Glossary of Definitions

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Technology Marketing Corporation is pleased to welcome you to the launch of the TMCnet Tech Glossary, an innovative learning tool offering a deeper understanding of the new technologies relevant to TMCnet visitors. In cooperation with our partner TECHtionary, TMCnet Tech Glossary provides a simple way to sort through the jargon by providing instantaneous definitions in an online, contextual manner that is easy to understand. It has become increasingly critical to stay ahead of emerging technologies and TMCnet Tech Glossary provides a vehicle to bring readers up to speed in the evolving high tech market.

Address Resolution Protocol (ARP)	Advanced Encryption Standard (AES)
Advanced Mezzanine Card (AdvancedMC, AMC)	Advanced Telecom Computing Architecture (AdvancedTCA, ATCA)
Application Programming Interface (API)	Application Server (A/S)
Asynchronous Transfer Mode (ATM)	Automated Call Distribution (ACD)

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Backhaul	Backplane (bus)
Base Station (BTS)	Blade Server
Bluetooth	Border Gateway Protocol (BGP)
Broadband over Power Lines (BPL)	Broadband Passive Optical Network (BPON)

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Call Session Control Function (CSCF)	Call Signaling
Call Termination	Cellular handover
Central Office (CO)	Central Processing Unit (CPU)
Centrex	Circuit switching
Code Division Multiple Access (CDMA)	Codec
Co-location (COLO)	Common Gateway Interface (CGI)
Competitive Local Exchange Carrier (CLEC)	Compression
Computer Telephony Integration (CTI)

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Data Over Cable Service Interface Specification (DOCSIS)	Data Packet
Denial of service (DoS)	Dense Wave Division Multiplexing (DWDM)
Digital Subscriber Line (DSL)	Digital Video Broadcast (DVB)
Direct Broadcast Satellite (DBS)	Domain Name Server (DNS)
DSL Access Multiplexer (DSLAM)	Dual-mode
Dynamic Host Configuration Protocol (DHCP)

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Echo cancellation	Electronic Numbering (ENUM)
Enhanced 911 services (e911)	Ethernet
Ethernet Passive Optical Network (EPON)	Extensible Markup Language (XML)
Extranet

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Femtocell	Fiber Optics
Fiber-to-the-curb/home/node (FTTx)	Fibre Channel
Firewall	Frame Relay
Frequency	Frequency Division Multiplexing (FDMA)

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General Packet Radio Service (GPRS)	Gigabit Passive Optical Network (GPON)
Global Standard for Mobile (GSM)

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H.323 (H.323)	High Speed Downlink Packet Access (HSDPA)
Hosted VoIP	Hotspot
Hypertext Markup Language (HTML)	Hypertext Transfer Protocol (HTTP)

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Incumbent Local Exchange Carrier (ILEC)	Institute of Electrical and Electronic Engineers (IEEE)
Integrated Services Digital Network (ISDN)	Interactive Voice Response (IVR)
Internet Protocol (IP)	Internet Protocol Television (IPTV)
Intranet	IP Centrex
IP Multimedia Subsystem (IMS)	IP Security (IPSec)
IP version 6 (IPv6)

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Lightweight Directory Access (LDAP)	Local Area Network (LAN)
Local Loop	Local Number Portability (LNP)

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Media Access Control (MAC)	Media Gateway
Media Gateway Control Protocol (MGCP)	MicroTCA (MicroTCA)
Middleware	Mobile Switching Center (MSC)
Mobile Virtual Network Operator (MVNO)	Multicasting
Multiple Input Multiple Output (MIMO)	Multi-Protocol Label Switching (MPLS)

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Network Address Translation (NAT)

Next-Generation Network (NGN)

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Open Systems Interconnection (OSI)

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Private Branch Exchange (PBX)	Proxy Server
Public Switched Telephone Network (PSTN)

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Quality of Service (QoS)

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Real Time Transport Protocol (RTP)	Roaming
Routing

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Service Level Agreement (SLA)	Session Border Controller (SBC)
Session Initiation Protocol (SIP)	Signaling System 7 (SS7)
SIP Proxy	SIP Trunking
Softswitch	Subnet Mask
Synchronous Optical NETworks (SONET)

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Third Generation (3G)	Time Division Multiplexing (TDM)
Total Cost of Ownership (TCO)	Transmission Control Protocol (TCP)
Transmission Level 1 (T1)	Transmission Level 3 (T3)
Triple Play

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Ultra-Wide Band (UWB)	Unbundled Network Element (UNE)
Unicasting	Unified Messaging
Universal Mobile Telecommunications System (UMTS)	Unlicensed Mobile Access (UMA)
User Datagram Protocol (UDP)

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Video Streaming	Virtual Private Network (VPN)
Virtualization	Voice Encoding
Voice over IP (VoIP)	Voice over WLAN (VoWLAN, Wi-Fi Telephony)
Voice Peering Fabric (VPF)	VoIP Firewall
VoIP Gateway	VoIP Proxy

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Wide Area Network (WAN)	Wideband Code Division Multiple Access (WCDMA)
Wired Equivalent Privacy (WEP)	Wireless Applications Protocol (WAP)
Wireless Fidelity (WiFi)	Wireless Local Area Network (WLAN)
Worldwide Interoperability for Microwave Access (WiMAX)

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