1 files changed, 1 insertions, 1 deletions
diff --git a/wctdm.c b/wctdm.c
index 623ca84..6fda7c6 100755
--- a/wctdm.c
+++ b/wctdm.c
@@ -933,7 +933,7 @@ static int wcfxs_initialize(struct wcfxs *wc)
 	wc->span.deflaw = ZT_LAW_MULAW;
 	for (x=0;x<wc->cards;x++) {
 		sprintf(wc->chans[x].name, "WCFXS/%d/%d", wc->pos, x);
-		wc->chans[x].sigcap = ZT_SIG_FXOKS | ZT_SIG_FXOLS | ZT_SIG_FXOGS;
+		wc->chans[x].sigcap = ZT_SIG_FXOKS | ZT_SIG_FXOLS | ZT_SIG_FXOGS | ZT_SIG_SF;
 		wc->chans[x].chanpos = x+1;
 		wc->chans[x].pvt = wc;
 	}