Index: apps/app_meetme.c
===================================================================
--- apps/app_meetme.c	(revision 170112)
+++ apps/app_meetme.c	(working copy)
@@ -1372,7 +1372,9 @@
 	if (conf->announcethread != AST_PTHREADT_NULL) {
 		ast_mutex_lock(&conf->announcelistlock);
 		conf->announcethread_stop = 1;
-		ast_softhangup(conf->chan, AST_SOFTHANGUP_EXPLICIT);
+		if (conf->chan) {
+			ast_softhangup(conf->chan, AST_SOFTHANGUP_EXPLICIT);
+		}
 		ast_cond_signal(&conf->announcelist_addition);
 		ast_mutex_unlock(&conf->announcelistlock);
 		pthread_join(conf->announcethread, NULL);