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Off-Hook Call Announcement (OHCA), Whisper
Description
This is a variation of the OHCA feature.
The difference is, OHCA provides two-way communication, but Whisper OHCA provides
one-way (from the calling extension to the called extension) communication.
Conditions
• Call Waiting
This feature is only effective if the called extension has set Call Waiting feature.
By default, this feature works only when the called extension user is using KX-T7500 series
PT. If the other extension is not a KX-T7500 series PT, Call Waiting works instead of this
feature.
• Non-KX-T7500 cases
If the Whisper OHCA sender does not use a KX-T7500 series PT, it will work as OHCA.
If the receiver does not use a KX-T7500 series PT, it may not work properly (e.g., the
OHCA may be heard by unintended parties.)
• Enabling Feature for Any PT
It is possible to enable the Whisper OHCA by any PT by System Programming. But it may
not work properly (e.g., the OHCA may be heard unintended parties.)
• Conference Trunk
An idle conference trunk is required to perform this feature.
• BSS / OHCA / Whisper OHCA
If an extension user dials "2" while hearing a busy tone, BSS or OHCA or Whisper OHCA
will be activated at the called extension. This is determined by the following conditions.
Calling extension
COS-OHCA
assignment
Disable
Enable
OHCA (Off-Hook Call Announcement) is activated when the called extension is KX-T7130, KX-T7235 or KX-T7536. In
*1
some countries, KX-T7235 is not available to receive an OHCA call.
Whisper OHCA is activated when both calling and called extensions are using one of the KX-T7500 series PT.
*2
• BSS, OHCA and Whisper OHCA do not function at a DN type PT.
Features Guide
OFF
0
———
BSS
———
BSS
Called extension
Call Waiting setting
ON
1
2
BSS
OHCA
*1
1.6 Originating Features
3
BSS
W-OHCA
BSS
OHCA BSS
*2
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