10.7.1 PBX Configuration—[2-7-1]
System—Class of Service—COS Settings—Assistant—
Transfer to busy
Extension w/o BSS Operation
10.9 PBX Configuration
—[2-9] System—System Options—Option 4—
DSS Key—Automatic Transfer for
Extension Call
12.1.1
PBX Configuration—[4-1-1] Extension—Wired Extension—Extension Settings—Option 1—
Transfer
Recall Destination
12.2.1
PBX Configuration—[4-2-1] Extension—Portable Station—Extension Settings—Option 1—
Transfer
Recall Destination
Feature Manual References
4.1.22 COS (Class of Service)
Operating Manual References
1.3.11 Call Transfer
1.3.51 PDN (Primary Directory Number)/SDN
(Secondary Directory Number) Extension
4.1.11 CALL WAITING FEATURES
Description
Used to inform a busy extension that another incoming call is waiting. The busy extension user can answer
the second call by disconnecting the current call or placing it on hold.
The following notification method can be assigned for each extension depending on the call waiting and the
telephone type:
a. Call Waiting Tone: Tone from the handset or built-in speaker
b. OHCA: Voice from the built-in speaker
c. Whisper OHCA: Voice from the handset
d. Off: No notification.
Call Type
Notification Method
DPT IP-PT Other Telephone
Intercom Call Call Waiting tone/OHCA/
Whisper OHCA/Off
Call Waiting tone/
Whisper OHCA/Off
Call Waiting tone/Off
CO Line Call
*1
Call Waiting tone/Off
*1
Including a doorphone call, call via an incoming call distribution group, and a CO line call transferred from another extension.
Call Waiting is also known as Busy Station Signaling
(BSS).
Conditions
• Automatic Call Waiting
Through system programming, it is possible to select whether a call waiting tone is automatically sent to
the extension when receiving CO line calls, doorphone calls, external sensor calls and hold-recall calls.
Through system programming, it is also possible to select whether extensions will receive Automatic Call
Waiting from intercom calls.
• Call Waiting for an extension in a UM group or in a VM group (DTMF/DPT) is not available.
• Data Line Security
Document Version 2016-03 Feature Manual 69
4.1.11 CALL WAITING FEATURES