Small tool to generate ladder diagrams for network protocols. obsoleted by mscgen.
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
gen_ladder/mo_call_roaming.lad

38 lines
820 B

[global]
title "Mobile Originated (MO) call: Roaming case"
[entities]
ms "MS (Caller)"
bts "BTS"
bsc "BSC"
vmsc "MSC/VLR"
hlr "HLR/AUC"
b "B (Called)"
[messages]
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 "CM SERVICE REQ"
bsc vmsc "COMPL L3 INFO (CM SERV 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 bsc "BSSMAP CIPH MOD CMD"
bsc bts "RSL ENCR CMD"
bts 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 CALL CONFIRMED"
ms b "Open Voice Channel" both dashed
ms vmsc "CC DISC IND"
vmsc b "ISUP REL"