diff --git a/src/switch_estimators.c b/src/switch_estimators.c
index 2aedf8cc6e..61552644b1 100644
--- a/src/switch_estimators.c
+++ b/src/switch_estimators.c
@@ -139,7 +139,7 @@ SWITCH_DECLARE(switch_bool_t) switch_kalman_cusum_init(cusum_kalman_detector_t *
 	return TRUE;
 }
 
-SWITCH_DECLARE (switch_bool_t) switch_kalman_cusum_detect_change(cusum_kalman_detector_t * detector, float measurement, float rtt_avg)
+SWITCH_DECLARE (switch_bool_t) switch_kalman_cusum_detect_change(cusum_kalman_detector_t * detector, float measurement, float avg)
 {
 	float K=0;
 	float P=0;
@@ -153,8 +153,8 @@ SWITCH_DECLARE (switch_bool_t) switch_kalman_cusum_detect_change(cusum_kalman_de
 
 	detector->N++;
 	current_average = detector->last_average + (measurement - detector->last_average)/detector->N ;
-	if (rtt_avg > current_average) {
-		current_average = rtt_avg;
+	if (avg > current_average) {
+		current_average = avg;
 	}
 	current_q =  detector-> last_q +  (measurement - detector->last_average) * (measurement - current_average);
 	if (detector->N != 0)
diff --git a/src/switch_rtp.c b/src/switch_rtp.c
index 199c9e95f7..aa25ea1c79 100644
--- a/src/switch_rtp.c
+++ b/src/switch_rtp.c
@@ -1953,7 +1953,7 @@ static void rtcp_stats_init(switch_rtp_t *rtp_session)
 			rtp_session->detectors[EST_RTT] = switch_core_alloc(rtp_session->pool, sizeof(*detectors[0]));
 			switch_kalman_cusum_init(rtp_session->detectors[EST_RTT],0.005,0.5);
 			rtp_session->detectors[EST_LOSS] = switch_core_alloc(rtp_session->pool, sizeof(*detectors[0]));
-			switch_kalman_cusum_init(rtp_session->detectors[EST_LOSS],0.005,0.5);
+			switch_kalman_cusum_init(rtp_session->detectors[EST_LOSS], 0.5, 1);
 	}
 }