fixed the busy problem (dialstatus was not busy when we called a busy extension)

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@51966 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_misdn.c

@@ -3848,6 +3848,10 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
 		
 			ch->state=MISDN_DISCONNECTED;
 			start_bc_tones(ch);
+
+			if (ch->ast) ch->ast->hangupcause=bc->cause;
+			ast_queue_control(ch->ast, AST_CONTROL_BUSY);
+			ch->need_busy=0;
 			break;
 		}