[. . . ] On line Indicator Port On Line indikator indgang Aansluitpunt voor on-line indicator OnLine-ilmaisinportti Prise du témoin de marche On line Indicator-Anschlussbuchse Presa dell'indicatore luminoso "On Line" Online-indikatorport Porta do Indicador On Line Puerto del indicador de `en línea' Online indikatoringång The HL2 telephone handset lifter system is a mechanical handset lifter designed for use with the A20 telephone headset amplifier and accessory deck Remove the parts of the HL2 from their packaging. place the Accessory Deck (13) of the A20 Amplifier into the Lifter Motor (2). [. . . ] Next, hold the Lifter Arm and either raise or lower it manually to fit under your handset while it is in its cradle. The arm needs to be underneath the handset in order to raise it and answer the phone. You will encounter some resistance to moving the Lifter Arm, however, you cannot damage the device by making this adjustment. In order to make sure that the Lifter Arm is set at the correct height for answering your telephone, press the Handset/Headset Selector (7) on the A20 base unit. Pressing this button then activates the Lifter Arm, which will move upwards, raising the telephone handset as it does so. As the handset is lifted, a dial tone will be heard in your headset receiver. If the lifter arm does not raise the handset far enough to activate the dial tone, simply adjust the rotation of the Lifter Arm using the Lifting Arm Height Dial (7) on the back of the HL2 Lifter Motor Assembly (see diagram D). By moving this dial further towards Hi, the Lifter Arm will lift the handset further from its cradle when activated. Repeat this process until the Lifter Arm is correctly positioned to raise your handset. Using the HL2 telephone handset lifter system To make a call, press the Handset/Headset Selector (7) on the A20 base unit. This will activate the Lifter Arm, which lifts the telephone handset from its cradle. Once you have finished your call, press the Handset/Headset Selector (7) on the A20 base unit again to replace the telephone handset on its cradle, ready for the next call. [. . . ] To ensure safe operation, install, adjust and operate the HL2 as indicated in these instructions. For service please contact your supplier or one of the Plantronics offices shown on the back of this user guide. [. . . ]