Important Safety Instructions When using your telephone equipment, basic owner’s manual. If you are not sure of the safety precautions should always be followed voltage in your home, consult your dealer to reduce the risk of fire, electric shock and or local power company.
Important Safety Instructions by the operating instructions. Improper adjust- 17. Never touch un-insulated telephone wires ment may require extensive work by a quali- or terminals unless the telephone line has fied technician to restore the telephone to been disconnected at the network interface. normal operation.
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Features Top of Base/Handset Back 1. Visual Ringer 7. Call 8. Scroll Up 2. Charging Contacts 9. Scroll Down 3. Base Antenna 10. Delete 4. Power LED (RED) 5. In Use/Charge LED (GREEN/RED) 11. LCD 6. Page...
Getting Started CHOOSING A LOCATION 1. This phone requires a modular phone jack (RJ11C) and a standard 120V AC wall outlet. 2. Plug the AC Adapter directly USE ONLY WITH CLASS TWO POWER SOURCE into outlet. 9VDC PULSE/TONE BOOST 500mA ON/OFF 3.
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Getting Started 6. Set the TONE/PULSE switch located 3. Insert the plug of the AC adapter into the on the back of the base to correct jack marked DC 9V 400mA located on dialing mode. Please check with your the back of the telephone base. local Phone Company if uncertain of 4.
Getting Started BATTERY INSTALLATION Handset Battery Charging 1. Place the handset in the base. The The C420 uses a 3.6Volt 600mAHr NiMH CHARGE LED on the base will rechargeable 3 cell (AAA Type) battery that is light RED. included with your unit. 2.
To enter Setup mode press and hold the Ordering a Headset: In the event you CALL button for three (3) seconds. wish to purchase a headset for your Clarity 420, please contact Plantronics at Setting Language 1-800-544-4660 for location near you.
Feature Set-up 2. Press the UP ( ) or DOWN ( Setting the Area Code ▲ ▼ to change the mode. 1. Press CALL to enter the Area Code selection mode. The left most digit in 3. Press CALL to confirm the selection. the code sequence will flash.
) to ▲ ▼ the CLARITY POWER button is pressed, the change the level. Clarity 420 will provide up to 30 dB of gain. 3. Press CALL to select level desired. 4. Press UP ( ) or DOWN ( ) to Handset Ringer ▲...
OFF, the visual ringer will flash to indi- of amplification. If the phone hangs up, the cate there is an incoming call. Clarity Power will reset to OFF. During a call, the BOOST Clarity Power button can toggle the Clarity Power function on or off accord- Placing a Call ing to the user’s needs.
Feature Set-up Refer to BOOST Clarity Power and Volume in the handset is disabled. Pressing the Control for information on adjusting volume MUTE button again will disengage the controls (Page 14). MUTE feature. Temporary Tone Redial/Pause If you have rotary (pulse) dial service, you...
The display also Channel Operation functions as call timer when the handset is off The Clarity 420 cordless telephone auto- hook or on a call. matically searches and selects the clearest of 40 channels when it is being used. If inter-...
Memory Storage Memory Storage Locations To Dial From Emergency Storage Location: The C420 has ten (10) indirect or two touch 1. Press the TALK button. memory locations on the telephone (0-9) that 2. Press the desired emergency button. can be programmed to dial frequently called 3.
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Caller ID Storage IMPORTANT: You must subscribe to Caller ID Stand By Service from your local telephone In the stand by mode the LCD will display company to utilize this feature. the following information: • Date/Time This telephone will automatically display •...
Caller ID Operations 2. Press DEL to select. The display briefly The REPEAT call icon will light if the C420 receives more than one call from the reads, “CID ERASED.” The next Caller ID entry appears automatically or the dis same number.
Care The C420 has been designed to give you unit with a soft damp cloth. Do not use years of dependable service with a minimum detergents and avoid excess moisture. of care. 3. The C420 is an electrical device. To ensure the utmost in performance, follow Avoid electric shock by keeping the these guidelines in caring for the unit: phone away from water (i.e.
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Troubleshooting Noise, Static, Interference or Other Calls Difficulty in Placing or Receiving Calls: Heard while Using the Handset: • Move closer to the base and try again. • Try changing channels. • If moving closer does not work, you • Make sure the base antenna is in an upright position.
Excessive RENs on a telephone equipment, for repair or warranty informa- line may result in the devices not ringing in tion, please contact Clarity, 1-800-552-3368. response to an incoming call. In most but If the equipment is causing harm to the tele-...
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Regulatory Compliance h) Connection to party line service is subject These limits are designed to provide reason- to state tariffs. Contact the state public utility able protection against harmful interference commission, public service commission or cor- in residential installation. poration commission for information. This equipment generates, uses and can i) If your home has specially wired alarm radiate radio frequency energy and, if not...
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Canadian maintenance facility designated by the supplier. Clarity, A Division of Plantronics, Inc. 4289 Bonny Oaks Drive, Suite 106 Any repairs or alterations made by the user Chattanooga, TN 37406 to this equipment, or equipment malfunc-...
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Other Legal Rights currents, or repair or maintenance attempted This warranty gives you specific legal rights by anyone other than Clarity or an autho- and you may also have other rights which rized service center, is not a defect covered vary from state to state.
Include the following information: In the United States 1. A proof-of-purchase indicating model number and date of purchase. Clarity Service Center 4289 Bonny Oaks Drive, Suite 106 2. Bill-to address. Chattanooga, Tennessee 37406 3. Ship-to address.