1.8.4 Second Call Notification to Busy Extension
1.8.4.1 Second Call Notification to Busy Extension—SUMMARY
Description
When attempting to call a busy extension (ringing or having a conversation), an extension user can send a
Call Waiting indication to the busy extension (Call Waiting). The notification receiving method depends on the
called extension’s personal setting and the telephone type:
Notification Receiving Method
Description & Reference
Call Waiting Tone Sends the Call Waiting tone to the busy extension.
® 1.8.4.2 Call Waiting Tone
Off-hook Call Announcement
(OHCA)
Talk with the busy extension using the built-in speaker and
microphone of the called extension while the existing call is
made using the handset.
® 1.8.4.3 Off-hook Call Announcement (OHCA)
Whisper OHCA Send a spoken message to a busy extension that will be
heard directly by only the called extension user, through the
handset, without interrupting the ongoing conversation.
® 1.8.4.4 Whisper OHCA
Conditions
• Each extension user can choose to receive Call Waiting tone, OHCA, Whisper OHCA, or none of these.
• OHCA and Whisper OHCA are enabled or disabled by the COS of the calling extension.
• OHCA and Whisper OHCA do not work for some telephone types. In such cases, the Call Waiting tone will
be sent to the called extension.
Calling
Extension’s
OHCA COS
Mode
Called Extension’s Call Waiting Mode
OFF ON
Cancel Call Waiting Tone OHCA Whisper OHCA
Disable Call Waiting
disabled
Call Waiting tone Call Waiting tone Call Waiting tone
Enable Call Waiting
disabled
Call Waiting tone OHCA
(or Call Waiting
tone)
Whisper OHCA (or
Call Waiting tone)
• The notification receiving methods (Call Waiting tone, OHCA, and Whisper OHCA) are available only when
the called extension is having a conversation with another party. If the called party is not yet connected
with the other party (e.g., still ringing, on hold, etc.), the calling extension will hear a ringback tone and will
be kept waiting until the called extension becomes available to receive the call waiting notification.
• If none of these notification receiving methods (Call Waiting tone, OHCA, or Whisper OHCA) are set at the
called party’s extension, the caller will hear a reorder tone.
122 Feature Guide
1.8.4 Second Call Notification to Busy Extension
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