Function Description 4.157Keypad Operation Instructions - Summary Door opening – code lockEnter any valid password for switch 1 and .Warning! Password 00 may not be used! Switch 2 activation:Enter any valid password for switch 2 and .Warning! Password 11 may not be used! Traditional button telephonegets 2N® Helios ready to dial a number.… Dials a number.Transmits into tone dialling during pulse dialling.Transmits a character in tone dialling.Hangs up anytime during a call. DTMF transmission during outgoing call(of a single button, not in the telephone mode!)… - tone-dials a number.- The character is sent normally.- The character is sent normally. Buttons substitution:01…54 – the number that complies with the selected button (memory) isdialled after a timeout.- If an asterisk is pressed after number 01…54, the number is dialledimmediately unless it is identical with the set password.