A:AnswerHi David! The product receives telephone signal through a landline cable. The base unit of the telephone communicates with the cordless handsets using DECT technology. -G
A:AnswerHi! A 3-way conference call can be performed (including 1 outside party and 2 extension phones), you can review the information on how to establish a conference call on page 19 of the manual, at the following link https://help.panasonic.ca/viewing/ALL/KX-TGE632/OI/TGE632_PNQX8639ZA/TGE632_PNQX8639ZA.pdf#page=19 -G
A:AnswerOur experience has been that they work well within the tange of our interior rooms with no breakups. Have not really tried it outside the confines of the house but our previous ser (also Panasonic) did work outside within 40 feet or so from the house.
A:AnswerHello, Kathy! Please check the following link for compatible models for the additional handset: https://eng-ca.faq.panasonic.com/app/answers/detail/a_id/57170/kw/handset%20guide
A:AnswerHello. The phone system is compatible with the Caller ID service, you will need an active Caller ID subscription from the telephone service provider to use the features. -G
A:AnswerHello! The range of the handsets is 33 feet from the base unit. The range will also be influenced by the environment in which the phone system is placed, and if there are any electronics around that would weaken the signal (such as microwave ovens, Wi-Fi routers, radios). -G