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Page 202 of 220 Appendix B: Regulatory information
Ringer Equivalence Number
Repair facility
Note for hearing aid users
553-3601-200 Standard 7.00 November 1998
The Ringer Equivalence Number (REN) is used to determine the quantity of
devices that may be connected to the telephone line. The REN assigned to each
terminal device denotes the percentage of the total load to be connected to a
telephone line used by the device to prevent overloading. The REN is
increased each time a terminal device is connected to the telephone line. In
most areas, the sum of the RENs should not exceed 5. The REN of the system
is 1.5 B.
Contact
Use of the portable telephone may produce an audible tone within a hearing
aid. A headset recommended for use with hearing aids can prevent the
occurrence of the audible tone. Contact your distributor to order a headset.
Northern Telecom
Nashville Repair and Distribution Center
640 Massman Drive
Nashville, TN 37210
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