From 88a64784b9deaee2c734f227eabd804ac20956f4 Mon Sep 17 00:00:00 2001
From: Stefan Sayer <stefan.sayer@googlemail.com>
Date: Mon, 15 Nov 2010 17:23:18 +0100
Subject: [PATCH] DSM example: handling CANCEL while INVITE pending

---
 doc/dsm/examples/handle_cancel.dsm | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 doc/dsm/examples/handle_cancel.dsm

diff --git a/doc/dsm/examples/handle_cancel.dsm b/doc/dsm/examples/handle_cancel.dsm
new file mode 100644
index 00000000..efcc3e98
--- /dev/null
+++ b/doc/dsm/examples/handle_cancel.dsm
@@ -0,0 +1,21 @@
+-- handle cancel correctly
+-- by replying with 487
+-- 
+-- this is only necessary if run_invite_event=yes
+-- and final reply to INVITE is delayed
+-- so CANCEL can happen while call setup is proceeding
+import(mod_dlg);
+initial state BEGIN;
+
+transition "inv got" BEGIN - invite / {
+ set($connect_session=0);
+ dlg.reply(101, Still Trying);
+} -> WAIT;
+
+transition "cancel" BEGIN - hangup / {
+ dlg.reply(487, canceled);
+ stop(false); 
+} -> END;
+
+state WAIT;
+state END;
\ No newline at end of file