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18

CARE AND MAINTENANCE

Your RadioShack ET-548 25-Channel Cordless Headset Telephone is an example of
superior design and craftsmanship. The following suggestions will help you care for your
phone so you can enjoy it for years.

Keep the phone dry. If it gets wet, wipe it dry immediately. Liquids might
contain minerals that can corrode the electronic circuits.

Use and store the phone only in normal temperature environments. Tem-
perature extremes can shorten the life of electronic devices and distort or
melt plastic parts.

Handle the phone gently and carefully. Dropping it can damage circuit
boards and cases and can cause the phone to work improperly.

Keep the phone away from dust and dirt, which can cause premature wear
of parts.

Wipe the phone with a damp cloth occasionally to keep it looking new. Do
not use harsh chemicals, cleaning solvents, or strong detergents to clean
your phone.

Modifying or tampering with the phone’s internal components can cause a malfunction
and might invalidate its warranty and void your FCC authorization to operate it. If your
phone is not performing as it should, take it to your local RadioShack store for assis-
tance. If the trouble is harming the phone lines, the telephone company might ask you to
disconnect your phone until you have resolved the problem.

CLEANER

43-1048.fm  Page 18  Tuesday, August 17, 1999  12:45 PM

Summary of Contents for ET-548

Page 1: ...Cat No 43 1048 OWNER S MANUAL Please read before using this equipment ET 548 25 Channel Cordless Headset Telephone 43 1048 fm Page 1 Tuesday August 17 1999 12 45 PM ...

Page 2: ...ne when the remote keypad is on the cradle 10 Number Memory Dialing lets you store 10 numbers in memory for easy di aling Auto Scan automatically selects a clear channel when you pick up the phone You can also manually switch to another channel Redial lets you redial the last number dialed with the touch of a button Privacy prevents the person on the other end of the phone line from hearing you as...

Page 3: ...rd your phone s serial number here The number is on the bottom of the base Serial Number __________________ This symbol is intended to alert you to the presence of uninsulated dangerous voltage within the product s enclosure that might be of sufficient magnitude to constitute a risk of electric shock Do not open the product s case This symbol is intended to inform you that important operating and ...

Page 4: ...line add up all the RENs If the total is more than five your phones might not ring In rural areas a to tal REN of three might impair ringer oper ation If ringer operation is impaired remove a device from the line FCC STATEMENT This telephone complies with Part 68 of FCC Rules You must upon request pro vide the FCC Registration Number and the REN to your phone company These numbers are shown on the...

Page 5: ...ng Channels 12 Setting the Volume 12 Using Redial 12 Using Privacy 13 Using Flash 13 Using Tone Services on a Pulse Line 13 Memory Dialing 14 Storing a Number in Memory 14 Entering a Pause in a Memory Number 15 Dialing a Stored Number 15 Chain Dialing Service Numbers 15 Testing Stored Emergency Numbers 15 Troubleshooting 16 Care and Maintenance 18 Replacing the Battery Pack 19 The FCC Wants You to...

Page 6: ...or have the telephone company update it for you Notes RadioShack stores sell jacks and adapters to convert older wiring meth ods to modular wiring The USOC number of the jack to be installed is RJ11C Caution The supplied adapter is a Class 2 120V AC 12V DC adapter that delivers at least 200 milliamps with its center tip set to positive Its plug correctly fits the phone s DC 12V jack Using an adapt...

Page 7: ...ote keypad You must connect and then charge the battery pack for at least 15 hours before you use it the first time 1 Use a Phillips screwdriver to remove the screw that secures the battery compartment cover then remove the cover 2 Slide the battery pack s connector onto the connector pins inside the battery compartment 3 Replace the cover and secure it with the screw 4 To charge the battery pack ...

Page 8: ...ery pack loses its ability to fully recharge If battery power is low POWER is set to ON and the headset is not in use the TALK LOW BATT indicator slowly flashes If battery power is too low the indicator does not light Illustration If the IN USE CHARGE indicator does not light when you place the re mote keypad on the base be sure the battery pack and AC adapter are cor rectly and securely connected...

Page 9: ...f your head If the headset is loose remove it and gently push the headset band inward slightly to tighten it If the headset is tight gently pull the headset band out to loosen it 2 Hold the headset in place and turn the microphone boom until it is about 2 inches from your mouth When you are not using the headset place it on the headset holder Illustration Illustration Illustration Illustration 43 ...

Page 10: ... keypad from the base Then press TALK HANG UP and listen for a dial tone 4 Press any number other than 0 If the dial tone stops you have touch tone service Leave TONE PULSE set to TONE If the dial tone continues you have pulse service Set TONE PULSE to PULSE USING THE BELT CLIP Use the belt clip to hang the remote key pad on your belt or waistband for hands free carrying Illustration Illustration ...

Page 11: ...attery power set POWER to OFF when the remote key pad is away from the base When you hear another phone on the same line ring set POWER to ON and press TALK HANG UP to answer the call When you press a button a single tone indicates that the phone accepts the command Three tones indicate that you pressed a button in error you are out of range or there is too much interference If there is severe int...

Page 12: ...r phone lines or are in an es pecially noisy area like a kitchen or workshop Simply set VOLUME to the de sired listening level USING REDIAL To quickly redial the last number dialed press TALK HANG UP then REDIAL PAUSE Notes The redial memory holds up to 80 dig its in the tone mode and 79 digits in the pulse mode so you can redial long distance as well as local num bers The redial memory can also s...

Page 13: ...again to alternate between the two calls Notes The redial memory does not store the FLASH entry or the digits you press after FLASH If you do not have any special phone services pressing FLASH might dis connect your current call USING TONE SERVICES ON A PULSE LINE Some special phone services such as bank by phone require tone signals If you have pulse service you can still use these special tone s...

Page 14: ...ny button on the keypad within about 10 sec onds a buzz sounds and the phone exits the number storing process Start again from Step 1 2 Dial the number you want to store 3 Press MEMORY again 4 Press the memory location number 0 9 where you want to store the number A long beep sounds and the phone number is stored in memory 5 Pull out the memory index card at the bottom of the base and write the st...

Page 15: ...ing a Stored Number Press TALK HANG UP and when you hear a dial tone press MEMORY then the mem ory location number The phone dials the stored number Chain Dialing Service Numbers Note If you use pulse dialing to dial the service be sure you have stored a tone entry TONE in another memory loca tion When you hear a dial tone press MEMO RY and the memory location number for the service s main number ...

Page 16: ...omputers radio controlled toys wireless microphones wireless alarm systems wireless intercoms and room monitors fluorescent lights and electrical appliances Turn off the interfering device Hang up and redial the number The range decreases Fully extend the base s antenna and raise it to a vertical position Ensure the antenna is not touching a metal surface Recharge the remote keypad battery pack Th...

Page 17: ...oser to the base Fully extend the base s antenna and raise it to a vertical position Ensure the phone s modular cord and the AC adapter are correctly and securely connected Recharge the remote keypad s battery pack If the bat tery power is too low the TALK LOW BATT indicator does not light Reset the security access protection code by placing the remote keypad in the cradle with POWER set to ON dis...

Page 18: ...n damage circuit boards and cases and can cause the phone to work improperly Keep the phone away from dust and dirt which can cause premature wear of parts Wipe the phone with a damp cloth occasionally to keep it looking new Do not use harsh chemicals cleaning solvents or strong detergents to clean your phone Modifying or tampering with the phone s internal components can cause a malfunction and m...

Page 19: ...ery Pack on Page 7 1 Use a Phillips screwdriver to remove the screw on the battery compartment cover on the remote keypad then re move the cover Illustration 2 Gently pull on the battery connector to disconnect it then remove the bat tery pack 3 Slide the battery pack s connector onto the connector pins inside the battery compartment and put the bat tery pack into the compartment 4 Replace the cov...

Page 20: ...pany can temporarily discon tinue your service If this happens the phone company attempts to notify you in advance If advance notice is not practi cal the phone company notifies you as soon as possible and advises you of your right to file a complaint with the FCC Also the phone company can make changes to its lines equipment opera tions or procedures that could affect the operation of this teleph...

Page 21: ...tection meets or exceeds FCC requirements However lightning striking the telephone or power lines can damage your telephone Lightning damage is not common Never theless if you live in an area that has se vere electrical storms we suggest that you unplug your phone during storms to reduce the possibility of damage 43 1048 fm Page 21 Tuesday August 17 1999 12 45 PM ...

Page 22: ...22 NOTES 43 1048 fm Page 22 Tuesday August 17 1999 12 45 PM ...

Page 23: ...23 43 1048 fm Page 23 Tuesday August 17 1999 12 45 PM ...

Page 24: ...dioShack is not responsible or liable for indirect special or consequential damages arising out of or in connection with the use or performance of the prod uct or other damages with respect to loss of property loss of revenue or profit or costs of removal installation or reinstallation EXCEPT AS PROVIDED HEREIN RadioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES ARE LIMITED IN DURATI...

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