Panasonic KX-NS1000 Feature Manual page 80

4.1.18 Conference
Conditions
•
When an extension is establishing a conference call the original party is put on hold.
•
CONF (Conference) Button
For a PT/PS which does not have the CONF button, a flexible button can be customized as the Conference
button.
•
Unattended Conference Call Duration
The length of time that a conference call can remain unattended is restricted by the following timers:
–
Callback Start Timer
–
Warning Tone Start Timer
–
Disconnect Timer
These timers behave and operate according to the following chain of events:
1.
When the unattended conference is established, the Callback Start Timer will begin.
2.
When the Callback Start timer expires, the Unattended Conference originator's extension will start to
receive a callback ringing from the PBX and the Warning Tone Start Timer begins.
3.
When the Warning Tone Start Timer expires, the remaining parties of the conference will start to hear
a warning tone, the callback ringing will continue to be heard at the Unattended Conference
originator's extension, and the Disconnect Timer begins.
4.
When the disconnect Timer expires, the conference is disconnected.
If the Unattended Conference originator returns to the conference before the line is disconnected, all timers
are cleared.
•
If the originator of a conference with two CO lines leaves the conference, the call can become a CO-to-CO
line call, if enabled through system programming.
–
When a CO-to-CO line call is established, the call will end when the CO-to-CO Line Call Duration timer
has elapsed (® 4.1.17 CO Line Call Limitation). The timer applied is that of the trunk group containing
the CO line being used for the call immediately preceding the conference. The timer cannot be
extended.
–
If both CO lines are analog CO lines, the end of the CO-to-CO line call may not be detected. For this
reason, if analog CO lines are used, it is not recommended to enable the establishment of CO-to-CO
line calls after a conference call through system programming.
•
When a KX-UT series SIP phone is used to originate a conference and one of the other parties leaves the
conference, the KX-UT series SIP phone user will still be able to talk to the remaining party but will not be
able to use the standard Hold feature.
•
DSP Resource Usage
A conference call requires a certain number of DSP resources. If all DSP resources are in use, this
operation cannot be performed. To ensure a minimum level of performance, DSP resources can be
reserved for conference calls. (® 5.1.18 DSP Resource Usage)
PC Programming Manual References
9.33 PBX Configuration—[1-5] Configuration—DSP Resource
10.3 PBX Configuration—[2-3] System—Timers & Counters—DISA / Door / Reminder / U. Conf
→ Unattended Conference—Recall Start Timer
→ Unattended Conference—Warning Tone Start Timer
→ Unattended Conference—Disconnect Timer
10.7.1 PBX Configuration—[2-7-1] System—Class of Service—COS Settings—CO & SMDR—
CO
10.9 PBX Configuration—[2-9] System—System Options—Option 2—
Conference
10.9 PBX Configuration—[2-9] System—System Options—Option 3
→ Confirmation Tone—Tone 4-1 : Start Conference
→ Confirmation Tone—Tone 4-2 : Finish Conference
→ Echo Cancel—Conference
80 Feature Manual
Transfer to
CO - CO Call Limitation—After
Document Version 2016-03