Table of Contents
Advertisement
2.14.2 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 customised 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 trunks leaves the conference, the call can become a trunk-to-
trunk call, if enabled through system programming.
–
When a trunk-to-trunk call is established, the call will end when the Trunk-to-Trunk Call Duration timer
has elapsed (→ 2.11.8 Trunk Call Limitation). The timer applied is that of the trunk group containing the
trunk being used for the call immediately preceding the conference. The timer cannot be extended.
–
If both trunks are analogue trunks, the end of the trunk-to-trunk call may not be detected. For this
reason, if analogue trunks are used, it is not recommended to enable the establishment of trunk-to-
trunk calls after a conference call through system programming.
PC Programming Manual References
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—Transfer to
CO
10.9 PBX Configuration—[2-9] System—System Options—Option 2—CO - CO Call Limitation—After
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
10.9 PBX Configuration—[2-9] System—System Options—Option 8—Conference Group—Maximum
Number of Speakers During a Conference Group Call
8.3.1 Users—User's Flexible Button—Wired Extension—Type
8.3.2 Users—User's Flexible Button—Portable Station—Type
158
Feature Manual
Advertisement
Table of Contents
