diff --git a/conf/vars.xml b/conf/vars.xml
index fc4a313bf0..6fea40b88c 100644
--- a/conf/vars.xml
+++ b/conf/vars.xml
@@ -55,7 +55,7 @@
        H264             - H.264 Video
 
   -->
-  <X-PRE-PROCESS cmd="set" data="global_codec_prefs=G722,PCMU,PCMA,GSM,H263"/>
+  <X-PRE-PROCESS cmd="set" data="global_codec_prefs=G722,PCMU,PCMA,GSM"/>
   <X-PRE-PROCESS cmd="set" data="outbound_codec_prefs=PCMU,PCMA,GSM"/>
   <X-PRE-PROCESS cmd="set" data="xmpp_client_profile=xmppc"/>
   <X-PRE-PROCESS cmd="set" data="xmpp_server_profile=xmpps"/>