Polycom VVX 600 User Manual page 75

Accessibility Features on VVX Business Media Phones for Hearing-Impaired Users
Electronic hookswitch support
Headset Memory Mode
Hearing Aid Compatible (HAC) handsets
TTY support
If you use a headset that supports electronic hookswitch
(EHS), you can use the controls on your headset to answer
and end calls. In addition, you may be able to mute calls and
control volume from your headset (see
Hookswitch).
If you use a headset, you can set up your phone so that all
calls use your headset (see
All VVX handsets are Hearing Aid Compatible (HAC) and
have telecoils that magnetically couple to most forms of
wearable hearing aids per FCC section 508 (compliant to
ADA Section 508 Recommendations: Subpart B 1194.23).
VVX phones support commercial TTY devices such as
Ultratec Superprint. In addition, VVX phones provide acoustic
coupled TTY support.
Enable Electronic
Use Your Headset for All Calls).
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