Plantronics Vista M22 User Guide - Page 7

SETTING UP THE VISTA M22 INSTALLING THE BATTERIES Install the two AA batteries in the Battery Compartment matching the + and - symbols inside the compartment. Install the Battery Cover by sliding the cover up into place. Note: You will hear three "beeps" through the headset when the batteries are low. ATTACHING THE VISTA M22 TO YOUR TELEPHONE AND HEADSET Unplug the handset from the telephone and plug the handset into the Handset Jack on the Vista M22. Connect the Short Telephone Cord to the handset jack on the telephone. Plug your headset (not supplied) into the Quick Disconnect™ cord from the Vista M22.