Glossary

Explore our library of thousands of telecoms terms and acronyms defined for on-the-job reference or learning new material.

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SCIM

Service Capability interaction Manager

SCM

Station Class Mark

SigComp

Signalling Compression

SIM

Subscriber Identity Module

SIM lock

SIMPLE

SIP for Instant Messaging and Presence Leveraging

Simplex

Simulcast

Sleep mode

Slotted Mode

SM

Session Management

SM-DP

Subscription Manager - Data Preparation

SM-SR

Subscription Manager - Secure Routing

Smart antenna

Smart card

SMDS

Switched Multi megabit Data Service

SME

Short Message Entity

SMF

Service Management Function

SMF

Session Management Function

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SCIM

SCM

Seamless handover

Secondary CDMA Channel

Security Mode

Semiduplex operation