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L
L
I
I
S
S
T
T
O
O
F
F
A
A
C
C
R
R
O
O
N
N
Y
Y
M
M
S
S
A
CRONYM
D
EFINITION
2.5G
two
-
and
-
a
-
half
-
generation
3CP
Command, Control and Communications Process (in
Appendix A, Technical)
3DES
triple data encryption standards
3G
third generation
3GPP
third generation partnership project
A
||
||||||||||||||
|||||||||||||||||||||||||| |||||||||||||| |||||||||||||| |||||||||||||||||| ||||||||||
AAA
administration, authorization, and authentication
AAL
ATM adaptation layer
AAN
application aware network
AATOS
Alternative Access to Operator Ser
vices
ABR
available bit rate
ACD
automatic call distributor
ACL
access control list
ACO
Administrative Contracting Officer
ACP
action control point
ACR
anonymous call rejection
ACS
Audio Conferencing Services
ACT
accounting control transaction
AD
M
asynchronous disconnected mode
ADPCM
adaptive pulse code modulation
ADR
alternate destination routing
ADR
alternate dispute resolution
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ADSL
asymmetric digital subscriber line
AERS
alternate enhanced redirect solutions
AES
advanced encryption standa
rds
AGC
Automatic Gain Control
|||||||||||||||||
|||||||| |||||||||||||||||||||| |||||||||||||| |||||||||||||||||| |||||||||||||||||||||||
|||||||||||||
AGN
AT&T Global Network
AGS
AT&T Government Solutions
|||||||||||||||||
|||||||| ||||||||||||||||
|||||| |||||||||||||||| |||||||||||||||||| |||||||||||||||||||||||
||||||||||||
AHC
agency hierarchy code
AHS
Application Hosting Services
AIOD
automatic identification of outward dialing
AIS
automated information system
ALC
agency local contact
ALDS
Applications Layer Data Service
ALG
application layer gateway
ALNP
aggregated line and node protection
AMI
alternate mark inversion
AMIS
audio message interface specification
AMPS
Advanced Mobile Phone Service
AMSC
American Mobile Satellite Corporat
ion
AMSS
Advanced Mobile Satellite Service
ANI
automatic number identification, automatic number information
ANIRA
AT&T’s network
-
based Internet protocol virtual private
network remote access
ANS
Automatic Noise Suppression
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ANSI
American National St
andards Institute
AOTDR
automated optical time domain reflectometer
AOTS
AT&T One Ticket System
APCO
Association of Public
-
safety Communications Officials
API
application programming interface
APN
access point name
APOC
advanced paging operators code
APS
automatic protection switching
AQL
acceptable quality level
AR
access router
ARACS
access router auto configur
a
tion system
ARM
AT&T Resource Manager
ARS
automatic route selection
AS
application server
ASA
adaptive sec
u
rity algorithm
ASC
accr
edited standards committee
ASCII
American Standard Code for Information Exchange
ASON
automatic switched optical network
ASN
AT&T switched network
ASP
applications services provider
|||||||||||
|||||||| |||||||||||||| ||||||||||| ||||||| |||||||||||||
|||||||||||
ASR
Automatic Speech
Recognition
ASRN
Agency service request number
ASTN
automatic switched transport network
ASYNC
asynchronous
ATB
all
-
trunks
-
busy
ATIS
Alliance for Telecommunications Industry Solutions
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ATM
asynchronous transfer mode
ATMF
asynchronous transfer mode forum
ATMS
Asynchronous Transfer Mode Service
ATO
authority to operate
AU
authorized users
AUP
acceptable use policy
AVI
audio visual interleave
AVM
anti
-
virus management
AVMS
Anti
-
virus Management Service
AVVID
Ar
chitecture for Voice, Video, and Integrated Data (Cisco
product name)
B
B8ZS
binary, 8 zero substitution line code
BBAA
broad band access arrangement
BBAS
Broadband Access Services
BBKUP&R
backup and restore
BBS
broadband switching system
BDM
bill
data mediation
BE
border edge
BE
border element
BECN
backward explicit congestion notification
BER
bit error ratio
BERT
Bit Error Rate Testing
BGAN
Broadband Global Area Network (Inmarsat service)
BGP
border gateway protocol
BITS
building integrat
ed timing system
BLSR
bidirectional line switched ring
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BM
O
Business Management Office
BMP
business maintenance platform
BNC
connector for coaxial cable
BOC
Bell Operating Company
BOD
bandwidth on demand
|||||||||
||||||||| |||| ||||||||||||||||
BOM
bill of materials
bps
bits per second
BPSR
bidirectional path switched ring
BR
basic router
BRI
basic rate interface
BRM
business reference model
BS
British standard
BSC
binary synchronous communication
BSS
Broadcast Satellite Services
BT
burst t
olerance
C
C&A
Certification and Accreditation
CA
Communications Assistant (Federal Relay Service)
CAD
-
CAM
computer
-
aided design and computer
-
aided manufacturing
CALEA
Communications Assistance for Law Enforcement Agencies
CAP II
computer access pr
otocol number II
CAS
channel associated signaling
CAS
cost accounting standards
CBB
common backbone
CBD
commercial business district
CBR
constant bit rate
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CBS
committed burst size
CBWFQ
class based weighted fair queuing
CCAMP
common control and mea
surement plane
|||||||||
|||||||||||||| ||||||||||||| |||||||||||
CCE
call control element
CCEP
NSA Commercial ComSec Endorsement Program
CCIR
International Radio Consultative Committee
CCITT
International Telegraph and Telephone Consultative
Committe
e
CCR
Central Contractor Registration
CCRT
customer care router tool
CCS
Contact Center Services
CCS
common channel signaling
CCSA
CheckPoint Certified Security Administrator
CCSE
CheckPoint Certified Security Engineer
CCTV
closed circuit televis
ion
CD
chromatic dispersion
CD
-
ROM
compact disk read only memory
CDA
Contracts Disputes Act
CDD
custom design document
CDG
code division multiple access (CDMA) Development Group
CDMA
code division multiple access
CDNS
Content Delivery Network Servic
es
CDPD
cellular digital packet data
CDPDS
Cellular Digital Packet Data Service
CDR
Call Detail Record
CDR
committed data record
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CDRL
Contract Data Requirements List
CDS
Cellular Dispatch Services
CDU
clock distribution unit
CDV
cell delay variati
on
CE
customer edge
CELP
code excited linear predictive
CERT
Computer Emergency Response Team
CES
Circuit Emulation Services
CFO
Chief Financial Officer
CFR
Code of Federal Regulations
CHS
Collocated Hosting Services
CIO
Chief Information Officer
CIPS
Converged Internet Protocol Services
CIR
committed information rate
|||||||
|||||||||||| ||||| |||||||||||||| ||||||||||||||
CISSP
Certified Information System Security Professionals
CITS
combat information transport system
CLEC
competitive loc
al exchange carrier
CLIN
Contract Line Item Number
CLLI
common language location identifier
CLNS
Connectionless Network Service
CLO
control link oscillator
CM
Configuration Management
CMC
common messaging calls
CMM
Capability Maturity Model
||||||
|||||
||||||||||||||||| |||||||||||||| ||||||||||| |||||||||||||||||||
CMMTS
Customer
-
Monitored Managed Transport Services
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CNAM
caller name
CNI
common network interface
CNM
customer ne
twork management
CNMC
Cable Network Maintenance Center
CNMS
Customer Network Management Services
C.O.
Contracting Officer
COAX
coaxial cable
COD
connection oriented data
codec
coder
-
decoder
ComPAS
Comparison of Publicly Available Services
COMSEC
c
ommunications security
CONOP
concept of operation
CONUS
contiguous United States
COOP
continuity of operations
COR
Contracting Officer’s Representative
CORBA
common object request broker architecture
COS
Class of Service
CoSS
Collaboration Support
Services
COT
cumulative outage time
COTR
Contracting Officer’s Technical Representative
COTS
commercial off
-
the
-
shelf
CoW
cell on wheels
||||||
|||||||||||||||||||||| ||||||||
CPAB
Contractor Provided and Agency Based
CPAL
Contractor Provided Agenc
y Location
CPC
calling party’s category
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CPCB
Contractor Provided and Contractor Based
CPCL
Contractor Provided Contractor Location
CPCS
Cellular/Personal Communications Service
CPDF
central personnel data file
CPE
customer premises equipment
CPO
Co
ntractor’s Program Organization
CPNI
customer proprietary network information
CPU
central processing unit
CRAC
computer room air conditioner
CRC
cyclic redundancy check
CRL
certification revocation list
CRM
customer relationship management
CRP
cust
omer routing point
CS
Combined Services
CSA
Communications Service Authorization
CSC
Customer Service Center
; Computer Sciences Corporation
CSDE
Customer Specific Design and Engineering
CSDES
Customer Specific Design and Engineering Services
CSDS
Ci
rcuit Switched Data Services
CSFM
custom spam filter management
||||||||||||
||||||||||||||||| |||||||||||||| |||||||||||||| |||||||||||||||||| ||||||||||||
CSIRT
Computer Security Incident Response Team
CSO
Customer Service Office
||||||||
||||||||
|||||||| |||||||||||||| |||||||||||||||
CSR
Customer Service Representative
CSR
customer specified routing
CSRA
customer specified routing and avoidance
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CSS
Circuit Switched Service
CSTA
computer supported telephony applications
CSU
channel service u
nit
CSU/DSU
channel service unit/data service unit
CSV
comma separated values
CTF
Convergence Task Force
CTI
computer telephony integration
CTP
Comprehensive Transition Plan
CTP
common test platform
CTS
Comprehensive Telecommunications Services
CTS
Consolidated Telecommunications Services
CUG
closed user group
CV
code violation
CVE
common vulnerability exposure
CVS
Cellular Voice Service
|||||||||||
|||||||||||||||| ||||||||||||||||||||| |||||||||||||| |||||||||||||
CWD
customer want date
CW
DM
coarse wavelength division multiplexing
D
DA
Domain Analysis
DAA
designated approving authority
DAC
dial around the cloud
DACS
digital access cross
-
connect systems
DAR
Designated Agency Representative
DARPA
Defense Advanced Research Agency
DAS
D
direct attached storage device
dB
decibel
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DBCES
dynamic bandwidth circuit emulation
|||||||||||
|||||||||||||||| ||||||||||||||||||||||| |||||||||||||
DBoR
database of record
DC
direct current
DCA
distributed component architecture
DCCS
digital c
ross connects systems
DCE
-
RPC
distributed computing environment
-
remote procedure calls
DCID
Director of Central Intelligence Directive
DCS
digital cross
-
connect switch
DCSS
digital conferencing switching system
DCTN
Defense Commercial Telecommunicat
ions Network
DDA
domain
-
defined attribute
DDR
data delivery rate
DEA
Drug Enforcement Administrator
DECNet
Digital Equipment Corporation Protocol
|||||||||||
|||||||||||||||||| ||||||||||| |||| |||||||||||||
DECT
disaster engineering connection tech
nology
DES
Data Encryption Standard
DFS
Dark Fiber Services
DHCP
dynamic host configuration protocol
DHS
Dedicated Hosting Services
|||||||||
||||||||||||||||||||| |||| |||||||||||||||||| ||||||||||||||
DID
direct inward dialing
DiffServe
TE
-
MAR
di
fferentiated service traffic engineering
-
maximum allocated
resource
DIRECT
disaster intelligent recovery engineering connection
technology
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DIS
draft international standard
DISA
Defense Information System Agency
DISCO
Defense Industrial Service Clearanc
e Office
DISN
Defense Information Services Network
DITCO
Defense Information Technology Contracting Office
DITSCAP
DoD Information Technology Security Certification and
Accreditation Process
DLCI
data link connection identifier
DLS
data link switching
DMRC
device monthly recurring charge
DMS
Defense Message System
DM
T
Distributed Mission Training
DMVPN
dynamic multipoint virtual private network
DMZ
demilitarized zone
DNA
dynamic network application
DNI
dialed number identification
DNIS
Destina
tion Number (Dialed Number) Information Service
DNRC
device nonrecurring charge
DNS
domain name service
DOCSIS
data over cable service interface specifications
DoD
Department of Defense
DOD
direct outward dialing
DOS
denial of service
DPM
defects p
er million
DR
disaster recovery
DRM
data reference model
DRO
disaster recovery option
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DROT
Disaster Recovery Operations Team
DS
digital signal level n
DS0
digital signal zero
DSA
digital signature algorithm
DSCP
differentiated services code point
DSL
digital subscriber line
DSLAM
digital subscriber line access multiplexer
DSR
daily system report
DSS
digital signature standard
DSS1
digital subscriber signaling system number 1
DSU
data service unit
D
SX
Digital Signal Cross
-
connect
DTE
data
terminal equipment
DTMF
dual tone multifrequency
DTS
Dedicated Transmission Services
; Diplomatic
Telecommunications Service
DUNS
Data Universal Numbering System
DVD ROM
digital video disk read only memory
DWDM
dense wavelength division multiplexing
E
E911
enhanced 911
E
-
LAN
Ethernet private local area network
E
-
LINE
Ethernet private line
E
-
POP
electronic
-
point of presence
ECOS
end
-
to
-
end Class of Service
ECC
Emergency Communication Center
ECR
enhanced call routing
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ECRM
electronic customer re
lationship management
ECS
Electronic Commerce Service
ECTF
Enterprise Computer Telephony Forum
EDGE
enablement and d
e
bugging of growing ente
r
prises
EDGE
enhanced data for GPRS evolution
EDRO
enhanced diversity routing option
EFMA
Ethernet in the Fi
rst Mile Alliance
EFT
electronic funds transfer
EGP
exterior gateway protocol
EIA
Electronic Industries Alliance
EIGRP
enhanced interior gateway routing protocol
EIT
electronic information technology
EM
element manager
EMEA
Europe, Middle East, and
Africa
EMS
Electronic Messaging Services
EMS
element management systems
EN
Event Notification
EOP
Executive Office of the President
EOS
elements of service
EPA
Environmental Protection Agency
EPCRA
Emergency Planning and Community Right
-
to
-
Know Act
of
1986
ePO
ePolicy Orche
s
trator
EPR
emergency performance routing
EPRO
e
-
Procurement Requisition Processing
ER
extended reach
ER
MS
Email Response Management Service
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ERP
Emergency Response Plan
ERP
enterprise resource planning
ERTNR
enhanced real
-
time network routing
ES
error second (optical)
ESCON
enterprise system connection
ESF
extended superframe
ESMR
enhanced specialized mobile radio
EthS
Ethernet Services
ETR
external timing reference
ETS
emergency telecommunications support
ETSI
Eur
opean Telecommunications Standard Institute
EVC
Ethernet virtual connection
, Ethernet virtual circuit
F
FAR
Federal Acquisition Regulation
FASTAR
fast automatic restoration system
FAX
facsimile
FB
fixed bandwidth
FC
fiber channel
FCC
Federal Com
munications Commission
FCIA
Fiber Channel Industry Association
FCP
fiber channel protocol
|||||||||||
|||||||||||||| |||||||||||||| ||||||||| |||||||||||||||||||||||
FDDI
fiber distributed data interface
FDM
frequency division multiplexing
FDMA
freq
uency division multiple access
FDP
fiber distribution panel
FEA
Federal Enterprise Architecture
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FEC
forward error connection
FECN
forward explicit congestion notification
FedCIRC
Federal Computer Incident Response Center
FED
-
STD
Federal Standard
FFP
firm fixed price
FIB
forwarding information base
FICON
fiber connectivity
FIPS
Federal Information Processing Standard
FIRST
Forum of Incident Response and Security Team
FISMA
Federal Information Security Management Act
Fm
-
Fm
Find Me Follow Me
FO
f
ail open
FOA
firm order acceptance
FOC
full operating capability
FOCN
firm order commitment notice
FODM
fail open detection and mitigation
FOIA
Freedom of Information Act
FOTS
fiberoptic transport system
FPMR
federal property management regulations
FPR
Final Proposal Revision
FR
frame relay
FRAD
frame relay access device
FRF
Frame Relay Forum
FRIP
Functional Requirements Implementation Plan
FRS
Frame Relay Services
FSDP
fiber service delivery point
FSO
free space optics
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FSP
free space ph
otonics (same as FSO)
FSS
Fixed Satellite Services
FT1
fractional t1
FT3
fractional t3
FTAS
fiber threat analysis system
FTP
file transfer protocol
FTR
Federal Telecommunications Recommendations
FTS
Federal Technology Service (Federal Telecommunicat
ions
Service prior to October 1997)
FTS2001
Federal Telecommunications System 2001
FTTP
fiber to the premises
FUSF
Federal Universal Service Fund
FWTS
Federal Wireless Telecommunications Service
G
GAM
global account manager
||||||||||||||
|||||||||
|| |||||||||||||| ||||||||||||||||||||||| ||||||||||||||
GAO
General Accounting Office
GbE
Gigabit Ethernet
Gbps
Gigabit per second
Gbyte
Gigabyte
GCL
Government Communications Laboratory
GCRA
generic cell rate algorithm
GCSC
Global Customer Suppo
rt Center
GEICO
Government Employees Insurance Company
GETN
Government Education & Training Network
GETS
Government Emergency Telecommunications Service
GFE
Government furnished equipment
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GFMS
global fraud management system
GFP
Government furnished p
roperty (formerly Government
furnished equipment)
GFP
generic framing procedure
GGSN
gateway general support node
GHz
Gigahertz
GIAC
Global Information Assurance Certification
GIDC
global internet data center
GIF
graphics interchange format
GigE
Gigabit Ethernet
GIGR
Gigabit Internet gateway router
GMIS
government managed internet service
GMPLS
generalized multiprotocol label switching
GMS
Government Management Service
GNOC
Global Network Operations Center
GoS
grade of service
GOTS
Govern
ment
-
Off
-
The
-
Shelf
GPMP
General Project Management Plan
GPRS
General Packet Radio Services
GPS
global positioning system
GQ
generational qualifier
GRE
general routing encapsulation protocol
||||||||
||||||||||| |||||||||||||||||| |||||||||
GSA
Gen
eral Services Administration
GSAM
GSA Acquisition Manual
GSA FTS
General Services Administration, Federal Technology
Service
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GSAR
GSA Regulation
GSII
Government Services Information Infrastructure
GSM
Global
System For Mobile Communications
|||||||||
||||||||||| |||||||||||||||| ||||||||||||
G
SS
AT&T Global Strategic Sourcing
GTCOMM
globally transportable satellite packages
GUI
graphical user interface
GVTP
General Verification Test Plan
H
H
-
VPLS
hierarchical VPLS
HazMat
hazardous materia
ls
HAZWOPER
Hazardous Waste Operations and Emergency Response
HBA
host bus adapter
HCO
hearing carry over
HDPE
high
-
density polyethylene
HF
high frequency
HID
host intrusion detection
HITS
Hawaii Information Transfer System
HLR
home location regist
er
HPC
high probability of completion
HPPI
high performance parallel interface
HR
human resources
HSD
high
-
speed data
HSDPA
high
-
speed downlink packet access
HSPS
High
-
Speed Packet Services
HSSI
high speed serial interface
HTML
HyperText Markup Lan
guage
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HTTP
HyperText transfer protocol
HTTPS
HyperText transfer protocol secure
HVAC
heating, ventilation, and air conditioning
I
I/O
input/output
IA
Information Assurance
IAC
Interagency Committee
IAM
initial address message
IA/RA
Interactive An
nouncement/Response Arrangement
|||||||||||||||||||
|||||||||||| |||||||||||||||| |||| ||||||||||||||||||||||||||
IC
integration contractor
ICB
individual case basis
ICC
Implementation Control Center
ICI
inter carrier interface
ICM
Intelligent Conta
ct Management (Cisco)
ICMP
internet control message protocol
ICP
intelligent call processing
ICS
incident command structure
||||||
|||||||||||||||||||| ||||||| ||||||||||||||||||||||||||| ||||||||||||||||||||
ID
identification (user)
IDC
Internet Da
ta Center
IDIQ
indefinite delivery, indefinite quantity
IDLH
immediately dangerous to life or health
i
-
DNS
Intelligent
-
Delivery Network Services
IDPS
Intrusion Detection and Prevention Service
IDS
intrusion detection systems
IDSL
ISDN DSL
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IEC
Inter
national Electrotechnical Commission
IEEE
Institute of Electrical and Electronics Engineers
IEMS
International Emergency Multimedia Service
IETF
Internet Engineering Task Force
IFS
Internet Facsimile Service
iGEMS
Integrated Global Enterprise Manageme
nt System
IGMP
Internet group management protocol
IGRP
interior gateway routing protocol
IIF
interworking and interoperability function
ILEC
incumbent local exchange carrier
IM
inverse multiplexing
IM (UMS)
instant messaging
IMA
inverse multiplexing
over ATM
IMAP
Internet message access protocol
IMC
Interagency Management Council
IMP
Implementation Management Plan
IMS
Internet protocol multimedia subsystem
IMS
incident management system
IMSI
International Mobile Subscriber Identity
IMT
intern
ational mobile telecommunications
INC
international carrier
INCITS
International Committee for Information Technology
Standards
INMARSAT
International Maritime Satellite Organization
INRS
Incident Response Service
INSTAR
IP Network Systems and Asset R
esource
INT
integer function
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IOC
inter
-
office channel
IOM
integrated order manager
IOPS
input/output per second
IOS
intelligent optical switch
IP
Internet protocol
IPA
identity proofing agent
IPBE
Internet protocol border element
IPeFR
Internet p
rotocol
-
enabled frame relay
IPL
international private line
IPM
interpersonal messaging
IPPM
Internet Protocol (IP) Protocol Network
IPS
Internet protocol service
IPSec
IP Security
IPT
Integrated Product Team
IPTelS
IP Telephony Service
IP
-
VPNS
I
nternet Protocol
-
Virtual Private Network Service
IPVTS
Internet Protocol Video Transport Services
IPX
Internet protocol exchange
IR1
-
SLM
intermediate reach
–
single
–
longitudinal mode
IRAS
integrated routing assignment system
I.R.C.
Internal Revenu
e Code
IRFC
Internet route free core
|||||||
|||||||||||||| |||||||||||||||||| ||||||||
IRS
Internal Revenue Service
IRU
indefeasible rights of use
IS
-
41
North American Standard for Wireless Telecommunications
Network Signaling
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ISARS
information secu
rity analysis and requirements specif
i
cation
ISC
inter system channel
iSCSI
Internet protocol small computer system interface
ISDN
integrated services digital network
ISDNUP
ISDN user part
IS
-
IS
intermediate system to intermediate system
ISM
informa
tion security manager
ISN
Internet Security News Network
ISO
International Organization for Standardization
ISP
internationally standardized profile; also, Internet service
provider
ISSEP
information systems security engineering professional
IT
inf
ormation technology
ITFS
international toll
-
free service
|||||||
|||||||||||||||||||| |||||||||||||||||||| ||||||||||||||||||||||| ||||||||||||
ITS
Institute for Telecommunication Sciences
ITU
International Telecommunications Union
ITU
-
T
International
Telecommunications Union
-
Telecommunications
ITU
-
TSS
International Telecommunications Union
-
Telecommunications Service Sector
IVR
interactive voice response
IXC
inter
-
exchange carrier
J
JIT
just
-
in
-
time
JPEG
Joint Photographic Experts Group
K
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kb
ps
kilobit per second
KP
Key Personnel
KPI
Key Performance Indicator
L
L2TP
Layer 2 tunneling protocol
L2VPNS
Layer 2 Virtual Private Network Services
LAN
local area network
LAP
link access protocol
LAPB
link access protocol basic for X.25
LAPD
l
ink access protocol for D channel signaling (ISDN)
LATA
local access and transport area
LBR
low
-
bit rate
LC
-
CELP
low complexity
-
code excited linear predictive
LCAS
link capacity adjustment scheme
LCD
liquid crystal display
LDAP
lightweight director
y access protocol
LDIF
lightweight directory access protocol data interchange
format
LDP
label distribution protocol
LEC
local exchange carrier
LEO
low earth orbit
LERG
local exchange routing guide
LFD
large file download
LGC
local government contac
t
LH
long haul
LLDS
Link Layer Data Service
LMDS
Local Multipoint Distribution System
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LMR
land mobile radio
LMRAS
Land Mobile Radio Access Services
LMRS
Land Mobile Radio Services
LND
last number dialed
LNP
local number portability
LNS
local netwo
rk service
LOH
line overhead
LONESTAR
local network services technology recovery
LPR
local primary reference
LR
long reach
LR1
-
SLM
long reach
–
single
–
longitudinal mode
LSMR
local span mesh restoration
LSO
local serving offices
LSP
label switch p
ath
LWS
Lucent Worldwide Services
M
MAA
Metropolitan Area Acquisition
MAC
mandatory access control
M/A/C
move/add/change
MAN
metropolitan area network
MAP
mobile application part
MAPI
message application program interface
MAR
maximum allocation r
esource
MARC
multi
-
Agency radio communications
MARO
Managed Internet Serv
i
ce Access Redundancy Options
MARO
-
BNR
Managed Internet
Service
Access Redundancy Options
-
Backbone Node Redundancy
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MAS
messaging applications server
MAS
Multiple Award Schedule
Mbps
megabit per second
MBS
maximum burst size
MCB
management control bridge
MCC
migration control center
MCR
minimum cell rate
MCS
mobile switching center
MCS
measurement collection server
MCSE
Microsoft Certified Systems Engineer
MCU
multipoint
control unit
MEAS
Managed E
-
Authentication Service
MEF
Metro Ethernet Forum
MEGACO
media gateway control
MEN
metro Ethernet network
MF
multifrequency
MFAB
major failure action binder
MFI
multifunction interpreter
MFS
Managed Firewall Service
MGCP
media gateway control protocol
MIB
management information base
MIDS
Managed Intrusion Detection Service
MIME
multipurpose Internet mail extensions
MIP
Major Incident Plan
MIP
Migration Interconnection Plan
MIS
Managed Internet Service
MITT
Medical
Information Technology Transition
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MLPP
multilevel precedence and pre
-
emption
MMC
multimedia commands
MMDS
Microwave Multipoint Distribution Service
MMP
Migration Management Plan
MMRC
maintenance monthly recurring cost
MMS
Multimedia Messaging Service
MNS
Managed Network Services
MOPS
management and operations
MOS
mean opinion score
MOU
minutes of use
MPEG
Moving Picture Experts Group
MP
-
iBGP
multiprotocol internal border gateway protocol
MPIN
Marketing Partner Identification Number
MPLS
multip
rotocol label switching
MPOP
minimum point of penetration
MRC
monthly recurring charge
MRG
minimum revenue guarantee
MS
media server
MS
MicroSoft
MS
-
SQL
Microsoft
-
Structured Query Language
MSA
Metropolitan Statistical Area
MSA
multiservice access
MSC
mobile switching center
MSCC
managed services support center
MSE
multiservice edge
MSP
multiservice platform
MSPRing
multiplex shared section protection ring
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MSS
Mobile Satellite Service
MTA
message transfer agent
MTBF
mean time between failures
||||||||||||
||||||||||||||||| |||||||||||||| |||||||||||||| |||||||||||||| |||||||||||||
MTP
message transfer part
MT
S
Managed Telecommunications Services
MTSO
Mobile Telephone Switching O
ffice
MTSP
multitier security profiles
MTSS
Managed Tiered Security Services
MTTR
mean time to repair
MTTR
mean time to restore
MUA
mail user agent
MUX
multiplexor
MWI
message waiting indicator
MWLANS
Multimode/Wireless Local Area Network Servic
es
N
NAAR
next available agent routing
NACSZ
name, address, city, state, zip code
NAICS
North American Industry Classification System
NANP
North American Numbering Plan
NANPA
North America Numbering Plan Administration
NASA
National Aeronautics and
Space Administration
NAT
network address translation
NBIP
-
VPNS
Network
-
Based Internet Protocol Virtual Private Network
Service
NCAS
non
-
call associated signaling
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NCP
network control point
NCS
National Communications System
NDC
National Data Center
NDO
Network Duty Officer
NDR
Network Disaster Recovery
NDS
Network Deployment Services (now called NIDS)
NDS
Non
-
Developmental Software
NE
network element
NEBS
Network Equipment Building Systems
NEC
Nippon Electric Company
NECA
National Exchange
Carrier Association
NESV
network edge switch vehicle
NetDB
network debugger
NFM
network fault management
NFPA
National Fire Protection Association
NG
next generation
NGBE
network gateway border element
NGN
next generation network
NIACAP
National I
nformation Assurance Certification and
Accreditation Process
NIC
network interface card
NIC
network information centralizer
NID
network intrusion detection
NIDR
network information discovery and retrieval
NIDS
Network Integration & Deployment Services
NII
national information infrastructure
NISCAP
National Information Security Certification and Accreditation
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Process
NISPOM
National Industrial Security Program Operating Manual
NIST
National Institute of Standards and Technology
NIU
Network
Interfac
e Unit
NIUF
National ISDN Users Forum
NLDS
Network Layer Data Service
NLSP
netware link services protocol
NM
network management
NMC
Network Management Center
NMC
network management control
NMLI
native mode local area network interconnection
NMM
ne
twork monitoring and management
NMS
network management server
NMS
Network Management System
NNI
network
-
network interface
NNTP
network news transfer protocol
NOC
Network Operations Center
NPA
Numbering Plan Area
NPM
National Project Management
NP
P
Natural Presenter Package
NPR
National Performance Review
NPV
net present value
NRA
network remote access
NRC
non
-
recurring charge
NRE
network routing engine
NRIC
National Reliability Industry Council
NRIC
Network Reliability and Interoperability Co
uncil
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NROC
Northern Regional Operations Center
NS/EP
National Security/Emergency Preparedness
NS/EPCC
National Security/Emergency Preparedness Control Center
NSA
National Security Agency
NSC
network services complex
NSCM
Networx sales channel manager
NSIE
network security information exchange
NSIS
next steps in signaling
NSP
not separately priced
NSS
Network Scanning Service
NSTAC
National Security Telecommunications Advisory Committee
NT
network termination
NT
number translation
NT
non
-
tracea
bility
NTIA
National Telecommunications and Information
Administration
NTMS
National Telecommunications Management Structure
NTP
network time protocol
NTSC
National Television Standards Committee
NUI
network user identification
NXX
office code where
n=2
-
9 and x=0
-
9
NZDF
non
-
zero dispersion fiber
NZDS
non
-
zero
dispersion shifted
O
OA
optical amplifier
OADM
optical add
-
drop multiplexer
OAM
operations, administration, and management
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OAMP
one
-
way active measurement protocol
OAM&P
operations, adm
inistration, maintenance and provisioning
OASIS
Organization for the Advancement of Structured Information
Standards
OC
optical carrier
OCD
operational capability demonstration
OCDD
online call detail data
OCN
Operating Company Number
OC
-
N
optical ca
rrier level
-
N
OCONUS
outside contiguous United States
OCP
optical control plane
OEO
optical
-
electrical
-
optical
OFDM
orthogonal frequency division multiplexing
OGP
Office of Government
-
wide Policy
OIF
Optical Internetworking Forum
OMB
Office of Ma
nagement and Budget
ON
optical networking
OOB
out
-
of
-
band
OPM
Office of Personnel Management
OPS
One
-
Way Paging Service
OPT
Office of Priority Telecommunications
ORT
operations readiness test
OS
operating system
OSE
open system environment
OSF
Ope
n Software Foundation
OSI
open systems interconnect
OSNR
optical
-
signal to
-
noise ratio
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OSPF
open shortest path first
OSS
operational support system
OSWF
onsite workforce
OTA
over the air
OTAR
over
-
the
-
air
-
rekeying
OTC
Office of the TSP Coordinator
OTDR
optical time domain reflectometer
OTGR
optical transport generic requirements
OTM
Office of Transition Management
OTM
(SONET)
optical terminal multiplexer
OTN
optical transport network
OVO
open view operations
OVPN
optical virtual private net
work
OWS
Optical Wavelength Service
P
PAB
Personal Address Book
PagS
Paging Service
PAL
phase alternation by line
PA
O
Product and Assurance Office
PAR
Personnel Action Request
PARTIES
Protected Area Run Time Interface Extension Services
PAT
por
t address translation
PAV
percentage allocation value
PBIP
-
VPNS
Premises
-
Based
-
Internet Protocol Virtual Private Network
Services
PBSA
Performance
-
Based Service Acquisition
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PBX
Private Branch Exchange
PC
personal computer
PCE
path computation element
PCM
pulse code modulation
PCMCIA
Personal Computer Memory Card International Association
PC(O)
permanent connection (optical)
PCO
Procuring Contracting Officer
PCR
peak cell rate
PCS
Personal Communications Service
PDA
personal digital assistant
P
DF
portable document format
PDN
pseudo destination number
PDU
protocol data unit
PDU (DHS)
power distribution unit
PE
provider edge
PED
price engine documentation
PEP
performance enhancement proxy
PERCEVAL
performance evaluator
PFL
performance fact
or level
PG
peripheral gateways
||||||
|||||||||||| |||||||||||| |||||||||||||||||||||
PIC
primary interexchange carrier
PICC
pre
-
subscribed interexchange carrier charge
PIN
personal identification number
PI
P
Picture
-
in
-
Picture
PIR
peak information
rate
PKCS
Public Key Cryptography Standards
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PKI
public key infrastructure
PL
private line
PLS
private line service
PLxML
Phone Line Extensible Markup Language
PMD
polarization mode dispersion
PMM
price management mechanism
PMO
Program Management O
ffice
||||||||||||||
||||||||||||||| ||||||||||||||||||||||| ||||||||||||||||||| ||||||||||||| |||||||||||||
PMP
Program Management Plan
PNBE
peer network border element
POC
Point Of Contact
POCSAG
Post Office Code Standardization Advisory Group
POH
path overhead
PON
passive optical network
POP
point of presence
POP3
Post Office Protocol Version 3
POP4
Post Office Protocol Version 4
POR
plan of record
POS
packet over SONET
POSAG
Post Office Standardization Advisory Group
POSIP
packet over SON
ET interface processor
POTS
plain old telephone service
PPA
Pollution Prevention Act
PPIRS
past performance information retrieval system
PPP
point to point protocol
PPSN
public packet switched network
PPSNGR
public packet switched network generic req
uirement
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PPTP
point to point tunneling protocol
PRI
primary rate interface
PRM
performance reference model
PRQS
Performance, Reliability, and Quality Committee
PRS
primary reference source
PSAP
public safety answering point
PSMP
Project
-
Specific Man
agement Plan
PSN
public switched network
PSS
Packet Switched Service
PSTN
public switched telephone network
PTMP
Preliminary Transition Management Plan
PTSC
Packet Technology and Systems Committee
PTSC
-
SAC
Packet Technology and Systems Committee on S
ignaling,
Architecture, and Control
PTT
Postal Telephone and Telegraph
PVC
permanent virtual circuit
PWE
pseudo wire emulation
Q
QA
quality assurance
Q
-
i
-
Q
Q
-
tag in Q
-
tag
QoS
quality of service
QWERTY
Standard Layout Keyboard
R
RA
Regist
ration Authority
RADIUS
Remote Authentication Dial
-
up Service
RAID
Redundant Arrays of Inexpensive Disks
RAM
roaming authorization per mobile MSC
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RAMP
radio access mail protocol
RAPID
restoration and provisioning integrated design
RBGAN
regional br
oadband global area network
RCS
routing control system
RD
Requirements Development
RD
-
LAP
radio data
-
link access protocol
RDC
Regional Data Center
RDR
-
A
remote data replication for archiving
RDR
-
M
remote data replication for mirroring
RESP ORG
resp
onsible organization
RF
radio frequency
RFC
Request for Comment
RI
reporting interval
RIP
routing information protocol
RM
Requirements
Management
RMB
Risk Management Board
RMP
risk management process
RNC
restoration node controller
ROE
right of
entry
ROW
rest of world
RPH
resource priority header
RPI
routing pattern index
RPR
resilient packet ring
RRAP
repetitive routing attempt procedure
||||||||
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RSA
rural service area
RSVP
resource reservat
ion setup protocol
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RT
route target
RTAP
real
-
time attack prevention
RTCP
real
-
time transport control protocol
|||||||||
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RTNR
real
-
time network routing
RTO
recovery time objectives
RTP
real
-
ti
me protocol
RTP
reliable transport profile
RTP
real
-
time transport protocol
RTT
radio transmission technology
RUBY
rule building capability
S
SAC
Service Access Code
SAC
signaling, architecture, and control
SAFER
split access flexible egress routi
ng
SAG
Senior Advisory Group
SALT
Speech Application Language Tags
SAM
SCSI
-
3 Architecture Model
SAN
storage area networks
SANS/FBI
SysAdmin, Audit, Network, Security Institute/Federal
Bureau of Investigation
||||||||
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SASS
Shared Access for Switched Services
SatAA
satellite access arrangement
SatAS
Satellite Access Service
SB
service broker
SBP
serial bus protocol
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SB/SDB
Small Business/Small Disadvantaged Business
SBU
sensitive but unclassifie
d
SC
service coordinator
SC (O)
switched connection (optical)
||||||||
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SCAMP
security call analysis and monitoring platform
SCCP
skinny client control protocol
SCE
service creation environment
SCI
s
ensitive compartmented information
SCIF
Sensitive Compartmented Information Facility
SCR
selective call rejection
SCR
sustained cell rate
||||||||||||
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SCSI
small computer system interface
SDDN
software defined data network
SDH
synchronous digital hierarchy
SDI
Strategic Defense Initiative
|||||||||||
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SDLC
synchronous data link control
SDN
software defined network
SDN
-
NRA
Soft
ware Defined Network
-
Network Remote Access
SDN
-
SMS
Software Defined Network
-
Service Management System
SDP
Service Delivery Point
SDPP
Service Delivery Project Plan
SDS
Switched Data Service
SDSL
Symmetric digital subscriber line
SECAM
Système Electro
nique Couleur Avec Memoire
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SED
service enabling device
SE
MP
Systems Engineering Management Plan
||||||||
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SES
SCSI enclosure services
SES (OWS)
severe error seconds
SETA
system engineering and technical
assistance
SF (SONET)
super frame format
SFP
Small Form
-
factor pluggable optics
SFTP
secure file transfer protocol
SGSN
serving GPRS support node
SHA
secure hash algorithm
SIA
Site Interface Agreement
SIC
service initiation charge
|||||||
|||
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SIM
subscriber identity module
SIMPLE
Session Initiation Protocol and Presence for Instant
Messaging Leveraging Extensions
SINA
static integrated network access
SIOP
-
ESI
single integrated operati
onal plan
-
extremely sensitive
information
SIP
session initiation protocol
SIPUA
session initiation protocol user agent
SLA
Service Level Agreement
SLM
Statistical Language Models
SLO
Service Level Objective
SMC
SCSI
-
3 medium changer commands
SMD
Su
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SMDI
simple message desk interface
SME
subject matter expert
SMEMS
Secure Managed Email Services
SMIR
Single
-
mode
Fiber,
Intermediate
Range
SMOLTS
single mode optical line test sets
SMF
single
-
mode fiber
SMS
service mana
gement system
SMS
Short Messaging Service
SMSC
Short Messaging Service Center
SMTP
simple mail transfer protocol
S/N
signal
-
to
-
noise
SNA
system network architecture
|||||||
|||||||||||| ||||||||||| |||||||||||||||||
SNI
SNA network interconnect
SNI
A
Storage Networking Industry Association
SNMP
simple network management protocol
SNOC
Secure Network Operations Center
SNPP
simple network paging protocol
SNRC
service node routing complex
SO
Service Order
SO
Special Operations
SOA
service oriented
architecture
|||||||||||
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SOAP
simple object access protocol
|||||||||
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SOC
Service Order Confirmation
SOCN
Service Order Completion Notice
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SOH
section overhead
SOHO
small office, home office
SoIP
Services over Internet Protocol
||||||||||||
|||||||||||||| ||||||||||||||||||| ||||||||||||||||||||||| ||||||||||||
SONET
synchronous optical network
SONETS
synchronous optical network service
s
SOP
security operating procedures
SOSS
server and operating system support
||||||
||||||||||||| |||||||||||||||||||
SPAWAR
Space & Naval Warfare Systems Command (U.S. Navy)
SPC
soft permanent connection
SPC
-
1
SPC Benchmark
-
1
SPC (SS)
Storage Perfo
rmance Council
SPE
SONET payload envelope
SPF
Shortest Path First
SPIT
spam over Internet protocol telephony
SPO
Strategic Planning Office
SPOC
single point
-
of
-
contact
SPS
standard positioning service
SPX/IPX
sequenced packet exchange/internet p
acket exchange
SQL
service quality level
SQL
Structured Query Language
SQRT
square root function
SR
short reach
SRM
service component reference model
SR
-
MLM
short reach multi
-
longitudinal mode
SS
Storage Services
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SS7
Signaling System 7
SSA
serial
storage architecture
SSA
Source Selection Authority
SSAA/SSP
System Security Authorization Agreement/System Security
Plan
SSF
standard single
-
mode fiber
SSH
secure shell
||||||||
|||||||||||| ||||||||||| |||||||||||||||
SSL
Secure Sockets Layer
SSM
Statistical Semantic Models
ST
scheduled transfer
STA
SCSI Trade Association
||||||||
|||||||||||||| |||||||| ||||||| ||||||||||||||||||
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STM
-
N
synchronous transport mod
e level N
STP
shielded twisted pair
STS
synchronous transport signal
STS
-
N
synchronous transport signal Level
-
N
STU
-
III
secure telephone unit III
STSN
speech to text services network
SVC
switched virtual circuit
SVS
Switched Voice Service
SWC
Serv
ing Wire Center
T
TA
terminal adaptor
TA
token authentication
TACACS
Terminal Access Controller Access Control System
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TALS
time division multiplexing (TDM) access line service
TAP
telocator alphanumeric protocol
TAP
traffic analysis platform
TAPI
telephony application program interface
TAPS
ticket analysis performance system
TAS
Traffic Analysis Service
TB&R
tape backup and restore
TCB
technical control bridge
TCC
Transition Control Center
TCIF
Telecommunications Industry Forum
TCM
traffic c
apacity management
TCO
TSP Coordinator’s Office
TCO
total cost of ownership
TCOS
traveling classmark
TCP
transmission control protocol
TD
transport demultiplexing
TDD
Telecommunications Device for the Deaf
TDD/TTY
Telecommunications Device for the
Deaf/Teletypewriter
TDM
time division multiplexing
TDMA
time division multiple access
TE
traffic engineering
TE
terminal equipment
TELNET
Terminal
-
remote Host Protocol Program
TE
-
MAR
traffic engineering
-
maximum allocated resources
TESP
telecommunica
tions electric service priority
TFMM
toll
-
free multimedia
TFS
Toll
-
Free Service
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TIA
Telecommunications Industries Association
TIFF
Tag Image File Format
||||||
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TIMO
Transition, Implementation, Mig
ration Office
||||||||||||
||||||||||||||||| |||||||||||||| |||||||||||||||||||| ||||||||||||| |||||||||||||||
TIN
Taxpayer Identification Number
TKIP
temporal
key
integrity
protocol
TLS
transport layer security
TMF
TeleManagement Forum
TMN
total ma
nagement network
TMO
Technology Management Office
TMP
Transition Management Plan
|||||||||
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Tn
trunk level n
TNPP
telocator net
work paging protocol
TO
task order
TOD
time of the day
TOF
technical order form
TOH
transport overhead
TOPS
Telecommunications Ordering and Pricing System
TP
Transition Plan
TP (Billing)
FTS Non
-
Itemized Purchase Order
TPA
TP Agreement
TPS
Two
-
Wa
y Paging Service
TRACS
Total Router A
c
cess Configuration Sy
s
tem
TRM
Technical Reference Model
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TS
Telecommunications Services
, Trade Study
TSA
Transportation Security Administration
, Time Slot Alignment
TSAA
terminating switched access arrangement
T
SAPI
telephony services application program interface
TS/SCI
Top Secret/Sensitive Compartmented Information
TSG
timing signal generator
TS
I
Time Slot Interchange
TSNOW
transport service now
TSP
telecommunications service priority
TSR
terabit switch
router
TSS
telecommunications service sector
TTR
Time to Restore
TTS
text to speech
TUI
telephony user interface
TWS
Teleworking Services
U
UBI
unique billing identifier
UBR
unspecified bit rate
UBS
unclassified but sensitive
UDP
user datagram
protocol
UFR
unspecified frame relay
UI
user interface
UIFN
Universal International Free Phone Number
UITN
Universal International Toll
-
Free Number
ULH
ultra longhaul
UM
unified messaging
UMS
Unified Messaging Services
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UMTS
Universal Mobile Teleco
mmunications System
UN
United Nations
UNI
user
-
to
-
network interface
UPS
uninterruptible power supply
UPSR
unidirectional path switch ring
URL
uniform resource locator
US
-
CERT
United States
-
Computer Emergency Readiness Team
USC
United States Code
US
F
Universal Service Fund
USNO
United States Naval Observatory
|||||||||
||||||||||| ||||||||||| ||||||||||||||||||||||
UTC
universal time code
UTP
unshielded twisted pair
V
V&H
vertical and horizontal coordinates
VAS
value added service
VBR
variab
le bit rate
VBR
-
NRT
variable bit rate
-
non real time (also known as NRT
-
VBR)
VBR
-
RT
variable bit rate
-
real time
VC
virtual circuit
VC (SONET)
virtual container
VCAT
virtual concatenation
VCC
virtual channel connections
VCO
voice carry over
VESDA
ver
y early smoke detection apparatus
VFRnrt
variable frame rate
-
non real time
VFRrt
variable frame rate
-
real time
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VIF
vertical inlaid fiber
VINES
Virtual Integrated Network Service
VIP
verification internet protocol
VIS
Voice Information System
VLAN
vi
rtual local area network
VLDB
very large database
VNS
Victim Notification System
VoATM
voice over asynchronous transfer mode
VOD
video
-
on
-
demand
VoFR
voice over frame relay
VoIP
voice over Internet protocol
VoIPTS
Voice over Internet Protocol Trans
port Services
VPAT
Voluntary Product Accessibility Template
VP/VC
virtual path/virtual channel
VPIM
voice profile for Internet mail
VPLS
Virtual Private Local Area Network Service
VPN
virtual private network
VPNMon
Virtual Private Network Monitoring
VPVN
virtual private voice network
VPWS
Virtual Private Wire Service
VRF
virtual routing and forwarding
VRU
voice response unit
VS
Voice Services
VSAT
very small aperture terminal
VSR
very short reach
VSS
Vulnerability Scanning Service
VT
virtu
al tributary
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VT1.5
Virtual Tributary 1.5
VTS
Video Teleconferencing Services
VTU
Video Terminal Unit
VXML
voice eXtensible markup language
W
W
-
CDMA
wideband
-
code division multiple access
WACFO
where available commercially from offeror
WAN
wide a
rea network
WAP
wireless application protocol
WCS
Web Conferencing Services
WCTP
wireless communications transfer protocol
WDM
wavelength division multiplexing
WDPDS
Wireless Digital Packet Data Service
WEP
wireless encryption protocol
WEP (TWS)
wir
ed equivalent privacy
WFM
workforce management
WGI
within grade increase
WiFi
wireless fidelity
WISP
wireless Internet service provider
WIPN
Wireless Private Network
WLAN
wireless local area network
WLNAA
wireline access arrangement
WLNAS
Wirelin
e Access Service
WLSAA
wireless access arrangement
WLSAS
Wireless Access Service
WMM
wireless fidelity multimedia
WNCC
Wireless Network Control Center
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WORM
write once, read many
WPA
Works Progress Administration
WPS
Wireless Priority Service
WRED
weighted random early detection
WWW
worldwide web
WZ1
World Zone 1
X
XML
Extensible Markup Language