Panasonic KX-TG643 Operating Instructions Manual page 41

■ To establish a conference call:
Base unit:
Press {CONF}.
L To leave the conference, press
{SP-PHONE}. Other parties
can continue the conversation.
L To put the outside call on hold,
press {HOLD}. To resume the
conference, press {CONF}.
For assistance, please visit http://www.panasonic.com/help
Intercom/Locator
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