1.3 Telephone Features
72 Operating Manual

1.3.32 Conference, Unattended

To leave a conference call and establish an unattended conference call

Programming Manual References
[PT Programming]
[104] SLT Hold Mode
[105] Conference Tone
[PC Programming]
9.1.11 Detail [1-10]—Single Line Telephone—Hold Mode, Conference—Conference
To n e
Feature Manual References
1.1.15 Call Hold
1.1.33 Conference
Operating Manual References
1.3.32 Conference, Unattended
1.3.40 Executive Busy Override—Extension
1.3.41 Executive Busy Override—Outside (CO) Line
3.1.3 Flexible Button Assignment
Create or edit a Conference button.
The proprietary telephone (PT) user who originated a conference with 2 outside
parties can leave the conference and allow the other parties to continue the
conversation. Certain extensions may be restricted from executing this feature
through system programming. No SLT
PT

When you are talking with 2 outside parties

Press CONF.