Nokia RoofTop R240 User Manual page 30

Repairs to certified equipment should be coordinated by a representative designated by the supplier. Any repairs or alterations
made by a user to this equipment, or equipment malfunctions, may give the telephone communications companu cause to
request the user to disconnect the equipment.
Notice: The Ringer Equivalent Number (REN) assigned to each terminal device provides an indication of the maximum number
of terminals allowed to be connected to a telephone interface. The termination on an interface may consist of any combination of
devices subject only to the requirement that the sum of the Ringer Equivalence Numbers of all the devices does not exeed 5.
REN: See the equipment for REN information.