Dictionary: Wide Area Networks WAN

TITLE

Table of Contents

1

1 channel + 1 channel (1+1)

1:n redundancy (1:n)

10 Gigabit Ethernet passive optical network

100 Gigabit Ethernet (100GbE)

12TR7 protocol

1822 protocol

1TR6 protocol

2

2.5 generation (2.5G)

3

3.5 generation (3.5G)

3.9 generation (3.9G)

4

4G layered model

A

A network

ABCD signalling

abstract test suite (ATS)

access grant channel (AGCH)

access link control application part (ALCAP)

access list

access manager (AM)

access media gateway (AMG)

access multiplexer

access network (AN)

access node (AN)

access point (AP)

access point control protocol (APCP)

access point name (APN)

access router (AR)

access server

acknowledgment channel

acknowledgment principle

acoustic coupler

ACR decrease time factor (ADTF)

active optical network (AON)

adapter

adaptive gain control (AGC)

adaptive weighted fair queuing (AWFQ)

add/drop multiplexer (ADM)

additional packet mode (APM)

additive increase rate (AIR)

address complete message (ACM)

address mapping

address resolution protocol (ARP)

ad-hoc network

adjacent point code (APC)

administration function (ADMF)

administrative unit (AU)

ADSL frame

ADSL transceiver unit (ATU)

ADSL2+

advanced intelligent network (AIN)

advanced mobile phone system (AMPS)

advanced mobile telephone system (AMTS)

advice of charge (AoC)

air interface (AI)

airtime

alarm indication signal (AIS)

all area network (AAN)

all IP network (AIPN)

all optical network (AON)

all paths explorer frame (APE)

all routes explorer (ARE)

allowed cell rate (ACR)

alphamosaic

alternate line service (ALS)

alternate routing

always on

always on/dynamic ISDN (AO/DI)

American registry for Internet numbers (ARIN)

amplified spontaneous emission (ASE)

anonymous FTP (AFTP)

answer message (ANM)

answer mode

AoC at end of call (AoCE)

AoC at start of call (AoCS)

AoC during call (AoCD)

applet

AppleTalk update-based routing protocol (AURP)

appliance

application control access protocol (ACAP)

application layer gateway (ALG)

application part (AP)

area communication controller (ACC)

area number

ARPA Internet

arrayed waveguide grating (AWG)

Asian Pacific network information center (APNIC)

associated control channel (ACCH)

asymmetric digital subscriber line (ADSL)

asynchronous modem eliminator (AME)

asynchronous transfer mode (ATM)

AT command

ATM adaption layer (AAL)

ATM address

ATM attached host functional group (AHFG)

ATM cell

ATM data service unit (ADSU)

ATM forum

ATM inverse multiplexer (AIM)

ATM layer (ATL)

ATM layer model

ATM over passive optical network (APON)

ATM subscriber access multiplexer (ASAM)

ATM switching unit

ATM transmission speed

attribute registration authority (ARA)

audio message interchange specification, analog (AMIS-A)

audio messaging

audio/visual multimedia service (AMS)

authenticated post office protocol (APOP)

authentication center (AC)

authentification center (AUC)

authentification header (AH)

auto-dial device

automatic alternative routing (AAR)

automatic baud rate (ABR)

automatic call back (ACB)

automatic fallback (AFB)

automatic network routing (ANR)

automatic power control (APC)

automatic protection switching (APS)

automatic route selection (ARS)

automatic spanning tree (AST)

automatic swap

automatically switched optical network (ASON)

automatically switched transport network (ASTN)

autonomous system (AS)

autonomous system boundary router (ASBR)

autonomous system number field

auto-sensing

available bit rate (ABR)

avalanche photo diode (APD)

B

B channel

B network

backhaul

backward channel

backward explicit congestion notification (BECN)

backward learning

bandwidth allocation protocol (BAP)

bandwidth on demand (BoD)

bandwidth on demand interoperability group (BONDING)

base station (BS)

base station color code (BCC)

base station controller (BSC)

base station identity code (BSIC)

base station subsystem (BSS)

base station system application part (BSSAP)

base station system GPRS protocol (BSSGP)

base station system management application part (BSSMAP)

base transceiver station (BTS)

basic exchange radio telecommunications service (BERTS)

basic rate access (BRA)

basic rate interface (BRI)

basic service set (BSS)

bearer capability (BC)

bearer independent call control (BICC)

bearer mobile (Bm)

bearer service 24 (BS24)

bearer service 26 (BS26)

begin of message (BoM)

Bell labs layered space time (BLAST)

Bellman Ford algorithm

best path first (BPF)

bidirectional line switch ring (BLSR)

bifurcated routing

B-ISDN signalling

B-ISDN terminal adapter (B-TA)

bit interleaved parity (BIP)

bit rate management

black box

BlackBerry

booking

booster

border gateway multicast protocol (BGMP)

border gateway protocol (BGP)

branch exchange

branch out cable

bridge

bridge protocol data unit (BPDU)

bridge/router

broadband access

broadband connection oriented bearer (BCOB)

broadband fixed wireless access (BFWA)

broadband high layer information (BHLI)

broadband inter-carrier (BIC)

broadband inter-carrier interface (B-ICI)

broadband ISDN (B-ISDN)

broadband low layer information (B-LLI)

broadband network termination (B-NT)

broadband passive optical network (BPON)

broadband radio access network (BRAN)

broadband service node (BSN)

broadband terminal equipment (B-TE)

broadband wireless access (BWA)

broadcast and unknown server (BUS)

broadcast control channel (BCCH)

broadcast routing

bug proof

bundling

burst tolerance (BT)

busy hour call attempts (BHCA)

C

C network

C5 signalling (CCIT5)

cache array routing protocol (CARP)

call agent

call completion Internet busy (CCIB)

call completion on no reply (CCNR)

call control (CC)

call deflection (CD)

call detail record (CDR)

call forwarding busy (CFB)

call forwarding no reply (CFNR)

call forwarding unconditional (CFU)

call hold (CH)

call packet

call processing language (CPL)

call reference (CR)

call session control function (CSCF)

call transfer (CT)

call waiting (CW)

call waiting

call waiting Internet busy (CWIB)

callback

called party subaddress (CdS)

calling class

calling line identification (CLID)

calling line identification (CLI)

calling line identification on call waiting (CIDCW)

calling line identification presentation (CLIP)

calling line identification restriction (CLIR)

calling party number (CgPNo)

calling party pays (CPP)

calling party subaddress (CgS)

capability set (CS)

CAPI V2.0 interface

care of address

carrier

carrier detect (CD)

carrier Ethernet (CaE)

carrier Ethernet transport (CET)

carrier frequency system

carrier to noise ratio (CNR)

CCITT high level language (CHILL)

CDMA2000

cdmaOne

cell broadcast (CB)

cell broadcast center (CBC)

cell broadcast entity (CBE)

cell delay variation (CDV)

cell delay variation tolerance (CDVT)

cell identification (CI)

cell in flight (CIF)

cell interarrival variation (CIV)

cell loss priority (CLP)

cell loss ratio (CLR)

cell rate margin (CRM)

cell relay

cell relay service (CRS)

cell switching

cell transfer delay (CTD)

cellphone

cellular digital packet data (CDPD)

cellular radio

cellular radio network (CRN)

central communication processor (CCP)

central exchange

central office (CO)

central services organization (CSO)

change over

channel definition format (CDF)

channel separation

channel service unit (CSU)

channel subdivision

chekker

chips per second (c/s)

choke packet

circuit emulation service (CES)

circuit emulation services over Ethernet (CESoE)

circuit group blocking (CGB)

circuit group unblocking (CGU)

circuit indentification code (CIC)

circuit layer gateway (CLG)

circuit switched data (CSD)

circuit switched network

circuit switching (CS)

Cisco discovery protocol (CDP)

Cisco group management protocol (CGMP)

citizen band (CB)

city call

class 4 switch

class 5 switch

class based weighted fair queuing (CBWFQ)

class of service (CoS)

class-based queuing (CBQ)

classical IP over ATM (CLIP)

classless interdomain routing (CIDR)

clear collision

clearing

clearinghouse for networked information discovery and retrieval (CNIDR)

client

cluster

cluster controller (CC)

coarse wavelength division multiplex (CWDM)

code division multiple access (CDMA)

code division multiple access/frequency diversity duplex (CDMA/FDD)

coded orthogonal frequency division multiplex (COFDM)

coherency

cold swap

collocation

collocation facility

combiner

command/response (C/R)

committed access rate (CAR)

committed burst (Bc)

committed information rate (CIR)

common air interface (CAI)

common application programming interface (CAPI)

common channel interference

common channel interoffice signalling (CCIS)

common character signalling channel

common content inspection (CCI)

common control channel (CCCH)

common desktop environment (CDE)

common Internet file system (CIFS)

common part convergence sublayer (CPCS)

communication network

communication server

companding

complete sequence number PDU (CSNP)

completion of call to busy subscriber (CCBS)

compressed real time protocol (CRTP)

compressed SLIP (CSLIP)

concentrator (CON)

conference call (CONF)

congestion avoidance (CA)

congestion indicator (CI)

connect message (CON)

connected line identification presentation (COLP)

connected line identification restriction (COLR)

connection

connection admission control (CAC)

connection oriented convergence function (COCF)

connection oriented data (COD)

connection related function (CRF)

connectionless broadband data service (CBDS)

connectionless network protocol (CLNP)

connectionless server (CLS)

connectionless transport protocol (CLTP)

consolidated link layer management (CLLM)

consolidation

constant bit rate (CBR)

constraint routing LDP (CR-LDP)

consumer digital subscriber line (CDSL)

content delivery network (CDN)

context based access control (CBAC)

context sensor (CS)

continuation of message (CoM)

continuity check

control channel (CCH)

control plane

controller

convergence

convergence platform

convergence sublayer (CS)

convergent network architecture

cookie

copper twin wire

cordless communication network (CCN)

cordless telephony (CT)

core based tree (CBT)

core network (CN)

core router

CorNet-IP

corporate GSM

counter mode with CBC-MAC protocol (CCMP)

country code (CC)

cross connection (CC)

cross gain modulation (XGM)

cross phase modulation (XPM)

crossbar switch

CT0

CT1

CT2

CT3

custom local area signalling service (CLASS)

customer edge (CE)

customer gateway (CGW)

customer network management (CNM)

customer premises equipment (CPE)

customer service control (CSC)

cyclic redundancy checksum (CRC)

D

D channel

D channel access control

D channel protocol

D network

D1 network

D2 network

dark fiber

data carrier detect (DCD)

data communication equipment (DCE)

data exchange (DX)

data exchange interface (DXI)

data link channel identifier (DLCI)

data link switching (DLSw)

data mobile (Dm)

data network identification code (DNIC)

data service adapter (DSA)

data set ready (DSR)

data station

data switching exchange (DSE)

data switching system

data terminal equipment (DTE)

data terminal ready (DTR)

datagram

datagram transport protocol (DTP)

DCF77

dead spot

deadlock

DECT multimedia access profile (DMAP)

DECT over IP (DECToIP)

DECT packet radio service (DPRS)

DECT standard

dedicated control channel (DCCH)

dedicated mode

dedicated short range communication (DSRC)

deficit-weighted round robin queuing (DWRR)

delay (DEL)

delivery confirmation bit (D-bit)

delivery receipt

delivery status notification (DSN)

dense wavelength division multiplexing (DWDM)

designated subnet bandwidth manager (DSBM)

destination address (DA)

destination end station (DES)

detect and avoid (DAA)

device change

dial on demand routing (DDR)

dial VPN services (DVS)

dialed number identification service (DNIS)

dial-in node

dialling tone

differential group delay (DGD)

differentiated services (DiffServ)

digital access and crossconnect system (DACS)

digital advanced mobile phone system (D-AMPS)

digital cellular system 1800 MHz (DCS 1800)

digital circuit multiplication equipment (DCME)

digital cordless telephony (DCT)

digital crossconnect (DXC)

digital crossconnect system (DCS)

digital enhanced cordless telecommunications (DECT)

digital inter relay communication (DIRC)

digital multiplexed interface (DMI)

digital short range radio (DSRR)

digital signal (DS)

digital simultaneous voice and data (DSVD)

digital subscriber line (DSL)

digital subscriber line access multiplexer (DSLAM)

digital subscriber system no. 1 (DSS1)

Dijkstra algorithm

direct dialing in (DDI)

direct distance dialling (DDD)

direct inward dialing (DID)

direct inward system access (DISA)

direct mode operation (DMO)

direct sequence UWB (DS-UWB)

direct transfer application part (DTAP)

directory operational binding management protocol (DOP)

directory service (DS)

directory system agent (DSA)

directory user agent (DUA)

discard elegibility (DE)

disconnect (DISC)

discontinuous transmission (DTX)

discrete multi tone (DMT)

dispatcher station (DST)

distance vector algorithm (DVA)

distance vector multicast routing protocol (DVMRP)

distinguished name (DN)

distributed feedback laser (DFB)

distributed functional plane (DFP)

distributed queue dual bus (DQDB)

distributed sample scrambler (DSS)

distributed service logic (DSL)

diversity

DLCI or DL-core control indicator bit (DC)

document transfer and manipulation (DTAM)

domain

domain keys identified mail (DKIM)

domain name system security extension (DNSSEC)

downstream

DQDB header

dual band mobile phone

dual mode mobile phone

dual rate mobile phone

dual tone multi frequency (DTMF)

duplex gap

dynamic channel allocation (DCA)

dynamic host configuration protocol (DHCP)

dynamic network address translation (DNAT)

dynamic packet transport (DPT)

dynamic routing

dynamic synchronous transfer mode (DTM)

dynamic wavelength slicing (DWS)

E

E band

e channel

E network

E/O converter

E1 line (E1)

E1 network

E164

E3 line (E3)

early packet discard (EPD)

echo cancellation (EC)

edge device

edge gateway (EGW)

edge router (ER)

EFM architecture

egress

electro absorptions modulator (EA)

electronic call (eCall)

electronic dialing system

electronics industry association (EIA)

electro-optical modulator

E-mail waiting indication (EWI)

emergency call

emulated LAN (ELAN)

encapsulating security payload (ESP)

end acknowledgement PDU (ENDAK-PDU)

end of message (EoM)

end physical data unit (END-PDU)

end system identifier (ESI)

enhanced data service for GSM evolution (EDGE)

enhanced full rate (EFR)

enhanced general packet radio service (EGPRS)

enhanced interior gateway routing protocol (EIGRP)

enhanced messaging service (EMS)

enhanced observed time difference (E-OTD)

enhanced specialized mobile radio (ESMR)

enhanced time division multiple access (E-TDMA)

enterprise defined messaging service (EDMS)

enterprise router

entrance facility

equalizer (EQ)

equipment identity register (EIR)

erbium doped fiber amplifier (EDFA)

Etherloop

Ethernet first mile over copper (EFMC)

Ethernet first mile using passive optical network (EFMP)

Ethernet first mile via fiber (EFMF)

Ethernet in the first mile (EFM)

Ethernet LAN service (E-LAN)

Ethernet line service (E-Line)

Ethernet over SDH (EoSDH)

Ethernet over VDSL (EoVDSL)

Ethernet passive optical network (EPON)

Ethernet private line (EPL)

Ethernet to the business (ETTB)

Ethernet tree (E-Tree)

Ethernet virtual private line (EVPL)

Euro ISDN

EuroFile transfer (EFT)

European digital signal level (E)

European messaging

European radio messaging services (ERMES)

Eurosignal

EutelTRACS

evolution data optimized (EVDO)

excess burst size (Be)

excess information rate (EIR)

explicit congestion notification (ECN)

explicit forward congestion indication (EFCI)

explicit rate (ER)

extended data message (EDM)

extended Internet protocol (EIP)

extended service set (ESS)

extended service set ID (ESSID)

extended super frame (ESF)

exterior routing protocol (ERP)

external machine interface (EMI)

F

fabry perot laser (FPL)

facility accepted (FAA)

facility rejected (FRJ)

facility request (FAR)

fading

fail-over cluster

fair queuing (FQ)

fallback switch (FBS)

fall-forward

far end block error (FEBE)

far end receive failure (FERF)

far field communication (FFC)

fast ACCH (FACCH)

fast circuit switching (FCS)

fast packet keying (FPK)

fast packet multiplexing (FPM)

fast packet switching (FPS)

fastpath

fax modem

femtocell

fiber bragg grating (FBG)

fiber optic switch

fiber to the amplifier (FTTA)

fiber to the building (FTTB)

fiber to the cabinet (FTTCab)

fiber to the curb (FTTC)

fiber to the desk (FTTD)

fiber to the exchange (FTTEx)

fiber to the home (FTTH)

fiber to the loop (FTTL)

fiber to the office (FTTO)

fiber to the radio (FTTR)

fiber to the terminal (FTTT)

field replaceable unit (FRU)

file access data unit (FADU)

file server

file transfer service (FTS)

fill-in signal unit (FISU)

filtering bridge

finger protocol

firewall accelerator

first generation (1G)

first mile service provider

fixed connection

fixed header

fixed mobile convergence (FMC)

fixed mobile integration (FMI)

fixed mobile substitution (FMS)

flexible multiplexer (FMUX)

flooding

flow control

foreign agent (FA)

format prefix (FP)

forward error correction (FEC)

forward explicit congestion notification (FECN)

forwarding rate

Foundry standby router protocol (FSRP)

four wave mixing (FWM)

fourth generation (4G)

fractional T1 (FT-1)

fractional T3 (FT-3)

fragmentation

frame based UNI (FUNI)

frame mode bearer service (FMBS)

frame relay (FR)

frame relay access device (FRAD)

frame relay architecture

frame relay frame

frame relay traffic shaping (FRTS)

frame switching (FS)

free space optic (FSO)

freedom of mobile access (FOMA)

freephone (FPH)

frequency cell

frequency converter

frequency correction channel (FCCH)

frequency division duplex (FDD)

frequency division multiple access (FDMA)

frequency division multiple access/frequency diversity duplex (FDMA/FDD)

FTP server

full rate (FR)

full service access network (FSAN)

full service network (FSN)

future public land and mobile telecommunication system (FPLMTS)

G

G.709 header

G703

G704

G709

G711

G721

G722

G723

G726

G728

G729

gate controller (GC)

gatekeeper (GK)

gateway (GW)

gateway GPRS support node (GGSN)

gateway MSC (GMSC)

gateway protocol

gateway server

gateway to gateway protocol (GGP)

gaussian minimum shift keying (GMSK)

general format identifier (GFI)

general inter-ORB protocol (GIOP)

general mobile radio service (GMRS)

general packet radio service (GPRS)

generalized multi protocol label switching (GMPLS)

generic cell rate algorithm (GCRA)

generic connection admission control (GCAC)

generic flow control (GFC)

generic framing procedure (GFP)

generic routing encapsulation (GRE)

geographic scope (GS)

get nearest server (GNS)

gigabit IP router (GIPR)

gigabit PON (GPON)

gigabit router

gigabyte system network (GSN)

glass fiber network

global area network (GAN)

global automotive telematics standard (GATS)

global maritime distress and safety system (GMDSS)

global roam

global service point (GSP)

global system for mobile communications (GSM)

Gnutella protocol

GPRS network architecture

grooming

ground segment

group call

group of picture (GOP)

GSM connection

GSM for railways (GSM-R)

GSM frame

GSM network

GSM services

H

H channel

H.264 advanced video coding (H.264/AVC)

H235

H248

H323

half gateway

half rate (HR)

handover (HO)

handover number (HON)

hardware (HW)

harmonic and individual line plus noise (HILN)

harmonic vector excitation (HVXC)

header error control (HEC)

hello protocol

hierarchical routing

hierarchical weighted fair queuing (HWFQ)

high bitrate digital subscriber line (HDSL)

high capacity - spatial division multiple access (HC-SMDA)

high level data link control (HDLC)

high performance radio access (HIPERACCESS)

high performance radio metropolitan network (HIPERMAN)

high performance routing (HPR)

high speed circuit switched data (HSCSD)

high speed downlink packet access (HSDPA)

high speed packet access (HSPA)

high speed packet access plus (HSPA+)

high speed serial interface (HSSI)

high speed uplink packet access (HSUPA)

home agent (HA)

home location area (HLA)

home location register (HLR)

home public mobile network (HPMN)

honeycomb plan

hop

horizontal cabling

host controller interface (HCI)

host monitor protocol (HMP)

hot standby router protocol (HSRP)

hot swap

hybrid automatic repeat request (HARQ)

hybrid CWDM/DWDM

hybrid frequency division duplex (HFDD)

hybrid router

hyperchannel

hypertext caching protocol (HTCP)

hypertext time protocol (HTP)

hypertext transfer protocol (HTTP)

I

I mode

I seek you (ICQ)

iBurst

ICAP forum

ICMP router discovery protocol (IRDP)

identification code (IC)

idle state

IEEE 802.16e

IEEE 802.16m

IEEE 802.20

IEEE 802.22

IEEE 802.6

improved voice over IP (IVoIP)

inband signalling

incumbent local exchange carrier (ILEC)

indefeasible right of use (IRU)

indicator control message (ICM)

individual address block (IAB)

industrial, scientific, and medical (ISM)

infocall

information appliance

ingress

initial address message (IAM)

injection laser diode (ILD)

instant messaging (IM)

instant messaging and presence protocol (IMPP)

integrated access device (IAD)

integrated IS-IS

integrated mobile broadband system (IBMS)

integrated remote error monitoring (IREM)

integrated service unit (ISU)

integrated services (IntServ)

integrated services digital network (ISDN)

integrated services LAN (ISLAN)

integrated services over specific link layer (ISSLL)

integrated services private branch exchange (ISPBX)

integrated voice/data terminal (IVDT)

intelligent edge

intelligent energy management (IEM)

intelligent network (IN)

intelligent network application protocol (INAP)

intelligent network conceptional model (INCM)

intelligent node for basic access (INOBA)

intelligent optical terminal (IOT)

intelligent peripheral interface (IPI)

inter system interface (ISI)

interactive multimedia association (IMA)

interdomain policy routing (IDPR)

interdomain routing protocol (IDRP)

interexchange carrier (IXC)

interface message processor (IMP)

interface muiltiplexer

interim interswitch signalling protocol (IISP)

interim local management interface (ILMI)

interior gateway protocol (IGP)

interior gateway routing protocol (IGRP)

intermediate session routing (ISR)

intermediate system (IS)

intermediate system to intermediate system protocol (IS-IS)

internal intercept function (IIF)

internal organization of the network layer (IONL)

international access code

international domain name system (i-DNS)

international mobile equipment identity (IMEI)

international mobile subscriber identity (IMSI)

international mobile telecommunications for the year 2000 (IMT)

international premium rate service (IPRS)

Internet appliance

Internet cache protocol (ICP)

Internet call waiting (ICW)

Internet connection sharing (ICS)

Internet content adaption protocol (ICAP)

Internet control message protocol (ICMP)

Internet file system (IFS)

Internet group management protocol (IGMP)

Internet high speed packet access (I-HSPA)

Internet inter-ORB protocol (IIOP)

Internet key exchange (IKE)

Internet message access protocol (IMAP)

Internet message support protocol (IMSP)

Internet name service

Internet printing protocol (IPP)

Internet protocol (IP)

Internet protocol control protocol (IPCP)

Internet protocol performance metric (IPPM)

Internet protocol version 4 (IPv4)

Internet protocol version 6 (IPv6)

Internet security

Internet small computer system interface over IP (iSCSI)

Internet streaming media alliance (ISMA)

Internet telephone service provider (ITSP)

internetwork address sub-group (IASG)

internetwork coordination functional group (ICFG)

internetwork packet exchange protocol (IPX)

internetworking

interoperability (IOP)

interpersonal messaging (IPM)

interpersonal messaging system (IPMS)

interworking function (IWF)

interworking unit (IWU)

inverse multiplexer

inverse multiplexing over ATM (IMA)

IP address

IP communication server

IP convergence

IP device control (IPDC)

IP distributed architecture (IPDA)

IP flow management protocol (IFMP)

IP header

IP multicast

IP multimedia service access node (IP-MSAN)

IP multimedia subsystem (IMS)

IP network

IP next generation (IPnG)

IP payload compression protocol (IPPCP)

IP routing

IP security option (IPSO)

IP security protocol (IPsec)

IP spoofing

IP telephony (IPTEL)

IP traceback

IRC pseudonym

IS-95

ISDN adapter card

ISDN address

ISDN connection type

ISDN consumer device

ISDN digital subsciber line (IDSL)

ISDN frame

ISDN interface

ISDN point to multipoint connection

ISDN reference point

ISDN user part (ISUP)

isochronous Ethernet (isoENET)

ITU grid

J

Java advanced intelligent network (JAIN)

L

L band

L2TP access concentrator (LAC)

label distribution protocol (LDP)

label edge router (LER)

label switch controller (LSC)

label switch router (LSR)

label switched path (LSP)

label switching

LAN emulation (LANE)

LAN emulation client (LEC)

LAN emulation client identifier (LECID)

LAN emulation configuration server (LECS)

LAN emulation network node interface (LNNI)

LAN emulation server (LES)

LAN emulation UNI (LUNI)

LAN-emulation address resolution protocol (LE_ARP)

laser diode (LD)

last mile

lawfull interception (LI)

layer 2 forwarding (L2F)

layer 2 security (L2Sec)

layer 2 tunneling protocol (L2TP)

layer 3 switch

layer 4 switch

layer 7 switch

leaf initiated join (LIJ)

leaky bucket (LB)

leased line

least cost routing (LCR)

light amplification by stimulated emission (Laser)

light emitting diode (LED)

lightweight directory access protocol (LDAP)

lightweight phone control protocol (LPCP)

limited distance modem (LDM)

line of sight (LOS)

line terminating equipment (LTE)

line termination (LT)

link access procedure (LAP)

link access procedure balanced (LAP B)

link access procedure D (LAP D)

link access protocol Bm (LAP-Bm)

link access protocol for Dm channel (LAP-Dm)

link access protocol for modems (LAP M)

link access protocol SDH (LAPS)

link capacity adjustment scheme (LCAS)

link control protocol (LCP)

link segment

link state advertisement (LSA)

link state algorithm (LSA)

link state protocol (LSP)

link station

link station (LS)

load balancing

local access data transport (LADT)

local area and transport area (LATA)

local bridge

local exchange (LEX)

local exchange carrier (LEC)

local exchange network

local line

local loop (LL)

local loop unbundling (LLUB)

local management interface (LMI)

local mobile subscriber identity (LMSI)

local multipoint distribution service (LMDS)

local service point (LSP)

locating

location area (LA)

location area identity (LAI)

location based service (LBS)

location management

location update (LUP)

logical channel identifier (LCI)

logical group node (LGN)

logical IP subnet (LIS)

logical link identifier (LLI)

long distance network

long haul (LH)

long haul network

long reach Ethernet (LRE)

long term evolution (LTE)

long term prediction (LTP)

loop avoidance

loss of cell (LOC)

loss of frame (LOF)

loss of payload (LOP)

loss of pointer (LOP)

loss of signal (LoS)

lossless predictive audio compression (LPAC)

low delay, code excited linear prediction (LD-CELP)

low latency queuing (LLQ)

low layer compatibility (LLC)

low mobile (Lm)

low power device (LPD)

lu interface

M

MAC address

MAC address translation (MAT)

MAC level bridge

macro radio cell

mail gateway

mail transfer agent (MTA)

main exchange (MX)

main station (MS)

malicious call identification (MCID)

managed Ethernet service (MES)

management data PDU (MD-PDU)

management domain (MD)

management interface (MI)

management plane

mapping

maritim radio

mark bit (M bit)

matrix switch

maximum burst size (MBS)

maximum cell delay variance (MCDV)

maximum cell loss ratio (MCLR)

maximum cell rate (MaxCR)

maximum cell transfer delay (MCTD)

maximum receive unit (MRU)

mean opinion score (MOS)

media converter

media device control protocol (MDCP)

media gateway (MGW)

media gateway control protocol (MEGACO)

media gateway control protocol (MGCP)

media gateway controller (MGC)

media independent handover service (MIHS)

media server

media terminal adapter (MTA)

mediation device (MD)

mediation switch

mesh access point (MAP)

message administration service element (MASE)

message code (MC)

message delivery service element (MDSE)

message disposition notification (MDN)

message handling system (MHS)

message identifier (MID)

message integrity check (MIC)

message oriented text interchange system (MOTIS)

message retrieval service element (MRSE)

message sequence chart (MSC)

message signal unit (MSU)

message store (MS)

message submission service element (MSSE)

message switching (MS)

message transfer agent (MTA)

message transfer agent entity (MTAE)

message transfer layer (MTL)

message transfer part (MTP)

message transfer service (MTS)

message transfer service element (MTSE)

message type (MT)

meta signalling

metric

metro Ethernet forum (MEF)

metro Ethernet network (MEN)

metropolitan area network (MAN)

metropolitan network

micro electromechanical mirror (MEM)

micro optical electromechanical mirror system (MOEMS)

micro radio cell

microcom networking protocol (MNP)

microring resonator

midband Ethernet

minimum cell rate (MCR)

mobile application part (MAP)

mobile broadband system (MBS)

mobile broadband wireless access (MBWA)

mobile business

mobile commerce

mobile communications

mobile computing

mobile data access system (MDAS)

mobile entertainment terminal (MET)

mobile entry

mobile execution environment (MExE)

mobile global title (MGT)

mobile IP (MIP)

mobile network code (MNC)

mobile node (MN)

mobile number portability (MNP)

mobile office

mobile office workstations using GSM links (Mowgli)

mobile originated call (MOC)

mobile phone telematics protocol (MPTP)

mobile PKI (mPKI)

mobile station (MS)

mobile station roaming number (MSRN)

mobile subscriber identification number (MSIN)

mobile subscriber ISDN (MSISDN)

mobile switching center (MSC)

mobile telephony

mobile terminal (MT)

mobile terminated call (MTC)

mobile user part (MUP)

mobile virtual network enabler (MVNE)

mobile virtual network operator (MVNO)

mobile WiMAX

mobility management (MM)

modulation and coding scheme (MCS)

modulator/demodulator (Modem)

modulo

multi frequency code (MFC)

multi frequency network (MFN)

multi point control protocol (MPCP)

multi service access node (MSAN)

multi service provisioning platform (MSPP)

multiband OFDM alliance (MBOA)

multiband orthogonal frequency division mutlplexing (MB-OFDM)

multicarrier modulation (MCM)

multicast address resolution server (MARS)

multicast backbone (MBONE)

multicast OSPF (MOSPF)

multi-cell network

multichannel multipoint distribution system (MMDS)

multilink (ML)

multilink point to point protocol (MPPP)

multilink PPP (ML-PPP)

multimedia access profile (MMAP)

multimedia messaging service (MMS)

multinumbering

multipath propagation

multiple channels per carrier (MCPC)

multiple input single output (MISO)

multiple subscriber number (MSN)

multiplex section overhead (MSOH)

multiplexer (MUX)

multipoint control unit (MCU)

multipoint controller (MC)

multipoint-to-multipoint communications

multiport bridge

multiport repeater

multi-protocol label switching (MPLS)

multiprotocol over ATM (MPoA)

multiprotocol router (MPR)

multipurpose Internet mail extensions (MIME)

multirate circuit switching (MRCS)

multirate ISDN

N

name server

narrow WDM (NWDM)

national color code (NCC)

national mobile subscriber identity (NMSI)

national number (NN)

native client interface architecture (NCIA)

navigation (NAV)

neighbour discovery protocol (NDP)

NetBIOS over TCP/IP (NBT)

NetWare link services protocol (NLSP)

network access and connectivity channel (NACCH)

network access station (NAS)

network address port translation (NAPT)

network address translation (NAT)

network address translator, protocol translator (NAT-PT)

network appliance

network areas

network based application recognition (NBAR)

network complex

network computer (NC)

network connection (NC)

network control protocol (NCP)

network element control protocol (NECP)

network element function (NEF)

network equipment building standard (NEBS)

network file system (NFS)

network identifier

network interface device (NID)

network layer reachability information (NLRI)

network management centre (NMC)

network node (NN)

network parameter control (NPC)

network protocol (NP)

network service access point (NSAP)

network subsystem (NSS)

network termination (NT)

network termination for basic access (NTBA)

network to network interface (NNI)

network user address (NUA)

network user identification (NUI)

next generation mobile network (NGMN)

next generation network (NGN)

next generation SDH (NG-SDH)

next hop resolution protocol (NHRP)

next hop server (NHS)

NGN architecture

node

node B adaption protocol (NBAP)

non facility associated signalling (NFAS)

non line of sight (NLOS)

nordic mobile telephone (NMT)

null modem/modem eliminator

number range

numerical

O

O band

O/E converter

OAM cell

object request broker (ORB)

one carrier evolution (1xEV)

one carrier radio transmission technology (1xRTT)

online transaction processing (OLTP)

open base station architecture initiative (OBSAI)

open mobile alliance (OMA)

open multimedia application platform (OMAP)

open network provision (ONP)

open settlement protocol (OSP)

open shortest path first (OSPF)

operating support system (OSS)

operation and maintenance subsystem (OMSS)

operation, administration, and maintenance (OAM)

optical access network (OAN)

optical add/drop multiplexer (OADM)

optical amplifier (OA)

optical budget

optical burst router (OBR)

optical carrier (OC)

optical channel (OCh)

optical code division multiplexing (OCDM)

optical crossconnect (OXC)

optical data unit (ODU)

optical distribution network (ODN)

optical domain service interconnect (ODSI)

optical filter

optical internetworking forum (OIF)

optical line termination (OLT)

optical multimode (OM)

optical multiplex section (OMS)

optical multiplexer (OMUX)

optical network (ON)

optical network element (ONE)

optical network node (ONN)

optical network unit (ONU)

optical payload tributary unit (OPTU)

optical payload virtual container (OPVC)

optical receiver

optical repeater (OR)

optical space division multiplexing (OSDM)

optical star coupler

optical supervisory channel (OSC)

optical switch

optical time division multiplexing (OTDM)

optical time domain reflectometry (OTDR)

optical transmission section (OTS)

optical transmitter

optical transport hierarchy (OTH)

optical transport network (OTN)

optical transport unit (OTU)

organizational unit (OU)

orthogonal frequency division multiplex (OFDM)

orthogonal frequency division multiplexing access (OFDMA)

OS class

outlet

over the air (OTA)

P

packet assembler/disassembler (PAD)

packet data protocol (PDP)

packet Internet grouper (PING)

packet loss rate (PLR)

packet over Sonet (PoS)

packet switching (PS)

packet switching exchange (PSE)

packetized ensemble protocol (PEP)

pager

pager cell

pager network

paging

paging channel (PCH)

paging control channel (PCCH)

parallel optical links (POL)

parallel sequence spread spectrum (PSSS)

partitional emulation program (PEP)

passive member address (PMA)

passive optical network (PON)

patching

path overhead (POH)

path terminal equipment (PTE)

path vector protocol

payload (Pl)

payload type (PT)

payload type identifier (PTI)

PC card phone

PCM technology

peer group (PG)

peer group leader (PGL)

peer to peer network (P2P)

perceptual analysis measurement system (PAMS)

perceptual evaluation of speech quality (PESQ)

perceptual speech quality measurement (PSQM)

per-hop behavior (PHB)

periodic location update (PLU)

permanent virtual circuit (PVC)

permanent virtual path connection (PVPC)

permit next increase (PNI)

personal access communications system (PACS)

personal communication service (PCS)

personal communications network (PCN)

personal digital cellular (PDC)

personal handyphone system (PHS)

personal unblocking key (PUK)

phase array (PHASAR)

phone jack

photonic network

physical channel

physical layer convergence protocol (PLCP)

physical medium (PM)

plain old telephone service (POTS)

plesiochronous digital hierarchy (PDH)

PNNI topology state packet (PTSP)

point to multipoint (P2MP)

point to point connection (P2P)

point to point tunneling protocol (PPTP)

pointer (PTR)

point-to-point protocol (PPP)

point-to-point radio system

policy based routing (PBR)

policy decision point (PDP)

policy enforcement point (PEP)

policy information base (PIB)

policy management

policy queuing (PQ)

port address translation (PAT)

portable media player (PMP)

portable unit (PU)

positioning determining technology (PDT)

positive intrinsic negative (PIN)

post office code standardisation advisory group (POCSAG)

post office protocol (POP)

PPP over Ethernet (PPPoE)

premium rate service (PRS)

primary rate interface (PRI)

primary reference clock (PRC)

primary station (P)

priority queuing (PQ)

privacy override information (POI)

private land mobile radio (PLMR)

private management domain (PRMD)

private mobile radio

private mobile radio (PMR)

private mobile radio, 446 (PMR 446)

private network to network interface (PNNI)

private numbering plan (PNP)

private signalling system 1 (PSS1)

programmable communication interface (PCI)

protocol converter (PCC)

protocol independent multicast (PIM)

provider

provider backbone transport (PBT)

provider edge (PE)

pseudowire (PW)

Psion

PSTN to Internet internetworking (PINT)

public data network (PDN)

public switched telephone network (PSTN)

public WLAN (PWLAN)

pulse dialling

push-to-talk over cellular (PoC)

push-to-talk over cellular (PTT)

Q

Q factor

Q.2931

Q-interface signalling protocol (QSIG)

qualifier bit (q-bit)

quality of service (QoS)

quantum flow control (QFC)

queuing

queuing delay (QD)

queuing management

R

radio access network (RAN)

radio access network application part (RANAP)

radio base station (RBS)

radio cell

radio data link access protocol (RD-LAP)

radio data transmission

radio deadspot

radio link control (RLC)

radio link protocol (RLP)

radio modem

radio network controller (RNC)

radio network gateway (RNG)

radio network termination (RNT)

radio regulatory technical advisory group (RRTAG)

radio relay system

radio resource control (RRC)

radio resource management (RRM)

radio subsystem (RSS)

radio zone

random early detection (RED)

random number (RAND)

rapid spanning tree protocol (RSTP)

rate adaptive digital subscriber line (RADSL)

real time messaging protocol (RTMP)

realtime control protocol (RTCP)

realtime streaming protocol (RTSP)

realtime transport protocol (RTP)

received signal strength indicator (RSSI)

receiver (Rx)

reception level (RXLEV)

reception quality (RXQUAL)

record keeping server (RKS)

reference point (RP)

regenerative repeater

regenerator (REG)

regenerator section overhead (RSOH)

registration

registration, admission and status (RAS)

regular pulse excitation (RPE)

relative distinguished name (RDN)

reliable transfer service element (RTSE)

remote access server (RAS)

remote data objects (RDO)

remote multiplexer unit (RMU)

remote radio head (RRH)

remote source route bridging (RSRB)

remote voice protocol (RVP)

re-shaping, re-amplification, re-timing (3R)

resilient packet ring (RPR)

resonant cavity LED (RC-LED)

resource and admission control function (RACF)

resource management (RM)

resource reservation protocol (RSVP)

resource reservation protocol traffic engineering (RSVP-TE)

retrain

reverse address resolution protocol (RARP)

reverse path broadcast (RPB)

reverse path forward (RPF)

reverse path multicasting (RPM)

reverse tunneling

rich media conferencing

ring control (RC)

ring tone

roaming

robot (bot)

robust header compression (ROHC)

rouind robin interrupt

round trip delay (RTD)

round trip time (RTT)

route

router (RO)

routing

routing area (RA)

routing domain (RD)

routing information indicator (RII)

routing information protocol (RIP)

routing protocol

routing table (RT)

routing table maintenance protocol (RTMP)

routing table protocol (RTP)

RPR network

RPR protocol

S

S0 interface

S2M interface

satellite-based mobile communications

scalable orthogonal frequency division multiplex access (SOFDMA)

scheduled transfer protocol (STP)

SDH layered model

SDH network

second generation (2G)

secondary station

section overhead (SOH)

secure HTTP (S-HTTP)

security parameter index (SPI)

segment

segment switching

segment type (ST)

segmentation and reassembly sublayer (SAR)

semiconductor optical amplifier (SOA)

semipermanent connection

sequence count field (SC)

sequence number (SN)

sequenced packet exchange protocol (SPX)

serial line Internet protocol (SLIP)

server appliance

server load balancing (SLB)

service access point identifier (SAPI)

service advertising protocol (SAP)

service area (SA)

service call sign

service code (SC)

service control point (SCP)

service creation environment point (SCEP)

service data unit (SDU)

service delivery platform (SDP)

service discovery application profile (SDAP)

service feature (SF)

service in the PSTN/IN requesting Internet service (SPIRITS)

service independent building block (SIB)

service interface point (SIP)

service level agreement (SLA)

service level specification (SLS)

service profile

service set ID (SSID)

service specific connection oriented protocol (SSCOP)

service switching point (SSP)

serving GPRS support node (SGSN)

session announcement protocol (SAP)

session description protocol (SDP)

session initiation protocol (SIP)

session initiation protocol for telephones (SIP-T)

short message service (SMS)

shortest path first (SPF)

signalling (SIG)

signalling connection control part (SCCP)

signalling gateway (SGW)

signalling system no 7 (SS7)

signalling transfer point (STP)

signalling transport (SIGTRAN)

signed response (SRES)

SIMlock

simple gateway control protocol (SGCP)

simple object access protocol (SOAP)

simple service discovery protocol (SSDP)

single frequency network (SFN)

single line multi service (SLMS)

single pair high bit rate digital subscriber line (SHDSL)

single per carrier system (SPCS)

single protocol router (SPR)

single-channel radio network

skinny client control protocol (SCCP)

slow ACCH (SACCH)

small office, home office (SoHo)

smartphone browser

SMS cell broadcast (SMS-CB)

soft switch

SoHo router

soliton waves

source address (SA)

source routing (SR)

source routing transparent (SRT)

space-division multiple access (SDMA)

spanning tree (SPT)

spanning tree protocol (STP)

spatial reuse protocol (SRP)

specific absorption rate (SAR)

splitter

spoofing

spread spectrum technology (SST)

spreading code

staffing and exchange protocol (SEP)

stand-alone dedicated control channel (SDCCH)

standard window size

static routing

stream control transmission protocol (SCTP)

streaming media

streaming standard

structured data transfer (SDT)

sub addressing (SUB)

subnet (SN)

subnet bandwidth manager (SBM)

subnetwork dependent convergence protocol (SNDCP)

subscriber control input via Internet (ISCI)

subscriber distribution interface (SDI)

subscriber identity module (SIM)

subscriber line

subscriber management system (SMS)

subscriber number (SN)

subscriptionless mobile networking (SMN)

sub-wavelength switching

superframe (SF)

supervisory frame (S-frame)

supplementary service

sustainable cell rate (SCR)

swap

switch

switched multimegabit data service (SMDS)

switched virtual circuit (SVC)

switching center

switching fabric (SF)

switching subsystem (SSS)

switching system

symmetric digital subscriber line (SDSL)

synchronization channel (SCH)

synchronization management language (syncML)

synchronization supply unit (SSU)

synchronized sample scrambler (SSS)

synchronous digital hierarchy (SDH)

synchronous optical network (SONET)

synchronous payload envelope (SPE)

synchronous residual time stamp (SRTS)

synchronous transfer mode (STM)

synchronous transport modul (STM-n)

synchronous transport signal (STS)

system architecture evolution (SAE)

T

T line

tagging

tandem connection monitoring (TCM)

tap

taper coupler

TCP rate control

TCP/IP routing

teaming number

technical specification group (TSG)

telecommunication and Internet converged services and protocols (TISPAN)

telecommunication management network (TMN)

telephone network

telephone number (DN)

telephone number block

telephone number mapping (ENUM)

telephone socket

telephone system

telephony application server (TAS)

telephony routing information protocol (TRIP)

telepoint

telocator data protocol (TDP)

temporary mobile station (TMS)

temporary mobile subscriber identity (TMSI)

terabit router

terminal adapter (TA)

terminal equipment (TE)

terminal equipment identifier (TEI)

terminal multiplexer (TM)

terminal portability (TP)

terminal server (TS)

TETRA enhanced data service (TEDS)

Tetra network

Tetra service

Tetra transmission frequencies

Tetrapol

third generation (3G)

third generation partnership project (3GPP)

third generation partnership project 2 (3GPP2)

third party quality monitoring (TPQM)

three party service (3PTY)

time division duplex (TDD)

time division multiple access (TDMA)

time division multiple access/frequency diversity duplex (TDMA/FDD)

time division multiple access/time division duplex (TDMA/TDD)

time division multiplexing (TDM)

time division multiplexing over IP (TDMoIP)

time division synchronous code division multiple access (TD-SCDMA)

time slot interchange (TSI)

time transparency

timing advance (TA)

tone paging

total access communications system (TACS)

TR-069

TR-104

traffic engineering (TE)

traffic management (TM)

traffic policing

traffic shaper

traffic shaping (TS)

trailing packet discard (TPD)

trans European trunked radio access (TETRA)

transaction capability (TC)

transcoding equipment (TCE)

transfer point

transmission control protocol (TCP)

transmission convergence sublayer (TC)

transmission system 1 (T1)

transmission system 2 (T2)

transmission system 3 (T3)

transmodulation

transparent asynchronous xmitter/ receiver interface (TAXI)

transport MPLS (T-MPLS)

transport protocol data unit (TPDU)

tree and tabular combined notation (TTCN)

tri band mobile phone

tributary unit (TU)

trumpet

trunk line

trunk media gateway (TMG)

trunk up down (TUD)

trunked line

trunked system controller (TSC)

trunking

trunking radio

tunable laser

tunneling

two wave mixing

two wire cable

type of service (ToS)

U

U band

UK0 interface

UK2 interface

ultra long haul (ULH)

ultra mobile broadband (UMB)

UMTS mobile phone

UMTS network

UMTS standard

UMTS terrestrial radio access network (UTRAN)

UMTS terrestrical radio access (UTRA)

UMTS transmission rate

unidirectional path switching ring (UPSR)

uniform resource characteristic (URC)

uniform resource locator (URL)

unique identification number (UIN)

universal asymmetric digital subscriber line (UDSL)

universal computer protocol (UCP)

universal Internet number (UIN)

universal media gateway (UMG)

universal mobile telecommunications system (UMTS)

universal personal telecommunications (UPT)

universal subscriber identity module (USIM)

universal test and operation PHY-interface for ATM (UTOPIA)

unlicensed mobile access (UMA)

unspecified bit rate (UBR)

unstructured supplementary service data (USSD)

UP0 interface

update number (UN)

U-R2 interface

US digital cellular (USDC)

user agent (UA)

user class of service (UC)

user datagram protocol (UDP)

user network interface (UNI)

user part (UP)

user plane (UP)

user to user signalling service (UUS)

UWC-136

Ux interface

V

V.21

V.22

V.22bis

V.27ter

V.29

V.32, V.32bis, V.32terbo

V.34

V.42, V.42bis

V.44

V.90

V.92

variable bit rate (VBR)

VDSL2

vendor independent messaging (VIM)

vertical cavity surface emitting laser (VCSEL)

very high speed digital subsciber line (VDSL)

very long haul (VLH)

virtual channel (VC)

virtual channel connection (VCC)

virtual channel identifier (VCI)

virtual circuit (VC)

virtual concatenation (VC)

virtual concatenation group (VCG)

virtual connection (VC)

virtual container (VC-n)

virtual path (VP)

virtual path identifier (VPI)

virtual private network (VPN)

virtual private wire service (VPWS)

virtual router (VR)

virtual router redundancy protocol (VRRP)

virtual scheduling (VS)

virtual tributary (VT)

virtual wavelength path (VWP)

visitor location register (VLR)

VLAN crossconnect (VLAN-XC)

voice activity detection (VAD)

voice and telephony over ATM (VToA)

voice operated transmission (VOX)

voice over ATM (VoATM)

voice over DSL (VoDSL)

voice over frame relay (VoFR)

voice over Internet (VoIT)

voice over IP (VoIP)

voice profile for Internet mail (VPIM)

voice quality

VoIP private branch exchange (VoIP-PBX)

W

WAP forum

wavelength converter

wavelength division multiplexing (WDM)

wavelength interchange crossconnect (WIXC)

wavelength selective cross-connect (WSXC)

wavelength switching

web application firewall (WAF)

web cache communication protocol (WCCP)

weighted fair queuing (WFQ)

weighted random early detection (WRED)

weighted round robin queuing (WRR)

wide area file service (WAFS)

wide area information server (WAIS)

wide area network (WAN)

wide wavelength division multiplex (WWDM)

wideband code division multiple access (WCDMA)

WiMAX forum

WiMAX network

window size

window technique

wireless access communication system (WACS)

wireless application environment (WAE)

wireless application protocol (WAP)

wireless ATM (WATM)

wireless broadband (WiBro)

wireless datagram protocol (WDP)

wireless digital subscriber line (WDSL)

wireless Ethernet compatibility alliance (WECA)

wireless local loop (WLL)

wireless markup language (WML)

wireless metropolitan area network (WMAN)

wireless network management (WNM)

wireless regional area network (WRAN)

wireless robust authentication protocol (WRAP)

wireless session protocol (WSP)

wireless telephony API (WTA)

wireless transaction protocol (WTP)

wireless transport layer security (WTLS)

worldwide interoperability for microwave access (WiMAX)

X

X.11

X.21

X.21bis

X.22

X.25

X.25 protocol

X.31

X.500

X.500 user directory

X.509

X.75

X400

xDSL technologies

Z

zone

Imprint