Panasonic KX-TD500 User Manual page 79

Letting a third party join your call (Privacy Release)
You can let a third party join your current outside call.
PT
During a conversation
(CO)
Press lighted CO.
To leave
PT
On-hook.
To talk to one party by terminating the other
PT
OR
(CO)
Press CO, INTERCOM or PDN.
• This feature overrides "Data Line Security" (
Indication Tones (Data Line Security)") and "Executive Busy Override Deny"
( "2.7.9 Denying Other People the Possibility of Joining Your Conversation (Executive
Busy Override Deny)") .
Operation
Ask the third party to perform the step below.
Press flashing green
CO within 5 seconds.
INTERCOM
OR
(PDN)
(CO)
A three-party conference call
is now established.
"2.7.11 Protecting Your Line against
2.4 During a Conversation
C.Tone
(Optional)
Talk.
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