\\ More than 3500 Telecom abbreviations maintained by Ioan (Nini) Indreias //
1 A B C D E F G H I J K L M N O P Q R S T U V W X Y
All words

S&EService & Equipment
S<Speech and Language Technology
S-CDMASynchronous CDMA
S-PCNSatellite Personal Communication Networks
S/NSignal to Noise Ratio
S7APSS7 Application Part
SSignal splitter
SA/SPSmart Access Shopping Protocol
SAService Author
SASource Address
SASpecial Access
SASubarea
SAAService Adaptive Access
SAASystems Application Architecture (IBM)
SAALSignaling ATM Adaptation Layer (ATM)
SABMSet Asynchronous Balanced Mode (HDLC)
SABMESet Asynchronous Balanced Mode Extended (HDLC)
SACSatellite Access Center
SACService Access Codes
SACSingle Attachment Concentrator (FDDI)
SACSpecial Access
SACCHSlow ACCH (GSM)
SADService Address Directory
SAGStreet Address Guide
SAIServing Area Interface
SAMService Access Multiplexer
SAMSubscription and Account Management (Sicap)
SAMSystem Administration Manager
SAMSystem Adminitration Manager
SAMISAM Interface
SANStorage Area Network
SANCSignaling Area Network Code
SAPService Access Point
SAPService Advertising Protocol (NetWare)
SAPSpecial Access POTS service
SAPIService Access Point Identifier (LAPD)
SAR-PDUSegmentation and Reassembly PDU
SARSegmentation and Reassembly
SARSegmentation and Reassembly (ATM)
SARSpecific Absorption Rate
SARMSet Asynchronous Response Mode (HDLC)
SASSerial Attached SCSI
SASSingle Attachment Station
SASSingle Attachment Station (FDDI)
SASESpecific Applications Service Element (subset of CASE, Application Layer)
SATASerial ATA
SATDStreet Address Telephone Directory
SBSignal Battery
SBSummary Billing
SBSynchronisation Burst
SBISubscriber Browser Interface
SBISynchronous Backplane Interface
SBSSatellite Business Systems
SBXSmall Business Exchange
SC-FDESingle Carrier Frequency Domain Equalization
SCService Creator
SCASelective Call Acceptance
SCASubsidiary Carrier Authorization
SCASystem Communication Architecture
SCAISwitch-to-Computer Application Interface
SCAISwitch-to-Computer Application(s) Interface
SCCSattelite Communications Control
SCCSpecial Common Carrier
SCCSwitching Control Center
SCCPSignaling Connection Control Part
SCCPSignaling Connection Control Point (SS7)
SCCSSwitching Control Center System
SCEService Creation Environment
SCEFService Creation Environment Function
SCFService Control Function
SCHSynchronisation Channel
SCOSanta Cruz Operation
SCPService Control Point
SCPService Control Point (SS7)
SCPSession Control Protocol
SCPCSingle Channel Per Carrier
SCPSService Control Point Simulator
SCRSustained Cell Rate (ATM)
SCSASignal Computing System Architecture
SCSISmall Computer Systems Interface
SCTESerial Clock Transmit External (EIA-232-E)
SCTPSimple Control Transmission Protocol
SDSpeaker Dependent
SDStarting Delimiter (LAN)
SDCCHStandalone Dedicated Control Channel
SDCUSynchronous Data Channel Unit
SDFService Data Function
SDHSynchronous Digital Hierarchy
SDHSynchronous Digital Hierarchy (ITU-T,SONET)
SDKSoftware Development Kit
SDLSpecificatil and Description Language
SDLCSynchronous Data Link Control
SDLCSynchronous Data Link Control (IBM)
SDLLCSDLC Logical Link Control (Cisco)
SDMSpace-Division Multiplexing
SDMSubstrate Data Mux
SDMASpatial Division Multiple Access
SDNSoftware Defined Network
SDNSoftware Defined Network Control Center
SDPService Data Point
SDPService Definition and Provisioning
SDPSession Description Protocol
SDRSpeaker Dependent Recognition
SDRAMSynchronous DRAM
SDRAMSynchronous Dynamic Random Access Memory
SDSScientific Data Systems
SDSShort Data Service
SDSSwitched Digital Services
SDSAFSwitched Digital Service Applications Forum
SDSLSymmetric Digital Subscriber Line
SDSUSMDS Data Service Unit
SDTSDL Design Tool
SDTVStandard Definition (digital) Television
SDUService Data Unit
SEStatus Enquiry (FR)
SEALSimple and Efficient Adaptation Layer
SECAMSequential Coleur Avec Memoire
SECAMSequential Coleur Avec Memoire (Sequential Color with Memory)
SecureInternet Roaming
SEEService Execution Environment
SEFLSingle Ended Fault Locating
SELSelector Field
SEPService Execution Platform
SEPSignaling End Point
SESSevere Errored Seconds
SETSecure Electronic Transaction
SFService Function
SFSignal Frequency
SFSingle Frequency
SFStatus Field
SFSuper Frame
SFSuperframe Format
SFCDRStandalone Fast CDR Handler (Sicap)
SFHSlow Frequency Hopping
SFSStart of Frame Sequence (LAN)
SGSignal Ground
SGSignaling Gateway
SGStudy Group (ITU-T)
SGCPSimple Gateway Control Protocol
SGMLStandard Generalized Markup Language
SGMLStandard Generic Markup Language
SGMPSimple Gateway Management Protocol (IETF)
SGRAMSynchronous Graphics RAM
SGSNService GPRS Support Node
SGSNServing GPRS Support Node
SHSAR Sublayer Header
SHARPSelf-Healing Alternate Route Protection
SHFSuper High Frequency
SHNSSelf-Healing Network Service
SHRSelf-Healing Ring
SIService Indicator
SIService Information octet
SISingle Instance
SISpeaker Independent
SIBService Independent Buiding Block
SIBStatus Indication B (busy)
SICDRSpeaker Independent Connected Digit Recognition
SIDSilence Descriptor (GSM)
SIDSystem ID number
SIDSystem Identification
SIDESSiemens ISDN Software Development and Evaluation System
SIEStatus Indication E (emergency alignment)
SIFSignaling Information Field
SIFSignalling Information Field
SIGSIGnaling Transport
SIGSMDS Interest Group
SIGSpecial Interest Group
SIGSSignaling Strobe
SIGTRANSIGnaling TRANsport
SILSStandard for Interoperable LAN Security (IEEE 802.10)
SIMSet Initialization Mode (HDLC)
SIMSubscriber Identity Module
SIMSubscriber Identity Module (GSM)
SIMSubscriber Information Module
SIMDSingle Instruction stream, Multiple Data stream
SIMMSingle Inline Memory Module
SINStatus Indication N (normal alignment)
SINADSignal-to-Noise Plus Distortion (ratio)
SIOScientific and Industrial Organizations (ITU-T)
SIOService Information Octet
SIOSignaling Information Octet
SIOStatus Indication O (out of alignment)
SIPSerial Interface Processor (Cisco)
SIPSession Initiation Protocol
SIPSMDS Inteface Protocol
SIPSMDS Interface Protocol (Cisco)
SIPBSiemens ISDN PC User Board
SIRSpeaker Independent Recognition
SIRSustained Information Rate (SMDS)
SITSpecial Identification Tone(s)
SITSystem Integration Testing
SITASociety of International Aeronautical Telecommunications
SIUSignaling Interface Unit
SIVSpeaker Identity Verification
SJFShortest Job First
SKService Key
SLService Layer
SLAService Level Agreement
SLCSignaling Link Code
SLCSubscriber Line Charge
SLCSubscriber Loop Carrier
SLDRAMSyncLink DRAM
SLEEService Logic Execution Environment
SLEEService Logic Execution Environment (HP)
SLICSubscriber Line Interface Card
SLIPSerial Line Interface Protocol (IETF)
SLIPSerial Line Internet Protocol
SLMSingle Longitudinal Mode
SLPService Logic Program
SLPService Logic Program (HP)
SLPSingle-Link Procedures (X.25)
SLPIService Logic Program Instance
SLRSource Local Reference
SLSSignaling Link Selection
SLSSingle Link Set
SLSSpoken Language Systems
SLUSecondary Logical Unit
SMService Manager
SMSingle Mode
SMSwitching Module (AT&T 5ESS)
SMAFService Management Access Function
SMAFService Management Agents Function
SMAPSystem Management Application Part
SMASESystems Management Application Service Element
SMATVSatellite Master Antenna TV
SMBServer Message Block
SMCSwitch Maintenance Center
SMD-PPShort Message Delivery - Point to Point
SMDFSubscriber Maintenance Distributing Frame
SMDISimple Message Desk Interface
SMDRStation Message Detail Recording
SMDSSwitched Multimegabit Data Service
SMDSSwitched Multimegabit Data Service (Bellcore)
SMEShort Message Entity
SMESubject Matter Expert
SMFSingle-Mode Fiber
SMGSpecial Mobile Group (ETSI)
SMIStructure of Management Information
SMIStructured Management of Information (OAM)
SMILSynchronized Multimedia Integration Language
SMLService Management Layer
SMPService Management Point/Platform
SMPSimple Management Protocol
SMPSwitching Module Processor
SMPSymmetric MultiProcessing
SMPPShort Message Peer to Peer
SMPPShort Message Peer to Peer Protocol (GSM - UMTS)
SMRSpecial Mobile Radio
SMRSpecialised Mobile Radio
SMS-CShort Message Service Centre
SMS-MOSMS Mobile Originated
SMS-MTSMS Mobile Terminated
SMS-PPSMS Point to Point
SMSService Management System
SMSShort Message Service (GSM - UMTS)
SMSSpeech Mail System
SMSAStandard Metropolitan Statistical Area
SMSCShort Message Service Centre (GSM - UMTS)
SMSCBShort Message Service Cell Broadcast
SMSCBSMS Cell Broadcast
SMTPSimple Mail Transfer Protocol (IETF)
SMTSSenior Member of Technical Staff
SN&MService Negotiation and Management
SNSequence Number (ATM, DQDB, SMDS)
SNSerial Number
SNService Node
SNSubscriber Number
SNSwitching Network
SNASystems Network Architecture
SNASystems Network Architecture (IBM)
SNADSSNA Distributed Services
SNAPSubnetwork Access Protocol (IEEE 802)
SNDSend
SNDCPSub-network Dependent convergence Protocol
SNDRSender
SNETSouthern New England Telephone Company
SNISubscriber Network Interface (SMDS)
SNMPSimple Network Management Protocol
SNMPSimple Network Management Protocol (IETF)
SNMPSimple Network Management/Monitoring Protocol
SNMPIFSNMP Interface Module (SZ)
SNMPv2SNMP version 2 (IETF)
SNPSequence Number Protection
SNRSignal to Noise Ratio
SNRSingle Number Reach
SNRMSet Normal Response Mode (HDLC)
SNRMESet Normal Response Mode Extended (HDLC)
SOService Order
SOServing Office
SOSwitch Over (HA)
SOAService Order Administration
SOACService Order Analysis & Control
SOAPSimple Object Access Protocol (Protocol)
SOFEService Order Front End system
SOHSection Overhead (SONET)
SOHStart Of Header
SOHStart of Header (BISYNC)
SOHOSmall Office - Home Office
SOHOSmall Office/Home Office
SOJSmall Outline J-Lead
SONETSynchronous Operating NETwork
SONETSynchronous Operating/Optical NETwork
SONETSynchronous Optical Network (BISYNC)
SORDService Order Retrieval and Distribution system
SPSAR Sublayer Payload
SPService Provider
SPSignaling Point (ANSI)
SPSwitch Processor (Cisco)
SPSwitching Point
SPASecurity Posture Assessment (Cisco)
SPASpecific Poll Address (SS7)
SPAGStandards Promotion and Application Group (BISYNC)
SPANSpace Physics Analysis Network
SPANSwitched Port Analyzer (Cisco)
SPARCScalable Performance Architecture
SPCSignaling Point Code (SS7)
SPCStatistical Process Control
SPCStored Program Control
SPCSwitched Permanent Circuits
SPCLSpectrum Cellular
SPCRSerial Port Control Register
SPCSStored Program Control System
SPCSStored Program Controlled Switch
SPDSerial Presence Detect
SPDUSession Protocol Data Unit
SPESynchronous Payload Envelope (SONET)
SPFShortest Path First
SPISoftware Plug In
SPIDService Profile Identifier (ISDN)
SPINService Provider Identification Number
SPLNPService Provider Local Number Portability
SPMSpace Switch Module
SPMPService Provisioning Measurement Plan
SPNService Provider Number
SPOCSingle Point of Contact
SPOFSingle Point of Failure
SPPSequenced Packet Protocol (NetWare)
SPRMSupplementary Performance Report Message
SPTSpeech Processing and Telephony (telephone front-end)
SPTNSingle Protocol Transport Network
SPXSequenced Packet Exchange (NetWare)
SQSignal Quality Detector (EIA-232-E)
SQAMStaggered Quadrature Amplitude Modulation
SQDSignal Quality Detector
SQLStructured Query Language
SQLStructured Query Language (Database)
SQPSKStaggered Quadrature Phase Shift Keying
SQRSignal to Quantizing noise Ratio
SR-TBSource Routing-Transparent Bridging (IEEE)
SRSelective Routing
SRService Request
SRSource Routing (IBM)
SRAMStatic RAM
SRDSecondary Received Data (EIA-232-E)
SRDMSub Rate Data Multiplexer
SRESicap Rating Engine
SREJSelective Reject (HDLC)
SRESSigned Response (GSM)
SRFSpecialized Resource Function
SRFSpecifically Routed Frames (Token Ring SR)
SRISIP Relay Interface (SMDS)
SRLSinging Return Loss
SRMSignaling Route Management
SRPSpatial Reuse Protocol
SRPSpecialized Resource Platform
SRPSpecialized Resource Point
SRTSource Routing Transparent
SRTSSynchronous Residual Time Stamp
SS6Signaling System 6
SS7Signaling System #7
SS7Signaling System 7
SSSpread Spectrum
SSSupervisory Center
SSSuplementary Services
SSSupplementary Service Support
SSSwitching System (SMDS)
SSAStation Select Address (BISYNC)
SSAPSession Service Access Point (LLC)
SSBSignal Side Band
SSBSCSingle Sideband Suppressed Carrier
SSCPService Switching and Control Point
SSCPSystem Service Control Point
SSCPSystem Service(s) Control Point
SSCSService Specific Convergence Sublayer
SSESilicon Switching Engine (Cisco)
SSFService Switching Function
SSFSubservice Field (SS7)
SSHSecure SHell
SSISingle System Imaging
SSLSecure Socket Layer
SSMSingle Segment Message (DQDB, SMDS)
SSMLSpeech Synthesis Markup Language
SSNSubSystem Number
SSNSwitched Services Network
SSPSCCP Subsystem Prohibited
SSPService Switching Point (SS7)
SSPSiemens Switching Processor
SSPSilicon Switch Processor (Cisco)
SSPEService Switching Point Emulator
SSSSMDS Switching System
SSSSubscriber Switching Subsystem
SSTSynchronous Service Transport
SSTDMASpacecraft Switched Time Division Multiple Access
STSAR Sublayer Trailer
STSegment Type (DQDB, SMDS)
STSignaling Terminal
STSTop (end of pulsing signal)
STSubscribers Terminal
STASpanning Tree Algorithm (LAN)
STACKStart Acknowledgement
STCRSyncron Transfer Control Register
STDSecondary Transmitted Data (EIA-232)
STDMStatistical Time Division Multiplexer
STESection Terminating Equipment (SONET)
STESignaling Terminal Equipment(V.75)
STESpanning-Tree Explorer (LAN)
STKSIM Tool Kit (GSM - UMTS)
STKSIM ToolKit
STMSONET Terminal Multiplexer
STMSynchronous Transfer Mode
STMSynchronous Transport Module (SDH)
STPService Traffic Position
STPShielded Twisted Pair (Physical Layer)
STPSignaling Transfer Point (SS7)
STPSpanning Tree Protocol (Data Link, Bridges)
STPStrategic Technical Project
STS-1Synchronous Transport Signal (level)-1
STSSynchronous Transport Signal (SONET)
STUNSerial Tunnel (Cisco)
STXStart of TeXt (BISYNC)
SUSignal(ing) Unit
SUASCCP User Adaptation
SUERMSignal Unit Error Rate monitor (SS7)
SUSSuspend (SS7)
SVCSignaling Virtual Channel (ATM)
SVCSwitched Virtual Call
SVCSwitched Virtual Circuit
SVCSwitched Virtual Circuit (Packet Switching)
SVCSwitched Virtual Connection
SVDSimultaneous Voice Data
SVGASuper Video Graphics Array
SVISubvector Identifier
SVSSelect Vertical Spacing (Teletex)
SVVSubvector Value
SWSeeker Wireless
SWAPShared Wireless Access Protocol
SWCServing Wire Center
SWCSwitching Wire Center
SWF-DS1Switched Fractional DS1
SWFSwitched Fractional
SWFCSliding-Window Flow Control
SXSStep-by-Step (Switching)
SXSStep-by-step Switch
SYNSynchronization
SYNCHSYNCHronous
SYNTRANSYNchronous TRANsmission
System
SZSeeker Zone
SMBZ - SaMBoZaur - test for propagation of define: