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Topic: Cellular telephony

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	IEEC - Ericsson DH338 Digital Portable Cellular Phone
		Cellular communications technology was first conceived by ATandT in the late 1940s, and working prototypes were completed as early as the 1970s.
		Cellular phone sales are forecast to grow at more than 20% compound annual average growth rate until the end of the decade.
		A cellular phone is essentially a two-way radio transceiver that patches into the telephone system via a cellular network of base stations.
	www.ieec.binghamton.edu /ieec/teardown/ericsson_cellular_phone.htm (1241 words)

	Cellular Telephony
		When talking on a cellular phone, or even when using a normal phone and talking to somone on a cellular phone, the conversation is being broadcast, and can be easily intercepted.
		The average cellular phone is capable of doing a lot more than just being set up for service and used the way the cellular providers intend them to be.
		The newly programmed cellular phone can now be used as if it were the original, and any calls made on it would be billed to the person owning the valid phone with the ESN and MIN pair.
	users.dhp.com /~bishop/cellular.html (826 words)

	CHAPTER IV: THE CELLULAR TELEPHONE
		Cellular systems also facilitate the widespread use of portable mobile phones, as opposed to larger vehicle-mounted units that were the most common type of mobile unit in the pre-cellular era.
		In early cellular designs, it was assumed that it would be necessary to monitor the physical location of each mobile unit and assign it to the geographically nearest cell base station to prevent mobile units from interfering with other units in nearby cells.
		The case dealing with cellular telephony presented a challenge to the experiment in that the original technology was almost entirely developed by industrial research efforts and therefore had very limited visibility in terms of the open published literature.
	www.sri.com /policy/csted/reports/sandt/techin2/chp4.html (15655 words)

	Wireless Telephony - Cellular Telephone
		Cellular phones work by dividing the world, or at least the coverage area, into cells.
		Cellular telephony can be transmitted via analog or digital methods and operates at 800 MHz.
		Cellular Telephony licenses at 800 MHz were awarded via lottery in the early ‘80s.
	www2.hawaii.edu /~lian/com681/tutor/cellular.html (891 words)

	Cellular Telephony in Chile
		With the old system, the individual receiving a call on his or her cellular phone was required to pay per minute, generally the same rate as if he or she initiated the phone call.
		Telephony is a technology with network externality in the sense that its utility increases as more people use it, and it would appear that it will take a firm hold in the lifestyles of the new generation.
		The evidence elsewhere in the world is that means of communication such as cellular phones have democratizing effects (as in the case of People Power II in the Philippines), and its broad dissemination is therefore essential to the democracy project.
	www.zonalatina.com /Zldata294.htm (1214 words)

	Wireline & Wireless Telephony
		In wireless communications, cellular refers most basically to the structure of the wireless transmission networks which are comprised of cells or transmission sites.
		Cellular is also the name of the wireless telephone system originally developed by Bell Laboratories that used low-powered analog radio equipment to transmit within cells.
		The terms "cellular phone" or "cell phone" are used interchangeably to refer to wireless phones.
	www2.hawaii.edu /~lian/com681/tutor/glossary.html (1072 words)

	Cellular Telephone Basics
		No one knew; cellular instead was thought of as an evolution of early radio telephones, a better way to provide a few people with a telephone for their cars.
		Cellular service may be in 90% of urban areas, but it only reaches 30% to 40% of the geographical area of America.
		Cellular radio is like that, different ways to communicate but all having in common a distributed network of cell sites, the principle of frequency-reuse, handoffs, and so on.
	www.privateline.com /mt_cellbasics (16724 words)

	Mobile phone - Wikipedia, the free encyclopedia
		Most current mobile phones connect to a cellular network of base stations (cell sites), which is in turn interconnected to the public switched telephone network (PSTN) (the exception are satellite phones).
		Fully automatic cellular networks were first introduced in the early to mid 1980s (the 1G generation).
		When the cellular phone or data device is turned on, it registers with the mobile telephone exchange, or switch, with its unique identifiers, and will then be alerted by the mobile switch when there is an incoming telephone call.
	en.wikipedia.org /wiki/Cellular_telephony (2295 words)

	Cellular network - Wikipedia, the free encyclopedia
		A cellular network is a radio network made up of a number of radio cells (or just cells) each served by a fixed transmitter, known as a cell site or base station.
		Cellular networks are inherently asymmetric with a set of fixed main transceivers each serving a cell and a set of distributed (generally, but not always, mobile) transceivers which provide services to the network's users.
		The increased capacity in a cellular network, compared with a network with a single transmitter, comes from the fact that the same radio frequency can be reused in a different area for a completely different transmission.
	en.wikipedia.org /wiki/Cellular_network (2319 words)

	overview
		The Cellular IP distributed location management and routing algorithms lend themselves to a simple, efficient and low cost implementation for host mobility requiring no new packet formats, encapsulation or address space allocation beyond what is present in IP.
		Cellular networks offer a number of desirable features which if applied correctly could enhance the performance of future wireless IP networks without loosing any of the important flexibility, scalability and robustness properties that characterize IP networks.
		The Cellular IP gateway periodically broadcasts a beacon packet that is flooded in the access network.
	comet.columbia.edu /cellularip/overview.htm (2489 words)

	Cell phones, Home Phones, Business Phones, Cordless Phones and MORE!
		Cellular phones today are used for a multitude of different jobs.
		All new cellular telephones are built to accommodate these new frequencies, but old cellular telephones still work on the system.
		Hence, the most successful way of reactivating a cellular phone is to obtain an ID that is presently in use and modifying your rom/prom/eprom for your specific phone.
	www.phonewarehouse.com /sub/cellulartelephony.asp (4227 words)

	Cellular Cacophony (Site not responding. Last check: 2007-10-13)
		This is how, in the mid-80’s, the cellular telephone was unleashed on to the unsuspecting American public as a expensive status symbol and a must-have toy for the rich.
		When a subscriber of cellular company A, strays into the territory of cellular company of B, B uses the person as a blank check.
		This little feature is greatly beneficial to the bottom line of cellular operators who embraced this technology with such gusto that Qualcomm stock rose from a $50 to $200 in 6 months.
	cactus.eas.asu.edu /partha/Columns/01-22-Celular-01.htm (1639 words)

	TELEPHONY Online \| Intelligence for the broadband economy
		Telephony's Business Transformation supplement investigates how service providers are transforming their networks to optimize their businesses and operations.
		Telephony's Guide to IPTV uncovers the answers to these questions and dissects the competitive landscape of IP video.
		Telephony's Ask the Experts forums combine advice and solutions from reputable industry specialists on a myriad of technology and service subjects.
	telephonyonline.com (691 words)

	cellphone (Site not responding. Last check: 2007-10-13)
		In the late 1990s, cellular telephony is a very competitive business, with numerous producers and service providers coexisting in the limited market.
		Cellular phones were originally used primarily by businessmen for mobility and accessibility, but even teenagers now have them.
		Cellular phones can also be used for data transmission (circuit switched data and packet switched data), accessing the Internet and faxing.
	www-rcf.usc.edu /~wdutton/comm533/cellphone.html (1235 words)

	Telephony Design : Cellular & Wireless Networking Technology Guide (Site not responding. Last check: 2007-10-13)
		Cellular telephones have evolved from simple two-way radios into sophisticated handheld computing devices.
		Today's cellular telephone networks provide a bewildering array of options beyond basic voice telephone service.
		If you know of an article, website or vendor that should be listed here, send your tips to info@telephonydesign.com If you would like us to research your next telecom project, Contact Us to learn more about our research, consulting and procurement services.
	ptd.weblogger.com /cellular (190 words)

	CDMA - GSM \| Wirless and Cellular Technology \| Standards - Reference Page - BSMAP \| BSSAP \| BSSMAP \| BTSM \| CC \| DTAP ... (Site not responding. Last check: 2007-10-13)
		Though CDMA’s application in cellular telephony is relatively new, it is not a new technology.
		The codes are shared by both the mobile station (cellular phone) and the base station, and are called pseudo-random code sequences.
		CDMA is a digital multiple access technique and this cellular aspect of the protocol is specified by the Telecommunications Industry Association (TIA) as IS-95.
	www.protocols.com /pbook/cellular.htm (560 words)

	Specialized industry status granted to cellular telephony -DAWN - National; 29 January, 2004
		Under the new policy, cellular licensees would also be required to contribute towards research and development fund 0.5 per cent of their gross revenue and 1.5 per cent to universal service fund (USF).
		Two more mobile cellular licenses would be issued by the Pakistan Telecommunication Authority (PTA) for 15 years through open bidding for neutral technology like GSM and CDMA.
		The minister said the existing mobile service licence would be renewed as per provision of the new policy after the expiry of their existing licences.
	www.dawn.com /2004/01/29/nat15.htm (618 words)

	IEC: Cellular Communications
		Because the amount of frequency spectrum available for mobile cellular use was limited, efficient use of the required frequencies was needed for mobile cellular coverage.
		In modern cellular telephony, rural and urban regions are divided into areas according to specific provisioning guidelines.
		The term cellular comes from the honeycomb shape of the areas into which a coverage region is divided.
	www.iec.org /online/tutorials/cell_comm/topic03.html (665 words)

	Cellular POTS interface: CDMA version - IPS Group Inc.
		The IPS CDMA Cellular Interface has been especially developed for use in a wide range of classic telephony applications where no landlines exist or where these are simply too expensive to install and maintain.
		The IPS Cellular Module is fully compatible with IPS's range of Payphone Products and Management Systems, and can operate in voice, data and fax modes.
		The setup of the unit is simple, and it is equally simple to use — connect the antenna, the phone terminal equipment and plug in the power — and you are ready to connect.
	www.ipsgroupinc.com /products/Cellular/POTSinterface/CDMA/CDMA.htm (317 words)

	Robust Header Compression enables IP Telephony to Mobile Phones
		To make IP telephony over cellular radio systems an economically viable alternative to circuit-switched voice, it is an absolute requirement that the 40-octet IP/UDP/RTP headers of IP telephony packets are reduced in size to conserve bandwidth and expensive radio spectrum.
		With IP telephony gaining momentum and cellular telephony having several hundred million users, it seems inevitable that some future wireless telephony systems will be based on IP technology.
		It is vital for cellular phone systems to use the radio resources efficiently in order to support a sufficient number of users per cell.
	www.ercim.org /publication/Ercim_News/enw40/degermark2.html (863 words)

	Wi-Fi And Cellular Unite - News by InformationWeek
		Miller says he believes that cellular carriers will be quick to add dual-mode services to their offerings because they will help address customer complaints about poor cellular service inside corporate campuses.
		A partnership between Motorola, a leader in cellular and wireless technologies, and Cisco, a leader in IP technology, should be appealing to businesses, says Will Strauss, an analyst with research firm Forward Concepts.
		The dual-mode cellular system initially will be a large-enterprise play, Motorola's Miller says, but small and home offices and consumers eventually will be interested.
	www.informationweek.com /story/showArticle.jhtml?articleID=166403784 (532 words)

	Rediff On The Net, Infotech: Local cellular promoters are cashing out
		Equity changes have come through in quite a few cellular telephony projects - both in the metros and circles - and all this in the first couple of years of operations.
		Financiers to cellular telephony projects are keen that a 'handicap' by way of license fee be imposed on MTNL too.
		For several Indian promoters of cellular telephony, the writing on the wall is clear - only those with deep pockets will survive.
	www.rediff.com /computer/1998/jun/10cell.htm (1058 words)

	The Cell Phone Handbook
		Cellular phones have gone from a "gee whiz" curiosity to an indispensable communications link for more than 100 million U.S. subscribers.
		Traces the history of cellular phones, explains how wireless telephony works and how to acquire wireless equipment and service, and discusses the essentials of roaming, fraud, using wireless phones for data, and accessories.
		If you happen to be in the cellular industry then it is a great reference guide as it is also more than the basics.
	www.wirelesswhiz.com /book1.html (1608 words)

	SSRN-Usage and Diffusion of Cellular Telephony, 1998-2004 by Michal Grajek, Tobias Kretschmer
		SSRN-Usage and Diffusion of Cellular Telephony, 1998-2004 by Michal Grajek, Tobias Kretschmer
		In this paper, we study the dynamics of usage intensity of second-generation cellular telephony over the diffusion curve.
		Grajek, Michal and Kretschmer, Tobias, "Usage and Diffusion of Cellular Telephony, 1998-2004" (October 2006).
	papers.ssrn.com /sol3/papers.cfm?abstract_id=931389 (294 words)

	U.S. CELLULAR ENTERS CHICAGO MARKET WITH PRIMECO BUY
		Chicago will be U.S. Cellular's first foray into a large market and provides a big boost to the company's Midwest footprint.
		U.S. Cellular expects to close the acquisition by the third quarter of this year.
		Telephony is the leading publication for all communications service providers: new and incumbent, wireline and wireless.
	telephonyonline.com /mag/telecom_us_cellular_enters (749 words)

	Sucking the profits out of cellular telephony: IP takes aim at the high-margin game of short messaging America's ... (Site not responding. Last check: 2007-10-13)
		The outrage that is SMS pricing is now under assault from a new generation of Java developers who are marrying their applications with the price arbitrage advantage provided by cellular packet offerings such as GPRS and CDMA-1X.
		And a packet-based voice service that might enable communications at a fraction of the cost of cellular calls (especially at the international level) is likely to be a popular winner, even if only among the not insubstantial population of uber geeks.
		It seems that the great sucking sound of IP is about to be heard in the cellular telephony world.
	www.findarticles.com /p/articles/mi_m0DUJ/is_14_108/ai_n9505623 (687 words)

	Cellular telephony can now totally replace fixed lines (Site not responding. Last check: 2007-10-13)
		His company produces a cellular phone which looks and acts as if it were a fixed line handset.
		Consequently, the P23 is ideal for cellular refuseniks – particularly the elderly – since they don't even need to learn how to use the 'Send' button to make a call.
		Operators like Orange are starting to offer broadband to their existing cellular subscribers.
	www.theinquirer.net /?article=32332 (377 words)

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