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READ THIS BEFORE
INSTALLATION
Each device that you connect to the
phone line draws power from the phone
line. We refer to this power draw as the
device’s
ringer equivalence number
, or
REN. The REN for your ET-687 is on the
bottom of the base.
If you are using more than one phone or
other device on the line, add up all the
RENs. If the total is more than five, your
phones might not ring. In rural areas, a
total REN of three might impair ringer op-
eration. If ringer operation is impaired,
remove a device from the line.
FCC STATEMENT
This telephone complies with Part 68 of
FCC Rules
. Upon request, you must pro-
vide the FCC registration number and
the REN to your phone company. These
numbers are on the bottom of the base.
Note:
You must not connect your phone
to any of the following:
• coin-operated systems
• party-line systems
• most electronic key phone systems
43-687.fm Page 4 Friday, August 13, 1999 11:12 AM