Merged revisions 184565 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

........
  r184565 | file | 2009-03-27 10:06:45 -0300 (Fri, 27 Mar 2009) | 9 lines
  
  Fix an issue where nat=yes would not always take effect for the RTP session on outgoing calls.
  
  If calls were placed using an IP address or hostname the global nat setting was copied over
  but was not set on the RTP session itself. This caused the RTP stack to not perform symmetric RTP
  actions.
  
  (closes issue #14546)
  Reported by: acunningham
........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@184566 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -4876,6 +4876,8 @@ static int create_addr(struct sip_pvt *dialog, const char *opeer, struct sockadd
 		return res;
 	}
 
+	do_setnat(dialog, ast_test_flag(&dialog->flags[0], SIP_NAT) & SIP_NAT_ROUTE);
+
 	ast_string_field_set(dialog, tohost, peername);
 
 	/* Get the outbound proxy information */