| Abbreviation | Definition |
|---|---|
| SCE | Service Creation Environment |
| SCH | Synchronization Channel |
| SCM | Service Class Mark |
| SCM | Single Carrier Modulation |
| SCN | Switched Circuit Network |
| SCO | Synchronous Connection Oriented |
| SCP | Service Commitment Period |
| SCP | Service Control Point |
| SCPC | Single Channel Per Carrier |
| SCPT | Surveillance de la correspondance par poste et télécommunication |
| SCRB | SBC (Single Board Computer) Control and Reset Box |
| SCRG | Servicing Carrier Reference Guide |
| SCRUM | Systematic Customer Resolution Unraveling Meeting |
| SCTE | Society of Cable Telecommunications Engineers |
| SCTP | Stream Control Transmission Protocol |
| SCU | Service Creation Unit |
| SCU | System Control Unit |
| SCUR | Session Charging with Unit Reservation |
| SD | Speed Dial |
| SDCCH | Stand-alone Dedicated Control CHannel |