NC-AD300E Manual- 23 -5.2 Operation configuration5.2.1 DSP functionDSP function is the essential function of the device must be properly set up, In the left side ofconfiguration tool click"system parameters" index, and modify the parameters in the right side.AD300E have two DSP, usually according above of the configurationNote: you need to config “MFC/DTMF” or “DTMF(06)”to detail user buttonAfter completion of editing, write to ROM and restart the device to take effect.5.2.2 Telnet serviceIn the left side of configuration tool, pleas click"system parameters" index, and modify theparameters in the right sideHere can modify telnet listenportAfter completion of editing, write to ROM and restart the device to take effect.5.2.3 Login UserSpecify the telnet connection and configuration tool for certified users, up to 10 users set up.Choose “Loginuser” in parameter index area,and you can find there is loginuser list in the rightside. Using “data” menu,toolbar or right menu to do add and delete operation.