To Add Another Party On Hold To A Conference; To Talk To Two Parties Alternately In A Three-Party Conversation - Panasonic KX-NS700 User Manual

PT/PS
During a 3- to 7-party conference
Press CONF.
Press the flashing CO, ICD Group,
PDN, or SDN corresponding to
the party on hold.
PT/PS
During a conversation
Press TRANSFER.
SLT
During a conversation
Press Recall/hookswitch.
(CO)
OR
(ICD Group)
OR
(PDN)
OR
(SDN)
C.Tone
Press CONF. Talk with
multiple parties.