Radio Shack ET-2101 - Manual (Page 8)

8 Introduction
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 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 (three in
rural areas), your phone might not ring. If ringer operation is im-
paired, remove a device from the line.
FCC STATEMENT
This telephone complies with Part 68 of FCC Rules. You must,
upon request, provide the FCC registration number and the
REN to your phone company. These numbers are on the bot-
tom 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
43-2101.fm Page 8 Wednesday, February 23, 2000 9:12 AM