Index: asterisk/apps/app_meetme.c
===================================================================
--- asterisk/apps/app_meetme.c	(revision 376309)
+++ asterisk/apps/app_meetme.c	(working copy)
@@ -6481,6 +6481,16 @@
 		}
 		if (done)
 			break;
+
+		/* check that SLA station that originated trunk call is still alive */
+		if (args->station && ast_device_state(args->station->device) == AST_DEVICE_NOT_INUSE) {
+			ast_debug(3, "Originating station device %s no longer active\n", args->station->device);
+			trunk_ref->trunk->chan = NULL;
+			break;
+		}
+		/* avoid tight loop... sleep for 1/10th second */
+		ast_safe_sleep(trunk_ref->chan, 100);
+
 	}
 
 	if (!trunk_ref->trunk->chan) {