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READ THIS BEFORE INSTALLATION
We have designed your ET-152 Headset Telephone to conform to
federal regulations and you can connect it to most telephone lines.
However, each device you connect to the phone line draws power
from it. This power draw is the device’s Ringer Equivalence Number,
or REN. The REN is shown on the bottom of the ET-152.
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 (or three in rural areas),
your phone(s) might not ring. If ringer operation is impaired, remove
one of the devices from the line.
FCC STATEMENT
Your ET-152 Headset Telephone complies with Part 68 of
FCC
Rules. You must, upon request, provide the FCC registration num-
ber and the REN to your telephone company. Both numbers are
marked on the bottom of the ET-152.
Note: You must not connect the headset telephone to:
• Coin-operated systems
• Party-line systems
• Most electronic key telephone systems
43-890.fm Page 5 Monday, August 16, 1999 2:01 PM