ETSI TS 132 015 English Printed Edition English PDF Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Telecommunication Management; Charging and billing; 3G call and event data for the Packet Switched (PS) domain (3GPP TS 32.015 version 3.5.0 Release 1999)

standard published 03/01/2001 by European Telecommunications Standards Institute