only take remote_tag on incoming reply if 101 < code < 300 (remote tag set: "dialog established")

git-svn-id: http://svn.berlios.de/svnroot/repos/sems/trunk@124 8eb893ce-cfd4-0310-b710-fb5ebe64c474

core/AmSipDialog.cpp

@@ -143,7 +143,12 @@ void AmSipDialog::updateStatus(const AmSipReply& reply)
 
     //t->reply_code = reply.code;
 
-    if(remote_tag.empty() && !reply.remote_tag.empty())
+	// rfc3261 12.1
+	// && method==INVITE
+	// Dialog established only by 101-199 or 2xx 
+	// responses to INVITE
+	if ((reply.code >= 101) && (reply.code < 300) &&  
+		(remote_tag.empty() && !reply.remote_tag.empty()))
 	remote_tag = reply.remote_tag;
 
     // allow route overwritting