| 1. | Radio Shack Telephone ET-238 User Guide READ THIS FIRST We have designed your 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 your phone 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 or three in rural areas your phones might not rin |
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