From f8441a6aaf0550998fded98d01934036d0d2e0f4 Mon Sep 17 00:00:00 2001
From: Harald Welte <laforge@gnumonks.org>
Date: Sun, 21 Nov 2010 18:46:36 +0100
Subject: [PATCH] add ladder diagrams for MO and MT SMS

---
 mo_sms.lad | 16 ++++++++++++++++
 mt_sms.lad | 16 ++++++++++++++++
 2 files changed, 32 insertions(+)
 create mode 100644 mo_sms.lad
 create mode 100644 mt_sms.lad

diff --git a/mo_sms.lad b/mo_sms.lad
new file mode 100644
index 0000000..2c6f1a8
--- /dev/null
+++ b/mo_sms.lad
@@ -0,0 +1,16 @@
+[entities]
+# define the entities in the system (in order)
+ms
+msc
+smsc
+
+[messages]
+# define the protocol messages in-order
+ms	msc	"Establish Connection via BTS/BSC" dashed
+ms	msc	"Optional authentication + ciphering" both
+ms	msc	"CP-DATA containing RP-DATA (SMS SUBMIT)"
+msc	smsc	"MNSMS-EST-IND (RP-DATA)"
+msc	ms	"CP-ACK for previous CP-DATA"
+smsc	msc	"MNSMS-DATA-REQ (RP-ACK)"
+msc	ms	"CP-DATA containing RP-ACK"
+ms	msc	"CP-ACK for previous CP-DATA"
diff --git a/mt_sms.lad b/mt_sms.lad
new file mode 100644
index 0000000..71894ae
--- /dev/null
+++ b/mt_sms.lad
@@ -0,0 +1,16 @@
+[entities]
+# define the entities in the system (in order)
+ms
+msc
+smsc
+
+[messages]
+# define the protocol messages in-order
+smsc	msc	"NMSMS-EST-REQ (RP-DATA)"
+msc	ms	"Paging procedure via BSC/BTS" dashed
+ms	msc	"Establish Connection via BTS/BSC" dashed
+msc	ms	"CP-DATA containing RP-DATA (SMS DELIVER)"
+ms	msc	"CP-ACK for previous CP-DATA"
+ms	msc	"CP-DATA containing RP-ACK"
+msc	smsc	"NMSMS-DATA-IND (RP-DATA)"
+msc	ms	"CP-ACK for previous CP-DATA"