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Conditions
•
This feature only works if the called extension has activated Call Waiting. If it is activated, the calling
extension will hear a ringback tone.
•
Call Waiting tone can be selected (Tone 1 or Tone 2) through personal programming (Call Waiting Tone
Type Selection).
•
When the headset mode is on, you can choose whether the call waiting tone is heard from the speaker
phone of the telephone or the earpiece of the headset. However, this setting is only available for terminals
that support call waiting tone path switching (KX-DT521, KX-DT543, KX-DT546, KX-NT553, and
KX-NT556).
PC Programming Manual References
9.16 PBX Configuration—[1-1] Configuration—Slot—V-IPEXT128—Port Property—Option—C.Waiting with
Headset
9.28 PBX Configuration—[1-1] Configuration—Slot—Legacy-GW1/Legacy-GW2
10.3 PBX Configuration—[2-3] System—Timers & Counters—Miscellaneous—Caller ID—Visual Caller ID
Display
10.6.3 PBX Configuration—[2-6-3] System—Numbering Plan—B/NA DND Call Feature
→ BSS / OHCA / Whisper OHCA / DND Override
→ BSS / OHCA / Whisper OHCA / DND Override-2
8.2.1 Users—User's Device Settings—Device Settings—Option 4—Call Waiting Tone Type
Operating Manual References
1.9.3 Receiving Call Waiting (Call Waiting/Off-hook Call Announcement [OHCA]/Whisper OHCA)
3.1.2 Settings on the Programming Mode
2.10.4.3 Off-hook Call Announcement (OHCA)
Description
An extension user can talk with a busy extension through the built-in speaker and microphone of the called
party's PT. If the existing call is using a handset, a second conversation is made using the speakerphone
and microphone so that the called extension can talk to both parties.
Conditions
•
COS programming determines which extensions can use this feature.
•
This feature is available when the called extension uses one of the following telephones:
–
KX-DT333, KX-DT343, KX-DT346, KX-DT521, KX-DT543, KX-DT546
These telephones can be connected only through a legacy gateway. They cannot be connected directly to
a KX-NSX Series PBX. (→ 5.3.1 Stacking Connection)
•
The OHCA feature cannot be used in the following cases:
a.
COS or called extension's telephone type is not available for this feature.
b.
The called extension (DPT) is in the Digital XDP connection.
The Call Waiting tone is sent to the called extension. (→ 2.10.4.2 Call Waiting Tone)
When the Called Extension is IP-PT, the device will enter BSS Mode without starting OHCA.
•
While an extension is receiving OHCA, if the extension user places the current trunk call on hold or
transfers the current intercom call or trunk call, OHCA will become disabled and the calling extension will
start to hear a ringback tone.
•
While an extension is receiving OHCA, if the extension user places the current intercom call on hold, the
called extension can talk to the calling extension through the handset.
2.10.4 Second Call Notification to Busy Extension
Feature Manual
135
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