Panasonic KX-TD612NZ - Manual (Page 78)

Operation
78 User Manual
2.4.5 Talking to Two Parties Alternately (Call Splitting)
When talking to 1 party while the other party is on hold, you can swap the calls back and forth
(alternately).
DPT
Press HOLD. Press CO or INTERCOM.
OR
During a conversation with a held call
when either party is an outside party During a conversation with a held call
when both parties are an extension party
(CO)
INTERCOM
HOLD
SLT
Press Recall.
During a conversation
with a held call
(Recall)
ISDN Extn.
Press R key.
During a conversation
with a held call