Radio Shack ET-687 owner manual Read this Before Installation, FCC Statement

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43-687.fm Page 4 Friday, August 13, 1999 11:12 AM

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.

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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

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Contents ET-687 Features Fm Page 3 Friday, August 13, 1999 1112 AM Read this Before Installation FCC StatementContents Connecting to the Phone Lines InstallationMounting the Phone On a Desk Top On a Wall Plate Directly on a Wall Fm Page 10 Friday, August 13, 1999 1112 AM Connecting and Charging the Battery Pack Charge Setting the Dialing Mode Setting the RINGERS’ VolumeUsing the Handset Setting the Handset VolumeOperation Making a CallUsing Speakerphone Adjusting the Speakerphone VolumeUsing Mute Answering a CallSwitching Between the Handset and Speakerphone Using RedialPutting a Call on Hold Using Both Handset Speakerphone Making a Conference CallThree-Way Conference Call Four-Way ConferencingUsing Flash Using the ET-687 with Extension PhonesUsing PAGE/INTERCOM Memory Dialing Storing a Number in MemoryChain-Dialing Service Numbers Testing Stored Emergency NumbersEntering a Pause Dialing a Memory NumberUsing a Headset Troubleshooting Fm Page 24 Friday, August 13, 1999 1112 AM Care and Maintenance Replacing Battery Pack FCC Wants YOU to Know LightningRadioShack