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Zines/phrack/43/25.txt
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==Phrack Magazine==
Volume Four, Issue Forty-Three, File 25 of 27
{Acronyms Part V}
S Date and time report received.
S Seconds
S Send toscreener
S Sleeve
S Start dial signal
S&E Service & equipment
S- Supervisory (S-frames)
S-N Signal-to-noise ratio
S/R Send/receive key
S1DN Stage one distribution network
S96 SLC 96
SA Sattelite trunk INTER/TRA blocal 1-26
SA01 Call store memory audit results - 1AESS software
SAA System applications architecture (for ps/2)
SABME Set asynchronous balanced mode (ABM) extended (LAP-D command)
SAC Service access connector (-> sipb)
SAC Service area computer
SAC Special area code
SAC Switch activation
SAD System access delay
SAG Street address guide
SAI S activity indicator (in EOC)
SAI Serving area interface
SAI Summary of action items
SALI Standalone automatic location identification
SAM Subsequent address msg. (SS7: in ISUP)
SAMA Step by step automatic message accounting
SAMEM Stand-alone billing memory
SANE Signaling area/network code (SS7)
SAP Service access point
SAPI Service access point identifier
SAR Store address register
SARTS Switch access tremote test system
SARTS Switched access remote test system
SAS Switched access service
SASWF Save all seems well failure flip flop
SAT Special access termination
SAT Supervisory audio tone
SAT System access terminal
SAW Surface acoustic wafe (filter)
SB Switched access-standard-service code for LATA access
SBC S bus interface circuit
SBCX SBC extended
SBI Synchronous backplane interconnect
SBLN Standby line
SBMS Southwestern bell mobile service
SBS Skyline business systems
SBUC S bus connector
SC Scanner controller
SC Sectional center
SC System controller
SC/SD Scan and signal distributor
SCA Service order completion-automatic
SCANS Software change administration and notification system
SCAT Stromberg-carlson assistance team
SCC Specialized common carrier
SCC Station cluster controller
SCC Switching control center
SCC Switching control center.
SCCP Signaling ccp (SS7: q.71x)
SCCP Signaling connection control part
SCCS Specialized common carrier service
SCCS Switching control center system
SCF Selective call forwarding
SCF Simple completion for mdf
SCH Test scheduale (command)
SCHED Scheduled
SCI Spare cable pair inquiry
SCL Station clock
SCLK Slave clock
SCM Scramble coder multiplexer
SCM Standard completion by mdf
SCM Subscriber carrier module
SCM Subscriber carrier module (DMS-1 digital pair gain system NTI)
SCO Serving central office
SCOT Stepper central office tester
SCOTS Surveillance & control of transmissions system
SCP Service control point
SCP Service order completion by LAC
SCP Signal control point
SCP Signal conversion point
SCP System control program
SCPC Signal channel per carrier
SCPD Supplementary central pulse distributor
SCR Selective call rejection
SCR Signaling configuration register
SCR Standard completion by rcmac
SCRC Send corrected reference equivalent
SCRN Screening translations
SCS SCM-10S Shelf (SLC-96)
SCS SCM-10S shelf (SLC-96)
SCSDH Scanner and signal distributor handler
SCU Selector control unit
SCX Specialized communications exchange
SD Slip detected
SD Switched access-improved-service code for LATA access
SD&D Specific development & design
SDACS Serving digital accessed and cross-connect system
SDC Sales development center
SDD Site dependent data
SDDF Subscriber digital distributing frame
SDE Submission/delivery entity (x.400)
SDIS Switched digital integrated service
SDL Specification and description language
SDLC Synchronous DLC
SDLC Synchronous data link control
SDLH Synchronous data link handler
SDM Space division multiplex
SDN Software defined network
SDN Software-defined network
SDNBAS Call failed due to the query's being blocked at the switch
SDNBN Call failed due to the query's being blocked in the CCS network
SDNGTCAP Garbled TCAP message received
SDNNCANI CAMA call failed due to CAMA trunk's not providing ANI for
query
SDNNCFA Call failed while the transaction with the NCP was active
SDNNCFI Call failed while the transaction with the NCP was inactive
SDNNOCANI CAMA call failed due to CAMA trunk's not providing ANI
through ONI for query
SDNRER Call failed because to the conversation with the NCP
resulted in a return error
SDNRER Call failed because to the conversation with the NCP
resulting in a return error
SDNRR Call failed because to the conversation with the NCP
resulted in a reject respon
SDNRR Call failed because to the conversation with the NCP
resulting in a reject respo
SDNTIM Call failed due to the query's not being answered in
time by the NCP
SDNTRF Call failed due to the NCP's answering with a terminate request
SDOC Selective dynamic overload controls
SDP Service delivery point
SDP Submission and delivery protocol (x.411)
SDPT Signal distribution points
SDR Store data register
SDR Switch data report
SDS Switched data service
SDS Synchronous data set
SDSC Synchronous data set controller
SDT Software development tools
SE Special access wats-access-std-service code for LATA access
SE Special service equipment number
SEAS Signaling engineering and administration system
SEAS Signalling engineering and administration systems
SEC Second
SEC Signal level behind the echo canceller (C/I channel code)
SEE Systems equipment engineering
SEG Segment
SEL Digital selector (in TMS)
SEL Selecting lines for an exchange class of service study
SER# Seral number
SES Service evaluation system
SES Unk (administrative system)
SET Statistics on equipment and telephone numbers
SET Strategy execution table
SF Service field
SF Signal format
SF Single frequency.
SF Special access- WATS access line improved-service code for LATA
SF Status field (SS7)
SFB Set next febe to zero
SFD Superframe detected (C/I channel code)
SFG Simulated facilities
SFG Simulated facilities group
SFG Simulated facility group
SFG Simulated facility group (SFG) measures.
SFMC Satellite facility management center
SFN Simulated facility number
SFV Signal format verification
SFV Signaling format verification (SARTS command)
SG Control/remote metering signal grade INTER/TRA blocal 1-26
SG Supergroup
SG Switch group (SG) (also known as half-grid)
SGC Switching group control
SGD Failure to receive station group designator (SGD)
SGH Select graphic rendition (teletex)
SGH Supply relays for groups of 5xb hunts
SGL Single
SGML Standard generic markup language
SGMP Simple gateway management protocol
SGN Common language segment number
SHI Select horizontal spacing (teletex)
SI Sequenced information
SI Service indicator
SI Shift in (ascii control)
SI Status indicator
SI Synchronous interface
SIC Silicon integrated circuit
SICOFI Signal processing codec filter
SICOFI2 2 channel sicofi
SID System identification
SIDB Session information data base
SIDES Siemens ISDN software development and evaluation system
SIF Signaling information field (SS7)
SIG Signaling
SIG Signaling equipment (in a trunk)
SIGI Sigi
SIGS Signaling strobe
SILC Selective incoming load control
SILC Selective incoming load controls messages.
SIM System integrity monitor
SIN Status indication normal alignment
SIO Service information octet (SS7)
SIP Serial interface port
SIPB Siemens ISDN pc user board
SIPB 5XXX SIPB modules
SIPB 7XXX SIPB configurations
SIPMOS Siemens PMOS
SIPO 6XXX Siemens ISDN pc software object code
SIPS 6XXX Siemens ISDN pc software source code
SIR Sorting inquiry by range
SIS Special identifying telephone number supplement
SIT Special identifying telephone number
SIT Special information tones
SITAC Siemens isolated thyristor AC
SITE Site assignments
SITEST Siemens ISDN protocol software test tools
SIU Subscriber line interface unit
SJ Limited switched access line-service code for LATA access
SK Skip
SK Skip option
SL Secretarial line INTER/TRA blocal 1-26
SL Subscriber line
SLA Subscriber line adress
SLB Subscriber line busy
SLC Signaling link code (SS7)
SLC Subicer loop carrier
SLC Subscriber line counts for custom calling features
SLC Subscriber loop carrier
SLD Subscriber line data (bus)
SLE Screen list editing
SLE Screening line editor
SLEN SLC line equipment number
SLIC Subscriber line interface circuit
SLIM Subscriber line interface module
SLIM Subscriber loop interface module
SLK Signaling link
SLM Subscriber line module
SLMA SLM analog
SLMD SLM digital
SLPK SLC-96 pack
SLRF Systemiletterntenance results feature (eadas)
SLS Signaling link selection (SS7)
SLSN Unk COSMOS
SLU Special studies
SM Same
SM Sampling INTER/TRA blocal 1-26
SM Service module
SM Speech memory
SM Switch module
SM Switching modual
SM Switching module
SM Synchronous multiplexor
SMAC Service and maintance administration center
SMAS Switched maintance access system
SMAS Switched maintance access system (provides access to the
RMS-M and RTS)
SMASF SMAS frame
SMASPU SMAS power unit
SMD Surface mounted device
SMDF Subscriber main distributing frame
SMDI Subscriber message desk interface
SMDR Station message detail record
SMDR Station message detail recording
SMDR Station message detailed recording
SMDS Switched multi-megabit data service
SMF Sub multi frame
SMG Supermastergroup
SMM SARTS maintence manager (VAX 1/780)
SMP SARTS maintance position (TP 52a)
SMPU Switch Module Processor Unit
SMS Service management system
SMS Station management systems
SMS Switching Module System
SMSA Standard metropolitan statistical area
SMTP Simple mail transfer protocol
SMU Subscriber module urban
SMU System master unit
SN Sequence number
SN Special access termination INTER/TRA blocal 1-26
SNA System network architecture (IBM)
SNA Systems network architecture
SNADS System network architecture distribution service
SNET Southern new england telephone
SNF Serial number format
SNL Signaling link (CCS7)
SNLS Signaling link set (CCS7)
SNRS Signaling network route set (CCS7)
SNS Service network system
SO Service order
SO Shift out
SOAC Service order analysis and control
SOB Service observing assignments
SOB Service observing tag
SOC Service order cancel
SOC Service oversight center
SOCC Standard optical cable code
SOCC Switching operation control center
SODC Service order delayed completion
SOE Service order establishment
SOE Standrard operating environment
SOF Service order fix
SOH Service order history
SOH Service order withheld
SOH Start of header
SOI Service order assignment inquiry
SOI Service order image
SOL Service order listing
SOM Modify a pending service order
SONAR Service order negotiation and retrieval
SONDS Small office network data system
SONET Synchronous optical network
SORD Service order dispach
SOW Service order withdrawal
SP Signal p
SP Signal point (switching office in SS7)
SP Signal processing
SP Signal processor
SP Signaling point
SP Stimulus protocol
SPA Special access
SPACE Service provisioning and creation environment
SPAN Space physics analysis network
SPAN System performance analyzer
SPARED Line involved in ISLU sparing configuration.
SPC Signaling poiny code (SS7)
SPC Southern pacific communications
SPC Stored program control
SPC Stored program controlled
SPCR Serial port control register
SPCS Stored program control system
SPCS Stored programacontrolnsystem
SPCS COER Stored-program control system/central office equipment
report
SPCSS Stored program control switching system
SPD Speed
SPDA Supplier data program
SPFC Special purpose function code
SPH Session protocol handler
SPI Serial peripheral interface
SPINT Signal processor interrupt
SPL Split
SPM Split and monitor
SPM Split and monitor (SARTS command)
SPOC Single point of contact
SPS Split and supervise
SPS Split and supervise (SARTS command)
SPUC/DL Serial peripheral unit controller/data link
SQ Equipment only-customer premises INTER/TRA blocal 1-26
SQA Simulated facility group (SFG) announcement (SAQ)
SQD Signal quality detector
SQL/DS Structured query language/data system
SRA Selective routing arrangement
SRAM Static ram
SRCF Single line remote call forward
SRDC Subrate data cross connect
SRDM Subrate data multiplexer
SRI Subscriber Remote Interface (RLCM)
SRI Subscriber Remote Interface pack
SRL Singing return loss
SRV Service
SRVT SCCP Routing Verification Test
SS Dataphone select-a-station INTER/TRA blocal 1-26
SS Signaling system
SS Special services
SS7 Signaling system #7 (ccitt)
SSA Special service automation
SSAS Station signaling and announcement subsystem
SSB Single-sideband
SSB Switched services bureau
SSBAM Single-sideband amplitude modulation
SSC Specal service center
SSC Special service center
SSC Special services center
SSC Standard speech circuit psb4500/-1
SSCP Subsystem services control point
SSD No second start dial wink
SSD No second start dial wink (MDII)
SSDAC Specal services dispach administration centers
SSF Sub service field
SSI Serial signal interface
SSN Subsystem number
SSN Switched service network
SSO Satellite switching office
SSO Satellite switching office assignments
SSP Send single pulses (C/I channel code for test mode)
SSP Service switching point
SSP Service switching points
SSP Signal switching point
SSP Sponsor selective pricing
SSP Switching service points
SSP System status panel
SSPC Ssp controller
SSPRU Ssp relay unit
SSTR Selective service trunk reservation (SSTR).
SSTR Service selective trunk reservation
SSTTSS Space-space-time-time-space-space network
SSWAP Switching services work allocation precedures (GTE)
ST A signal that indicates the end of mf pulses (stop)
ST Present status of telephone number
ST Self test request nt (IOM2 monitor message)
ST Start
ST Subscriber terminal
STA Station sset
STAB Station abbreviation file
STARS Sampled traffic analysis and repo ts systems
STATMUX Statistical multiplexer
STB Standby
STC Service test center
STC Serving test center
STC Switching technical center
STCR Syncron transfer control register
STD Standard
STD Subscriber trunk dialing
STDM Statistical time division multiplexing
STEP Services testing evolution platfoem
STEP Sides static test of IOS and mf on board (in sitest)
STKE Stack protect error
STLWS Supplementary trunk and line work station
STM Synchronous transfer mode
STN Station definition
STN Summarize telephone numbers
STOR Memory storage
STORY Screening tool for report files (IOS)
STP Self test pass (IOM2 monitor message)
STP Signal transfer point
STP Signal transfer point (SS7)
STP Stop
STRAT Strategy
STS Shared tenant service
STS Space-time-space network
STS Space-time-space switch (TMS-TSI-TMS)
STS Station signaling
STS Station signaling test (SARTS command)
STS Steered tenant service
STS Synchronous transport signal
STS 2060 Sicofi software
STT Telephone number status
STTP Supplementalstrunkntest panel
STTP Supplementary trunk test panel - trunk testing position (1ess)
STU 2000 Stand alone ISDN user board
STU 2040 Stand alone MTS user board
STU 2050 Stand alone PBC user board
STU 2060 Stand alone SICOF user board
STUDIALO PC software for STU 2xxx
STX Start of test
STX Start of text
SU Signaling unit
SU Syndes units (syncronizers-dessyncronizers)
SU5IN Subunit 5 interrupt
SU6IN Subunit 6 interrupt
SU7IN Subunit 7 interrupt
SUB Sub switch
SUB Sub-addressing (i.251)
SUB Substitute character (teletex)
SUBL Sublet service
SUERM Su error rate monitor
SUFX Sufix
SUM1 Summary screen
SUP Supervision
SUS Suspend (SS7: in ISUP)
SUSP Suspend (i.451)
SV Slave
SV Switched voice
SVB Serving bureau
SVC Critical service circuits
SVC Switched virtual circuit
SVC Switched virtual circuits
SVL Service observing loops
SVP Surge voltage protector various
SVS Select vertical spacing (teletex)
SVS Switched voice service
SW Switch name
SW Switched
SWB Southwestern bell
SWC Same wire center
SWC Set work code
SWEQF Switch equipment failure.
SWFC Sliding-window flow control
SWFN Switch function file
SWG Sub working group
SWS Switch work station
SWS Switched signaling
SWS Switching signal test (SARTS command)
SWST Switch signature table
SX Simplex (mode is a PT TR connected togeather)
SX Simplex signaling
SXS Step by (X) step
SYC System control
SYN Synchronous idle
SYNDES Synchonizer/dessynchonizer
SYP Synchronisation pulse
SYS Machine number
SYS System
SYS System manager
SYSGEN System generation
SZD Seized
SxS Step-by-step or strowger switch
T Double wire pair
T Intials of person receiving report.
T Terminaltion
T Tip
T&A Toll and assistance
T&L Termination
T&M Talk-and-monitor
T&R Tip and ring
T&R Two wire phone connection
T- Transportfunction-
T-BERD T-carrier Bit Error Rate Tester
T-GRND Tip-ground
T1/OS T1 carrier outstate
T1FE T1 carrier front end
TA Tandem tie-trunk INTER/TRA blocal 1-26
TA Terminal adaption
TA Terminal adaptor
TA Transfer allowed
TA Transfer assembly
TAB Telephone ability battery
TAC Technical assistance center
TAC Tei assignment control (IOS)
TAC Terminal access circuit
TAC Test and access circuit
TACD Telephone area code directory
TAD Test access digroup
TAG Translation administration group
TAI Tie pair assignment inquiry
TAN Technation access network
TAN Test access network
TAP Telephone assistance plan
TAP Teletex access protocol (x.430: p5)
TAP Test access path
TAP Touchtone assignment priority number
TARE Tariff table (AMA NTI)
TAS Telephone answering service
TASC Technical assistance service center
TASC Telecommunications alarm and surveillance control
TASC Telecommunications alarm surveillance and control system
TASI Time assignment speech interpolartion
TASI Time assignment speech interpolation system
TAT Test access trunk
TAT Test alignment of frame terminal
TAT Transatlantic telephone
TATS Trouble analysis of transmission and signaling
TAU Time assignment unit
TBL Trouble
TC Control/remote metering-telegraph grade INTER/TRA blocal 1-26
TC Timing counter
TC To cable
TC Toll center
TC Transaction capabilities
TC15 Reports overall traffic condition - 1AESS traffic condition
TCA Telephone company administration
TCAP Telecommunications alarm surveillance
TCAP Transaction (ie sdngtcap)
TCAP Transaction capabilities application part
TCAP Transaction capabilities applications port
TCAS T-carrier administration system
TCAS T-carrier administration system)
TCAS T-carrier administrative system
TCC Toll control center
TCC Trunk class code
TCG Test call generation
TCIF Telecommunications industry forum
TCM Time compression multiplexer
TCM Trellis coded modulation
TCP Transport control protocol (DOD)
TCR Transient call record
TCS Terminating code screening
TCSP Tandem cross section program
TCU Timing control unit
TD Test direction
TD Tone decoders
TDAS Traffic data administration system
TDAS Translation data assemblern system
TDC Tape data controller
TDC Telex destination code (ISO 7498)
TDC Terrestrial data circuit
TDD Telecommunications device for deaf
TDF Trunk distributing frame
TDM Time division multiplex
TDMA Tdm access
TDRS Traffic datatrecorderasystem
TE Terminal equipment
TE Transit exchange (contains PSF)
TE Transverse electric
TED Text editor
TEHO Tail end hop off
TEI Terminal endpoint identifier
TELEX Teleprinter exchange
TELNET Virtual terminal protocol
TELSAM Telephone service attitude measurement
TEN Trunk equipment number
TER Terminal
TERM Terminate
TERM Terminating
TEST In test mode.
TET Display or change band filter file
TF Telephoto/facsimile INTER/TRA blocal 1-26
TFC Transfer frame changes
TFLAP T-carrier fault-locating application program
TFS Trunk forecasting system
TFTP Television facility test position
TG Tip-to-ground
TG Translation guide
TGC Manual trunk group controls messages.
TGC Terminal group controller
TGID Trunk group id
TGMEAS Basic trunk group measurements
TGN Trunk group number
TH Trouble history
THGP Thousands groups
THL Trans hybrid loss
TI Test indication
TIA Telephone information access
TIC Telecom ic (IOM-bus)
TICOM Treated interface common circuit.
TIDE Traffic information distributor & editor
TIG Dial transfer input generator
TIM Timing
TIMEREL Time release
TINTF The T interface is down.
TIP The installation practices
TIRKS Trunk integrated record keeping system
TK Local PBX trunk INTER/TRA blocal 1-26
TK Trunk cable and pair number
TKT Trouble ticket file
TL Non-tandem tie trunk INTER/TRA blocal 1-26
TL Test line
TL02 Reason test position test was denied - 1AESS traffic
TLC Tail COSMOS
TLC Translate lanavar/CPS
TLI Telephone line identifier
TLK Talk
TLM Trouble locating manual
TLN Trunk line network
TLP Transmission level point
TLPU Telecommunications line processor unit
TLS Tail switch
TLTP Trunk line and test panel
TLTP Trunk line testrpanelng frame
TLWS Trunk and line work station
TM Testmode
TM Transverse magnetic
TM Trasfer modus
TM Trunk mantance
TM1 Terminal 1 (IOS)
TMA Trunk module analog
TMAS Transport maintance and administration systems
TMC Timeslot management channel
TMD Trunk module digital
TMDF Trunk main distributing frame
TME Trunk module equipment
TMMS Telephone message management system
TMPS Trunk maintenanceaposition
TMR Transient memory record
TMRS Traffic MeasuRment (GTE)
TMRS Traffic measurement and recording system
TMRS Traffic metering remote system
TMS Time mutiplexed switch
TMS Time-multiplexed switch
TMS Time-multiplexed switching
TMT Traffic management.
TMX Trunk module with x-interface
TN Telephone number
TN Tone (C/I channel code: wake up signal)
TN Transaction number
TN01 Trunk diagnostic found trouble - 1AESS trunk network
TN02 Dial tone delay alarm failure - 1AESS trunk network
TN04 Trunk diag request from test panel - 1AESS trunk network
TN05 Trunk test procedural report or denials - 1AESS trunk network
TN06 Trunk state change - 1AESS trunk network
TN07 Response to a trunk type and status request - 1AESS trunk network
TN08 Failed incoming or outgoing call - 1AESS trunk network
TN09 Network relay failures - 1AESS trunk network
TN10 Response to trk-list input usually a request from test position
TN11 Hourly status of trunk undergoing tests - 1AESS trunk network
TN16 Daily summary of precut trunk groups - 1AESS trunk network
TNC Terminal node controller
TNDS Total network data system
TNF Telephone number format
TNN Trunk network number
TNOP Total network operation plan
TNOP Total network operations plan
TNPC Traffic network planning center
TNS Telephone number swap
TO Toll office
TOC Television operating center
TOC Transfer order completion
TOC0 Reports status of less serious overload conditions -
1AESS traffic
TOC0 Serious traffic condition - 1AESS traffic overload
TOE Transfer order establishment
TOF Mass oe transfer order frame listings
TOI Dial transfer order inquiry
TOL Transfer order lists
TOO Transfer order omissions
TOP Task-oriented practices
TOP Technical office protocol
TOPQ Top of queue (Quasi SDL)
TOPS Timesharing operating system
TOPS Traffic operator position system
TOS Trunk orderf-service (list)
TOSS/MP Traffic operator sequence simulator/mult purpose
TOW Transfer order withdrawal
TP Dacs test port or test position
TP Test position
TP Tie pair
TP Toll point
TP 52A SARTS test position 52A
TPC TOPS (DMS) position controllers
TPH Transport protocol handler
TPMP Tnds performance measurement plan
TPMP Total network data system performance measurement plan
TPR Taper code
TPU Tie pair usage report
TQ Television grade customized-service code for LATA access
TQ Trunk query
TQA Trunk group queuing announcements
TR Test register
TR Toll regions
TR Transfer register
TR Trunk reservation controls messages.
TR Turret or automatic call distributor (ACD) trunk INTER/TRA blocal
TR01 Translation information - 1AESS
TRAC Call tracing
TRANS Transmit
TRB Periodic trouble status reporting
TRBL Unspecified trouble.
TRBLORG Origination trouble.
TRC Transfer order recent change report
TRCC T-carrier restoration and control centers
TRCO Trouble reporting control office
TRE Transmission equipment
TREAT Trouble report evaluation analysis tool
TREAT Trouble reporteandsanalysisstool
TREQF Transmission equipment failure.
TRFC15 Fifteen minute traffic report
TRG Trouble reference guide
TRI Tone ringer psb652x
TRI Transmission equipment assignment inquiry
TRK Analog or digital recorded announcement trunks
TRK Trunks
TRKBD Trunk board.
TRKCT Trunk circuit.
TRM Two mile optically remote switching module
TRM Two-mile remote switching module
TRMG Terminal group
TRMSN Transmission
TRMTR Tramsmitter
TRMTR Transmitter
TRNS Translations
TRR Tip-ring reversal
TRR Tip-ring reversal (MDII)
TRR Tip-ring reverse
TRU Transmit/receive unit
TRVR Translation verification
TRW Total reservation order withdrawal
TS Test number
TS Time slot
TSA Time slot assignment
TSC Test system controller
TSC Tristate control
TSC/RTU Test systems controller/remote test unit
TSCPF Time switch and call processor frame
TSCPF Time switch and central processor frame
TSG Timing signal generator
TSI Time slot interchanger
TSI Time slot interchangers
TSI Time-slot interchange
TSIIN Time-slot interchange interrupt
TSIU Time slot interchange Unit
TSL Line equipment summary report
TSMS Traffic seperation measurment system
TSN Test session number
TSN Traffic statistics on telephone numbers
TSO Time sharing option
TSORT Transmission system optimum relief tool
TSP Test supervisor
TSP Traffic service position
TSPS Traffic service position system
TSS Trunk servicing system
TSS Trunk servicing systems
TSST Time-space-space-time network
TST Test
TST Time-space-time network
TST Time-space-time switch (TSI-TMS-TSI)
TST Transmission test
TST Traveling-wave tube
TSTS Time-space-time-space network
TSV Test ststus verification (monitor)
TSW Total service order withdrawal
TT Teletypewriter channel INTER/TRA blocal 1-26
TT Trunk type
TTA Terminating traffic area
TTAA Transmission theory and applacations
TTC Terminating toll center
TTE Trunk trafic engineering
TTFCOM Test transmission facility common
TTFCOM Transmission test facility common
TTL Transistor-transistor logic
TTMI Trunkytransmission maintenance index
TTP Trunk test panel
TTR Operator trunk trouble reports
TTR Operator trunk trouble reports (MDII)
TTS Trunk time switch
TTSI Transmit time slot interchanger
TTTN Tandem tie trunk network
TTU Trasnslation Table Update (GTE)
TTY Get tty name - COSMOS command
TTY Teletypewriter
TTYC Tty controller
TU Transmit unit
TU Trunk unit
TU Turret or automatic call distributor (acd) line INTER/TRA blocal
TUCHBD Trunk unit channel board
TUP Telephone user part (SS7: q.72x)
TUR Traffic usage recording
TUR Trunk utilization report
TUT Trunk under test
TV TV channel one way 15khz audio-service code for LATA access
TW TV channel one way 5khz audio-service code for LATA access
TW Twist
TW02 Dump of octal contents of memory - 1AESS translation
TWX Teletype writer exchange
TWX Teletypewriter exchange
TX Dedicated facility INTER/TRA blocal 1-26
TX Tone transceivers
TXC Text checker
TXM Transfer centrex management
TYP Switch type
TYP Type
Talkoff Take off
Trunk Trunk
TxSD Transmit serial data
U Single wire pair
U(k0) (ger) u0 echo cancellation interface
U(p0) (ger) u0 burst mode interface
U- Unnumbered (u-frames)
U-DSL U-interface digital subscriber line
UA Unnumbered ack (LAP-D response)
UA User agent (x.400)
UAE User application entity or user agent entity (x.400)
UAF Unblocking acknowledgment failure
UAI U activation indication (C/I channel code)
UBA Unblocking acknowledgement
UBL Unblocling (SS7: in ISUP)
UCA Unauthorized centralized automatic message accountin (MDII)
UCD Uniform call distribution
UCL Unconditional
UCONF Universal conference
UCS User control string
UDC Universal digital channel
UDLC Universal dlc
UDP Update dip parameters
UDP User datagram protocol
UDR User data rate
UDT Unidata (SS7: in SCCP)
UDTS Unidata servive (SS7: in SCCP)
UDVM Universal data voice multiplexer
UES Update the entity summary table
UFD Microfarad
UFO Unprinted frame orders
UFT Unitized facility terminals
UI Unnumbered information (LAP-D command)
UIC U-interface unit
UIC User identification code
UID User id
UINTF The ANSI standard U interface is down.
UITP Universal information transport plan
ULCU User level control/command unit
UMC Unassigned multiplexer code
UNDRN Underrange
UNISTAR Universal single call telecommunications answering & repair
UNKN Unknown
UOA U interface only activation (in EOC)
UP User part
UPC Update ccs vs. class of service table
UPDT Update
UPS Uninterruptable power systems
UQL Unequipped label received (outgoing)
US USOC
US Unit separator
USART Universal synchrounous/asynchrounous receiver/transmitter
USB Upper side band
USITA United states independent telephone association
USL List USOC (us) file data
USO Univeral service order
USO Universal service order
USOC Universal service order code
USP Universal sampling plan
USR User-to-user information (SS7: in ISUP)
UTC Unable to comply ack (in eoc)
UTC Unacknowledged (unnumbered) information transfer control (IOS)
UTC Update table for concentrator redesign
UTD Universal tone decoder
UTG Universal tone generator
UTM Universal transaction monitor
UTS Umbilical time slot
UUCICO Unix to unix copy incoming copy outgoing
UUCP Unix to unix copy program
UUCP Unix-system to unix-system copy
UUID Universal user identification
UUS User-to-user signaling (i.257 a)
UUT User to user signaling
UVC Universal voice channel
UWAL Universal wats (wide area telephone service) access line
UXS Unexpected stop
UXS Unexpected stop (MDII)
V Volts
V(R) Receive sequence counter
V(S) Transmit sequence counter
VAC Vacuumschmelze (produces cores and transformers)
VAL Minimum valid hours for entity data
VAN Value added network
VANS Value added network service
VAP Value added process
VAP Videotext access point
VAR Value added retailer
VC Virtual call
VC Virtual circuit
VCA Vacant code
VCB Virtual circuit bearer
VCS Virtual circuit switch (as in Datakit)
VCS Virtual circuit switching
VCS Virtual circuit system
VDC Unk? (On service order)
VDT Video display terminal
VERS Version
VF Commercial television (full time) INTER/TRA blocal 1-26
VF Voice frequency
VFAC Verified and forced account codes
VFD Verify display
VFG Virtual facility group
VFN Vendor feature node
VFS Verify status
VFY Verfy
VFY Verify
VG Voice grade
VGB Voice grade budget
VGF Voice grade facility
VGT Boltage test
VGT Voltage test (SARTS command)
VH Commercial television (part time) INTER/TRA blocal 1-26
VHDL Very high scale ic description language (DOD)
VHF Very high frequency
VINES Virtual network software
VIU Voiceband interface unit
VL (Ger) connecting cable
VLD Validity
VLSI Very large-scale integrated circuitry
VLT Voltage
VM Control/remote metering-voice grade INTER/TRA blocal 1-26
VM/SP Virtual machine/system product
VMC Vender marketing center
VMCF Virtual machine communications facility
VMR Volt-meter reverse
VMRS Voice message relay system
VMS Virtual memory operating system
VMS Voice mail system
VMS Voice management system
VMS Voltage Monitor error Summary
VNF Virtual network feature
VNL Via net loss plan
VNLF Via net loss factor
VO International overseas television INTER/TRA blocal 1-26
VODAS Voice over data access station
VPA Voice path assurance timeout (outgoing)
VPN Virtual private network
VR Non-commercial television
VRMS Voltage remote mean square
VRS Voice response system
VSAM Virtual storage access method
VSAT Very small aperature terminal
VSAT Very small aperture terminal (for satellite communication)
VSB Vestigial sideband modulation
VSC Vendor service center
VSE Virtual storage extended
VSP (ger) full frame storage
VSR Voice storage and retrieval
VSRTP Voice service remote test port
VSS Voice storage system
VSSP Voice switch signaling point
VSt (ger) exchange unit
VT Vertical tabulator
VT Virtual terminal
VTAM Virtual telecom access method
VTAM Virtual telecommunications access method
VTI Virtual terminal interface
VTOC Volume table of contents
VTS Video teleconferencing system
VUA Virtual user agent
W Date and time this ticket is closed.
W With
WADS Wide area data service
WAN Wide area network
WATS Wide area telecommunications service
WATS Wide area telephone service
WB Wideband digital 19.2 kb/s-service code for LATA access
WC Special 800 surface trunk INTER/TRA blocal 1-26
WC Wire center
WCC Change wire center - COSMOS command
WCI Write controller interface (IOM2 monitor command)
WCPC Wire center planning center
WCT Worksheet for cable throw orders
WD Special wats trunk (out) INTER/TRA blocal 1-26
WDCS Wideband digital cross-connect system
WDFHP Recursive high pass filter + decimation filter
WDFLP Recursive low pass filter + decimation filter
WDM Wavelength division multiplex
WDM Wavelength division multiplexing
WDT Watch dog timer
WE Wideband digital 50 kb/s-service code for LATA access
WEBS Wells electronic banking system
WF Wideband digital 230.4 kb/s-service code for LATA access
WFA Work and force administration
WFA-CMSA Work and force administration - common module for
systems administration
WFA/DO Work and force administration/dispatch out
WFL Working frame location
WG Switch group
WH Wideband digital 56 kb/s-service code for LATA access
WI 800 surface trunk INTER/TRA blocal 1-26
WI Wink start
WIP Workcenter information package
WJ Wideband analog 60-108 khz-service code for LATA access
WL Wideband analog 312-552 khz-service code for LATA access
WM Work manager
WN Wideband analog 10hz-20 khz-service code for LATA access
WO Wats line (out) INTER/TRA blocal 1-26
WOI Work order inquiry
WOL Work order listing
WORD Work order and record detail
WORD Work order record and details
WP Wideband analog 29-44 khz-service code for LATA access
WPN Work package number
WPT Work package table
WPT Work package type
WR Wideband analog 564-3064 khz-service code for LATA access
WS Wats trunk (out) INTER/TRA blocal 1-26
WSL Work status list
WSO Wats service office
WUL Work unit report for subscriber line
WX 800 service line INTER/TRA blocal 1-26
WY Wats trunk (2-way) INTER/TRA blocal 1-26
WZ Wats line (2-way) INTER/TRA blocal 1-26
X Check t for trouble
X-bar Crossbar
XA Dedicated digital 2.4 kb/s-service code for LATA access
XAD Transmit adress
XB Dedicated digital 4.8 kb/s-service code for LATA access
XB X-bar
XBT X-bar tandem
XFE X-front end
XFIFO Transmit fifo
XG Dedicated digital 9.6 kb/s-service code for LATA access
XH Dedecated digital 56. kb/s-service code for LATA access
XID Exchange identification (LAP-D command/response)
XMS Extended multiprocessor operating system
XN X
XN X number
XOFF Transmission off (dc1)
XON Transmission on (dc3)
XPL Cross reference protocol listing (PCT)
XST Expected stop time-out
XTC Extended test controller
XTC Extended test controllers
XTC Extened test controller
Y Initials of person to whom ticket is dispatched
Z Redispatch information.
Z Transmit level point z
ZA Alarm circuts INTER/TRA blocal 1-26
ZC Call and talk circuts INTER/TRA blocal 1-26
ZCS Zero code suppression
ZCS Zero code suppression encoding (ds-1)
ZE Emergency patching circuts INTER/TRA blocal 1-26
ZF Order circuts- facility INTER/TRA blocal 1-26
ZM Measurement and recording circuts INTER/TRA blocal 1-26
ZN Zone location
ZP Test circut- plant service center INTER/TRA blocal 1-26
ZQ Quality and management circuts INTER/TRA blocal 1-26
ZS Switching- control and transfer circuts INTER/TRA blocal 1-26
ZT Test circuts- central office INTER/TRA blocal 1-26
ZV Order circuts- service INTER/TRA blocal 1-26
kHz Kilohertz-one thoughand hertz
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