Turn off qualify on uncached realtime peers.

(Closes issue #13383)


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@153114 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -17326,6 +17326,14 @@ static struct sip_peer *build_peer(const char *name, struct ast_variable *v, str
 				ast_log(LOG_WARNING, "Qualification of peer '%s' should be 'yes', 'no', or a number of milliseconds at line %d of sip.conf\n", peer->name, v->lineno);
 				peer->maxms = 0;
 			}
+			if (realtime && !ast_test_flag(&global_flags[1], SIP_PAGE2_RTCACHEFRIENDS) && peer->maxms > 0) {
+				/* This would otherwise cause a network storm, where the
+				 * qualify response refreshes the peer from the database,
+				 * which in turn causes another qualify to be sent, ad
+				 * infinitum. */
+				ast_log(LOG_WARNING, "Qualify is incompatible with dynamic uncached realtime.  Please either turn rtcachefriends on or turn qualify off on peer '%s'\n", peer->name);
+				peer->maxms = 0;
+			}
 		} else if (!strcasecmp(v->name, "maxcallbitrate")) {
 			peer->maxcallbitrate = atoi(v->value);
 			if (peer->maxcallbitrate < 0)