900 MHz Cordless E with Caller ID N Featuring Clarity® Power™ Technology G L I Clarity 420 User Guide S H

E S P A CLARITY Ñ O C420 L

F F R R A A N N Ç Ç A A I I S S Table of Contents

Safety Instructions ...... 3 Temporary Tone ...... 16 Features ...... 5 Visual Ringers ...... 16 Getting Started ...... 8 Flash ...... 16 Choosing a Location ...... 8 Mute ...... 16 Installation ...... 8 Redial/Pause ...... 16 Battery Installation ...... 10 LCD Display Screen ...... 17 Handset Battery Charging ...... 10 Lighted Key Pad ...... 17 Low Battery ...... 10 Base Lights...... 17 Battery Life...... 10 Page/Handset Locator...... 17 Channel Operation...... 17 Headset Jack...... 11 Security Code ...... 17 Compatibility...... 11 Memory Storage ...... 18 Quick Reference Guide ...... 11 Memory Storage Locations ...... 18 Feature Set Up...... 12 Storing Numbers into Memory ...... 18 Handset...... 12 Dialing From Memory ...... 18 Set Up Mode ...... 12 Editing Numbers in Memory ...... 18 Clarity Power Technology ...... 14 Deleting Numbers from Memory. . . . . 18 Boost Clarity Power On/Off ...... 14 Caller ID Operations...... 19 Volume Control ...... 14 Viewing Call List...... 19 Handset Ringer ...... 14 Placing a Call from the List ...... 20 Telephone Base ...... 14 Deleting Entries ...... 20 Boost On/Off ...... 14 Call Waiting ...... 20 Pulse/Tone...... 15 Care...... 21 Ringer Volume ...... 15 Troubleshooting ...... 21 Ringer Style ...... 15 Regulatory Compliance...... 23 Telephone Operations ...... 16 Warranty and Service Placing a Call ...... 16 ...... 26 Answering a Call ...... 16 Important Safety Instructions E When using your telephone equipment, basic owner’s manual. If you are not sure of the N safety precautions should always be followed voltage in your home, consult your dealer G to reduce the risk of fire, electric shock and or local power company. L injury to persons including the following: 10. Do not place anything on the power I 1. Read and understand all instructions. cord. Install the telephone where no one S will step or trip on the cord. 2. Follow all warnings and instructions H marked on the telephone. 11. Do not overload wall outlets or exten- sion cords as this can increase the risk of 3. Do not use this telephone near a bathtub, fire or electrical shock. wash basin, kitchen sink or laundry tub, in a wet basement, near a swimming pool or any- 12. Never push any objects through the where else there is water. slots in the telephone. They can touch dangerous voltage points or short out parts 4. Avoid using a telephone (other than a that could result in a risk of fire or electrical cordless type) during a storm. There may shock. Never spill liquid of any kind on be a remote risk of electrical shock from the telephone. lightning. 13. To reduce the risk of electrical shock, 5. Do not use the telephone to report a gas do not take this phone apart. Opening or leak in the vicinity of the leak. removing covers may expose you to dan- 6. Unplug this telephone from the wall outlets gerous voltages or other risks. Incorrect reas- before cleaning. Do not use liquid cleaners sembly can cause electric shock when the or aerosol cleaners on the telephone. Use a appliance is subsequently used. damp cloth for cleaning. 14. Unplug this product from the wall out- 7. Place this telephone on a stable surface. let and refer servicing to the manufacturer Serious damage and/or injury may result if under the following conditions: the telephone falls. A. When the power supply cord or plug is 8. Do not cover the slots and openings on frayed or damaged. this telephone. This telephone should never B. If liquid has been spilled into the product. be placed near or over a radiator or heat register. This telephone should not be placed C. If the telephone has been exposed to in a built-in installation unless proper ventila- rain or water. tion is provided. D. If the telephone does not operate nor- 9. Operate this telephone using the electrical mally by following the operating instructions. voltage as stated on the base unit or in the Adjust only those controls that are covered

SAVE THESE INSTRUCTIONS 3 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 has fied technician to restore the telephone to been disconnected at the network interface. normal operation. 18. Use caution when installing or modifying E. If the telephone has been dropped or the telephone lines. case has been damaged. 19. Use only the power cord and batteries F. If the telephone exhibits a distinct change indicated in the manual. Do not dispose of in performance. batteries in a fire. They may explode. Check with local codes for possible special disposal 15. Never install telephone wiring during a instructions. lightning storm. 20. Plug the AC adaptor into the outlet that is 16. Never install telephone jacks in wet loca- nearest and most accessible to the telephone. tions unless the jack is specifically designed for wet locations.

Safety Instructions For Batteries

CAUTION: Risk of explosion if battery is 3. Do not open or mutilate the battery. replaced by an incorrect type. Dispose of Released electrolyte is corrosive and may used batteries according to the instructions. cause damage to the eyes and skin. It may be toxic if swallowed. 1. Use only the approved battery pack in the handset of your cordless phone. 4. Exercise care in handling batteries in order not to short the battery with conducting For Handset Unit: 3.6V 600mAHr materials such as rings, bracelets and keys. NiMH Rechargeable Battery The battery or conduction material may over- GP60AAAH3BMJZ heat and cause burns. GPI International Ltd 3SN-AAA60H-S-J 1 5. Charge the battery (ies) provided with or Sanik Battery Co., Ltd. identified for use with this product only in accordance with the instructions and limita- 2. Do not dispose of the battery in a fire as tions specified in this manual. it may explode. Check with local codes for possible special disposal instructions. 6. Observe proper polarity orientation between the battery pack and the battery charger. SAVE THESE INSTRUCTIONS 4 Features E Handset N G 1. /Visual Ringer/ 9. Flash Button (FLASH) L New Call Indicator 10. Mute Button (MUTE) I 2. 2.5 mm Headset Jack 11. Redial/Pause Button (RD/P) S 3. Key Pad 12. Temporary Tone Button (*) H 4. Handset Charging Contacts 13. Handset Ringer Off/On 5. Channel Button (CH) 14. BOOST Clarity Power 6. Talk Button (TALK) 15. Volume Control 7. Memory Button (MEM) 16. Up/Down 8. Emergency Memory Storage Button

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16 8 14 5 13 7 15 3 6 12 11 9 4 10 5 Features

Top of Base/Handset Back 1. Visual Ringer 7. Call 2. Charging Contacts 8. Scroll Up 3. Base Antenna 9. Scroll Down 4. Power LED (RED) 10. Delete 5. In Use/Charge LED (GREEN/RED) 11. LCD 6. Page

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11 7 10 CLARITY 8/9 C420

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6 Features E Base Side and End N 1. Ringer Off/On 5. Pulse/Tone G L 2. Volume Up 6. BOOST On/Off I 3. Volume Down 7. AC (Electrical) Adapter Jack S 4. Ring Style 8. Telephone Line Jack H

RINGER OFF ON

VOLUM E RING STYLE

1 2 3 4

5 6 7 8 7 Getting Started

CHOOSING A LOCATION 1. This phone requires a modular phone jack (RJ11C) and a standard 120V AC wall outlet.

USE ONLY WITH CLASS TWO 2. Plug the AC Adapter directly POWER SOURCE

9VDC TEL PULSE/TONE BOOST 500mA into outlet. ON/OFF 3. Do not plug other appliances into the same outlet or have outlet controlled by a wall switch. 4. Choose a location that is out of the way of normal activities. Diagram A: Table/Desktop Installation CAUTION: USE ONLY WITH CLASS 2 POWER SOURCE 9V DC, 400mA. If at any time you have questions about your telephone please contact our Customer Always connect the AC Adapter to the phone Service Department at: 1-800-552-3368 or before you connect it to the AC power. 423-622-7793. When you finish, disconnect the AC power before you disconnect it from the phone. Table/Desktop Installation 1. Plug one end of the supplied modular INSTALLATION telephone line cord into the jack marked TEL located on the back of the telephone Connecting Your Telephone base as shown in Diagram A. Carefully remove your cordless telephone 2. Plug the modular telephone line cord’s from it’s box. If there is any visible damage, other end into a modular phone jack. do not attempt to operate this equipment. Return it to the place of purchase. 3. Insert the supplied AC Adapter’s plug into the jack marked 9V DC 400mA Check to be sure that you have all items that located on the back of the telephone come with your telephone. You should have base. a HANDSET, BASE UNIT, AC ADAPTER, TELE- PHONE LINE CORD, BELT CLIP AND OWNERS 4. Plug the adapter into a standard MANUAL. A BATTERY is also included and is 120V AC power (electrical) outlet. located in the battery compartment. 5. Lift the base’s antenna to a vertical position.

8 Getting Started E 6. Set the TONE/PULSE switch located 3. Insert the plug of the AC adapter into the N on the back of the base to correct jack marked DC 9V 400mA located on G dialing mode. Please check with your the back of the telephone base. L local Phone Company if uncertain of 4. Route the adapter’s cord through the I the type of service. narrow groove located on the back of S 7. Place handset in the cradle to begin mounting bracket to secure the cord. H initial charging. 5. Plug the short modular telephone line cord into the wall plate jack, then align WALL MOUNTING INSTRUCTIONS the mounting bracket’s keyhole slots with the wall plate studs and slide the base of The base unit may be mounted on a standard the phone downward to secure it on wall plate. the wall. 1. With the back of the unit facing up insert 6. Plug the adapter into a standard AC the supplied mounting bracket’s tabs into power (electrical) outlet. the base’s lower tab slots in then direc- tion of WALL MOUNT marked on the 7. Press and lift out the handset holder tab, bracket, then press down on the brackets turn it around so the narrow tab end clips and insert them into the clip slots. extends out and slide back into its slot. This will hold the handset in the cradle 2. Plug one end of the supplied short when the phone is wall mounted. modular telephone line cord into the TEL jack located on the back of the base of 8. Lift the base’s antenna to a vertical the phone. position. 9. Set the Tone/Pulse switch located on the back of the base to correct dialing mode. Please check with your local Phone Company if uncertain of the type of service. 10. Place handset in the cradle to begin initial charging. Remember, you must charge the phone for at least 12 hours before you use the phone for the first time. Note: Remember, you must charge the phone for at least 12 hours before you Diagram B: Wall mounting use the phone for the first time.

9 Getting Started

BATTERY INSTALLATION Handset Battery Charging The C420 uses a 3.6Volt 600mAHr NiMH 1. Place the handset in the base. The rechargeable 3 cell (AAA Type) battery that is CHARGE LED on the base will included with your unit. light RED.

HANDSET BATTERY MUST BE CONNECTED 2. After the batteries are fully charged, BEFORE BEGINNING INITIAL CHARGING. check for dial tone by pressing TALK on the handset. To connect battery, remove battery compart- ment cover and connect battery pack plug Low Battery into the battery connector as shown When the handset battery gets low, there will in Diagram C. be two (2) beeps every thirty (30) seconds and the TALK button will flash. If the battery becomes low while you are on a call, you will be disconnected after about two (2) minutes. Terminate the call and recharge the battery. To recharge the battery pack, place the handset in the base. The battery charge can also be monitored via the battery charge icon. This icon appears while the phone is in the stand by mode and indicates the condition of the batteries.

Diagram C: Installing and Connecting Battery 1. Make sure the contact points are touching and the CHARGE LED is lit. 2. Be careful not to short battery with The battery in the handset must be fully conducting materials such as rings, charged for 12 hours before using the bracelets and keys. telephone for the first time. Battery Life To Install a New Battery: A fully charged battery provides an average 1. Remove battery cover talk time of about four (4) hours, or standby 2. Install new battery time of about (8) days. 3. Connect battery pack 4. Replace battery cover Talk time and standby time may vary depend- 5. Charge for 12 hours ing on operating conditions. before first use

10 Getting Started E Headset Jack HANDSET N G You can use this telephone hands-free when Set Up Mode you install a 2.5 mm headset (purchased L separately). To install, plug the headset into NOTE: In Set Up, if there is no input within I the HEADSET JACK at the top of the handset. 30 seconds, the program will default to the S last selection in that mode (e.g., Language) H While in headset mode, the volume of and the C420 will return to Standby. If at headset is controlled by the telephone and any time you want to exit Set Up and return the handset’s earpiece and microphone to Standby, press FLASH. are disconnected. 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. We recommend using the Plantronics Default: English M110 or M130 headset. 1. Press and hold CALL for three (3) seconds to enter the Set Up Hearing Aid Compatibility mode. The Caller ID display will The handset has a special coil inside of it to read, “SET LANGUAGE.” couple the sound to hearing aids equipped 2. Press CALL once to enter the with T-Switches/T-Coils. Language selection mode. The Quick Reference Guide current selected language will flash. A pullout quick reference guide is located on 3. Press UP (▲) or DOWN (▼) to scroll the bottom of your C420. It will allow you through the language options. The to quickly reference key operations of your displayed language will change to phone and also record the frequently dialed “FRENCH” or “SPANISH.” numbers and emergency numbers you may 4. Press CALL to select the have stored into your telephone. language desired.

5. Press UP (▲) or DOWN (▼) to advance to the next menu.

11 Feature Set-up

Setting the Area Code 2. Press the UP (▲) or DOWN (▼) 1. Press CALL to enter the Area Code to change the mode. selection mode. The left most digit in 3. Press CALL to confirm the selection. the code sequence will flash. Use the ▲ numeric keys on the key pad to enter 4. Press the UP ( ) or DOWN (▼) the desired area code. to go to the next menu. 2. Press CALL to confirm. If the CID mode is set to off, the LCD will display time and date and the display will 3. Press UP (▲) or DOWN (▼) to read “CID IS OFF”. advance to the next menu. Setting Time and Date Setting Auto Talk Default Time/Date “12:00 AM 01/01” Default: ON The time-and-date stamp is automatically With the auto talk feature ON the telephone updated when the first incoming Caller ID will automatically connect to a call when call is received. lifted from the cradle. With the Auto Talk If the time setting is lost during a power feature OFF, you must press the TALK button outage, the clock will flash when power to connect to an incoming call regardless of received again. the location of the handset. 1. Press UP until the display reads, 1. Press CALL to enter the auto talk “TIME/DATE”. selection mode. 2. Press CALL to start changing the date. ▲ 2. Press the UP ( ) or DOWN (▼) The display shows the current time and to change the mode. date on the top line, e.g. “12:05AM 3. Press call to confirm the selection. 12/20” with the month digits flashing. ▲ 4. Press the UP (▲) or DOWN (▼) 3. Press UP ( ) or DOWN (▼) to change to go to the next menu. the month digits. 4. Press CALL once to select. After the month Setting Caller ID On/Off digits are set, the date digits flash. Default: ON 5. Press UP (▲) or DOWN (▼) to change 1. Press CALL to enter the auto talk the date digits. selection mode. 6. Press CALL once to select. After the date digits are set, the hour digits flash.

12 Feature Set-up E 7. Press UP (▲) or DOWN (▼) to change Clarity Power Technology N the hour digits. With the Clarity Power feature, the high fre- G 8. Press CALL once to select. After the hour quency sounds are amplified more than the L digits are set, the minute digits flash. low frequency sounds so words are not just I louder, but clearer and easier to understand. S 9. Press UP (▲) or DOWN (▼) to change H the minute digits. BOOST Clarity Power On/Off 10. Press CALL once to select. After the The C420 has a BOOST CLARITY POWER minute digits are set, AM/PM will flash. button that controls the loudness of the receiver. Once the BOOST button is pressed, 11. Press UP (▲) or DOWN (▼) to for either AM or PM. an extra level of amplification is added over the entire range of the volume control. 12. Press CALL once to select. After AM or PM is selected, the time/date digits The TALK button will light ORANGE to indi- will be blank. cate the CLARITY POWER feature is activated. 13. Press CALL once to display the time/date WARNING: When the TALK button is lit again or press UP (▲) or DOWN (▼) to ORANGE volume may be at a high level. To go to the next menu. protect hearing, lower the volume control to Setting Contrast minimum before using.

Default: Level 2 Volume Control 1. Press CALL once to enter the Contrast The dial controls the level of volume the hand- Level selection mode. The current set and headset receive. The volume dial selected level flashes. provides up to 15 dB of volume before the 2. Press UP (▲) or DOWN (▼) to CLARITY POWER button is activated. Once change the level. the CLARITY POWER button is pressed, the 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 advance to the next menu. Set the switch marked Ringer On/Off located on the side of the handset. The ringer switch must be set to ON for the handset to ring.

13 Feature Set-up

NOTE: If both handset and base ringer’s are Ringer Style set to OFF, the visual ringer will flash to indi- The style of ring or cadence can also be cate there is an incoming call. adjusted by pressing the RING STYLE button. Six (6) styles are available allowing you to TELEPHONE BASE customize your ring. The ringer will sound BOOST ON/OFF Switch for 2 seconds while choosing a ringer style, to allow the user to make a choice. This switch will disable the reset feature of the BOOST Clarity Power button as follows: ON – When the Boost ON/OFF switch is set to “ON”, the Boost function will be ON every time a call starts, and will default to ON every time the phone hangs up. During a call, the BOOST Clarity Power button can RINGER O toggle the Clarity Power ON or OFF accord- FF ON VOLUM E ing to the user’s needs. RING STYLE OFF – When the Boost ON/OFF switch is set to “OFF”, the Boost function (Clarity Power) will be OFF every time a call starts, and the Diagram D: Telephone Base user will need to press the BOOST Clarity Power button in order to gain the extra level NOTE: If both handset and base ringer’s are of amplification. If the phone hangs up, the set to OFF, the visual ringer will flash to indi- Clarity Power will reset to OFF. During a call, cate there is an incoming 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. 1. Press the TALK button (TALK button Pulse/Tone will illuminate GREEN) and dial the number you wish to call. Slide the switch to the type of telephone ser- vice you have; tone for touch-tone service or 2. To end the call press the TALK button pulse for rotary dialing. or place the handset in the base.

Ringer Volume Answering a Call Adjust the volume of ring by pressing the 1. Remove handset from base. You will VOLUME UP or DOWN switch until the automatically be connected. desired ring volume is achieved. There are OR six (6) levels of volume available. 2. Press the TALK button. 14 Feature Set-up E Refer to BOOST Clarity Power and Volume in the handset is disabled. Pressing the N Control for information on adjusting volume MUTE button again will disengage the G controls (Page 14). MUTE feature. L Temporary Tone Redial/Pause I S If you have rotary (pulse) dial service, you RD/P The button operates both the last H can change from pulse to touch tone (tone) number redial and the pause feature. during a call. Last Number Redial: 1. Make phone call and wait until it is connected. The last number dialed (up to 32 digits) is stored in the redial memory until 2. Press the * key. Keys pressed after another number is dialed. this are sent as tone signals. To use this feature: 3. The phone will automatically reset to rotary (pulse) service after the 1. Press the TALK button. call ends. 2. When you hear the dial tone, press the RD/P button. Visual Ringers Visual ringers are located in both the hand- 3. The phone will automatically set antenna and the base of the telephone. dial for you. When an incoming call is received, these Pause Feature: lights will flash. The handset visual ringer will also stay lit while the phone is in use. Programming in a pause will cause the phone to wait four (4) seconds before dialing additional numbers. This feature Flash may be used when it is necessary to dial The FLASH button is activated to use custom an access code (9, for example) and calling services such as Call Waiting or wait for a second dial tone before you Three Way Calling. Please contact your can dial an outside number. Press the local telephone company for information RD/P button at the required point during on these services. the memory storage process to program a pause. Mute The MUTE button allows the user to con- LCD Display Screen duct a private conversation that you do not The LCD located on the front of the phone will want the person on the other end to hear. display the number you are dialing and with While in the mute mode, the MUTE button Caller ID service displays information about will illuminate RED and the microphone

15 Telephone Operations the call before you answer. 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- Lighted Key Pad ference develops on the line, pressing this The key pad will light for fifteen (15) seconds button will move to another channel. after removing the handset from the base. To reactivate the feature while in standby, press Security Code the TALK or the MEM button. To activate The security code prevents your cordless while the phone is in use, press any key. phone conversations from being accessed by a phone on a different line. Once the Base Lights handset battery is fully charged, the handset POWER ON – Base power is on. will automatically select the code from over 65,000 different combinations. The IN USE/ CHARGING ON – When handset is code is changed every time the handset is in the base charging, the LED will shine RED placed in the cradle. when the handset is on a call the LED will shine GREEN. If you have trouble with placing or receiv- ing calls, a lost security code may be the Page/Handset Locator cause of the problem. When this occurs, the To send a page signal from the base to the handset can no longer communicate with the handset, press the PAGE button located on base. Reset by placing the handset on the the base of the telephone. A series of rings base for 5-10 seconds. If that does not work, will sound from the handset. unplug the AC adapter from the wall outlet. Disconnect the handset battery for To locate the handset if it is away from the 5-10 seconds, and then reconnect. Place base, press and hold the PAGE button for hand-set back on the base and then reinsert approximately five (5) seconds. A series the AC adapter. of rings will sound. Return the handset to the base or press the TALK button to cancel the page.

16 Memory Storage E Memory Storage Locations To Dial From Emergency Storage Location: N The C420 has ten (10) indirect or two touch 1. Press the TALK button. G memory locations on the telephone (0-9) that L 2. Press the desired emergency button. can be programmed to dial frequently called I numbers of up to 16 digits. 3. The call will automatically dial. S H One (1) Emergency Storage button is located Editing Numbers Stored in Memory: on the handset. These storage buttons can be Replace a stored number by programming programmed with numbers of up to 16 digits. a new number in its place. Storing Numbers into Memory: Deleting Numbers from Memory: 1. Press the MEM button. 1. Press and hold the MEM button 2. Dial the number you wish to store. for (3) three seconds . 3. Press the MEM button again. 2. Enter the location number (0-9) or 4. Press either the emergency button or press the emergency button and the number on the key pad that you review the number. wish to store the number to. 3. Press the DEL button to erase the 5. A long beep will indicate the memory. ERASE MEMO and the programming process is complete. location number will be displayed. 4. Press DEL again to confirm. Dialing from Memory: 5. A long beep will indicate the 1. Press the TALK button. process is complete. 2. Press the MEM button. NOTE: During the memory storage process 3. Press the number on the key pad the TALK button will flash GREEN. where the desired number has been stored. 4. The call will automatically dial.

17 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: This telephone will automatically display • Date/Time an incoming caller’s name and telephone • Battery Status along with the date and time of the call. It • Number of received will record up to fifty (50) calls and store the Example: CALLS ALL =20 data into memory. • Number of new received calls. Example: 10 New • Repeat Icon: RPT indicates CID calls that are repeated.

Viewing Call List When an incoming call is received, the

CLARITY screen will display, the name, number, date and time of call if available.

Blocked Number C420 NUM BLOCKED will appear if the name and/ Diagram E: Caller ID Screen or number of the caller are blocked.

Functions: Unknown Number CALL: Pressing this button will dial the num- NO NUMBER will appear if the name ber displayed and functions as select and and/or number of the incoming call are save in the set up menu. not available. If the telephone number on the Caller ID ▲ SCROLL UP/DOWN: ( ) (▼) Allows for a display is longer than 12 digits the display scrolling review either up or down through will toggle between the first half of the the CID list and set up menu. number and the second half automatically. DELETE: Pressing delete will remove the entry displayed.

The LED in the handset antenna will illuminate RED to indicate a new call has been received.

18 Caller ID Operations E The REPEAT call icon will light if the C420 2. Press DEL to select. The display briefly N receives more than one call from the reads, “CID ERASED.” The next Caller ID G same number. entry appears automatically or the dis L play reads, “– NO CALLS –” if the list I There will be message to indicate end is empty. S of CID list. Phone numbers cannot be deleted while it H Placing a call from Caller ID List is in the flashing mode. 1. From stand by use the UP/ DOWN Deleting All Caller ID Information arrows to scroll through Call List 1. While reviewing the Caller ID, hold 2. Select the desired number by pressing down DEL for three (3) seconds. The CALL. Selected number will flash. Use the display flashes “ERASE ALL?” Up and Down Scroll to view available dialing options (7 digits, 10 digits or 2. Press DEL to select. The display briefly 11 digits). reads “ALL CID” and “ERASED” and then “— NO CALLS —”. 3. Press CALL to select the desired call format (see below). The number will At any time, you can press FLASH one stop flashing. time to return to standby mode. Or it will 4. Press CALL to dial. return to standby automatically when 30 seconds has elapsed without any keys When you place calls using Caller ID infor- being pressed. mation, you have three (3) dialing options to select from: Call Waiting 1. 7 digit number (123-4567) When you are on an existing call, you 2. 7 digit number plus area code will hear a beep. The LCD will display the (890-123-4567) incoming calls caller ID information. To answer the waiting call, press FLASH. The 3. 1 plus area code plus 7 digit number original call will be placed on hold and you (1-890-123-4567) will be connected with the waiting call. To return to the original call, press FLASH. Deleting Calls from Call list 1. While reviewing the Caller ID, press If you do not access the waiting call, the DEL to delete the displayed caller infor caller ID information is transferred into the mation. The display flashes “ERASE?” call list as a viewed call.

19 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. bath room, kitchen sink, etc.) 1. Avoid dropping or knocking the unit. 2. Dust the unit regularly. Wipe the

Troubleshooting

The unit will not operate/no dial tone: The phone does not ring when you receive a call: • Verify the TALK Button is lit. • Make sure the RINGER switch on the • Verify the AC Adapter is securely handset and base are set to ON. plugged into the base and the telephone. • Verify the AC Adapter is securely plugged into the base and the • Verify the telephone line cord is telephone. securely plugged into the wall jack and the telephone. • Verify the telephone line cord is securely plugged into the wall jack • Make sure the base antenna is in an and the telephone. upright position. • Make sure you are in the usable • Make sure the handset battery is range of the . fully charged. • You may have too many extensions • Verify the telephone is in the correct on your line. Try unplugging a dialing mode, tone (touch) or few devices. pulse (rotary). • Make sure you are in the usable range of the base station. • Reset the security code by placing the handset in the base for 5-10 seconds.

20 Troubleshooting E Noise, Static, Interference or Other Calls Difficulty in Placing or Receiving Calls: N Heard while Using the Handset: • Move closer to the base and G • Try changing channels. try again. L I • Make sure the base antenna is in an • If moving closer does not work, you upright position. may have lost the security code. S H • Make sure you are in the usable • Reset code by placing the handset range of the base station. back on the base for 5-10 seconds. (See Security Code Section) • Make sure the handset battery is fully charged. • Make sure you have selected the correct dialing mode, tone or pulse. • Try relocating the base unit to another location. • Make sure the AC Adapter is not plugged into a wall outlet with other • Make sure the AC Adapter is not appliances. Disconnect for 5-10 plugged into the wall outlet with seconds then reconnect. Place the other appliances. handset back on the base and • Try relocating the base unit to reinsert the AC Adapter. another location. • Make sure the handset battery is Phone Will Not Hold Charge: fully charged. • Make sure the charging contacts on the handset and base are free of dust and dirt. Clean the contacts with a soft cloth. • Make sure CHARGE LED on the base is lit when handset is in the cradle. • If necessary, replace the handset battery. (See Handset Battery Charging)

21 Regulatory Compliance

Part 68 of FCC Rules Information The digits represented by ## are the REN a) This equipment complies with Part 68 of without a decimal point (e.g., 03 is a REN of the FCC rules and the requirements adopted 0.3). For earlier products, the REN is sepa- by the ACTA. On the bottom of this equip- rately shown on the label. ment is a label that contains, among other d) If this telephone equipment causes harm to information, a product identifier in the the , the telephone compa- format US:AAAEQ##TXXXX. If requested, ny will notify you in advance that temporary this number must be provided to the tele- discontinuance of service may be required. phone company. But if advance notice isn’t practical, the tele- b) A plug and jack used to connect this phone company will notify the customer as equipment to the premises wiring and tele- soon as possible. Also, you will be advised of phone network must comply with the appli- your right to file a complaint with the FCC if cable FCC Part 68 rules and requirements you believe it is necessary. adopted by the ACTA. A compliant telephone e) The telephone company may make chang- cord and modular plug, RJ11C USOC, is pro- es in its facilities, equipment, operations or vided with this product. It is designed to be procedures that could affect the operation of connected to a compatible modular jack that the equipment. If this happens the telephone is also compliant. See installation instructions company will provide advance notice in for details. order for you to make necessary modifica- c) The REN is used to determine the number tions to maintain uninterrupted service. of devices that may be connected to a tele- f) If trouble is experienced with this telephone phone line. 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- not all areas, the sum of RENs should not phone network, the telephone company may exceed five (5.0). To be certain of the number request that you disconnect the equipment of devices that may be connected to a line, until the problem is resolved. as determined by the total RENs, contact the local telephone company. For products g) This telephone equipment is not intended approved after July 23, 2001, the REN for to be repaired and it contains no repairable this product is part of the product identifier parts. Opening the equipment or any attempt that has the format US:AAAEQ##TXXXX. to perform repairs will void the warranty. For service or repairs, call 1-800-552-3368.

22 Regulatory Compliance E h) Connection to party line service is subject These limits are designed to provide reason- N to state tariffs. Contact the state public utility able protection against harmful interference G commission, public service commission or cor- in residential installation. L poration commission for information. This equipment generates, uses and can I i) If your home has specially wired alarm radiate frequency energy and, if not S equipment connected to the telephone line, installed and used in accordance with the H ensure the installation of this telephone equip- instructions, may cause harmful interference ment does not disable your alarm equipment. to radio communications. However, there is If you have questions about what will disable no guarantee that interference will not occur alarm equipment, consult your telephone com- in a particular installation; if this equipment pany or a qualified installer. does cause harmful interference to radio j) This telephone equipment is hearing aid or television reception, which can be compatible. determined by turning the equipment off and on, you are encouraged to try to Customer-Owned Coin/Credit Card Phones: correct the interference by one of the To comply with state tariffs, the telephone following measures: company must be given notification prior to 1. Where it can be done safely, reorient connection. In some states, the state public the receiving television or radio antenna. utility commission, public service commission or corporation commission must give prior 2. To the extent possible, relocate the televi- approval of connection. sion, radio or other receiver with respect to the telephone equipment. (This increases Part 15 of FCC Rules Information the separation between the telephone equip- This device complies with Part 15 of the ment and the receiver.) FCC Rules. Operation is subject to the fol- 3. Connect the telephone equipment into lowing two conditions: (1) This device may an outlet on a circuit different from that to not cause harmful interference, and (2) this which the television, radio, or other receiver device must accept any interference received, is connected. including interference that may cause unde- sired operation. 4. Consult the dealer or an experienced Radio/TV Technician for help. Your equipment has been tested and found to comply with the limits of a Class B digital CAUTION: Changes or modifications not device, pursuant to Part 15 of FCC rules. expressly approved by the manufacturer responsible for compliance could void the user’s authority to operate the equipment.

23 Regulatory Compliance

Industry Canada Technical Specifications CAUTION: Users should not attempt to make such connections themselves, but should This product meets the applicable Industry contact the appropriate electrical inspection Canada technical specifications. authority, or electrician, as appropriate. Before installing this equipment, users should The Ringer Equivalence Number is an indi- ensure that it is permissible to be connected cation of the maximum number of terminals to the facilities of the local telecommunica- allowed to be connected to a telephone tions company. The equipment must also be interface. The termination on an interface installed using an acceptable method of may consist of any combination of devices connection. In some cases, the company’s subject only to the requirement that the sum inside wiring associated with a single line of the Ringer Equivalence Numbers of all the individual service may be extended by devices does not exceed five. means of a certified connector assembly (telephone extension cord). The customer (The term “IC:” before the certification/regis- should be aware that compliance with the tration number only signifies that the Industry above conditions may not prevent degrada- Canada technical specifications were met.) tion of service in some situations. Repairs to certified equipment should be made by an The party responsible for regulatory authorized Canadian maintenance facility compliance: designated by the supplier. Clarity, A Division of Plantronics, Inc. Any repairs or alterations made by the user 4289 Bonny Oaks Drive, Suite 106 to this equipment, or equipment malfunc- Chattanooga, TN 37406 tions, may give the com- Phone: 1-800-552-3368 pany cause to request the user to disconnect The following warranty and service informa- the equipment. tion applies only to products purchased and Users should ensure for their own protection used in the U.S. and Canada. For warranty that the electrical ground connections of the information in other countries, please contact power utility, telephone lines and internal your local retailer or distributor. metallic water pipe system, if present, are connected together. This precaution may be particularly important in rural areas.

24 Warranty and Service E Limited Warranty Implied Warranties N Clarity, a division of Plantronics, Inc. Under state law, you may be entitled to the G (“Clarity”) warrants to the original consumer benefit of certain implied warranties. These L purchaser that, except for limitations and implied warranties will continue in force only I exclusions set forth below, this product shall during the warranty period. Some states do S be free from defects in materials and work- allow limitations on how long an implied H manship for a period of one (1) year from warranty lasts, so the above limitation may the date of original purchase (“Warranty not apply to you. Period”). The obligation of Clarity under this warranty shall be at Clarity‘s option, without Incidental or Consequential Damages charge, of any part or unit that proves to be Neither Clarity nor your retail dealer or defective in material or workmanship during selling distributors has any responsibility for the Warranty Period. any incidental or consequential damages including without limitation, commercial loss Exclusions from Warranty or profit, or for any incidental expenses, This warranty applies only to defects in expenses, loss of time, or inconvenience. factory materials and factory workmanship. Some states do not allow exclusion or limita- tion of incidental or consequential damage, Any condition caused by accident, abuse, so the above limitation or exclusion may not misuse or improper operation, violation of apply to you. instructions furnished by Clarity, destruction or alteration, improper electrical voltages or Other Legal Rights currents, or repair or maintenance attempted by anyone other than Clarity or an autho- This warranty gives you specific legal rights rized service center, is not a defect covered and you may also have other rights which by this warranty. Telephone companies vary from state to state. manufacture different types of equipment and Clarity does not warrant that its equip- ment is compatible with the equipment of a particular phone company.

25 Warranty and Service

How to Obtain Warranty Service Please use the original container, or pack the To obtain warranty service, please prepay unit(s) in a sturdy carton with sufficient pack- shipment and return the unit to the appropri- ing material to prevent damage. ate facility listed below. Include the following information: In the United States 1. A proof-of-purchase indicating model Clarity Service Center number and date of purchase. 4289 Bonny Oaks Drive, Suite 106 2. Bill-to address. Chattanooga, Tennessee 37406 3. Ship-to address. Tel: (423) 622-7793 4. Number and description of units shipped. or (800) 426-3738 5. Name and telephone number of person : (423) 622-7646 to call, should contact be necessary. or (800) 325-8871 6. Reason for return and description of In Canada the problem. Plantronics Service Center Damage occurring during shipment is 8112 Trans Canada Highway deemed the responsibility of the carrier, Ville St-Laurent, Quebec H4S 1M5 and claims should be made directly with Canada the carrier.

Tel: (800) 540-8363 (514) 956-8363 Fax: (514) 956-1825

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