[entities]
ms	"MS (Caller)"
vmsc	"MSC/VLR"
hlr	"HLR/AUC"
b	"B (Called)"

[messages]
ms	vmsc	"Channel Establishment"
ms	vmsc	"CM SERVICE REQ"
vmsc	hlr	"MAP SEND AUTH INFO req"
hlr	vmsc	"MAP SEND AUTH INFO resp"
vmsc	ms	"MM AUTH REQ"
ms	vmsc	"MM AUTH RESP"
vmsc	ms	"RR CIPH MOD CMD"
ms	vmsc	"RR CIPH MOD COMPL"
ms	vmsc	"CC SETUP[MSISDN]"
vmsc	b	"ISUP IAM[MSISDN]"
b	vmsc	"ISUP ACM"
vmsc	ms	"CC ALERTING"
b	vmsc	"ISUP ANM"
vmsc	ms	"CC CONNECT"
ms	b	"Open Voice Channel" both dashed
ms	vmsc	"CC DISCONNECT"
vmsc	b	"ISUP REL"