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installation instructions for details. The REN is
used to determine the number of devices that may
be connected to a telephone line. Excessive RENs
on a telephone line may result in the devices not
ringing in response to an incoming call. In most
but not all areas, the sum of RENs should not
exceed five (5.0). To be certain of the number of
devices that may be connected to a line, as
determined by the total RENs, contact the local
telephone company. For products approved after
July 23, 2001, the REN for this product is part of
the product identifier that has the format
US:AAAEQ##TXXXX. The digits represented by
## are the REN without a decimal point (e.g., 03
is a REN of 0.3). For earlier products, the REN is
separately shown on the label.
If this product, the CA100/200 Call Alert causes
harm to the telephone network, the telephone
company will notify you in advance that
temporary discontinuance of service may be
required. But if advance notice isn’t practical, the