1 files changed, 1 insertions, 0 deletions
diff --git a/src/ivcall.c b/src/ivcall.c
index 549d56f..7491343 100644
--- a/src/ivcall.c
+++ b/src/ivcall.c
@@ -325,6 +325,7 @@ uint8_t *filter_dle(uint8_t *data, size_t size, size_t *ret_size, int *flag, int
                     
                 default :
                     /* We received some DTMF signals, but we ignore them. */
+		    fprintf(stderr, "** DTMF: %c\n", *s);
                     break;
 	    }