D'oh Over zealous packet eating

src/switch_rtp.c

@@ -2494,7 +2494,8 @@ static int rtp_common_read(switch_rtp_t *rtp_session, switch_payload_t *payload_
 			}
 		}
 
-		if (rtp_session->recv_msg.header.pt != 13 && 
+		if (bytes && !switch_test_flag(rtp_session, SWITCH_RTP_FLAG_PROXY_MEDIA) && !switch_test_flag(rtp_session, SWITCH_RTP_FLAG_UDPTL) &&
+			rtp_session->recv_msg.header.pt != 13 && 
 			rtp_session->recv_msg.header.pt != rtp_session->recv_te && 
 			(!rtp_session->cng_pt || rtp_session->recv_msg.header.pt != rtp_session->cng_pt) && 
 			rtp_session->recv_msg.header.pt != rtp_session->payload) {