Panasonic KX-TD500 User Manual page 187

C
Conditions
• Class of Service
An Unattended Conference cannot be established unless the extension is allowed to
transfer a call to an outside party by COS programming.
• Call duration limit
The duration of an unattended conference is restricted by a system timer.
Hold Recall tone
Hold Recall tone is sent to the extension user who left the conference 50 seconds before the time-out.
Alarm tone
An alarm tone is sent to both outside parties three times at 5-second interval 15 seconds
before the time-out. The call is disconnected at the time-out unless the extension who
originated the Unattended Conference returns to the call.
• If your extension is engaged in a call when Unattended Conference Recall occurs, the
PT
display flashes "10101 & 20211" for example, for 5 seconds at 15 seconds intervals.
This is available when Call Waiting feature is enabled on your extension beforehand.
Programming References
• System Programming — Installation Manual, Section 4
4.2.3 System - Class of Service
4.2.4 System - System Timer
Feature References
Conference
Hold Recall (
Limited Call Duration (
* Class of Service (COS) is used to define the features which are allowed for a group of extensions.
Refer to "Class of Service (COS)" in the Features Guide.
4-72
Station Features and Operation
4.3 Station Features and Operation
— Transfer to CO
— Trunk Group Setting
— CO-to-CO Line Call Duration Time (1-64 min.)
see Features Guide)
see Features Guide)