Radio Shack CID 2905 Caller ID Box User Manual


 
5
Important Information
FCC INFORMATION
We have designed your CID to conform to
federal regulations, and you can connect it
to most telephone lines. However, each
CID (and each device, such as a tele-
phone or answering machine) that you
connect to the telephone line draws power
from the line. We refer to this power draw
as the device’s
ringer equivalence num-
ber,
or REN. The REN is on the bottom of
your CID.
If you use more than one phone or other
device on the line, add up all the RENs. If
the total is more than five (three in rural
areas), your phones might not ring. If ring-
er operation is impaired, remove a device
from the line.
Your CID complies with Part 68 of the
FCC Rules
. You must, upon request, pro-
vide the FCC registration number and the
REN to your phone company. Both num-
bers are on the bottom of the CID.
You must not connect your CID to:
coin-operated systems
party-line systems