... access system can provide broadband access services for enterprises or multi-dwellings, offer internet access service, VoIP and VOD for ... -detecting, auto-configuration, and auto firmware upgrade, etc. Integrated OAM remote configuration and maintenance function. Support rich QinQ VLAN functions ... s)/G.729, auto-negotiate with call agent. Echo cancellation exceeding ITU-T G.165/G.168-2002, up to 128ms ...