Panasonic KX-TD500 - Conference, Unattended

Station Features and Operation (PT/SLT)
User Manual 231
4.3.23 Conference, Unattended
When you are in a conference with two outside parties, you can leave the three-party
conference allowing the other two parties to continue their conversation.
To establish an Unattended Conference
To return to the conference call
To answer Hold Recall (To return to the conference on the line)
PT
Press CONF to leave the conference.
During a conversation with two outside parties;
CONF
A CO-to-CO line call between the other two parties is established.
PT
Press CO or DN flashing green moderately.
(CO) (DN)
or
PT
Lift the handset or
press SP-PHONE.
Press CO or DN button which
is flashing rapidly.
While hearing Hold Recall;
or
(CO)
or
(DN)