SA Security Association
SAP Session Announcement Protocol
SBM Subnet Bandwidth Manager
SDH Synchronous Digital Hierarchy
SDP Session Description Protocol
SDR State-Dependent Routing
SDU Service Data Unit
SG Study Group
SGM Small-Group Multicast
SGSN Serving GPRS Support Node
SIMP Satellite Interface Message Processor
SIP Session Initiation Protocol
SIS Service Instance Specification
SLA Service Level Agreement
SLND Server LND
SLO Service Level Object
SLR Send Loudness Rating
SLS Service Level Specification
SM Simple Multicast
SME Small and Medium Enterprises
SMTP Simple Mail Transfer Protocol
SN Subnetwork
SNMP Simple Network Management Protocol
SO SubOptimality
SONET Synchronous Optical Network
SOS Service Offer Specification
SP Service Provider
SPF Shortest Path First
SPI Security Parameter Index
SQA Service Quality Agreement
SRED Shock-absorber RED
SRI Stanford Research International
srTCM single rate Three Colour Marker
SRTT Smoothed Round Trip Time
SS7 Signalling System no 7
SSL Secure Socket Layer
SSM Source Specific Multicast
SSRC Synchronisation Source identifier
RSVP Resource reSerVation Protocol
RT Real Time
RTCP RTP Control Protocol
RTFM Real Time Flow Measurement
RTO Retransmission Timeout
RTP Real-time Transport Protocol
RTSP Real-Time Streaming Protocol
RTT Round Trip Time
RTTM Round Trip Time Measurement
RTTVAR Round Trip Time Variation
ssthresh slow start threshold
STM Synchronous Transfer Mode
STS Service Template Specification
SYN SynchronisationT1 Standards Committee T1, Telecommunication
(related to Alliance for Telecommunications Industry
Solutions)
TCA Traffic Conditioning Agreement
TCM Three Colour Marker
TCP Transmission Control Protocol
TCS Traffic Conditioning Specification
TD Tail-Drop
TDR Time-Dependent Routing
TE Terminal Equipment
Traffic Engineering
TFRC TCP Friendly Rate Control
TG Traffic Generator
TIP Terminal Interface Message Processor
TIPHON Telecommunications and Internet Protocol
Harmonisation Over Networks
TL Topological Link
TLC Transport Layer Security
TLV Type-Length-Value
TMF TeleManagement Forum
TMSC Transit MSC
topEndDir topological End Directionality
TOS Type Of Service
TRC Transcoder
trTCM two rate Three Colour Marker
TTC Telecommunication Technology Committee
TTL Time-To-Live
TTR Time To Repair
Tx TransmitUA Unavailability
UAC User Agent Client
UAS User Agent Server
UCL University College London
UDP User Datagram Protocol
UE User Equipment
UHO User Home Organisation
UML Unified Modelling Language
UMTS Universal Mobile Telecommunication System
UN User Network
UNI User Network Interface
URG Urgent
URI Universal Resource Identifier
URL Universal Resource Locator
UTRAN UMTS Terrestrial Radio Access Network