From 290db3578a8c7939b0c732753aeea55a6874d394 Mon Sep 17 00:00:00 2001
From: Brian West <brian@freeswitch.org>
Date: Mon, 2 Nov 2009 23:31:08 +0000
Subject: [PATCH]  don't blow up if its null

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@15324 d0543943-73ff-0310-b7d9-9358b9ac24b2
---
 src/mod/endpoints/mod_sofia/sofia.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mod/endpoints/mod_sofia/sofia.c b/src/mod/endpoints/mod_sofia/sofia.c
index d3a3edb95b..6a991e8ca9 100644
--- a/src/mod/endpoints/mod_sofia/sofia.c
+++ b/src/mod/endpoints/mod_sofia/sofia.c
@@ -4451,7 +4451,7 @@ void sofia_handle_sip_i_refer(nua_t *nua, sofia_profile_t *profile, nua_handle_t
 									moh = tmp;
 								}
 								
-								if (moh && !strcasecmp(moh, "silence")) {
+								if (!zstr(moh) && !strcasecmp(moh, "silence")) {
 									moh = NULL;
 								}