Hi George, Check these https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=19&cad=rja&uact=8&ved=2ahUKEwiw0qqYxoDeAhUqB8AKHZyrApMQFjASegQIBhAC&url=https%3A%2F%2Fwww.broadband-forum.org%2Ftechnical%2Fdownload%2FTR-111.pdf&usg=AOvVaw2aAy2FS06B5m6ULF_DyOoN https://www.qacafe.com/tr-069-training/acs-discovery/ -- ‘Tunde Oyeyemi