... powered by high speed CPU and dedicated DSP chip sets, which allow AG2016S to be used in heavy call traffic ... and IP interfaceSecurity IP filter, port number changing, traffic shapingConfiguration/ManagementWeb GUIConfiguration, firmware upgrade, status monitoring, ... SNMPv2, Telnet, TFTP, SyslogAuxiliary MaintenanceInquiry and set by phone dialer, factory reset buttonProtocol and standardProtocol SIP ...