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Installing a handset lifter on a  phone for use with a wireless headset.

These instruction are intended to supplement the instructions that are included with the HL10 lifter.  The lifter is needed to answer your phone remotely using the wireless headset remote answer button.

M3904 Handset Lifter
  1. Note the tabs at the bottom of the base
    • These tabs hold the base to the phone and can be damaged by rough handling
       

    screenshot illustrating above step
     

  2. Depress height button on m3904 phone and pull base gently away from body
    screenshot illustrating above step

     

  3. Separate the base from the phone to expose the jacks
    screenshot illustrating above step
     
  4. Plug the one end of the telephone interface cable into the handset port (the bottom port). DO NOT plug it into the headset port (the middle port). You can install the cable into the channel in the base of the phone but it will limit where you can put the headset base.
    screenshot illustrating above step
     
  5. Install the telephone base by inserting the tabs on the phone into the slots on the base and push gently but firmly.
    screenshot illustrating above step
     
  6. Depress the height button to allow the ridged piece on the base to slide under the button
    • Release button to engage

    screenshot illustrating above step
     

  7. Remove only the two white strips on the back of the lifter
    screenshot illustrating above step
  8. Install the M3904 extender arm onto the handset lifter.
    screenshot illustrating above step
  9. Image of installed extension arm.
    screenshot illustrating above step
     
  10. Position the lifter on the phone such that the bar is lined up with the bottom of the cradle
    • This positioning is very important.
    • Be careful not to mount the lifter past the edge of the handset cradle so that it will not hang up nor too far away from the cradle that it gets stuck in the upright position.

    screenshot illustrating above step
     

  11. Push the rubber stops against the side of the handset
    screenshot illustrating above step
     
  12. Connect the curly cord from the handset into the jack on the lifter cord
    screenshot illustrating above step
     
  13. Connect the lifter cord into the base 
    screenshot illustrating above step
     
  14. To check for smooth operation of the handset lifter press the silver button on the headset. 
    • The handset will be lifted out of the cradle and you will hear dial tone at the headset.
    • Press the silver button again and the handset will lover into the cradle ending the call.

    screenshot illustrating above step

Vista M22 Universal Modular Amplifier From Plantronics

The Vista M22 Universal adapts your telephone to a Plantronics headset and provides control of the sound through your headset.  The Vista M22 Amplifier has built-in sound conditioning and protection.

The Vista M22 Amplifier is not designed to work with telephones that have the dial pad in the handset or with cordless telephones.

Vista M22 Universal Modular Amplifier from Plantronics

Last Updated: May 2, 2018