diff --git a/src/mod/endpoints/mod_sofia/mod_sofia.c b/src/mod/endpoints/mod_sofia/mod_sofia.c
index ba35444093..ca62286346 100644
--- a/src/mod/endpoints/mod_sofia/mod_sofia.c
+++ b/src/mod/endpoints/mod_sofia/mod_sofia.c
@@ -1468,6 +1468,9 @@ static switch_status_t activate_rtp(private_object_t *tech_pvt)
 		if ((vad_in && inb) || (vad_out && !inb)) {
 			switch_rtp_enable_vad(tech_pvt->rtp_session, tech_pvt->session, &tech_pvt->read_codec, SWITCH_VAD_FLAG_TALKING);
 			switch_set_flag_locked(tech_pvt, TFLAG_VAD);
+            switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "RTP Engage VAD for %s ( %s %s )\n", 
+                              switch_channel_get_name(switch_core_session_get_channel(tech_pvt->session)),
+                              vad_in ? "in" : "", vad_out ? "out" : "");
 		}
 	} else {
 		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "RTP REPORTS ERROR: [%s]\n", err);
@@ -4367,7 +4370,7 @@ static void event_callback(nua_event_t event,
 		}
 	}
 
-	if (status == 401 || status == 407) {
+	if (sip && (status == 401 || status == 407)) {
 		sip_r_challenge(status, phrase, nua, profile, nh, sofia_private, sip, tags);
 		goto done;
 	}
diff --git a/src/switch_rtp.c b/src/switch_rtp.c
index 43b462e748..5d7691c68a 100644
--- a/src/switch_rtp.c
+++ b/src/switch_rtp.c
@@ -1160,7 +1160,7 @@ static int rtp_common_write(switch_rtp_t *rtp_session, void *data, uint32_t data
 	if (switch_test_flag(rtp_session, SWITCH_RTP_FLAG_GOOGLEHACK) && rtp_session->send_msg.header.pt == 97) {
 		rtp_session->recv_msg.header.pt = 102;
 	}
-	
+
 	if (switch_test_flag(rtp_session, SWITCH_RTP_FLAG_VAD) && 
 		rtp_session->recv_msg.header.pt == rtp_session->vad_data.read_codec->implementation->ianacode &&
 		((datalen == rtp_session->vad_data.read_codec->implementation->encoded_bytes_per_frame) || 
@@ -1171,7 +1171,8 @@ static int rtp_common_write(switch_rtp_t *rtp_session, void *data, uint32_t data
 		uint32_t len = sizeof(decoded);
 		time_t now = time(NULL);
 		send = 0;
-		
+
+        
 		if (rtp_session->vad_data.scan_freq && rtp_session->vad_data.next_scan <= now) {
 			rtp_session->vad_data.bg_count = rtp_session->vad_data.bg_level = 0;
 			rtp_session->vad_data.next_scan = now + rtp_session->vad_data.scan_freq;
@@ -1191,7 +1192,7 @@ static int rtp_common_write(switch_rtp_t *rtp_session, void *data, uint32_t data
 			uint32_t energy = 0;
 			uint32_t x, y = 0, z = len / sizeof(int16_t);
 			uint32_t score = 0;
-			
+
 			if (z) {
 				for (x = 0; x < z; x++) {
 					energy += abs(decoded[y]);