• TS 129 527 : 8.3.0

    Current The latest, up-to-date edition.

    DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); UNIVERSAL MOBILE TELECOMMUNICATIONS SYSTEM (UMTS); TISPAN; ENDORSEMENT OF THE SIP-ISUP INTERWORKING BETWEEN THE IP MULTIMEDIA (IM) CORE NETWORK (CN) SUBSYSTEM AND CIRCUIT SWITCHED (CS) NETWORKS

    Publisher:  European Telecommunications Standards Institute

    Published: 

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