GMSC Gateway Mobile Switching Center 關(guān)口移動(dòng)交換中心

GSM Global System for Mobile Communications 全球移動(dòng)通信系統(tǒng)

GT Global Title 全局碼

GUI Graphic User Interface 圖形用戶界面

HBA Hardware failure oriented group Blocking-Acknowledgement message 面向硬件故障的群閉塞證實(shí)消息

HGB Hardware failure oriented Group Blocking message 面向硬件故障的群閉塞消息

HGU Hardware failure oriented Group Unblocking message 面向硬件故障的群解除閉塞消息

HLR Home Location Register 歸屬位置寄存器

HUA Hardware failure oriented group Unblocking-Acknowledgement message 面向硬件故障的群解除閉塞證實(shí)消息

HW High Way 高速信號(hào)線

IEC International Electrotechnical Commission 國際電工委員會(huì)

IMSI International Mobile Subscriber Identity 國際移動(dòng)用戶標(biāo)識(shí)

IP Internet Protocol 網(wǎng)際協(xié)議

IP Intelligent Peripherals 智能外設(shè)

ISUP ISDN User Part ISDN用戶部分

ITU-T ITU Telecommunication Standardization Sector 國際電信聯(lián)盟-電信標(biāo)準(zhǔn)部

LAN Local Area Network 局域網(wǎng)

LAN Switch Local Area Network Switch 以太網(wǎng)交換機(jī)

LSSU Link Status Signal Unit 鏈路狀態(tài)信令單元

MAP Mobile Application Part 移動(dòng)應(yīng)用部分

MBA Maintenance oriented group Blocking-Acknowledgement message 面向維護(hù)的群閉塞證實(shí)消息

MGB Maintenance oriented Group Blocking message 面向維護(hù)的群閉塞消息

MGU Maintenance oriented Group Unblocking message 面向維護(hù)的群解除閉塞消息

MSC Mobile Switching Centre 移動(dòng)交換中心

MSU Message Signal Unit 消息信令單元

MTP Message Transfer Part 消息傳遞部分

MTBF Mean Time Between Failure 平均故障間隔時(shí)間

MTTR Mean Time To Repair 平均修復(fù)時(shí)間

MUA Maintenance oriented group Unblocking-Acknowledgement message 面向維護(hù)的群解除閉塞證實(shí)消息

NEBS Network Equipment Building System 網(wǎng)絡(luò)設(shè)備制造系統(tǒng)

OAM Operations, Administration and Maintenance 操作、管理與維護(hù)

OMAP Operation and Maintenance Application Part 操作維護(hù)應(yīng)用部分

OPC Origination Point Code 源信令點(diǎn)編碼

PPS PrePaid Service 預(yù)付費(fèi)業(yè)務(wù)

PSTN Public Switched Telephone Network 公用電話交換網(wǎng)

SBA Software generated group Blocking-Acknowledgement message 軟件產(chǎn)生的群閉塞證實(shí)消息

SCCP Signalling Connection Control Part 信令連接控制部分

SCMG SCCP Management SCCP管理

SCP Service Control Point 業(yè)務(wù)控制點(diǎn)

SGB Software generated Group Blocking message 軟件產(chǎn)生的群閉塞消息

SGU Software generated Group Unblocking message 軟件產(chǎn)生的群解除閉塞消息

SMSC Short Message Service Center 短消息業(yè)務(wù)中心

SP Signalling Point 信令點(diǎn)

SSP Service Switching Point 業(yè)務(wù)交換點(diǎn)

STP Signalling Transfer Point 信令轉(zhuǎn)接點(diǎn)

SUA Software generated group Unblocking-Acknowledgement message 軟件產(chǎn)生的群解除閉塞證實(shí)消息

TCAP Transaction Capability Application Part 事務(wù)處理能力應(yīng)用部分

TDR Transaction Detail Record 事務(wù)詳細(xì)記錄

TUP Telephone User Part（SS7） 電話用戶部分

UDTS Unit DaTa Service 單位數(shù)據(jù)業(yè)務(wù)

UL Underwriters Laboratories 承諾實(shí)驗(yàn)室（美國）

VLR Visitor Location Register 拜訪位置寄存器

WAN Wide Area Network 廣域網(wǎng)

WS Work Station 工作站

XUDTS Enhanced Unit DaTa Service 增強(qiáng)的單位數(shù)據(jù)業(yè)務(wù)