--- channels/chan_dahdi.c.org	2010-04-08 22:37:38.000000000 +1200
+++ channels/chan_dahdi.c	2010-04-08 22:39:53.000000000 +1200
@@ -5971,6 +5971,10 @@ static void *ss_thread(void *data)
 				}
 			}
 #endif
+			if (p->pri->overlapdial & DAHDI_OVERLAPDIAL_INCOMING) {
+				ast_indicate(chan, AST_CONTROL_PROCEEDING);
+			}
+
 			dahdi_enable_ec(p);
 			ast_setstate(chan, AST_STATE_RING);
 			res = ast_pbx_run(chan);