Merlin 3070 Service And Maintenance Manual page 232

Handsets for the Hearing Impaired and
All 3162 attendant consoles come with a handset that is hearing-aid com-
patible. Two other types of handsets are also available.
The R6 impaired-hearing handset (PEC 31753) has an extra amplifier to pro-
vide greater volume in the earpiece. A thumbwheel volume control on the
handset allows the volume to be turned up or down, as needed.
The R8 push-to-listen handset (PEC 31754) is for use in noisy locations. Like
the impaired-hearing handset, the push-to-listen handset has an extra amplifier
and a thumbwheel volume control. It also has a push-button on the handset
that increases the volume in the earpiece and mutes background noise
transmitted through the mouthpiece.
Noisy Locations