| \\ 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&E | Service & Equipment |
|---|---|
| S< | Speech and Language Technology |
| S-CDMA | Synchronous CDMA |
| S-PCN | Satellite Personal Communication Networks |
| S/N | Signal to Noise Ratio |
| S7AP | SS7 Application Part |
| S | Signal splitter |
| SA/SP | Smart Access Shopping Protocol |
| SA | Service Author |
| SA | Source Address |
| SA | Special Access |
| SA | Subarea |
| SAA | Service Adaptive Access |
| SAA | Systems Application Architecture (IBM) |
| SAAL | Signaling ATM Adaptation Layer (ATM) |
| SABM | Set Asynchronous Balanced Mode (HDLC) |
| SABME | Set Asynchronous Balanced Mode Extended (HDLC) |
| SAC | Satellite Access Center |
| SAC | Service Access Codes |
| SAC | Single Attachment Concentrator (FDDI) |
| SAC | Special Access |
| SACCH | Slow ACCH (GSM) |
| SAD | Service Address Directory |
| SAG | Street Address Guide |
| SAI | Serving Area Interface |
| SAM | Service Access Multiplexer |
| SAM | Subscription and Account Management (Sicap) |
| SAM | System Administration Manager |
| SAM | System Adminitration Manager |
| SAMI | SAM Interface |
| SAN | Storage Area Network |
| SANC | Signaling Area Network Code |
| SAP | Service Access Point |
| SAP | Service Advertising Protocol (NetWare) |
| SAP | Special Access POTS service |
| SAPI | Service Access Point Identifier (LAPD) |
| SAR-PDU | Segmentation and Reassembly PDU |
| SAR | Segmentation and Reassembly |
| SAR | Segmentation and Reassembly (ATM) |
| SAR | Specific Absorption Rate |
| SARM | Set Asynchronous Response Mode (HDLC) |
| SAS | Serial Attached SCSI |
| SAS | Single Attachment Station |
| SAS | Single Attachment Station (FDDI) |
| SASE | Specific Applications Service Element (subset of CASE, Application Layer) |
| SATA | Serial ATA |
| SATD | Street Address Telephone Directory |
| SB | Signal Battery |
| SB | Summary Billing |
| SB | Synchronisation Burst |
| SBI | Subscriber Browser Interface |
| SBI | Synchronous Backplane Interface |
| SBS | Satellite Business Systems |
| SBX | Small Business Exchange |
| SC-FDE | Single Carrier Frequency Domain Equalization |
| SC | Service Creator |
| SCA | Selective Call Acceptance |
| SCA | Subsidiary Carrier Authorization |
| SCA | System Communication Architecture |
| SCAI | Switch-to-Computer Application Interface |
| SCAI | Switch-to-Computer Application(s) Interface |
| SCC | Sattelite Communications Control |
| SCC | Special Common Carrier |
| SCC | Switching Control Center |
| SCCP | Signaling Connection Control Part |
| SCCP | Signaling Connection Control Point (SS7) |
| SCCS | Switching Control Center System |
| SCE | Service Creation Environment |
| SCEF | Service Creation Environment Function |
| SCF | Service Control Function |
| SCH | Synchronisation Channel |
| SCO | Santa Cruz Operation |
| SCP | Service Control Point |
| SCP | Service Control Point (SS7) |
| SCP | Session Control Protocol |
| SCPC | Single Channel Per Carrier |
| SCPS | Service Control Point Simulator |
| SCR | Sustained Cell Rate (ATM) |
| SCSA | Signal Computing System Architecture |
| SCSI | Small Computer Systems Interface |
| SCTE | Serial Clock Transmit External (EIA-232-E) |
| SCTP | Simple Control Transmission Protocol |
| SD | Speaker Dependent |
| SD | Starting Delimiter (LAN) |
| SDCCH | Standalone Dedicated Control Channel |
| SDCU | Synchronous Data Channel Unit |
| SDF | Service Data Function |
| SDH | Synchronous Digital Hierarchy |
| SDH | Synchronous Digital Hierarchy (ITU-T,SONET) |
| SDK | Software Development Kit |
| SDL | Specificatil and Description Language |
| SDLC | Synchronous Data Link Control |
| SDLC | Synchronous Data Link Control (IBM) |
| SDLLC | SDLC Logical Link Control (Cisco) |
| SDM | Space-Division Multiplexing |
| SDM | Substrate Data Mux |
| SDMA | Spatial Division Multiple Access |
| SDN | Software Defined Network |
| SDN | Software Defined Network Control Center |
| SDP | Service Data Point |
| SDP | Service Definition and Provisioning |
| SDP | Session Description Protocol |
| SDR | Speaker Dependent Recognition |
| SDRAM | Synchronous DRAM |
| SDRAM | Synchronous Dynamic Random Access Memory |
| SDS | Scientific Data Systems |
| SDS | Short Data Service |
| SDS | Switched Digital Services |
| SDSAF | Switched Digital Service Applications Forum |
| SDSL | Symmetric Digital Subscriber Line |
| SDSU | SMDS Data Service Unit |
| SDT | SDL Design Tool |
| SDTV | Standard Definition (digital) Television |
| SDU | Service Data Unit |
| SE | Status Enquiry (FR) |
| SEAL | Simple and Efficient Adaptation Layer |
| SECAM | Sequential Coleur Avec Memoire |
| SECAM | Sequential Coleur Avec Memoire (Sequential Color with Memory) |
| Secure | Internet Roaming |
| SEE | Service Execution Environment |
| SEFL | Single Ended Fault Locating |
| SEL | Selector Field |
| SEP | Service Execution Platform |
| SEP | Signaling End Point |
| SES | Severe Errored Seconds |
| SET | Secure Electronic Transaction |
| SF | Service Function |
| SF | Signal Frequency |
| SF | Single Frequency |
| SF | Status Field |
| SF | Super Frame |
| SF | Superframe Format |
| SFCDR | Standalone Fast CDR Handler (Sicap) |
| SFH | Slow Frequency Hopping |
| SFS | Start of Frame Sequence (LAN) |
| SG | Signal Ground |
| SG | Signaling Gateway |
| SG | Study Group (ITU-T) |
| SGCP | Simple Gateway Control Protocol |
| SGML | Standard Generalized Markup Language |
| SGML | Standard Generic Markup Language |
| SGMP | Simple Gateway Management Protocol (IETF) |
| SGRAM | Synchronous Graphics RAM |
| SGSN | Service GPRS Support Node |
| SGSN | Serving GPRS Support Node |
| SH | SAR Sublayer Header |
| SHARP | Self-Healing Alternate Route Protection |
| SHF | Super High Frequency |
| SHNS | Self-Healing Network Service |
| SHR | Self-Healing Ring |
| SI | Service Indicator |
| SI | Service Information octet |
| SI | Single Instance |
| SI | Speaker Independent |
| SIB | Service Independent Buiding Block |
| SIB | Status Indication B (busy) |
| SICDR | Speaker Independent Connected Digit Recognition |
| SID | Silence Descriptor (GSM) |
| SID | System ID number |
| SID | System Identification |
| SIDES | Siemens ISDN Software Development and Evaluation System |
| SIE | Status Indication E (emergency alignment) |
| SIF | Signaling Information Field |
| SIF | Signalling Information Field |
| SIG | SIGnaling Transport |
| SIG | SMDS Interest Group |
| SIG | Special Interest Group |
| SIGS | Signaling Strobe |
| SIGTRAN | SIGnaling TRANsport |
| SILS | Standard for Interoperable LAN Security (IEEE 802.10) |
| SIM | Set Initialization Mode (HDLC) |
| SIM | Subscriber Identity Module |
| SIM | Subscriber Identity Module (GSM) |
| SIM | Subscriber Information Module |
| SIMD | Single Instruction stream, Multiple Data stream |
| SIMM | Single Inline Memory Module |
| SIN | Status Indication N (normal alignment) |
| SINAD | Signal-to-Noise Plus Distortion (ratio) |
| SIO | Scientific and Industrial Organizations (ITU-T) |
| SIO | Service Information Octet |
| SIO | Signaling Information Octet |
| SIO | Status Indication O (out of alignment) |
| SIP | Serial Interface Processor (Cisco) |
| SIP | Session Initiation Protocol |
| SIP | SMDS Inteface Protocol |
| SIP | SMDS Interface Protocol (Cisco) |
| SIPB | Siemens ISDN PC User Board |
| SIR | Speaker Independent Recognition |
| SIR | Sustained Information Rate (SMDS) |
| SIT | Special Identification Tone(s) |
| SIT | System Integration Testing |
| SITA | Society of International Aeronautical Telecommunications |
| SIU | Signaling Interface Unit |
| SIV | Speaker Identity Verification |
| SJF | Shortest Job First |
| SK | Service Key |
| SL | Service Layer |
| SLA | Service Level Agreement |
| SLC | Signaling Link Code |
| SLC | Subscriber Line Charge |
| SLC | Subscriber Loop Carrier |
| SLDRAM | SyncLink DRAM |
| SLEE | Service Logic Execution Environment |
| SLEE | Service Logic Execution Environment (HP) |
| SLIC | Subscriber Line Interface Card |
| SLIP | Serial Line Interface Protocol (IETF) |
| SLIP | Serial Line Internet Protocol |
| SLM | Single Longitudinal Mode |
| SLP | Service Logic Program |
| SLP | Service Logic Program (HP) |
| SLP | Single-Link Procedures (X.25) |
| SLPI | Service Logic Program Instance |
| SLR | Source Local Reference |
| SLS | Signaling Link Selection |
| SLS | Single Link Set |
| SLS | Spoken Language Systems |
| SLU | Secondary Logical Unit |
| SM | Service Manager |
| SM | Single Mode |
| SM | Switching Module (AT&T 5ESS) |
| SMAF | Service Management Access Function |
| SMAF | Service Management Agents Function |
| SMAP | System Management Application Part |
| SMASE | Systems Management Application Service Element |
| SMATV | Satellite Master Antenna TV |
| SMB | Server Message Block |
| SMC | Switch Maintenance Center |
| SMD-PP | Short Message Delivery - Point to Point |
| SMDF | Subscriber Maintenance Distributing Frame |
| SMDI | Simple Message Desk Interface |
| SMDR | Station Message Detail Recording |
| SMDS | Switched Multimegabit Data Service |
| SMDS | Switched Multimegabit Data Service (Bellcore) |
| SME | Short Message Entity |
| SME | Subject Matter Expert |
| SMF | Single-Mode Fiber |
| SMG | Special Mobile Group (ETSI) |
| SMI | Structure of Management Information |
| SMI | Structured Management of Information (OAM) |
| SMIL | Synchronized Multimedia Integration Language |
| SML | Service Management Layer |
| SMP | Service Management Point/Platform |
| SMP | Simple Management Protocol |
| SMP | Switching Module Processor |
| SMP | Symmetric MultiProcessing |
| SMPP | Short Message Peer to Peer |
| SMPP | Short Message Peer to Peer Protocol (GSM - UMTS) |
| SMR | Special Mobile Radio |
| SMR | Specialised Mobile Radio |
| SMS-C | Short Message Service Centre |
| SMS-MO | SMS Mobile Originated |
| SMS-MT | SMS Mobile Terminated |
| SMS-PP | SMS Point to Point |
| SMS | Service Management System |
| SMS | Short Message Service (GSM - UMTS) |
| SMS | Speech Mail System |
| SMSA | Standard Metropolitan Statistical Area |
| SMSC | Short Message Service Centre (GSM - UMTS) |
| SMSCB | Short Message Service Cell Broadcast |
| SMSCB | SMS Cell Broadcast |
| SMTP | Simple Mail Transfer Protocol (IETF) |
| SMTS | Senior Member of Technical Staff |
| SN&M | Service Negotiation and Management |
| SN | Sequence Number (ATM, DQDB, SMDS) |
| SN | Serial Number |
| SN | Service Node |
| SN | Subscriber Number |
| SN | Switching Network |
| SNA | Systems Network Architecture |
| SNA | Systems Network Architecture (IBM) |
| SNADS | SNA Distributed Services |
| SNAP | Subnetwork Access Protocol (IEEE 802) |
| SND | Send |
| SNDCP | Sub-network Dependent convergence Protocol |
| SNDR | Sender |
| SNET | Southern New England Telephone Company |
| SNI | Subscriber Network Interface (SMDS) |
| SNMP | Simple Network Management Protocol |
| SNMP | Simple Network Management Protocol (IETF) |
| SNMP | Simple Network Management/Monitoring Protocol |
| SNMPIF | SNMP Interface Module (SZ) |
| SNMPv2 | SNMP version 2 (IETF) |
| SNP | Sequence Number Protection |
| SNR | Signal to Noise Ratio |
| SNR | Single Number Reach |
| SNRM | Set Normal Response Mode (HDLC) |
| SNRME | Set Normal Response Mode Extended (HDLC) |
| SO | Service Order |
| SO | Serving Office |
| SO | Switch Over (HA) |
| SOA | Service Order Administration |
| SOAC | Service Order Analysis & Control |
| SOAP | Simple Object Access Protocol (Protocol) |
| SOFE | Service Order Front End system |
| SOH | Section Overhead (SONET) |
| SOH | Start Of Header |
| SOH | Start of Header (BISYNC) |
| SOHO | Small Office - Home Office |
| SOHO | Small Office/Home Office |
| SOJ | Small Outline J-Lead |
| SONET | Synchronous Operating NETwork |
| SONET | Synchronous Operating/Optical NETwork |
| SONET | Synchronous Optical Network (BISYNC) |
| SORD | Service Order Retrieval and Distribution system |
| SP | SAR Sublayer Payload |
| SP | Service Provider |
| SP | Signaling Point (ANSI) |
| SP | Switch Processor (Cisco) |
| SP | Switching Point |
| SPA | Security Posture Assessment (Cisco) |
| SPA | Specific Poll Address (SS7) |
| SPAG | Standards Promotion and Application Group (BISYNC) |
| SPAN | Space Physics Analysis Network |
| SPAN | Switched Port Analyzer (Cisco) |
| SPARC | Scalable Performance Architecture |
| SPC | Signaling Point Code (SS7) |
| SPC | Statistical Process Control |
| SPC | Stored Program Control |
| SPC | Switched Permanent Circuits |
| SPCL | Spectrum Cellular |
| SPCR | Serial Port Control Register |
| SPCS | Stored Program Control System |
| SPCS | Stored Program Controlled Switch |
| SPD | Serial Presence Detect |
| SPDU | Session Protocol Data Unit |
| SPE | Synchronous Payload Envelope (SONET) |
| SPF | Shortest Path First |
| SPI | Software Plug In |
| SPID | Service Profile Identifier (ISDN) |
| SPIN | Service Provider Identification Number |
| SPLNP | Service Provider Local Number Portability |
| SPM | Space Switch Module |
| SPMP | Service Provisioning Measurement Plan |
| SPN | Service Provider Number |
| SPOC | Single Point of Contact |
| SPOF | Single Point of Failure |
| SPP | Sequenced Packet Protocol (NetWare) |
| SPRM | Supplementary Performance Report Message |
| SPT | Speech Processing and Telephony (telephone front-end) |
| SPTN | Single Protocol Transport Network |
| SPX | Sequenced Packet Exchange (NetWare) |
| SQ | Signal Quality Detector (EIA-232-E) |
| SQAM | Staggered Quadrature Amplitude Modulation |
| SQD | Signal Quality Detector |
| SQL | Structured Query Language |
| SQL | Structured Query Language (Database) |
| SQPSK | Staggered Quadrature Phase Shift Keying |
| SQR | Signal to Quantizing noise Ratio |
| SR-TB | Source Routing-Transparent Bridging (IEEE) |
| SR | Selective Routing |
| SR | Service Request |
| SR | Source Routing (IBM) |
| SRAM | Static RAM |
| SRD | Secondary Received Data (EIA-232-E) |
| SRDM | Sub Rate Data Multiplexer |
| SRE | Sicap Rating Engine |
| SREJ | Selective Reject (HDLC) |
| SRES | Signed Response (GSM) |
| SRF | Specialized Resource Function |
| SRF | Specifically Routed Frames (Token Ring SR) |
| SRI | SIP Relay Interface (SMDS) |
| SRL | Singing Return Loss |
| SRM | Signaling Route Management |
| SRP | Spatial Reuse Protocol |
| SRP | Specialized Resource Platform |
| SRP | Specialized Resource Point |
| SRT | Source Routing Transparent |
| SRTS | Synchronous Residual Time Stamp |
| SS6 | Signaling System 6 |
| SS7 | Signaling System #7 |
| SS7 | Signaling System 7 |
| SS | Spread Spectrum |
| SS | Supervisory Center |
| SS | Suplementary Services |
| SS | Supplementary Service Support |
| SS | Switching System (SMDS) |
| SSA | Station Select Address (BISYNC) |
| SSAP | Session Service Access Point (LLC) |
| SSB | Signal Side Band |
| SSBSC | Single Sideband Suppressed Carrier |
| SSCP | Service Switching and Control Point |
| SSCP | System Service Control Point |
| SSCP | System Service(s) Control Point |
| SSCS | Service Specific Convergence Sublayer |
| SSE | Silicon Switching Engine (Cisco) |
| SSF | Service Switching Function |
| SSF | Subservice Field (SS7) |
| SSH | Secure SHell |
| SSI | Single System Imaging |
| SSL | Secure Socket Layer |
| SSM | Single Segment Message (DQDB, SMDS) |
| SSML | Speech Synthesis Markup Language |
| SSN | SubSystem Number |
| SSN | Switched Services Network |
| SSP | SCCP Subsystem Prohibited |
| SSP | Service Switching Point (SS7) |
| SSP | Siemens Switching Processor |
| SSP | Silicon Switch Processor (Cisco) |
| SSPE | Service Switching Point Emulator |
| SSS | SMDS Switching System |
| SSS | Subscriber Switching Subsystem |
| SST | Synchronous Service Transport |
| SSTDMA | Spacecraft Switched Time Division Multiple Access |
| ST | SAR Sublayer Trailer |
| ST | Segment Type (DQDB, SMDS) |
| ST | Signaling Terminal |
| ST | STop (end of pulsing signal) |
| ST | Subscribers Terminal |
| STA | Spanning Tree Algorithm (LAN) |
| STACK | Start Acknowledgement |
| STCR | Syncron Transfer Control Register |
| STD | Secondary Transmitted Data (EIA-232) |
| STDM | Statistical Time Division Multiplexer |
| STE | Section Terminating Equipment (SONET) |
| STE | Signaling Terminal Equipment(V.75) |
| STE | Spanning-Tree Explorer (LAN) |
| STK | SIM Tool Kit (GSM - UMTS) |
| STK | SIM ToolKit |
| STM | SONET Terminal Multiplexer |
| STM | Synchronous Transfer Mode |
| STM | Synchronous Transport Module (SDH) |
| STP | Service Traffic Position |
| STP | Shielded Twisted Pair (Physical Layer) |
| STP | Signaling Transfer Point (SS7) |
| STP | Spanning Tree Protocol (Data Link, Bridges) |
| STP | Strategic Technical Project |
| STS-1 | Synchronous Transport Signal (level)-1 |
| STS | Synchronous Transport Signal (SONET) |
| STUN | Serial Tunnel (Cisco) |
| STX | Start of TeXt (BISYNC) |
| SU | Signal(ing) Unit |
| SUA | SCCP User Adaptation |
| SUERM | Signal Unit Error Rate monitor (SS7) |
| SUS | Suspend (SS7) |
| SVC | Signaling Virtual Channel (ATM) |
| SVC | Switched Virtual Call |
| SVC | Switched Virtual Circuit |
| SVC | Switched Virtual Circuit (Packet Switching) |
| SVC | Switched Virtual Connection |
| SVD | Simultaneous Voice Data |
| SVGA | Super Video Graphics Array |
| SVI | Subvector Identifier |
| SVS | Select Vertical Spacing (Teletex) |
| SVV | Subvector Value |
| SW | Seeker Wireless |
| SWAP | Shared Wireless Access Protocol |
| SWC | Serving Wire Center |
| SWC | Switching Wire Center |
| SWF-DS1 | Switched Fractional DS1 |
| SWF | Switched Fractional |
| SWFC | Sliding-Window Flow Control |
| SXS | Step-by-Step (Switching) |
| SXS | Step-by-step Switch |
| SYN | Synchronization |
| SYNCH | SYNCHronous |
| SYNTRAN | SYNchronous TRANsmission |
| System | |
| SZ | Seeker Zone |
| SMBZ - SaMBoZaur - test for propagation of define:
| |