The Panasonic KX-MB771 (KXMB771) Laser fax machine is just the same as an analogue telephone like you would have at home. This means that it will connect to a standard BT telephone line or any other analogue line you may have.
Also if you want to connect the Panasonic KX-MB771 fax into a telephone system it will connect as long as it is to an analogue extension. It will not work on an extension designed for a specific type of system telephone.
Panasonic Fax Consumable
As the Panasonic KX-MB771 is a laser fax machine it needs Panasonic toner and Drum as a consumable:
Panasonic KX-FAT92 Toner – Approx 2000 pages
Panasonic KX-FAD93 Drum Unit – Approx 6000 pages
Please contact our customer service team if you require any further help or advice.