Telecom Abbreviations

Here's a list of abbreviations related to the Telecom terminology and jargon:


Acronym

Definition

#
*
1000BASE-T
100BASE-T
100BASE-T2
100BASE-T4
100VG
10BASE-T
1BTSPS
1FB
1FL
1LR
2G
2W
3G
3G HSPA
3GIP
3GPP
3GSM
3RNGR
3WC
3WO
4 GIG
4G
4W
4WA
4WAI
4WE&M
5CA
5ESS
802.11 HR
8B1
A
A-GPS
A/D
AA
AABS
AAC
AAC-ELD
AACTI
AADC
AADS
AAL
AAL2
AAL5
AAP
AAPR
AAR
AAS
AASR
AATN
AAV
ABA
ABE
ABR
ABTA
ABTL
ABTP
AC
ACA
ACAP
ACC
ACD
ACE
ACF
ACFQ
ACG
ACHT
ACIS
ACK
ACL
ACLR
ACM
ACMA
ACNA
ACO
ACOU
ACP
ACR
ACS
ACTO
ACTS
ACTT
ACU
ACVS
ADAD
ADAS
ADC
ADCCP
ADF
ADIF
ADIT
ADLI
ADM
ADM 3X
ADN
ADPCM
ADPT
ADSL
ADSRF
ADTM
ADTN
ADTS
ADTS-E
ADU
AEE
AES
AF
AFPS
AFRINIC
AFSK
AFTN
AGC
AGCH
AGPS
AHT
AIN
AIOD
AIP
AIR
AIS
AIS-L
AIS-P
AIS-V
AIU
ALB
ALC
ALCAP
ALDC
ALI
ALIS
ALIT
ALOC
ALS
AM
AMA
AMBPU
AMC
AMI
AML
AMOLED
amp
AMPS
AMPU
AMR
AMS
AMSI
AMSS
AMT
AMTS
AN
AN/ARC
AN/PRC
ANAC
ANC
ANCD
ANI
ANP
ANSI
AOC
AON
AOS
AP
APCO
APDU
API
APM
APN
APOT
APR
APS
APTC
APTG
APTI
APTS
ARA
ARAI
ARD
ARP
ARPT
ARPU
ARS
ARTU
AS56
ASA
ASB
ASD
ASE
ASI
ASIC
ASLV
ASM
ASN.1
ASP
ASPECT
ASR
ASTI
ASU
ASYNC
AT
ATA
ATB
ATCA
ATCI
ATHP
ATII
ATIS
ATLAS
ATM
ATMT
ATN
AToM
ATOS
ATP
ATR
ATRAC
ATS
ATSP
ATTL
ATTRA
ATTU
ATU
ATU-C
ATU-R
ATZ
AU
AuBW
AUP
AUSPI
AUTC
AVD
AVR
AVT
AWA
AWCC
AWS
AWT
AZDL
B
B-CPE
B-ICI
B-ISDN
B3G
B3ZS
B5G
B6ZS
BABT
BAC
BAF
BAN
BANC
BAOC
BASH
BASH-R
BATM
BB
BBCR
BBM
BBTS
BBU
BC
BCC
BCCH
BCD
BCE
BCH
BCIX
BCM
BCP
BCT
BDFB
BDS
BDSL
BEAR
BECN
BER
BERT
BETEL
BFS
BFW
BGCF
BGSA
BHA
BHCA
BHCC
BHP
BIP
BIPT
BISDN
BISS
BIT
BITM
BITS
BIU
BLEC
BLER
BLERT
blmocoin
BLP
BLT
BLUE
BM
BMG
BMS
BN
BNC
BNT
BOC
BOD
BORSCHT
BOT
BPoP
BPS
BPSK
BR
BRA
BRAN
BREW
BRI
BRITE
BRTL
BS
BSA
BSC
BSD
BSID
BSM
BSOD
BSRF
BSS
BT
BTAB
BTAM
BTC
BTCL
BTE
BTL
BTLZ
BTMS
BTN
BTNA
BTO
BTP
BTPS
BTRC
BTS
BU
BUC
BUPT
BUR
BUSTA
BWRC
BWX
BYOD
BYOP
C
C-NBAP
C/R
CA
CAAS
CAB
CABS
CAC
CACH
CACT
CAD
CAIRO
CAL
CALA
CALC
CALEA
cama
CAMP
CAPS
CAPTAIN
CAR
CARE
CAS
CASE
CASP
CAT
CATI
CATV
CB
CBCU
CBO
CBQ
CBR
CBRS
CBWFQ
CC
CCB
CCBS
CCC
CCEA
CCFO
CCH
CCIR
CCIS
CCITT
CCM
CCNA
CCOFS
CCR
CCS
CCSA
CCSD
CCT
CCTA
CCTI
CCTN
CCTS
CCTV
CCU
CD
CDA
CDM
CDMA
CDN
CDO
CDPD
CDR
CDSL
CELL
CEP
CEPT
CES
CETC
CEV
CF
CFA
CFNA
CFO
CFOT
CFR-47
CFS
CFU
CGA
CGI
CGMT
CGSA
CGT
CHE
CHT
CHTML
CI
CIC
CICT
CID
CIL
CIP
CIPoA
CIPT
CIR
CIRC
CIU
CKT
CLASS
CLD
CLEC
CLECS
CLETS
CLI
CLID
CLIP
CLK
CLLM
CLNP
CLOS
CLP
CLS
CM
CMAP
CMAS
CMIP
CMIS
CMISE
CMM
CMO
CMOS
CMP
CMRS
CMS
CMT
CMTE
CMTS
CN
CNA
CNAM
CND
CNG
CNM
CNT
CNTS
CO
COAM
COAX
COB
COBE
COC
CODEC
COFA
COIC
COL
COLT
COMDEX
COMPANDER
COMS
COPS
COR
CORBA
COT
COTP
COU
CP
CP-OFDM
CPC
CPE
CPEB
CPG
CPI
CPIC
CPN
CPOP
CPP
CPS
CPT
CPU
CR
CRA
CRACK
CRBT
CRC
CRCDN
CRIS
CRLF
CRS
CRT
CRV
CS
CS-PDU
CSA
CSAA
CSAP
CSC
CSCD
CSDU
CSF
CSL
CSMA
CSMA/CA
CSMA/CD
CSP
CSPRM
CSR
CSS
CSTA
CSTAC
CSTE
CSU
CSUR
CSV
CT
CTAC
CTCL
CTE
CTG
CTI
CTIA
CTIE
CTIT
CTN
CTNS
CTO
CTPR
CTR
CTS
CTSO
CTTAB
CTTC
CTTIC
CTTL
CTTS
CTTX
CTU
CTUF
CTWU
CU
CUA
CUCM
CUG
CUSA
CV
CVSD
CVT
CWC
CWTS
CYTA
CYTG
D
D-NBAP
D/A
D/I
D3
D4
DAC
DACS
DAHDI
DAL
DAMPS
DAS
DAVIC
DB
DBMS
DBN
DBoRs
dBRN
dBRNC
DBS
DC
DCA
DCAS
DCAT
DCB
DCC
DCCX
DCD
DCE
DCEF
DCF
DCH
DCID
DCN
DCPNZ
DCPV
DCPZ
DCR
DCS
DCSS
DCT
DCTU
DD
DDCNZ
DDCZ
DDD
DDI
DDLD
DDRS
DDS
DDSD
DDTP
DE
DECT
DEMUX
DF
DFA
DFMS
DFRI
DFT-S-OFDM
DFTS
DGPT
DGT
DH
DHCP
DHD
DIA
DICOM
DID
DIL
DINC
DIP
DIRC
DIRD
DIRF
DISA
DITT
DIW
DL
DLC
DLCI
DLE
DLI
DLIS
DLOL
DLR
DLS
DLT
DM
DMARC
DMB
DMF
DMI
DMNG
DMP
DMPB
DMS
DMT
DMX
DN
DNA
DNC
DNI
DNIC
DNIS
DNMS
DNR
DNY
DOCSIS
DOD
DOITT
DOR
DOrA
DORK
DOS
DOT
DOV
DP
DPA
DPBX
DPCA
DPCM
DPDCH
DPDU
DPE
DPL
DPO
DPS
DPSK
DPT
DQR
DRAC
DRI
DRS
DRTL
DRTT
DS
DS-1
DS-1C
DS-2
DS-4
DS0
DSC
DSCP
DSET
DSI
DSL
DSLAM
DSN
DSP
DSPI
DSRF
DSS
DSSS
DSTD
DSTE
DSU
DSVD
DSX
DSX-2
DSX-3
DT
DTAP
DTAS
DTAU
DTC
DTE
DTF
DTI
DTIS
DTL
DTMD
DTMF
DTPL
DTPS
DTR
DTS
DTU
DTX
DUC
DUL
DUN
DUNC
DUNCE
DUV
DV
DVC
DVI
DVP
DVS
DWDM
DWN
DX
DXC
DXI
E
E&M
E-LEAD
E911
EA
EAI
EAPTC
EARFCN
EAS
EB
EBCDIC
EC
EC-n
ECA
ECC
ECG
ECHI
ECITTC
ECP
ECPA
ECR
ECS
ECSA
ECSAT
ECT
ECTA
ECTEL
ECTF
EDC
EDD
EDFA
EDGE
EDI
EDN
EDSX
EDT
EDUSAT
EECM
EEHO
EEPROM
EETPU
EFCI
EFD
EFF
EGPRS
EGSM
EHPS
EHPT
EICS
EIDR
EIRP
EITC
EITL
EKTS
ELEC
ELFEXT
ELL
EM
EMC
EMI
EMIRA
EML
EMLPP
EMS
EMTS
EMX
ENFIA
ENST
ENUM
EOC
EOF
EONS
EOT
EPABX
EPPR
EPSCS
ERA
ERC
ERI
ERL
ERM
ES
ESA
ESF
ESFDL
ESG
ESL
ESMT
ESP
ESS
ESSID
ESTA
ESVN
ET
ETB
ETC
ETE
ETET
ETF
ETIT
ETN
ETNS
eTOC
eTOM
ETPI
ETRI
ETS
ETSI
ETT
EUCL
EUCR
EUE
EUEP
EULA
EUS
EV-DV
EVA
EVC
EVN
EVRC
F
FA
FAC
FACS
FANTASTIC-5G
FAS
FAST
FAW
FB
FCA
FCAL
FCC
FCFS
FCM
FCO
FCS
FCT
FCV
FD
FDD
FDDI
FDI
FDL
FDM
FDOA
FDS
FDTD
FE
FEAC
FEBE
FEBE-F
FEBE-I
FEC
FECC-F
FECC-I
FECN
FELB
FERF
FEXT
FFC
FFSK
FFT
FGA
FGD
FH
FHMA
FHSS
FICORA
FIFO
FiOS
FITCE
FITL
FL
FLC
FLL
FLLT
FLM
FLN
FLPC
FM
FMC
FMCG
FMR
FMS
FMT
FNN
FOB
FOC
FOCE
FOE
FoIP
FOSE
FOTP
FOTS
FP
FPLMTS
FPS
FR
FR PVC
FR-SSCS
FRAD
FRF-LMI
FRS
FRSS
FRUCT
FSAI
FSC
FSFB
FSI
FSK
FSM
FSS
FT
FT1
FT8
FTAM
FTFW
FTHL
FTI
FTIA
FTML
FTMR
FTNS
FTP
FTS
FTTB
FTTC
FTTD
FTTdp
FTTE
FTTF
FTTH
FTTI
FTTK
FTTLA
FTTM
FTTN
FTTO
FTTP
FTTR
FTTX
FTTX I&C
FTTZ
FTW
FUD
FUNI
FUP
FWA
FWS
FWT
FX
FXO
FXS
GAA
GAT
GATE
GBET
GBPS
GBT
GBTS
GC
GCA
GCS
GDK
GDM
GDPT
GDS
GEO
GERAN
GETS
GFC
GFI
GFSK
GGTT
GI
GIF
GITS
GITTA
GITTS
GLB
GLD
GLR
GLT
GMBS
GMF SATCOM
GMFU
GMLC
GMRS
GMSS
GMTC
GOMP
GOS
GOSIP
GPBX
GPRS
GPS
GPTA
GPTC
GRE
GRT
GRUB
GS
GSA
GSM
GSM-R
GSMA
GSN
GSST
GSTN
GT&T
GTA
GTB
GTC
GTCU
GTI
GTIS
GTM
GTP
GTS
GTSS
GTT
GTTC
GTTI
GTXC
GVT
GVTC
GWCS
GWTC
GWTS
HBH
HBOS
HC
HCDS
HCF
HCO
HCPT
HCT
HCV
HDB3
HDLC
HDML
HDSL
HDSL2
HDT
HEC
HEHO
HESC
HETA
HEX
HFC
HFK
HFT
HHD
HIDF
HIP
HITN
HKT
HLB
HLR
HMEC
HN
HNT
HOPA
HP-GL
HPN
HPNA
HPSA
HPSA+
HQGSM
HS
HS2
HSC
HSCSD
HSCSWD
HSD
HSDPA
HSOPA
HSPA
HSS
HSUPA
HTHK
HTI
HTIS
HTML
HTMT
HTO
HTTP
HTTPS
HTU
HTU-C
HTU-R
HTV
HU
HUACA
HUMAN
HUP
HW
HYTR
i.LINK
IAD
IAMAI
IAST
IAT
IATA
IAV
IBS
IBSS
IBTE
IC
IC-POT
ICAL
ICC
ICCF
ICCID
ICE
ICFL
ICL
ICLD
ICNIRP
ICR
ICSF
ICT
ICTA
ICTP
ICTT
IDC
IDCP
IDCU
IDD
IDDD
IDET
IDF
IDLC
IDM
IDR
IDS
IDSL
IDT
IE
IEC
IEEE
IEEE-CS
IEEE-SA
IEET
IEPL
IESS
IETE
IFLS
IG
IIS
IITT
IKI
ILD
ILEC
ILETS
ILF
ILQ
ILRM
IM4
IMA
IMC
IMEI
IMM
IMMAT
IMP
IMPACT
IMPCS
IMPI
IMR
IMS
IMSI
IMT
IMT-A
IMT-FT
IMTC
IMTS
IN
INA
INE
INO
INPT
INSAT
INU
INWATS
IO
IOC
IOCA
IOCDS
IOS
IOT
IP
IPAD
IPC
IPCC
iPCU
IPCX
IPD
IPLC
IPM
IPMAT
IPNG
IPNT
IPOD
IPS
IPT
IPTC
IPTD
IPvX
IR
IRC
IRISET
IRMA
IRTC
IS 41
ISA
ISAR
ISBX
ISC
ISD
ISDN
ISDNUP
ISDP
ISI
ISM
ISO
ISP
ISSI
ISSIP
ISSP
ISTD
ISUP
ITA
ITAC
ITC
ITCC
ITEC
ITFS
ITM
ITNR
ITO
ITP
ITPA
ITPC
ITR
ITRC
ITS
ITSO
ITSP
ITSPA
ITST
ITTC
ITTP
ITTS
ITU
ITU-T
ITU-TSS
ITV
ITW
IU
IUC
IUCV
IVAD
IVD
IVDT
IVI
IVN
IVQ
IVS
IVW
IWE
IWF
IWMS
IWT
IWU
IWW
IXC
JAT
JC
JCTA
JCU
JDC
JIBE
JICC
JIS
JKQ
JLS
JTEC
JTMC
JTO
JTRB
JTU
JUNOS
JYP
KBT
KEY
KFT
KFTC
KLM
KPT
KSPS
KT
KTA
KTF
KTJ
KTL
KTR
KUW
L2F
L2TP
L2TPv3
LAAS
LAC
LACNIC
LADS
LADT
LAG
LAIS
LAN
LANE
LAP-B
LAP-D
LAPB
LAPD
LAPM
LAS
LATA
LAW
LBR
LBS
LBX
LC
LCA
LCAS
LCE
LCGN
LCN
LCR
LCT
LCTDMA
LCU
LCWN
LD
LDAP
LDB
LDC
LDDS
LDI
LDL
LDM
LDN
LDPC
LDS
LE
LEC
LECC
LEN
LES
LET
LETS
LFACS
LFMT
LFTYR
LG
LGE
LGS
LIDB
LIU
LLB
LLC
LLETS
LLU
LMBCS
LMC
LMDS
LME
LMI
LMOS
LMS
LMSR
LMU
LND
LNP
LOF
LOH
LON
LOP
LOP-L
LOP-P
LOP-V
LOS
LOSW
LP
LPC
LPDP
LPU
LQC
LQD
LQE
LQF
LQI
LQM
LQN
LQO
LQR
LR
LR-WPAN
LRB
LRM
LRN
LRQ
LS
LSAP
LSI
LSMS
LSOA
LSP
LSR
LSS
LT
LTA
LTE
LTG
LTHI
LTS
LTT
LTU
LUD
LUL
LULT
LUNT
LVC
LVDS
LVM
LVZ
LWT
LXT
LZ
M-CSI
M-LEAD
M-M
M/W
M2M
MAC
MAE
MAG
MAI
MAIO
MAN
MAP
MAPDU
MAPP
MAT
MATAC
MATI
MB
MBA
MBAC
MBBD
MBBS
MBCM
MBMS
Mbps
MBS
MBT
MBVS
MBWA
MC
MC-SS
MC/MIC
MCA
MCC
MCET
MCFI
MCN
MCP
MCPC
MCS
MCTA
MCU
MDA
MDACT
MDC
MDCNZ
MDCP
MDCZ
MDF
MDM
MDN
MDS
MDTS
MDU
ME
MEAS
MEET
MEH
MEID
MERS
METRO
MF
MFA
MFAS
MFJ
MFN
MFR
MFRM
MFT
MG
MGCP
MGW
MHD
MHL
MHS
MIB
MIDP
MIN
MIP
MIR
MIRA
MIS
MITE
MITS
MJC
MJT
MJU
MKBSY
MLC
MLE
MLHG
MLM
mLMS
MLP
MLTS
MMC
MMCH
MMDS
MMDX
MME
MMJ
MMK
MMM
MMMB
MMMS
MMR
MMS
MMSC
MMT
MNA
MND
MNET
MNOC
MNP
MNS
MO
MOBILE
MOC
modem
MOE
MOH
MOL
MOM
MOO
MOOF
MOSA
MOTP
MOU
MP
MPDLS
MPE
MPLS
MPN
MPOA
MPOD
MPOE
MPOP
MPPE
MPSK
MPT
MPTC
MQTT
MRC
MRF
MRV
MS
MSA
MSAN
MSAP
MSC
MSDL
MSID
MSIN
MSIS
MSISD
MSISDN
MSL
MSM
MSMA
MSN
MSNP
MSO
MSP
MSRN
MSS
MSU
MSV
MT
MTA
MTAP
MTAS
MTAU
MTBF
MTC
MTIT
MTL
MTN
MTNL
MTP
MTPT
MTS
MTSA
MTSO
MTSS
MTTE
MTTLR
MTVL
MU
MUB
MUTO
MUTOA
MUX
Muxing
MVL
MVNO
MVPD
MWAA
MWN
MWT
MWVPN
MX
N(R)
N(S)
N-AMPS
NA
NAAD
NAC
NADH
NAK
NAL
NAMPS
NANP
NANPA
NAPRD
NAPT
NAS
NAT
NB-LTE
NBAP
NBN
NBTC
NC
NCD
NCI
NCMN
NCP
NCRS
NCS
NCT
NCTE
NCTL
NCTUE
NCU
ND
NDE
NDF
NDL
NDM
NDMA
NDOTT
NDT
NE
NEP
NETO
NETSS
NEWT
NEXT
NFAS
NFWS
NGA
NGCC
NGDLC
NGN
NGNP
NGOSS
NGT
NGTS
NI
NI-1
NI-2
NIFTE
NIR
NITI
NITZ
NIU
NL
NLB
NLPID
NLU
NM
NMA
NMC
NMF
NMI
NML
NMP
NMS
NMSI
NMT
NNG
NNI
NNP
NOC
NOF
NOL
NOLC
NOS
NOTA
NOTE
NPA
NPAC
NPD
NPDU
NPI
NPO
NPTF
NPTG
NPTH
NPTN
NRA
NRC
NRT
NRTC
NRZ
NSA
NSC
NSCTA
NSI
NSN
NSP
NSS
NSTSSI
NT
NTA
NTC
NTCA
NTCN
NTD
NTDC
NTE
NTIA
NTL
NTML
NTNA
NTOE
NTP
NTPO
NTQ
NTRC
NTS
NTSP
NTTA
NTTC
NTTN
nu
NUTE
NVQ
NWD
NWH
NWI
NWN
NxTT
NXX
NYIIX
NYU
O
O2U
OAA
OAM&P
OAMP
OAS
OATN
OBD
OBSAI
OBT
OC
OC-n
OCA
OCC
OCD
OCN
OCS
OCTA
OCU
OCWN
OD
ODCH
ODCM
ODCP
ODCV
ODL
ODTA
ODU
OE
OFA
OFDM
OFE
OFN
OGX
OH
OHP
OICK
OIL
OIM
OITD
OLEC
OLNS
OLP
OLT
OLTS
OM
OMC
OMCI
OMPI
OMS
OMSN
ONAL
ONU
OOA
OOD
OOF
OON
OOS
OOS-AU
OOS-AUMA
OOSP
OPN
OPP
OPS
OPS/INE
OPT
OPTUS
OPX
OR
ORB
ORJ
OS
OSI
OSM
OSP
OSS
OSTA
OTA
OTACS
OTAM
OTAP
OTAPA
OTASP
OTC
OTDR
OTEL
OTI
OTM
OTOC
OTP
OTS
OTSO
OTSS
OTT
OTVA
OUI
OUTWATS
OVC
OVSF
OXE
OYT
P/F
P2P
PA
PA/VA
PABX
PAC
PACTS
PAD
PAL
PAM
PAM5
PAMD
PANA
PASTA
PAT
PATS
PATU
PAW
PBPS
PBTL
PBX
PC
PCA
PCC
PCF
PCI
PCIP
PCM
PCMCIA
PCMM
PCMS
PCN
PCO
PCP
PCR
PCRF
PCS
PCT
PCTF
PCTN
PCX
PD
PDC
PDD
PDH
PDI V
PDI-P
PDN
PDP
PDQ
PDSN
PDU
PEML
PEP
PERO
PFDL
PGS
PHF
PHS
PIB
PIC
PICC
PIK
PILD
PIM
PIP
PITA
PITIP
PITS
PIXIT
PJC
PKI
PKT
PL
PLA
PLAMATB
PLAR
PLB
PLC
PLCP
PLDT
PLM
PLMN
PLMT
PLMTS
PLS
PLT
PM
PMA
PMCL
PMD
PMM
PMR
PMRS
PNA
PNNI
PNP
POC
POH
POIP
POMI
PON
POP
POS
POT
POTS
POTV
POTWA
POU
PPM
PPP
PPSD
PPSN
PPT
PPTN
PPTP
PR
PRA
PRACK
PRBS
PRBT
PRD
PRI
PRL
PRM
PRN
PRS
PRU
PRU-ICSS
PS
PSC
PSDS
PSELFEXT
PSK
PSLV
PSN
PSNEXT
PSP
PSQM
PSS
PST
PSTN
PSX
PTA
PTAM
PTC
PTCL
PTCM
PTE
PTET
PTFP
PTI
PTK
PTMC
PTML
PTN
PTO
PTP
PTS
PTSC
PTT
PTWU
PUHU
PUK
PVC
PVG
PVS
PWAE
PWP
QAM
QC
QCI
QDR
QLC
QLW
QNC
QNL
QNS
QOB
QOD
QOI
QOS
QOSM
QOSOI
QOTS
QOV
QPA
QPM
QPSK
QPW
QQS
QRW
QS
QSK
QTAM
R
R10
RACH
RAD
RADIUS
RADSL
RAEX
RAI
RALB
RAM
RAN
RANAP
RANN
RAPID
RAS
RAT
RATA
RATS
RAU
RB
RBHC
RBOC
RBS
RBT
RC
RCC
RCDD
RCE
RCF
RCH
RCMAC
RCMAG
RCMS
RCQS
RCS
RCU
RCV
RCVS
RD
RDD
RDF
RDI
RDI-L
RDI-P
RDI-V
RDS
RDT
RDY
RDY/BSY
REN
RF
RFC
RFI
RFID
RFIDAI
RFO
RFR
RFS
RGC
RHE
RI
RIA
RIC
RICK
RII
RIM
RINO
RIO
RIP
RIPE NCC
RIPT
RITS
RJ-11
RJ-14
RJ-25
RLA
RLC
RLCI
RLDI
RLF
RLTT
RLU
RM
RMC
RMTN
RNC
RNR
RNU
RNW
RNX
RO
RODO
ROF
ROH
ROI
ROL
ROP
ROPP
ROS
ROSE
ROW
RPE-LPC
RPE-LTP
RPO
RPS
RPT
RPV
RR
RRATE
RRF
RRLD
RRN
RRO
RS-422
RSL
RSN
RSP
RSRQ
RSS
RSU
RT
RTAT
RTB
RTC
RTCL
RTDC
RTDF
RTN
RTNZ
RTPB
RTRP
RTS
RTT
RTTE
RTU
RTX
RTZ
RUIM
RWF
RWI
RWIN
RWL
RWN
RWT
Rx
RXD
RXJ
RXP
RYC
RYP
RZ
S
S/N
SAA
SAB
SABGW
SACC
SACS
SAF
SAG
SAI
SAM
SAMA
SAMI
SAMS
SAN
SAPI
SAR
SAR-PDU
SARI
SARS
SAS
SATC
SATRA
SB
SBC
SBX
SC
SCA
SCADA
SCANR
SCAT
SCAX
SCAYNP
SCC
SCCP
SCCS
SCD
SCE
SCH
SCM
SCN
SCO
SCP
SCPC
SCPT
SCRB
SCRG
SCRUM
SCTE
SCTP
SCU
SCUR
SD
SDCCH
SDH
SDHLR
SDK
SDLC
SDM
SDMA
SDN
SDNB
SDP
SDSL
SDTA
SDTN
SEAMEWE-6
SECABS
SEFL
SES
SETIT
SF
SFN
SG
SGCP
SGSN
SGTC
SGW
SHD
SHDSL
SHIT
SHM
SHR
SIGTRAN
SIL
SIM
SIMT
SINAD
SINAP
SIO
SIP
SIT
SITA
SITT
SKT
SL
SLA
SLC
SLIC
SLICE
SLIM
SLIP
SLLR
SLM
SLOC
SLT
SLTS
SLV
SM OFC
SMASE
SMC
SMDF
SMDR
SMDS
SMFD
SMFE
SMG
SMIT
SML
SMLC
SMS
SMSC
SMT
SMTI
SMTT
SMU
SNA
SNAP
SNECS
SNET
SNI
SNIX
SNMP
SNR
SO
SOA
SOGA
SOH
SONET
SOR
SOS
SPA
SPC
SPCS
SPD
SPE
SPF
SPH
SPI
SPID
SPIN
SPMT
SPN
SPNI
SPSR
SPTC
SPU
SPV
SQ
SQE
SQM
SQR
SR
SRA
SRB
SRD
SRL
SRM
SRP
SRS
SRTS
SRU
SS1
SS2
SS3
SS4
SS5
SS6
SS7
SSAP
SSB
SSC
SSG
SSM
SSMA
SSN
SSP
SSRC
SSU
STAN
STAP
STBS
STC
STCD
STD
STDM
STE
STELLISA
STFI
STI
STIR
STIR/SHAKEN
STK
STMB
STN
STND
STP
STPI
STR
STRS
STS
STSB
STUN
STV
STVM
SU
SUF
SUT
SVC
SVD
SVW
SW
SWAN
SWANSAT
SWAP
SWAT
SWF
SWF-DS1
SWIFT
SWN
SWNI
SX
SYN
SYNC
SYNTRAN
T
T-IC
T/C
T1
T3
TA
TAAC
TAC
TACS
TAD
TADS
TAE
TAIT
TAM
TAMS
TANE
TAP
TAPD
TAPI
TAPS
TASI
TAST
TAU
TAX
TBB
TBD
TBF
TBI
TbPS
TBQ
TBR
TBS
TC
TCA
TCAM
TCAP
TCB
TCBH
TCCL
TCCMS
TCCP
TCG
TCIC
TCIYP
TCM
TCMS
TCO
TCOE
TCOS
TCP
TCP/IP
TCPA
TCS
TCSO
TCT
TCTA
TD
TD-CDMA
TD-SCDMA
TDAB
TDAP
TDB
TDD
TDF
TDM
TDMA
TDMM
TDMT
TDOA
TDP
TDPD
TDR
TDSA
TDSAT
TDU
TE
TEAF
TEARD
TEBC
TEDA
TEDP
TEHO
TEI
TEL
TEL & TEL
TELCO
TELECOM
TELECOMMUTE
TELEX
TELNET
TEM
TEMA
TEMIA
TEN
TENT
TENZ
TEO
TES
TESMA
TESP
TETRA
TF
TFA
TFL
TFO
TFOT
TGB
TGPSI
THGR
THINK
THK
THL
THT
THz
TI
TIA
TIC
TICI
TICS
TICTU
TIDW
TIE
TIF
TIM
TIMS
TINA
TIND
TIO
TIP
TIRAP
TIRF
TIRKS
TISM
TIT
TJB
TJF
TJR
TKIP
TL
TL1
TLBC
TLC
TLETS
TLF
TLM
TLP
TLPU
TLR
TLS
TLT
TLWS
TLX
TMA
TMAB
TMAP
TMC
TMD
TME
TMF
TMG
TMGB
TMN
TMO
TMOD
TMR
TMRS
TMSI
TMSS
TMT
TMTC
TN
TNI
TNMS
TNS
TNSS
TNT
TNYWR
TOAST
TOAT
TOC
TOH
TOLA
TOM
TOMS
TON
TOP
TOPS
TOS
TOSL
TOU
TP
TPB
TPC
TPDU
TPE
TPI
TPIS
TPL
TPQ
TPRC
TPS
TPSN
TPSP
TR
TRA
TRAC
TRAI
TRBR
TRCSL
TRD
TRDF
TRE
TRF
TRMA
TRNA
TRNB
TRRF
TRS
TRX
TS
TSA
TSAN
TSAP
TSAPI
TSAR
TSB
TSBU
TSC
TSD
TSDM
TSDU
TSER
TSES
TSG
TSGR
TSI
TSIP
TSM
TSMA
TSOC
TSOG
TSP
TSPS
TSR
TSRP
TSS
TSSA
TSSC
TSSI
TSSP
TSSR
TSTS
TSTT
TSY
TT
TTA
TTAC
TTC
TTCL
TTD
TTE
TTFG
TTG
TTGS
TTIL
TTK
TTM
TTP
TTR
TTS
TTTN
TTX
TTY
TU
TUA
TUAG
TUANZ
TUFF
TUGI
TUMS
TUP
TUR
TUS
TUSO
TV
TVL
TVM
TVR
TW
TWA
TWIE
TWINUI
TWISP
TWL
TWSS
TWT
TWX
TXC
TXD
TXE
TXM
TXS
TZT
UA
UAC
UAK
UAN
UART
UAS
UASL
UAT
UAT2
UAX 14
UBI
UBL
UBR
UBT
UCB
UCC
UCD
UCF
UCIU
UCM
UCP
UCS
UCT
UCTN
UDC
UDLC
UDP
UDR
UDS
UDT
UDTX
UEM
UGC
UI
UIDH
UIQ
UIT
UKTA
UL
ULC
ULL
ULLS
ULQ
UMA
UMATS
UMC
UMS
UMTS
UNE-P
UNI
UNICODE
UNL
UNLD
UNO
UNP
UNS
UOS
UPC
UPCU
UPF
UPMT
UPP
UPPC
UPS
UPT
UPTO
URC
URM
URR
USA
USD
USF
USI
USLD
USOC
USPI
USRT
UTFX
UTI
UTL
UTP
UTRA
UTRAN
UVG
UWT
UXW
VA
VAC
VAD
VADB
VANS
VAS
VAZO
VBR
VC
VCA
VCC
VCE
VCF
VCI
VCM
VCO
VCT
VDS
VDSL
VDT
VDV
VERT
VF
VF0
VFL
VFM
VG
VGC
VGCP
VGF
VHM
VICTS
VIDF
VIL
VINF
VIRUS
VIS
VLAN
VLL
VLP
VLR
VM
VMB
VMES
VMO
VMR
VMTT
VMU
VMUI
VMWI
VMY
VN
VNL
VNS
VNT
VNTR
VO
VOB
VOD
VODAFONE
VOF
VoFR
VoIP
VoIPTXT
VOL
VON
VOP
VoX
VP
VPDN
VPI
VPL
VPLS
VPM
VPN
VPWS
VPX
VQA
VQC
VQE
VQI
VQL
VQR
VQT
VQV
VR
VRR
VRS
Vrsm
VRSP
VSAT
VSC
VSK
VSM
VSP
VSR
VT
VTA
VTAC
VTAM
VTI
VTM
VTN
VTQ
VTS
VTSP
VTU
VVD
VVP
VVX
VWM
VWO
VXML
VYP
VZBB
VZP
W-CDMA
WAAS
WACM
WACN
WACN ID
WACP
WACR
WADS
WAE
WAFB
WAGN
WAIS
WAL
WAN
WAP
WAPF
WAPI
WAR
WARP
WATRS
WATS
WATTS
WAVE
WAW
WAYP
WAYPE
WBA
WBBI
WBCI
WBCS
WBCT
WBE
WBGK
WBI
WBIA
WBMP
WBOK
WBOX
WBSN
WBT
WBTS
WCA
WCB
WCDMA
WCET
WCFQ
WCIT
WCM
WCMP
WCOE
WCRL
WCRM
WCS
WCTB
WCTG
WCTP
WCZO
WDA
WDCS
WDCX
WDDF
WDDM
WDF
WDL
WDM
WDMW
WDN
WDP
WDRM
WDS
WDSL
WDSN
WDT
WEA
WEB
WECA
WECM
WEDE
WEP
WEPD
WEWI
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WFA
WFAT
WFFQ
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WFOC
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WHAT
WHIW
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WHM
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WID
WIDS
WIEA
WIG
WIGLE
WIKS
WIM
WIMC
WIN
WIOP
WIPA
WIPI
WIPN
WIPS
WIPSC
WIRC
WIS
WISE
WISI
WISP
WIT
WITA
WITS
WIUB
WIVA
WIVO
WIWT
WIX
WIXC
WIXD
WIZ
WL
WLA
WLAB
WLAN
WLAP
WLAR
WLDD
WLDS
WLDT
WLEC
WLHB
WLHP
WLIA
WLL
WLLD
WLN
WLNP
WLRL
WLS
WLSE
WLSM
WLSS
WLTF
WLTG
WMA
WMAN
WMBD
WMCL
WMIP
WML
WMTP
WMTS
WMU
WN
WNA
WNAN
WNAP
WNAR
WNAS
WNC
WND
WNE
WNI
WNIU
WNL
WNM
WNMS
WNP
WNPD
WNPO
WNQ
WNQR
WNQS
WNRC
WNRL
WNSK
WNVA
WOIP
WON
WOQS
WORP
WOS
WOSN
WOTY
WOW
WP
WP7
WPA
WPAN
WPAS
WPBX
WPC
WPCS
WPKI
WPM
WPMS
WPOP
WPoS
WPS
WQoS
WRAN
WRAPS
WRB
WRBB
WRBS
WRED
WRI
WRRK
WRT/R
WRU
WSA
WSD
WSI
WSL
WSN
WSNN
WSP
WT
WTA
WTAI
WTC
WTCD
WTCP
WTDC
WTDC 2002
WTDC 2003
WTDC 98
WTDM
WTEL
WTF
WTFB
WTFP
WTIA
WTID
WTIS
WTK
WTL
WTLS
WTN
WTNG
WTNM
WTNO
WTNP
WTNPA
WTOD
WTP
WTPF
WTPF 3
WTR
WTRN
WTRP
WTRS
WTS
WTSA
WTSF
WTSO
WUA
WUF
WUP
WURST
WUSI
WVAS
WVI
WVoIP
WVPN
WWA
WWAN
WWAT
WWCE
WWJ
WWO
WWOM
WWRF
WWSI
WWT
WWTA
WWTW
WWVC
WWW
WWYP
WWZ
WWZA
WXE
X-OFF
X-ON
XA-FR
XA-SMDS
XCI
xDSL
XI
XML
XOT
XWI
Y
YAC
YAPA
YBY
YIP
YLT
YP
YPBX
YYP
z
ZBTSI
ZCZ
ZDL
ZFH
ZPD
ZPTC
ZTE
ZUD
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