From fa4a8376447bb3458267dcce9f2a04f2bf21319f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Renato=20Foot=20Guimar=C3=A3es=20Costallat?=
 <costallat@hotmail.com>
Date: Thu, 12 Oct 2023 11:57:21 -0300
Subject: [PATCH] Add 'global' option to 'optional' field in sipp.dtd

Missing the 'global' option for 'optional' on sipp.dtd file.
---
 sipp.dtd | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sipp.dtd b/sipp.dtd
index ce8f4672..3e6706f2 100644
--- a/sipp.dtd
+++ b/sipp.dtd
@@ -27,7 +27,7 @@
 <!ATTLIST recv %messageCmdCommon; >
 <!ATTLIST recv response NMTOKEN #IMPLIED >
 <!ATTLIST recv request CDATA #IMPLIED >
-<!ATTLIST recv optional (true|false) #IMPLIED >
+<!ATTLIST recv optional (true|global|false) #IMPLIED >
 <!ATTLIST recv ignosesdp (true|false) #IMPLIED >
 <!ATTLIST recv rrs (true|false) #IMPLIED >
 <!ATTLIST recv auth (true|false) #IMPLIED >