l simple network management protocol simple object access protocol small office/home office service-oriented programming SONET synchronous optical network stored program control security parameter index structured query language xxviii Glossary signaling system No 7 secure shell service set identifier secure socket(s) layer storage service provider service switching point 1.544 Mbit/s transmission capability/rate/facility/path traffic condition agreement transaction capabilities application protocol time division duplex (fig 13.28/13.29) time division multiplex time division multiple access TD-SCDMA time division - synchronous code division multiple access traffic engineering telephony server transport layer security telecommunications network, telecommunication management network telecom operations map type of service tools for radio access management transit switching centre T-SGW transport signalling gateway transit serving node time to customer time to market time to service universal description, discovery and integration user datagram protocol user-network interface universal mobile telecommunication system uniform resource identifier universal subscriber identity module UTRAN universal terrestrial radio access network value-added service provider virtual container at level 4 (140Mbit/s in PDH, plesiochronous digital hierarchy) very high bit rate digital subscriber line virtual home environment visited location register vector mark-up language VoATM voice over ATM voice over frame relay Glossary voice over IP virtual private network vertical service provider wide area network (as opposed to local area network) wireless application protocol wireless application service provider WCDMA wideband code division multiple access wired equivalent privacy wireless Internet WAP identity module wireless Internet service provider wireless local area network web services description language web services flow language wireless session protocol wireless transport layer security world wide web (any) digital subscriber line