Panasonic KX-TD500 - Off-Hook Call Announcement (OHCA) -Whisper

Station Features and Operation (PT/SLT)
316 User Manual
4.3.50 Off-Hook Call Announcement (OHCA) —Whisper
This is a version of the OHCA feature. The difference is, OHCA provides two-way
communication between two extensions but this feature provides one-way communication.
When this feature is activated, the called party can hear caller's voice through the handset but
the caller cannot hear the called party's voice.
By default, this feature is available only when both calling and called extensions are using KX-
T7400 series PTs.
Setting
Canceling
7420 / 7425 / 7433 / 7436
Lift the handset or press
SP-PHONE.
Hang up or press
SP-PHONE.
Confirmation tone
and dial tone
Dial 7313.
7 3 1 3
<PT Display Example>
C.Waiting W-OHCA
7420 / 7425 / 7433 / 7436
Lift the handset or press
SP-PHONE.
Hang up or press
SP-PHONE.
Confirmation tone
and dial tone
Dial 7310.
37 1 0
<PT Display Example>
C.Waiting Off