Function Description 4.154Call extension2N® Helios beeps 10 seconds before the call end to extend the call by 30 secondspress on your telephone (DTMF). You can use this function repeatedly. The visitor,however, cannot use this function!ProgrammingThe access to this mode is password-protected. For details refer to the Programmingsection. The voice menu considerably helps with programming 2N® Helios. Havingentered the programming mode, you can also alter any parameter and memorysettings.Caution The above mentioned functions (except for calls to 2N® Helios) require atone-dialling telephone set.Signals OverviewSignal Name MeaningConfirm-ationsent immediately after line seizure for incoming calls (can be heardby the calling party);signals switch activation (by DTMF) - can be heard by the person “atthe other end“ who activated the switchRefusalsignals that a non-programmed button has been pressed;signals that an incorrect password has been entered on the keypad;can be heard from the loudspeaker after line connection (firstconnection signalling);signals an incoming call if 2N® Helios has not been programmed;When a disabled function has been entered from the keypad.Storing Signals switch deactivation (if activated by DTMF).Hang-up Sent to notify that the call is terminated (in all cases).Long continuous tonesignals that the unit is going through full initialisation or diallingmemory or password clearing;Heard from the loudspeaker while the switch is activated by keypad.“Attention, yourcall is beingterminated”signals that the preset maximum call time will elapse within 10seconds during outgoing and incoming calls“Wait, please“ Optional message during call establishing“Communicatornumber...............is calling”Optional message for communicator identificationVoice menu In the programming mode.