3-56
DPT Features
C
3.2
DPT Features
Conference, Unattended
When you are in a conference with two outside parties, you can disconnect
from a three-party conference allowing the other two parties to continue their
conversation.
To establish an Unattended Conference
While having a conversation with two outside parties;
1. Press the CONF button to leave the conference.
• A CO-to-CO call between the other two parties is established.
To return to the conference
1. Press the CO button flashing green moderately.
To answer Hold Recall (To return to the conference on the line)
While hearing Hold Recall;
1. Lift the handset or press the SP-PHONE button, or press the CO
button whose indicator light is flashing green rapidly.
Conditions
• When an Unattended Conference is established, an alarm tone is sent to both outside parties
fifteen seconds before the assigned duration time limit (default: 10 min.). "Hold Recall" is
activated for the extension that leaves the conference fifty seconds before the time out. The
call is disconnected at the time out unless the extension returns to the conference.
• If you are off-hook during an Unattended Conference mode, the display flashes with "CO
02 & CO 03," that is an example, for five seconds at fifteen second intervals.
• Whether an extension is able to establish a "Conference, Unattended" depends on the
"Class of Service
*
" assignment.
Programming References
• System Programming — Installation Manual
[206] CO-to-CO Call Duration Time
[503] Call Transfer to CO Line
[601] Class of Service
Feature References
Conference
Hold Recall (
→
see Installation Manual)
*
Class of Service (COS) is used to define the features which are allowed for a group of extensions. Refer to the
Installation Manual.
1
CONF
1
CO
1
or
CO
TD816 TD1232
✔
✔
DPT (72**)
20
30
35
50
✔
✔
✔
✔
With
Compliments
Absolute
Phone
&
Data
