FCC ID: AAO4303519 2.4 GHz Direct Sequence SS Cordless Phone

. BSE AARE Fahy Oye. ig oe F < Fheptee. om gem fe ee eRe oa easy BD hy OSE Papago dais thet PLP Ee - . eke RE RLS beg Fey April 02, 2001 43-3519(REV 2) 137 Page _ 43-3519 Operation Manual 2.4 GHz Digital Speread Spectrum Technology Cordless Telephone With Caller ID/ Caller Waiting ID PLEASE READ THIS INSTRUCTION MANUAL CAREFULLY April 02, 2001 43-3519(REV 2) 2037 Page CONTENTS important Safety instructions -----__________------ 3 teenie Cautionary Instructions 4 i nen nnncnmr nem eneeerersnanancennascmwcanecsewennncenamacncann ff Function and Control Locations 6 installation/oparation --------- =

1. FUNCTIONAL SUMMARY 7 1.1 SCOPE 7 12 FEATURES 7 78 1.3 UNIT AS RECEVED 1.3.4 Telephone Base unit Model 4.3.2 Telephone Handset Mode! 43-3519 (Factory Initial) 1.3.2 Accessory 1.4 DISPLAY 1.41 LED 142 LEDs on Base unt 1.43 &LCDon the Hand set 1.5 QUICK VIEW OF CONTROLS AND DISPLAYS 1.5.1 Base station 1.6 USER INTERFACE 1.6.1 Understanding displays 1.8.2 Waming indicators 163 Page 1.6.4 Making and Terminating a call 1.65 Controle during OFF-HOOK 1.6.6 Programming mode 1.8.7 Phone Directory 16.8 Caller 1D Features & Functions 2. ELECTRICAL SPECIFICATION 3. LINE INTERFACE 2.1 Channel table 3.1 Battery Requirements 3.2 Flash Timing 3.3 DTMF and Pulse Dialing 3.4 Dial Pulse Mute 3.5 Ring Senstivty: Shall meet the RS Spec 3.6 ON-HOOK DC and AC Characteristics: Shall meet the RS Spec. 3.7 OF F-HOOK Characteristics: Shall meet the RS Spec. 3.8 Caller ID 910 1030 10 10~11 1 12-15 1517 17-19 2430 ci 32-33 April 02, 2001 - : 43-3519(REV 2) : 3/37 Page IMPORTANT SAFETY INSTRUCTIONS When using telephone equipment, basic safety precautions should always be followed to reduce the risk Of fro, alechtical shock. and injury to persone including tne following:

1. Read and understand all instructions. 2. Follow all wamings and instructions marked on the product. 3. Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners, or aerosol cleaners. Use a damp cloth for cleaning. If necessary, use a mild soap. 4. Do not use this product near water, for example near a bath tub, wash bowl, kitchen sink, or laundry tub, in a wet basement, or near a swimming pool. 6. This product should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of power supply to your home, consult your dealer or local power company. 7.De not allow anything to rest on the telephone line cord. Do not locate this product where the cord will be abused by persons waiking on it. :

8. Never push objects of any kind into this product through the cabinet slots as they may touch dangerous voltage points or short out parts that could result in a risk of fire or electric shock. Never spill liquid of any kind on the product. 9. To reduce the risk of electric shock, do not disassemble this product, but take it to a qualified serviceman when some service or repair work is required. Opening or removing covers may expose you to dangerous voltages or other risks. Incorrect re-assembly can cause electric shock when the appliance is subsequently used. 10.Unplug this product from the wail outlet and refer to qualified service personnel under the following a. When the power supply cord or plug is damaged or frayed. b. If liquid has been spilled into the product. G. If the product has been exposed to rain or water. dif the product does not operate normally by following the operating instructions. Adjust only those controls, that are covered by operating instructions. Improper adjustment of other controls may result in damage. and will often require extensive work by a qualified technician to restore the product to normal operation,

@. if the product has been dropped or the cabinet has been damaged. f. If the product exhibits a distinct change in performance. 11 Avoid using a telephone (other than @ cordiess type) during an electrical storm. There may be a remote risk of electrical shock from i 12.Do not overload wall outlets and extension cords as this can result in the risk of fire or electrical shack. 13.Do not use the telephone to report a gas leak in the vicinity of the leak. 14.Use only the power cord and batteries indicated in this manual. Do not dispose of batteries in a fire. They SAVE THESE INSTRUCTIONS

"" Apeit 02, 2001 43-3519(REV 2) 4837 Page BATTERY CAUTIONARY INSTRUCTIONS CAUTION: To Reduce the Risk of Fire or Injury to Persons, Read and Follow these instructions. 1. Use only replacement battery pack of the required size and type: F3HR-AAAL60 made by E-CELL Pte Ltd. or LHBOOAAA3B(AAA x3) made by LEXEL BATTERY CO.,LTD. Use only 3.6V 600mAn Nickel Cadmium(Ni-Cd). 2.Do not dispose of the batteries in a fire. The cell may explode. Check with local codes or possible special i Li . 2. Do not open or mutilate the battery. Released electrolyte is corrosive and may cause damage to the eyes or skin. it may be toxic if swallowed. 3. Exercise care in handling batteries in order not to short the battery with conductors such as rings, bracelets, and keys. The battery or conductor may overheat and cause bums. 4. Do not attempt to recharge the batteries provided with or identified for use with this product by heating them. The baltery may leak corrosive electrolyte or may explode. 5. Do not attempt to rejuvenate the batteries provided with or identified for use with this product s by heating them. Suddenly release of the batteries electrolyte may occur causing bums or irritation to eyes or skin. 8. All batteries should be replacad at the same time. Midng fresh and discharged batteries could increase intemal cell pressure and rupture the discharged batteries. 7. When inserting batteries into this product, the proper polarity or direction must be observed. Reverse insertion of batteries can cause charging, and that may result in laakage or explosion. 8. Remove the battery from this product if the product will not be used for a long period of time (several months Of more) since during this time the battery could leak in the product. 9. Discard dead batteries as soon as possible since dead batteries are more likely to Jeak in a product. 10.Do not store this product, or the battery provided with or identified for use with this product, in high temperature areas. Batteries that are stored in a freezer or refrigerator for the purpose of extending shelf life should be protected from condensation during storage and defrosting. Batteries should be stabilized at room temperature prior to use after cold storage. CAUTION 4& ; Any changes or modifications in the construction of this device which is Not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment.

eR ER eR 43-3519(REV 2) FEATURES Thank you for purchasing the Model 43-3519 Cordless Telephone. The 43-3519 Cordless Telephone with Calter ID incorporates 60 names and numbers Caller iD memories. 43-3519 Cordless Telephone offers the following features;

Extra Large 3-Line Liquid Crystal Display :

@ = Displays Caller's name and number as well as the time and date of the Cail *

@ Displays Caller's name and number of the Cail Wailing **

@ Programmable Area Code up to 3 digits. Displays Total Calis as well as Total New Calls in Standby Screen.

* Requires telephone company provided Caller ID and Number Service.

* Requires telephone company provided Call Waiting Deluxe Service. Caller ID User Features Included :

@ Stores CID information for the last 60 calls that you have received. Review UP(4A) /DOWN{V) button to review stored Caller ID records. Erase button can selectively or collectively erase stored calls. New call and total call symbol mdicators. Battery indicator Call back button. Telephone User Features Included :

Comfortable, lightweight headset with adjustable boom microphone. MUTE button -

Last number REDIAL button redia!s the last phone number dialed. TONE/PULSE switch allows the user to select either type of service. Ringer HI-LOW awtich allows the user to select high or low ringer volume. Slide Volume control switch. Belt Clip. Hearing Aid Compatible. RE hE ap) Th He ey April 02, 2001 . 43-3519(REV 2) 6/37 Page FUNCTION AND CONTROL LOCATIONS

(Figure 1) 2.5mm Mini Stereo Plug Speaker LCD Display MUTEPGM Button Sti Volume Contro!

MEM Button TALK Button REDIAU/PAUSE FLASH Button Button DELETE Button Remote Key pad Directi Cursor mic April 02, 2001 INSTALLATION/OPERATION 1. FUNCTIONAL SUMMARY 1.4. 12 1.3.

= tem SCOPE This specification defines the product features and requirements of the 43-3519, 2.4 GHz digital cordiess telephone featured with CID. FEATURES:

43-3519(REV 2)

=> 2.4 GHz digital spread spectrum technology (DSST)

=> Caller ID / Call Waiting ID

=> Back lighted LCD on the Hand Set (upgrade next PCB)

=> Head phone jack on the hand set

=> line cord storage wrap ~ (upgrade next)

=> Belt Clip attachable Handset. Belt clip

Auto ON-HOOK:

The unit shall automatically be placed on-hook when the handset is placed in the charging cradle, or when the handset has been determined to be Out-of-Range for a sufficient period of time (Approx = after 30 seconds).

# of Memories:

# of CID Memories :

VEU

# of digits in the memory:

# of characters in the memory:

# of digits in Redial buffer:

RBN8S The package as received shall consist of the following:

1.3.1. Telephone Base unit Model Charging capability for handset 1.3.2. Telephone Handset Mode! 43-351(Factory inital) Headphone jack Ringer set to High Electronic Volume control with nominal setting (Minimum , Level-1) All Sets Clears Dial Memory, Area Code, CID Data Consumer-replaceable Ni-MH Rechargeable battery installed, April 02, 2001 43-3519(REV 2) 8/37 Page INSTALLATION/OPERATION - continued 1.3.3.1. AC-DC Adapter Marking (for Example ) The following information must appear on the AC-DC Adapter. RADIOSHACK CLASS 2 POWER SUPPLY MODEL. NO. : 00CKX INPUT: 120VAC 60HZ TBD OUTPUT : DC 9V S00mA MADE iN AAA Where AAA is Country Of Origin The CSA symbol with control number located near symbol The UL symbol with control number located near symbol. Plug connection symbol. :

In addition, there shall be a caution marking per UL requirement. CAUTION: RISK OF ELECTRICAL SHOCK. DRY LOCATION USE ONLY. 1.4. DISPLAY:

1.4.1. LED:

"Off Indicate no action is in progress. LED on # the phone is off-hook. LED slow blinking if <PAGE > key is pressed ast blinking per cadence d

| ave ED LED of F the handset is out of the LED on #f the handset is on the cradie. 1.4.3. LCD on the Hand set: *

1.4.3.1. LCD Characteristics: Three lines on the TAD mm x TBD mm

- 1% tine: Time (HH:MM AM/PM), Date(MM/DD), NEW, Repeat , No

- 2" ine: 12 alphanumeric digits dot matrix for Phone # or mode indication/Total calls

- 3" fine: 12 alphanumeric digits dot matrix for Name or mode indication/New cals 1.4.3.2.Back lighting: Backlight will tum on for Incoming call or any key action reiated to the CID operations. Backiight will tum off (Shell be upgrade next)

## Back light Should Automatically tum off after 8 seconds. ##

April 02, 2001 43-3519(REV 2) 9/37 Page INSTALLATION/OPERATION - continued 1.4.3.3. Display. LCD shall stay for 20 Seconds and retum to standby state if no subsequent key action is taken. This 20 seconds time out counter will be always reset to Zero whenever a key is pressed. 20 seconds time out shall apply to the following functions: CiD review, Memory review, Program mode such as Area code, ringer on/off selection. Call Timer. LCD shall count and display a phone-in-use time during incoming or outgoing call. 1.6. QUICK VIEW OF CONTROLS AND DISPLAYS:

1.6.1. Base station:

1.5.1.1. Page key This kay begins and ends to page the handset. To page, press the <PAGE> key, then the base sends a signal to handsets for a maximum of 15 seconds. To cancel a page at the base before the time-out automatically, press the <PAGE> key again. To sinp the page before the time-out automatically, press any key. 1.5.1.2.Keys:

The keys have the following definition:

1.5.1.2.1.Numeric keys: =

The numeric keyboard is used when dialing and entering numbers. The <* / TONE> is normally used as the <*> key. If the <* / TONE> key is pressed in pulse-dial mode then the rest of the digits will be dialed in DTMF dial-mode. 1.5.1.2.2. Function keys The function keys have the following functions:

<FLASH/CALLBACK> Pressing the <FLASH > key gives a 600ms break signal . Remark ; This label will be corrected to <FLASH>

<ERASE> The <ERASE> key is the delete key. Remark : This label will be corrected to <DELETE>. aA wv 1. on hook : The arrow keys A oF v are used to raview the call ists stored in the CID Memory stack while in standby-mode. 2. off hook : Volume up / down. April 02, 2001 43-351QXREV 2) 10/37 Page INSTALLATION/OPERATION - continued

<TALK> Answers calls and initiates a dial tone on the line. Releases

(disconnects) the active line.

<REDIAL/PAUSE> This key will insert a pause during storing a phone number into memory.

<MUTE/PGM> = Refer to 1.6.6

<MEMO> Refer to Attoched Refer to 1.6.7 Remark : This label will be corrected to <MEM>

1.5.1.3. Back lighting:(upgrade next) The handset hes backlight, LCD backlight. The backlight will tum on for incoming cail or any key action related to the CID operation. Backlight will tum off after 8 seconds of the last CID or key activity 1.6. USER INTERFACE:

1.6.1. Understanding displays:

The handset display gives some information about call status and user options. The content is changed according to the state of the phone. When no cail is active, the handset display shows as below. Total: 00 otal: 40 Rigner : Off New: 00 4.6.2. Warming indicators:

1.6.2.1. Low battery Indicator:

f battery low becomes detected (battery drops to between 3.1V +0.2volts), The message "Low battery will be only displayed on the LCD at the stand-by mode, and & warning beep shail be provided every 4 seconds to indicate the low battery status

& Low battery message will be also displayed on the LCD at the talk mode. In standby 1:30 30 Low Battery In Use hag O03 1187 Page April 02, 2001 43-3519(REV 2) INSTALLATION/OPERATION - continued 1.6.2.2 Range Waming:

If the handset is moved to 2 point where the base and handset can no longer communicate each other, the handset will make a waming beep to alert Out of Range. in addition, the message Out of range appears whenever the handset reaches the end of the range limit. When the handset is in-range, the message disappears if the handset will bring back into the inrange within 30 seconds, it wil stop the waming beep tones. If not, # will enter standby mode. While the handset is in out of range at the talk mode. The handset will beep at the interval of 4 seconds & have the message, out-of range, displayed on the LCD. OUt-Of range, disptayed on the LCD. In standby:

: Total: 00 OUT OF RANGE

. in use:

130 w OUT OF RANGE 1.6.3. PAGE 2.6.3.1. Display pre-condition 2.6.3.2. Display post-condition Paging When pressing the <PAGE> key on the base set, The Line indicator and "Paging" will display while a page ring tone is sounded. April 02, 2001 43-3519(REV 2) 1287 Page INSTALLATION/OPERATION - continued 1.6.4. Making and Terminating a call 1.6.4.1. in-coming call Total: 40 New: 40 1.6.4.1.1. Display pre-condition The Line indicator will blink and Ringing display while a ring tone is sounded. inging if user who has subscribed to CID services is receiving a call, the display will

@ppear who is calling. Note : 11:30AM,3/06, number and name are the C!D-information. {f available, The LINE indicator ts banking and a ring tone is sounded. 1050 986 ad 123-456-709 -

if the CID information has been interrupted during transmission or the phone is excessively noisy, the Data Error are displayed. See section CID Prompt messages. 1.6.4.12. Key sequence Press the <TALK> key. 1.6.4.1.3. Display post-condition TALK When the connection to the PSTN line is established, The LINE indicator TALK appears. April 02, 2001 43-3519REV 2) INSTALLATION/OPERATION - continued 1.6.4.2.0ut-going call by post-dialing 1.6.4.2.1. Display pre-condition 1.6.4.2.2.Key sequence

. Press the <TALK> key. Prass digit keys such as <5> <6> and <7> key. 0:00 02

TALK 1.6.4.2.3.Dispiay post-condition 0:00 os

- 37 TALK 1.6.4.3.REDIAL:

1.6.4.3.1.0ut-going call by pre-dialing 1.6.4.3.1.1. Display pre-condition 1.6.4.3.1.2. Key sequence Press <TALK> and <REDIAL/PAUSE> key. 12345678901234 345678901234 April 02, 2001 43-351XREV 2) 1487 Page INSTALLATION/OPERATION - continued 1.6.4,3.1.3. Display post-condition

> 345678901234 1Z45670901734 TALK 1.6.4.3.2. Out-going call by post-dialing :

1.6.4.3.2.1. Display pre-condition 1.6.4.42.2 key sequence

. Press <TALK> and <REDIAL/PAUSE> hey. The last fumber dialed shail be re-dialed.

: 12345670901234 > 345678901234 TALK e<REDIAL/PAUSE> key is pressed, the unit wil redial the last number dialed from any source (manually entry, dialing memory, CID call back or a previous last number redial). 1.8.4.4. Combination dialing All memories and manual digits can be cascaded in any combination (except redial can be activated only when pressed as the first kay afler going off-Hook). Note : The dialed digits in pre-dialing (ON-HOOK) are limiled up to 24 digits but the digits in off-Hook are not imited. 1.6.4.5. Memory dialing: *

The handset can store 10 phone numbers and names of each up to 20 digits and 12 characters long, which can then be speed dialed. Stored numbers can include sattings made with * and # key. The pause key can aleo be stored in memory. 1.6.4.5.1. Display pre-condition April 02, 2001 43-35 19(REV 2) 1887 Page INSTALLATION/OPERATION - continued 16.452. key sequence To speed dial numbers stored in the memories. Prees <TALK> key in the standby. o Press and release <MEMO> key. Prees the memory locaton number (0 to 9). A number previously stored in memory will be dialed. 123456789012 > | 780012345678 345678 TALK After dialing a number, press <WEN> key followed by the another memory location. Anext number will be dialed in succession. 34567890 TALK 1.8.5. Controls during OFF-HOOK:

- This section explains how to manage calls from the handsets. 1.6.5.1. Flash Pressing the <FLASH> key during off-hook employ an on-hook transition for the time Period. During the flash interval, the phone will not respond to any key presses except

<TALK> key or piacing the handset on the cradie to on-hook mode. The iat dieied number will be stored in the redial memory. The Flash will not be able fo be stored in the redial memory. e Presa <FLASH> ley then a new number can now be dialed. 1.6.5.2. Electronic mute The 43-3519 inchides an olectronics mute feature, which allows the user to piece the phone in muted condition, thus disabling transmission to the phone line. 1.6.5.2.1. Mute Enable Preas the < PGM/MUTE > key to mute the handeet's microphone, the diepley shows a prompt "MUTE". 0:01 2 MUTE 1.6.5.2.2. Mute Disable Press the < PGM/MUTE> key again. om 20 TALK April 02, 2001 43-3519REV 2) INSTALLATION/OPERATION - continued 1.6.5.3. Temporary Tone:

If the unit is set to pulse dialing, the dial mode will be switched to tone by pressing

<* FTONE> key. The tone digits will begin dialing followed by the inter-digit pause for the last pulse digit dialed prior to pressing </TONE> key. The dial mode shail reset to pulse affer an on-hook transition by pressing <FLASH> or <TALK> key. 1.6.5.4. Volume Control on the handset 1.6.5.4.1. Volume Down:

1.6.5.4.1.1. Display pre-condition 0:01 20 567 , TALK 16.5.4.1.2. Key sequence Press "v key during conversation. The change of volume is executed in1 step. if volume is already in the minimum position & press v ", Display shall show as follows and the handset will make error beeps to alert. 0:01 40 Volume 1 PD DD Remark : First display was changed from Volume 1 to Volume 4

* on working sample. 0:01 VOLUME 1)>)>>

40

1.6.5.4.1.3. Display post-condition 0:01 #0 367 TALK 1.6.5.4.2.Volume up 1.6.5.4.2.1. Display pre-condition 0:01 a TALK April 02, 2001 43-3519(REV 2) 1787 Page INSTALLATION/OPERATION - continued 1.6.5.4.2.2.Key sequence Press key to adjust the volume during conversation. If volume were in maximum & pressed, the display shows as follows and the handset will make error beeps to alert. 0:01 40 VOLUME 4) > >>

1.6.5.5. Ringer off on the handset Refer to 1.6.6.4. 1.6.6. Programming mode This will step through the followmg programming mode when the <PGM/MUTE> is pressed each time. 1.6.6.1.AREA CODE SETTING 1.6.6.1.1. Manual Setting To enter the area code satting, press <PGM/MUTE> key while in the on-hook. The LCD will display AREA CODE"

[mone] [mone 3 Enter 3 digits of area code. Cursor will move to right when entered a digit AREA CODE AREA CODE 33 333 When pressing <MUTE/PGM> key again to save the current mode:

selected , the LCD displays RING LEVEL. April 02, 2001 43-3519(REV 2) 1837 Page

[ALLATION/OPERATION - continued 1.6.6.2. Ring level setting e Press <MUTE/PGM> key 3 times while in the on~hook. The display shows the current ring level. The default setting is the Hi. Pressing (*) or GF) key will set to sing level, Press ( #) key one time during the ring level setting mode. The LCD display shows as follows. ;

Remark : Left & Right cursor will be sitk printed for each key at next sample stage. When pressing <MUTE/PGM> key again to save the current mode selected, A confirmation tone will sound and then will exit the program mode. 1.8.6.3. Displayed Ring off mode on the handset if your setting the Ringer off mode. This indicate Ringer off

\ while the handset is standby mode on the LCD. 1.6.6.3.1. Setting the Ringer off mode Setting follow is refer to 1.6.6.3 RING LEVEL H LO > OFF Press < MUTE/PGM> Key to save the mode and exit the phone program mode. -18-

April 02, 2001 43-35 19(REV 2) 19/37 Page INSTALLATION/OPERATION - continued 1.6.6.4.2. Display pre condition

+ Standby mode on LCD Ringer Off New: 00 1.6.6.4.3. When received incoming(call) Caller ID S471 JOWN 16.6.8.4, Display post condition oe,

FCC REQUIREMENTS This equipment complies with Part 68 of the FCC Rules. On the bottom or back of this equipment is a label that contains, among other information, the FCC Registration Number and Ringer Equivalence Number (REN) for this equipment. Upon request, you must provide this information to your telephone company. The USOC number of the registration jack for the equipment is RJ11C. A FCC compliant telephone cord and modular plug is provided with this equipment. This equipment is designed to be connected to the telephone network or promises wiring using a compatible modular jack which is Part 68 compliant. See Installation Instructions for details. The REN is useful to determine the quantity of devices you may connect to your telephone line and still have all of those devices ring when your telephone number is called. In most, but not all areas, the sum of the RENs of all devices connected to one line should not exceed five (5). If your telephone equipment causes harm to the telephone network, the telephone company may discontinue your service temporarily. If possible, they will notify you in advance. If advanced notice isnt practical, you will be notified as soon as possible. You will be informed of your right to file a complaint with the FCC. Your telephone company may make changes in its facilities, equipment, operations or procedures that could affect the proper functioning of your equipment. If they do, you will be notified in advance to give you an opportunity to maintain uninterrupted telephone service. If you experience trouble with this telephone equipment, disconnected this equipment from the network until you are sure the equipment is not malfunctioning

This equipment may not be used on coin service provided by the telephone company.

Connection to party lines is subject to state tariffs.

This equipment if it uses a telephone handset is hearing aid compatible Please follow instructions for repairing if any (e.g. battery replacement section), otherwise do not alternate or repair any parts of device except specified. WARNING : Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. NOTE : This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on, the user in encouraged to try to correct the interference by one or more of the following measures.

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment in to an outlet on a circuit different from that to which the receiver is needed.

Consult the dealer or experienced radio/TV technical for help. FCC REQUIREMENTS - continued RF SAFETY INFORMATION Important : To maintain compliance with the FCCs exposure guidelines, please read the following specific operating instruction. Base The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. Handset This device and its antenna(s) must not be co-located or operating in conjunction with any other antenna or transmitter. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Privacy of communications may not be ensured when using this phone.