User Instructions 4.1684.1 User InstructionsAudio Unit - Lift CabinThe lift cabin audio unit is intended for lay users. Nevertheless, instructions can beplaced in the lift cabin, e.g., to help the people trapped in the lift communicate withthe dispatching centre.Meaning of Symbols The yellow “Wait” symbol is on whenever a connection is being establishedwith the dispatching centre. The green symbol is on whenever a connection has been established andconfirmed by the dispatching centre. The yellow “Triphony” symbol is on whenever triphony is in progress. The blue indicator is off but designates the signal sending place during the callfor people with defective hearing equipped with hearing aids.Audio Unit - Lift Shaft / Cabin Roof Press the ALARM button to call the dispatching centre. Press the TRIPHONY button to call the other audio units in one and the samelift. Repress the TRIPHONY button to terminate such connection. The ALARM button is shining at the relax state. The TRIPHONY button is shining while triphony is in progress. The yellow LED is shining while a connection with the dispatching centre isbeing established. The green LED shines to indicate that the connection has been establishedand confirmed by the dispatching centre.