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ETSI TS 123 035
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ETSI TS 123 035 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Immediate Service Termination (IST); Stage 2 (3GPP TS 23.035 version 14.0.0 Release 14)
standard by European Telecommunications Standards Institute, 03/01/2017
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Full Description
ETSI TS 123 035 specifies the stage 2 description of the Immediate Service Termination (IST) service whichprovides the means for the HPLMN to terminate all the activities of an HPLMN subscriber in a VPLMN.Two implementations of IST are described: an implementation based on CAMEL, and an implementation based on a new MAP message.