Motorola Turbo DialTM Cellular Phones specifications 78 U.S. Food and Drug Administration FDA

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How much evidence is there that hand-held mobile phones might be harmful?

Briefly, there is not enough evidence to know for sure, either way; however, research efforts are on-going. The existing scientific evidence is conflicting and many of the studies that have been done to date have suffered from flaws in their research methods. Animal experiments investigating the effects of RF exposures characteristic of mobile phones have yielded conflicting results. A few animal studies, however, have suggested that low levels of RF could accelerate the development of cancer in laboratory animals. In one study, mice genetically altered to be predisposed to developing one type of cancer developed more than twice as many such cancers when they were exposed to RF energy compared to controls. There is much uncertainty among scientists about whether results obtained from animal studies apply to the use of mobile phones. First, it is uncertain how to apply the results obtained in rats and mice to humans. Second, many of the studies that showed increased tumor development used animals that had already been treated with cancer-causing chemicals, and other studies exposed the animals to the RF virtually continuously--up to 22 hours per day.

For the past five years in the United States, the mobile phone industry has supported research into the safety of mobile phones. This research has resulted in two findings in particular that merit additional study:

1In a hospital-based, case-control study, researchers looked for an association between mobile phone use and either glioma (a type of brain cancer) or acoustic neuroma (a benign tumor of the nerve sheath). No statistically significant association was found between mobile phone use and acoustic neuroma. There was also no association between mobile phone use and gliomas when all types of types of gliomas were considered

together. It should be noted that the average length of mobile phone exposure in this study was less than three years.

When 20 types of glioma were considered separately, however, an association was found between mobile phone use and one rare type of glioma, neuroepithelliomatous tumors. It is possible with multiple comparisons of the same sample that this association occurred by chance. Moreover, the risk did not increase with how often the mobile phone was used, or the length of the calls. In fact, the risk actually decreased with cumulative hours of mobile phone use. Most cancer causing agents increase risk with increased exposure. An ongoing study of brain cancers by the National Cancer Institute is expected to bear on the accuracy and repeatability

of these results.1

2Researchers conducted a large battery of laboratory tests to assess the effects of exposure to mobile phone RF on genetic material. These included tests for several kinds of abnormalities, including mutations, chromosomal aberrations, DNA strand breaks, and structural changes in the genetic material of blood cells called lymphocytes. None of the tests showed any effect of the RF except for the micronucleus assay, which detects structural effects on the genetic material. The cells in this assay showed changes after exposure to simulated cell phone radiation, but only after 24 hours of exposure. It is possible that exposing the test cells to radiation for this long resulted in heating. Since this assay is known to be sensitive to heating, heat alone could have caused the abnormalities to occur. The data already in the literature on the response of the

micronucleus assay to RF are conflicting. Thus, follow-up research is necessary.2

English

78 U.S. Food and Drug Administration (FDA)

 

 

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Contents Introduction WelcomeKey Presses Other SymbolsUnderstanding this Manual Prompts and MessagesMenu Navigation Total Customer Satisfaction Contents Contents Antenna Care SafetyExposure to Radio Frequency Signals Phone OperationBatteries Driving Electronic DevicesBlasting Areas Posted FacilitiesAircraft Potentially Explosive AtmospheresEnglish About Your Phone and Battery Using the Smart ButtonPhone Overview Display Controlling VolumeTo adjust earpiece volume during a phone call Placing and Ending a CallImportant Battery Information Your BatteryInstalling the Batteries Charging a New BatteryBattery Performance and Maintenance Removing Your BatteriesCharging Your Battery Using the Travel Charger Low Battery Warning Battery IndicatorsBattery Meter Indicators Placing a Call Using Your PhonePlacing and Receiving Calls Ending a CallRedialing a Number If you hear a fast busy signalIf you hear an ordinary busy signal Muting the MicrophoneHow to Store Phone Numbers Using Phone MemoryUsing Your Phone’s Built-in Phone Book Storing Names and NumbersHow to Enter Letters and Numbers How to Enter a NameRecalling an Entry by Name Recalling an Entry by Memory LocationEditing a Memory Location Shortcuts for Recalling Phone Book Entries Using Speed DialClearing a Phone Memory Entry Clearing an Entry by NameEntering a Number in the Scratchpad Using the Turbo Dial FunctionMaking Notes on the Scratchpad Storing Numbers During a CallEnglish Introducing the Menu Features Using the Menu FeaturesUsing the Menu System You can also access the Menu Features by pressingManaging Recent Calls About Recent CallsDialed Reviewing Received Calls Reviewing Dialed Calls Clearing Caller Line IDPress R00to enter your dialed calls list Managing the Phone Book Recalling an Entry by Location Storing with the MenuStoring and Placing Numbers with Pause Dialing Entering a Pause in a NumberPlacing a Call with Pauses Storing and Placing Numbers for Calling Card Information Storing Calling Card InformationPlacing a Calling Card Call Attaching an Email Address to a Phone Book Entry Editing a Phone Book Entry Editing an Email AddressAssigning an Individual Ring Style to a Phone Book Entry Setting Time and Date TimeTurning Autoupdate On and Off Setting the TimeSetting the Date Changing Your Date FormatTiming Your Calls Viewing the Cumulative Timer Viewing the Individual Call TimerViewing the Resettable Call Timer Resetting the TimerDisplaying the Individual Timer Automatically Setting the One-Minute Audible TimerSetting the Repeating Audible Timer Setting the Single Timer Adjusting Tone Controls ControlTurning Message Alert On and Off Selecting a Ring StyleTurning Ringer On and Off Turning Keypad Tones On and OffUsing Lock/Security Features Locking and Unlocking Your Keypad Activating Voice PrivacyLocking Your Phone Manually Locking/Unlocking Your PhoneLocking Your Phone Automatically Unlocking Your PhoneChanging the Lock Code Activating Priority CallingViewing the Lock Code Press F, the Smart Button, 29, and continue with stepRestricting Call Placement Selecting a Service LevelService Level Settings Resetting All Options Clearing All Stored InformationAuthenticating Users This feature should only be programmed onceCustomizing Phone Options Viewing Your Own Number Activating Pager ModeSwitching Between Numbers Press RJfor a quick look at your phone numberCall Options Reviewing Feature SettingsAuto Answer does not work if Pager Mode is activated Activating Multiple Key AnswerDisplaying System Identification Selecting a LanguageSelecting a Network Performing a Manual Network SearchSelecting a Non-Public Network Selecting a Public NetworkNetwork ID Specifying an Automatic Search Viewing All Non-Public NetworksUsing the Message Center Editing the Voice Mail Number Voice Mail AlertsDialing Voice Mail From the Voice Mail Alert ScreenHow Your Phone Receives Message Alerts New Message Alerts Text Message IndicatorsReading and Managing Text Messages Reading Text MessagesMessage Options-Replying to a Message Message Options-Forwarding a Message Message Options-Viewing Message DetailsLocking and Unlocking a Message Clearing All Messages Clearing MessagesClearing the Current Message Initiating a Call BackSending Text Messages Storing a Call Back Number into the Phone BookSending a Message from the Message Center Sending a Message from the Phone Book To send a text message from your Phone BookSending, Creating, Editing, and Deleting Quick Notes Sending a Quick NoteCreating Quick Notes Editing Quick NotesDeleting Quick Notes Reading and Sending Draft Messages Reviewing Messages in Your OutboxOutbox Options-Resending a Message Outbox Options-Forwarding a Message Outbox Options-Viewing Message DetailsDeleting Unsent Messages from the Outbox Accessories English 74 Accessories What to do if Received an alternating high Food and Drug Administration FDA Why the concern?What kinds of phones are in question? 78 U.S. Food and Drug Administration FDA English 80 U.S. Food and Drug Administration FDA What is FDAs role concerning the safety of mobile phones?Where can I find additional information? Food and Drug Administration FDA Center for Devices82 U.S. Food and Drug Administration FDA Patent Information Manufactured under one or more of the following patentsOther patents pending Call timer IndexEnglish Scratchpad tones Wireline carrier
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