Function Description 4.1592N® Helios Statuses and Available OperationsOperationHang-upOutgoing callIncoming callProgrammingTelephone modeButton pressing – new call --- --- Call extension - DTMF --- --- Call termination - DTMF --- Hang-up upon continuous, busy or ringingtone --- Switch activation – DTMF password --- --- Programming start --- --- --- ---KeypadSwitch activation – code lock 1) --- --- ---DTMF into outgoing call --- --- --- 2)Button replacing (speed dial from memory) 1) --- --- ---Off-hook by key (into telephone mode) --- --- --- ---Hang-up by key --- 1) --- --- Hang-up by key --- 1) --- --- ---Explanatory notes:… Yes, always … Yes if this function is programmedThis holds if DTMF is disabled during outgoing calls (the corresponding tone istransmitted in that case).If pulse dialling is selected, it is possible to switch into tone dialling by pressing(but not vice versa!).