1 files changed, 3 insertions, 0 deletions
diff --git a/zaptel.h b/zaptel.h
index a096fc0..bb872e1 100755
--- a/zaptel.h
+++ b/zaptel.h
@@ -804,6 +804,9 @@ struct zt_tone_def {		/* Structure for zone programming */
 /* Timer event -- ping ready */
 #define ZT_EVENT_TIMER_PING		16
 
+/* Ring Begin event */
+#define ZT_EVENT_RINGBEGIN  18
+
 /* Polarity reversal event */
 #define ZT_EVENT_POLARITY  17