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Introductory message and overview of the S12 Headset System.
Lists and labels parts of the headset and base unit.
Advises on safe use to prevent fire, shock, injury, and proper battery handling.
Instructions for installing batteries and connecting the amplifier to the phone.
Guide to adjusting the switch for optimal phone compatibility.
How to answer incoming calls using the headset.
Switching between handset/headset and using the mute feature.
Addresses issues like no dial tone, no caller audio, and headset hum.
Contact information, optional parts, and warranty/service details.











