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[global]
title	"GSM Location Update"

[entities]
# define the entities in the system (in order)
ms	"MS"
bts	"BTS"
bsc	"BSC"
# msc means MSC + VLR
msc	"MSC/VLR"
hlr	"HLR/AUC"

[messages]
# define the protocol messages in-order
ms	bts	"L1 RACH burst"
bts	bsc	"RSL CHAN RQD"
bsc	bts	"RSL CHAN ACT REQ"
bts	bsc	"RSL CHAN ACT ACK"
bsc	bts	"RSL IMM ASS CMD"
bts	ms	"RR IMMEDIATE ASSIGN"
ms	bsc	"MM LOC UPD REQ"
bsc	msc	"COMPL L3 INFO (LOC UPD REQ)"
msc	ms	"MM IDENTITY REQUEST"
ms	msc	"MM IDENTITY RESPONSE"
msc	hlr	"MAP SEND AUTH INFO req"
hlr	msc	"MAP SEND AUTH INFO resp"
msc	ms	"MM AUTH REQ"
ms	msc	"MM AUTH RESP"
msc	hlr	"MAP UPD LOC AREA req"
hlr	msc	"MAP INSERT SUBSCR DATA req"
msc	hlr	"MAP INSERT SUBSCR DATA resp"
hlr	msc	"MAP UPD LOC AREA resp"

msc	bsc	"BSSMAP (RR CIPH MOD CMD)"
bsc	bts	"RSL ENCR CMD"
bts	ms	"RR CIPH MOD CMD"
ms	msc	"RR CIPH MOD COMPL"

msc	ms	"DTAP(MM LOC UPD RESP)"