User manual PLANTRONICS VISTAPLUS DM 15 ADAPTER

[. . . ] VistaPlus is compatible with most business telephones and includes standard adapter functions including headset/handset switch, microphone mute and receive volume adjustment. Firstly, it monitors and predicts the daily personal noise exposure, and adaptively limits the maximum volume to ensure the action levels specified by current and imminent EU legislation are not exceeded. Constantly on guard, it also identifies and eliminates sudden loud sounds. [. . . ] The LED indicator on the top of the VistaPlus will flash every two seconds when the batteries need replacing. Disconnect the AC adapter from the VistaPlus and unplug it from the mains supply when using batteries. Refer to Figure 3 Switches on the bottom of the unit The compatibility switch on the bottom of the adapter allows VistaPlus to operate with most business telephones. This switch is set to position A, but if you cannot hear a dial tone move the switch to one of the other positions (A-F). Once you have found the setting that works, it will not need to be changed unless you change your telephone. The speak volume is how loud or quiet your voice is heard by someone on the other end of the line. Put on your headset and tell a colleague you are making a test call to them. If they cannot hear you, move the `speak volume' slider on the bottom of the adapter until they can hear you. You may also need to decrease the speak volume if this is set too high. When you have set the speak volume, you should not need to change it, unless you change telephones. Refer to Figure 4 Top view of buttons and tone control VistaPlus has a volume control which you can use to adjust the volume of your caller's voice. Step the volume up and down by pushing the volume switch on the top of the adapter until it is set at a comfortable level. The adapter will maintain this volume regardless of the volume of the incoming call and so you should not need to adjust the receive volume very often. SoundGuard Digital protection ensures that the volumes do not exceed legally defined levels over the course of a working day and will protect you from sudden high volume noises which may occur. There are three settings; push the tone control button while you are making your test call and select the preferred setting. To use headset mode, press the headset button on the top of the adapter so that you can see the red square. [. . . ] Low receive volume Mute function switched on Check speak volume Check that you are wearing your headset correctly and that your work area is as quiet as possible. Caller cannot hear you clearly Reset the speak volume so that your voice can be heard clearly. Disconnect your VistaPlus adapter from the telephone and mains adapter and clean it with a soft, slightly damp cloth. [. . . ]