Here are the most common telecom acronyms starting with S from the world of computer networking.
← Back to Full Telecom Acronyms| S | Source (lamp) |
| S&E | Service and Equipment |
| S/D | Signal-to-Distortion |
| S/N | Signal-to-noise ratio |
| SAA | Systems Application Architecture |
| SABM | Set Asynchronous Balanced Mode |
| SABO | Stand-Alone Billing Option |
| SAC | Serving Area Concept |
| SAC | Sight Administration Computer |
| SAC | Site Access Computer |
| SAC | Site Administrative Computer |
| SAC System | Status Alarm and Control System |
| SAIN | Sears Advanced Intelligent Network |
| SAM | Screen Access Manager (Northern Telecom Inc. Meridian DV-1 system) |
| SAM | Secure Access Multipoint |
| SAM | Sequential Access Method |
| SAM | Switch Access Module |
| SAM | Synchronous/Asynchronous Multiplexer |
| SAMEM | Stand-Alone Billing Memory |
| SAP | Symbolic Assembly Program |
| SAPI | Service Access Point Identifier |
| SAR | Segmentation and Reassembly Sublayer |
| SAR | Service Activation Request |
| SARM | Set Asynchronous Response Mode |
| SARTS | Switched Access Remote Test System |
| SAS | Statistical Analysis System |
| SAS | Switched Access System (Northern Telecom Inc. DMS-100) |
| SAS | System Administration Service |
| SAT | System Access Terminal |
| SATT | Strowger Automatic Toll Ticketing |
| SBA | Small Business Administration |
| SBAC | Source Billing for Attendant Calls |
| S-band | 1.55 GHz to 3.90 GHz (U.S.) |
| SBFPCEA | Small Business Federal Procurement Competition Enhancement Act |
| SBT | Six-Bit Transcode (same as Binary Coded Decimal (BCD)) |
| SC | Secondary Channel |
| SC | Sectional Center |
| SC1 | Speed Calling – Short list |
| SC2 | Speed Calling – Long list |
| SCA | Selective Call Acceptance |
| SCA | Short Code Address |
| SCA | Special Customer Arrangement |
| SCA | Special Customer Arrangement |
| SCAN | Switched Circuit Automatic Network |
| SCANS | Software Change Administration and Notification System |
| SCC | Specialized Common Carrier |
| SCC | State Corporation Commission |
| SCC | Switching Control Center |
| SCCOF | Selective Customer Control of Facilities |
| SCCP | Signaling Connection Control Part (SS7) |
| SCCS | Switching Control Center System |
| SCCS | Switching Control Center System |
| SCD | Source Control Drawing |
| SCE | Service Creation Environment |
| SCF | Selective Call Forwarding |
| SCF | Service Control Facility |
| SCI | Simulation Councils, Inc. |
| SCM | Subscriber Carrier Module |
| SCM-100R | Subscriber Carrier Module Rural |
| SCM-100S | Subscriber Carrier Module SLC-96 |
| SCM-100U | Subscriber Carrier Module Urban |
| SCP | Service Control Point |
| SCPC | Signal Channel Per Carrier |
| SCPMS | Service Control Point Management System |
| SCPTA | Service Control Point Transfer Application |
| SCR | Screening |
| SCR | Selective Call Rejection |
| SCR | Silicon Controlled Rectifier |
| SCS | Society for Computer Simulation |
| SCS | System Control Subsystem |
| SCSD | Scan and Signal Distribute |
| SCSI | Small Computer System Interface |
| SCSR | Single Channel Signaling Rate |
| SD | Signal Distribution |
| SD | Signal Distributor (equipment or circuit) |
| SD&D | Specific Development and Design |
| SDA | Selective Distinctive Alert |
| SDA | Switch Database Administration |
| SDDF | Supplementary Digital Distributing Frame |
| SDE | Software Development Environment |
| SDFI | Subscriber Digital Facility (ies) Interface |
| SDI | Selective Dissemination of Information |
| SDIS | Switched Digital Integrated Service |
| SDLC | Synchronous Data Link Control (or Controller) |
| SDM | Space Division Multiplexing |
| SDN | Software Defined Network |
| SDN | Software Defined Network |
| SDN | Subscriber Directory Number |
| SDN | Switched Digital Network |
| SDP | Service Delivery Point |
| SDPO | Sleeve Dial Pulse Originating |
| SDR | System Development Requirements |
| SDS | Scientific Data Systems |
| SDS | Switched Data Service |
| SDTA | Subscriber Data Transport Application |
| SDTA | Subscriber Database Transport Application |
| SDU | Synchronous Data Unit |
| SE CLR | Special Equipment Circuit Layout Record |
| SEAC | Standards Eastern Automatic Computer |
| SEC | Securities and Exchange Commission |
| SEC | Service and Equipment Code |
| SEMS | Switching Equipment Monitoring Subsystem |
| SER | Sales Expedite Request |
| SES | Service Evaluation System |
| SES | Severely Errored Seconds |
| SEVAS | Secure Voice Access System |
| SF | Single Frequency |
| SF signaling | Single-Frequency signaling |
| SFDEV | Store File Device |
| SFG | Simulated Facility Group |
| SFM | Switch Feature Manager |
| SFTF | System Functional Task Force |
| SG | Service Group |
| SH | Start Hunt |
| SHF | Super High Frequency |
| SHU | Stop Hunt |
| SI | System Integrity |
| SIAM | Society for Industrial and Applied Mathematics |
| SIC | Service Initiation Charge |
| SIC | Standard Industrial Classification |
| SICDR | Speaker Independent Continuous Digit Recognition (Voicecard) |
| SID | Society for Information Display |
| SIDD | Standard Interval Due Date |
| SIG | Special Interest Group |
| SIGARCH | Special Interest Group on Computer Architecture (of ACM) |
| SIGBDP | Special Interest Group on Business Data Processing (of ACM) |
| SIGBIO | Special Interest Group on Biomedical Computing (of ACM) |
| SIGCOSIM | Special Interest Group on Computer Systems Installation Management (of ACM) |
| SIGCSE | Special Interest Group on Computer Science Education (of ACM) |
| SIGI | Signaling Irregularities |
| SIGMICRO | Special Interest Group on Microprogramming (of ACM) |
| SIGOPS | Special Interest Group on Operating Systems (of ACM) |
| SIGPLAN | Special Interest Group on Programming Languages (of ACM) |
| SIGUCC | Special Interest Group on University Computer Centers (of ACM) |
| SILC | Selective Incoming Load Control |
| SIM | Service Implementation Management |
| SIMD | Single-Instruction Stream, Multiple-Data Stream |
| SIO | Serial Input/Output |
| SIS | Sales Implementation Specialist |
| SISD | Single-Instruction Stream, Single-Data Stream |
| SIT | Special Information Tones |
| SITA | Societe Internationale Telecommunications Aeronautiques |
| SIU | Shelf Interface Unit |
| SJF | Shortest Job First |
| SKIP | Skip Control |
| SLA | Service Level Agreement |
| SLAM | Simulation Language for Alternative Modeling |
| SLATTS | Selected Line and Trunk Translations System |
| SLC | Speech Link Connector |
| SLC | Speech Link Connector (frame) |
| SLC | Subscriber Line Carrier |
| SLC | Subscriber Line Charge |
| SLE | Screen List Editing |
| SLIM | Subscriber Loop Interface Module |
| SLIP | Serial Line Internet Protocol |
| SLL | Switched Logical Link |
| SLR | Simple LR (Left-to-Right, Rightmost) |
| SLS | Single-Line Sets |
| SLS | Switch Load Software |
| SLU | Subscriber Line Usage |
| SM | Switching Module |
| SMART | Service Management Analysis and Reporting Tool |
| SMAS | Switch Metallic Access System |
| SMASE | Systems Management Application Service Element |
| SMB | Server Message Block |
| SMC | Switch Management Center |
| SMC | System Management Center |
| SMCIS | System Management Center Information System |
| SMDR | Station Message Detail Recording |
| SMDS | Switched Multimegabit Data Service |
| SME | Subject Matter Expert |
| SME | Subject Matter Expert (IS) |
| SMF | Systems Management Function |
| SMFA | System Management Functional Area |
| SMG | Super Master Group |
| SMIS | Society for Management Information Systems |
| SMN | System Message Number |
| SMO | System Management Operations |
| SMP | Switching Module Processor |
| SMP | System Management Plan |
| SMPTU | Switching Module Processor and Time Slot Interchange Unit |
| SMPU | Switching Module Processor Unit |
| SMPU2 | Switching Module Processor Unit – Model 2 |
| SMRT | Signal Message Rate Timing |
| SMS | Switch Maintenance Subsystem |
| SMS 800 | Service Management System/800 |
| SMSA | Standard Metropolitan Statistical Area |
| SMTP | Simple Mail Transport Protocol |
| SMTP | Simplified Message Transfer Protocol |
| SN | Service Node |
| SNA | System Network Architecture |
| SNA | System Network Architecture |
| SNADS | SNA Distribution Services |
| SNAP | Standard Network Access Protocol |
| SNC | Service Node Controller |
| SNI | Subscriber Network Interface |
| SNMP | Simple Network Management Protocol |
| SNOCC | Satellite Network Operations Control Center (NOCC) |
| SNPA | Serving Number Plan Area |
| SNR | Signal to Noise Ratio |
| SNS | Switched Network Server |
| SNS | Switched Network Server |
| SO | Service Order |
| SO | Serving Office |
| SOACS | Service Order Administration Control System |
| SOAP | Symbolic Optimizer and Assembly Program |
| SOC | Service Oversight Center |
| SOE | Service Order Entry |
| SOE | Standard Operating Environment |
| SOEM | Service Order Entry Management |
| SOH | Start of Header (Bisync control character) |
| SOLVER | System for On-line Verification of Errors |
| SONET | Synchronous Optical Network |
| SONET | Synchronous Optical Network (NOCC) |
| SOP | Standard Operating Procedure |
| SOR | Successive Overrelaxation |
| SORD | Service Ordering Retrieval and Distribution |
| SOS | Service Order Subsystem |
| SOS | Share Operating System |
| SOS | System Operation Status |
| SOST | Special Operator Service Traffic |
| SOST | Special Operator Service Traffic |
| SOT | Small Office Terminal |
| SOTS | Service Order Tracking System |
| SOW | Statement of Work |
| SP | Signal (or Signaling) Processor |
| SP | Signal Point |
| SP | Spare |
| SP | Structured Programming |
| SPA | Systems and Procedures Association |
| SPARC | Scaleable Processor Architecture |
| SPARC | Standard Planning and Requirements Committee |
| SPB | Special Billing Number |
| SPC | Single Point Connection |
| SPC | Southern Pacific Communications |
| SPC | Statistical Process Control |
| SPC | Stored Program Control(led) |
| SPCD | Statistical Process Control Data (MFG) |
| SPCS | Stored Program Control System |
| SPD | Summary Plan Description |
| SPDF | Supplemental Personal Data Form (HR) |
| SPE | Switch Processing Element |
| SPEF | Special Pricing Evaluation Form |
| SPL | Simple Programming Language |
| SPLTS | Special Private Line Telephone System |
| SPM | Switching and Processing Module |
| SPOC | Single Point of Contact |
| SPOOL | Simultaneous Peripheral Operations On Line |
| SPP | Semipostpay |
| SPP | Standard Practice Procedures |
| SPR | Software Problem Report |
| SPRB | Special Pricing Review Board |
| SPSLT | Spare Select |
| SPSS | Switched Packet Switched Services |
| SQC | System Quality Conformance |
| SQD | Signal Quality Detector |
| SQL | Structured Query Language |
| SQL | Structured Query Language |
| SQUID | Superconducting Quantum Interference Device |
| SR | Service Representative |
| SR | Service Request (IS, PM) |
| S-R | Set-Reset (Flip-Flop) |
| SRAS | Special Routing Access Service |
| SRC | Spiral Redundancy Checking |
| SRL | Singing Return Loss |
| SRS | Service Request System |
| SRS | System Requirements Specifications |
| SRT | Station Ringer Test |
| SRTF | Shortest Remaining Time First |
| SRTU | Serial Remote Terminal Unit |
| SRU | Shared Resource Unit |
| SRU | Shared Resource Unit |
| SS | Silver Spring central office |
| SS | Special Services |
| SS7 | Signaling System No. 7 |
| SS7MS | Signaling System #7 Management System |
| SSA | Social Security Administration |
| SSB | Single Sideband Modulation |
| SSB-SC/AM | Single Sideband, Suppressed Carrier Amplitude Modulation |
| SSC | Special Services Center |
| SSC | System Control Center |
| SSCC | Special Services Control Center |
| SSCITS | Switched Services Customer Initiated Testing System |
| SSDP | Secondary Service Delivery Point |
| SSDS | System Status Display Screen |
| SSE | System Supervisor Equipment |
| SSE | Systems Support Engineering |
| SSEC | Selective Sequence Electronic Calculator |
| SSG | Special Service Group |
| SSI | Small-Scale Integration |
| SSI | Standard Serial Interface (AT&T) |
| SSLPDF | Single-Sided Low-Profile Distributing Frame |
| SSP | Scientific Subroutine Package (computers) |
| SSP | Service Switching Point (SS7 application) |
| SSP | Special Service Protection (telecommunications) |
| SSPPP | Special Services Provisioning Performance Plan |
| SSR | System and Signaling Requirements |
| SSSE | Switch Support Systems Engineering |
| SST | Short Supervisory Transition |
| SSU | Shared Storage Unit |
| SSU | System Supervisory Unit |
| SSUPS | Solid State Uninterruptible Power System |
| ST | Signaling Terminal |
| STA | Switch Translation Administration |
| STAC | Switch Technical Assistance Center (NOCC) |
| STAMP | Structural Time Series Analyzer, Modeler and Planner |
| STAP | System Test and Acceptance Plan |
| STAR | Self Testing and Repair (computer) |
| STAS | Switch Technical Assistance Support (NOCC) |
| STATDM | Statistical Time Division Multiplexing |
| STAT-MUX | Statistical Multiplexer |
| STC | Serving Test Center |
| STD | Short Term Disability (HR) |
| STD | Standard |
| STD | Subscriber Trunk Dialing (same as Direct Distance Dialing) |
| STDM | Synchronous Time Division Multiplexing |
| STDS | System Status Display Screen |
| STE | Signaling Terminal Equipment |
| STE | Standard Telephone Equipment |
| STLWS | Supplementary Trunk and Line Work Station |
| STP | Shielded Twisted Pair |
| STP | Signal Transfer Point |
| STR | Selective Trunk Reservation |
| STR | Synchronous Transmit Receive |
| STRESS | Structural Engineering Systems Solver |
| STRUDL | Structural Design Language |
| STS | Sears Technology Services |
| STS | Service Translation Scheme |
| STS | Serving Translation Scheme |
| STS | Shared Tenant Services |
| STS | Source Traffic Separation (DMS-100) |
| STS | Structural Time Series |
| STU | Secure Telephone Unit |
| STX | Start of Text (Bisync control character) |
| SUS | Suspended Service |
| SVC | Switched Virtual Circuit |
| SVS | Switched Voice Service |
| SWAC | Standards Western Automatic Computer |
| SWAP | Software Application Procedure |
| SWBD | Switchboard |
| SWC | Serving Wire Center |
| SWIFT | Society for Worldwide Interbank Financial Telecommunications |
| SWR | Standard Wave Ratio |
| SX | Simplex signaling |
| SXS | Step-by-Step (switch) |
| SYNC (or SYN) | bit or character used to synchronize a timeframe in a time division multiplex (TDM) |
| SYSGEN | System Generation |
| SYSMAN | Systems Manager |
