ETSI TS 101 252
ETSI TS 101 252
Digital cellular telecommunications system (Phase 2+) (GSM); Description for the use of a Shared Inter Working Function (SIWF) in a GSM PLMN; Stage 2 (GSM 03.54 version 6.0.0 Release 1997)
standard published 04/01/1999 by European Telecommunications Standards Institute
