Siemens TDMA 800, TDMA 1900 manual 101, What is FDAs role concerning the safety of mobile phones?

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31.5.02 10-S46 FDA.fm i 37 Am Engl, A31008-H4600-A2-1-19

U.S. FDA

101

 

In summary, we do not have enough information at this point to assure the public that there are, or are not, any low incident health problems associated with use of mobile phones. FDA continues to work with all parties, including other federal agencies and industry, to assure that research is undertaken to provide the necessary answers to the outstanding questions about the safety of mobile phones.

What is known about cases of human cancer that have been reported in users of hand-held mobile phones?

Some people who have used mobile phones have been diagnosed with brain cancer. But it is important to understand that this type of cancer also occurs among people who have not used mobile phones. In fact, brain cancer occurs in the U.S. population at a rate of about 6 new cases per 100,000 people each year. At that rate, assuming 80 million users of mobile phones (a number increasing at a rate of about 1 million per month), about 4800 cases of brain cancer would be expected each year among those 80 million people, whether or not they used their phones. Thus it is not possible to tell whether any individual's cancer arose because of the phone, or whether it would have happened anyway. A key question is whether the risk of getting a particular form of cancer is greater among people who use mobile phones than among the rest of the population. One way to answer that question is to compare the usage of mobile phones among people with brain cancer with the use of mobile phones among appropriately matched people without brain cancer. This is called a case-control study. The current case-control study of brain cancers by the National Cancer Institute, as well as the follow-up research to be sponsored by industry, will begin to generate this type of information.

What is FDA's role concerning the safety of mobile phones?

Under the law, FDA does not review the safety of radiation emitting consumer products such as mobile phones before marketing, as it does with new drugs or medical devices. However, the agency has authority to take action if mobile phones are shown to emit radiation at a level that is hazardous to the user. In such a case, FDA could require the manufacturers of mobile phones to notify users of the health hazard and to repair, replace or recall the phones so that the hazard no longer exists.

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Contents FCC/Industry Canada Notice Contents WAP Business Card Calculator Currency Converter Clock S46TOC.FM Safety Precautions Please observePhone operation Safety InformationAntenna care DrivingElectronic devices Blasting areas AirplanesEmergency Calls SAR Specific Absorption Rate SAR Specific Absorption Rate Overview of the phone Earpiece Soft keys Left side buttonsWeekly view Display SymbolsTransmission unencrypted Monthly viewEdit ViewSave DeleteGetting Started Before using your phoneAfter turning on your phone p Security/PIN Remove battery coverInsert SIM card Type of SIM cardCharge battery Insert batteryCharging Turn phone on Battery level indicator fully charged to emptyEmpty battery Standby and talk timesSIM problems Service providerSetMenu Phone settings Menu Navigation ‡ = Return If Message type, Validity period or Service center144 Meeting at 08a h G123 Recipient Send to GAbc SMS OptionsEnd call Making a CallDialing Accept callPrompt Busy signal RedialCall back Auto dialDuring a call Conference Swap/Conference ZPhone number memo Swap/3-way CallCall menu Send Dtmf tonesInternational Dialing Codes International CallingPlacing International Calls Activate Babysitter §Menu§ Setup Security BabysitterBabysitter Turn Babysitter offAddress Book New entryView and edit entries Address book Last name Einstein First name AlbertSearch for an entry Call an entryAddress book entry Synchronizing with Outlook Store control codeExtending numbers §Save§SIM Phone Book SIM phone book menuRecord Number To dial an entry using the record numberLocation Edit record numberProtected phone numbers Service numbers§OK§ Record voice controls Voice command for functionsVoice Control Apply voice controlsNew sample §Menu§ Office Voice control Voice dialing Or Voice commandNew record PlayRead Messages Text MessagingReply menu Archive Inbox/OutboxInbox/Outbox/Archive Menus Compose SMS §Menu§ Messages Use SMS sample Delay, Appointment or ThanksUse SMS sample 128Create new e-mail Text options menuSelect T9 text input Enter text using T9Text Entry Tips T9 Text Input ¡ ’ = % ~140 T9 word suggestionsWord correction At 08a we are eating F SpellMessage setup §Menu§ Call Forward SetupVoice Mailbox Call typeVoice Mailbox Cell Broadcast Z Cell broadcast messagesSIM services Cell Broadcast/SIM Services ZCB languages Storing graphics Bitmap viewerReceiving graphics Loading graphicsInternet access Start menu Example HomeBrowser menu MoreProfile settings ProfilesEdit E D Select Activate profileCommerce §Menu§ Surf & fun Internet ProfileEnter an Internet address URL Operating instructionsChanging the home BookmarksZCalls received Call InformationCalls missed Calls dialedLast call All calls §Menu§ Call info Call timerDuration Last call Calls dialed Remain. unitsSpecific Call Forward Call Forward ZAll calls Receiving fax§Select§ Status checkClear all ClearNew record Voice MemoRecording a memo Stop/Save§Menu§ Office Voice Memo Using the soft keysVoice memo menu §Options§ Open menu New record SelectAgenda Daily view OrganizerCalendar Apr2002 W16 29 B30New appointment AppointmentsAppointments menu §Menu§ Office Organizer Alarm clock Missed alarmsMissed alarms menu §Menu§ Office Organizer Missed alarms§Menu§ Office Business card Business CardBusiness card menu Tel./mobileCalculator 123 4567 Calculator61§Menu§ Office Calculator Calculator functionsEnter exchange rate Currency ConverterConvert Currency converter menuClock Countdown 64Stopwatch/CountdownStopwatch Stopwatch menuKey control Games65Game instructions §Menu§ Surf & fun GamesProfiles menu 66ProfilesActivate §Menu§ Profiles§Menu§ Profiles … Select Aircraft mode §Options§ Open menu Headset Aircraft modeActivate Aircraft mode ProfilesChange ResetFavorites ApplySet Fast Access KeysLeft soft key ChangeClear speed dialing key Speed dialing keysSet-up/Change Apply§Menu§ Setup Device Keys Emergency call Quick menu selection72Audio Ringer settingVolume MelodiesLoad AudioCompose melody Melody manager SaveKey tones Call screeningSilent alert Minute beepDevice Setup75§Menu§ Setup Device select a function LanguageKeys SetupStatus T9 inputCodes §Menu§ Setup Security Select a functionSecurity CodeCalls can be made only to a single OnlyCall list p of the last Dialed numbers Phone code protected PIN2 protectedNetwork Configuration§Menu§ Setup Network select a function Provider Select Options and DeleteUser settings §Menu§ Setup NetworkConfiguration BarringsUser group §Menu§ Setup During a call Select a functionOutgoing access Select groupSwitch Gprs off, Switch Gprs on 82Setup§Menu§ Setup Connectivity Select a function ConnectivitySerial Conn Setup83Gprs info WAP browserAccessoriesHeadset 84SetupCar Kit Flex Memory Flex memory menuXTNDConnect Sync software XTNDConnect Sync SoftwareFlexible memory Fax/data mode Fax/Data Mode Using a PCVoice/fax Print via IrDA 88Send/PrintSend via IrDATroubleshooting89 Problem Possible causes Possible solutionsTroubleshooting Charge counter Damage Siemens Service Exposure to radiofrequency signals 94SpecificationsDeclaration of conformity Specifications95 Technical dataPhone ID 96MaintenanceMaintenance tips Lost phoneAccessories Why the concern? What kinds of phones are in question?31.5.02 10-S46 FDA.fm i 37 Am Engl, A31008-H4600-A2-1-19 100 What is FDAs role concerning the safety of mobile phones? 101102 Where can I find additional information? 103Ten Driving Safety Tips 104105 106 Intellectual PropertyIntellectual Property Restrictions Index107 108Index Call records109 Phone identity numbers Imei110 SMS

GSM 900, GSM 1900, TDMA 1900, TDMA 800 specifications

Siemens is a renowned telecommunications equipment manufacturer known for its innovative solutions in mobile communication. Among its notable contributions are the TDMA 800, TDMA 1900, GSM 900, and GSM 1900 systems. These technologies have played a significant role in shaping mobile telephony, particularly during the late 20th century.

TDMA, or Time Division Multiple Access, is a digital transmission protocol that allows multiple users to share the same frequency channel by dividing the signal into time slots. The Siemens TDMA 800 operates in the 800 MHz frequency band, which is ideal for regional mobile communication. Its main features include improved call quality, greater capacity, and effective handover capabilities. This system was particularly popular in the United States, where it formed the backbone of early digital cellular networks.

On the other hand, the TDMA 1900 operates in the 1900 MHz band, catering to urban areas with higher population densities. This system further enhances voice clarity and offers faster data transmission speeds. Its key characteristics include support for features such as call waiting, caller ID, and enhanced voice privacy, making it suitable for modern telecommunication needs.

GSM, or Global System for Mobile Communications, is another critical technology developed by Siemens. The GSM 900 operates at 900 MHz and is one of the most widely adopted mobile standards globally. Its contributions to the communication landscape include superior frequency reuse, allowing for a greater number of simultaneous calls. The GSM 900 also supports various services beyond voice calls, including SMS (Short Message Service) and basic data transmission.

Meanwhile, GSM 1900, which functions in the 1900 MHz frequency band, is predominantly used in North America. This technology shares many features with GSM 900, but it accommodates a larger number of channels per frequency unit due to its higher frequency. The GSM 1900 system has been critical in facilitating the growth of mobile data services, providing a solid foundation for the evolution of mobile internet access.

Overall, Siemens' TDMA and GSM technologies have significantly influenced the development of mobile telecommunications. With features focused on capacity, flexibility, and quality, these systems established the groundwork for the advanced mobile networks we rely on today. Their legacy continues to be seen in the current generation of wireless technologies, highlighting the importance of innovation in the telecommunications industry.
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