1
	LAN Switch A 2
	Core/Gateway Router
	GGSN
	Border Router
	Red CoreGateway Router
	Echo Canceller A
	VPN Router A
	Combined NM/ZC
	Redundant ZC
	Voice Logger - Tape 2
	Voice Logger - Tape 1
	Voice Logger / KMF
	Authentication Center
	Packet Data Router
	Radio Network Gateway
	Shot Data Router
	MTIG A

MSO Composition

RADIO DISPATCH

Zone Controller/Network Mameger

Zone Controller and Network Management that are composed of call control processor, Communication controller, and user DB provide interface to call process, communication routing, server systems.

Image	Function
	-Connect to serve system via IP LAN -Create signal and manage call management signal -Share wireless interface resource control -Implement terminal registration -Manage mobile station -Share and manage resource between telephone and gateway -Provide information of data gateway location -Check system error and security management -Manage terminal system

User Data Server

User Data Server, connected to main control and base system, manages user status

Image	Function
	User Management -System management and registration -Control security group registration/ management -Register terminals and communication groups

ATR Server

ATR Server receive traffic information from main control system and creates ATIA packet. This broadcasting ATIA stream will be used in each servers in network condition.

Image	Function
	-ATR Server receive traffic information from main control system and creates ATIA packet. This broadcasting ATIA stream will be used in each servers in network condition.

Shot Data Router

Short Data Router serves SDS data transmittance

Image	Function
	-Implement gateway working role between radios

Packet data Touter

Packet data Router supports IP packet data transmittance

Image	Function
	-Implement packet data gateway working role -Provide RNG connection service

RNG(Radio Network Gateway)

RNG implements traffic management In/Outbound interface between base station and packet data router (PDR)

Image	Function
	-Implement radio network gateway working role. -Provide PDG connection service.

RNG(Radio Network Gateway)

RNG implements traffic management In/Outbound interface between base station and packet data router (PDR)

Image	Function
	-Implement terminal approval

Voice Logger/KVM.

Voice Logger/ KMF

Image	Function
	-Implement individual and group call recording -Implement recording calling types

GGNS

GGNS implements routing solution to provide data routes.

Image	Function
	Short message data gateway, packet data gateway routing.

CWR Patch Panel

CWR Patch Panel, duplex equipment of core and exit router connected, switches E1 via remote site

Image	Function
	Provide duplex connection of core and exit router.

NTP Server

NTS Server provides UTC time and date in IP system

Image	Function
	Provide UTC time and date in IP system

Border Router

Border Router uses Motorola ST600 series, it provides 3 LAN interfaces.

Image	Function
	-Provide each routing service through 3 LAN interfaces. -Include exterior network E1 module

LAN Switch

Core LAN Switch handles with MultiCast traffic and makes duplex Ethernet trunk line.

Image	Function
HP 2610-48		-Handle with multicast traffic -Support duplex via gigabit Ethernet trunk line

Core/Gateway Router

Core router implement traffic management between remote base station and control center.

Image	Function
	-Implement traffic routing between remote base station and control center. -2 units routers provide duplex via frame-relay PVC and base station -Includes E1 module to connect base station

MTIG

MTIG offers interface function for radio user and local telephone call

Image	Function
	-Use for connection between private and public telephone network -Provide voice card for switching to Dimetra IP system from PCM

Echo Canceller

Core gateway reduces echo sound occurrence for user’s listening.

Image	Function
	Reduce hauling and echo sound occurrence via PABX

System Management Terminal

System Management Terminal implements user’s GUI to control overall system

Image	Function
	Control error, composition, performance, security management via terminal

Recording replay terminal

Recording replay terminal, connected recording server, searches and manages recording data.

Image	Function
	-Manage error, composition, performance, and security. -Print event report - Replay recording file via recording server connection - Control via terminal

RADIO DISPATCH

- SUPERVISORY CONTROL AND MONITORING
- MAINTENANCE TESTING AND PROGRAMMING

Radio dispatch, connected to main control equipment, manages overall calls.

Image	Function
	- Implement individual and group calls -Provide priority -Implement intercept function -Switch to another call dispatcher -Multi group and patch call -Switch to speaker audio (Select speaker to group call) -Check emergency call and emergency terminal - Prohibit or allow dispatcher - Switch group resource - Implement priority classification - Announcement and emergency call