Doctor Martin Cooper invented the modern cell phone. He invented the technology responsible for the cell phone when he was the Director of Research and Development at Motorola. Dr. Martin Cooper is also known as the first person to make a call on a cell phone. His revolutionary call took place in April of 1973 in New York. He is currently the CEO of an antenna corporation.The Cell Phone's Ancestors
The modern cell phone originated with Martin Cooper; however, in order to completely...
|
|
Read more...
|
The beginning history of cell phones is based upon radio technology that was developed from the 1940's onward. For instance the beginning of cell phones can be traced to the innovation in taxi cabs, police cars and other service vehicles where two way radios were used to communicate with one another or with a central base. Early cell phone communication technology could be even traced back to individuals with special radios that can patch into a phone line via live operator to make a...
|
|
Read more...
|
GSM phones are designed to be used with any network. However, some service providers electronically lock their phones when giving out special offers, gifts or discounted prices so that one has to stick to the particular provider. This can be to your disadvantage since you may have to pay very high roaming charges when you take your phone out of their network and use it elsewhere in the world. Fortunately, SIM locked phones can be reversed. The copyright office gave the green light to...
|
|
Read more...
|
BlackBerry's are sold by many wireless providers across the globe, including AT&T/Cingular, T-Mobile, Vodafone and Verizon.
When these companies sell a BlackBerry, they do so at a discount in order to attract customers. The providers then make up the lost profits over the lifetime of the contract signed by the customer.
To protect those profits, the wireless providers configure a "subsidy lock" into each BlackBerry. The subsidy lock prevents the BlackBerry from being...
|
|
Read more...
|
You often might have had the frustrating experience of the inability to talk on your cell phone due to weak signals in the so-called "cellular dead zones". What could you do in such situations? Cell Phone Signal Boosters Will Do the Magic!
Installing a cell phone signal booster will solve the problem for you! Also known as cellular repeaters or amplifiers, cell phone signal boosters will reduce the number of dropped calls and even help you extend your cell phone range. Long...
|
|
Read more...
|
GSM (Global System for Mobile communication) is a digital mobile telephone system that is widely used in Europe and other parts of the world. GSM uses a variation of Time Division Multiple Access (TDMA) and is the most widely used of the three digital wireless telephone technologies (TDMA, GSM, and CDMA). GSM digitizes and compresses data, then sends it down a channel with two other streams of user data, each in its own time slot. It operates at either the 900 MHz or 1,800 MHz frequency...
|
|
Read more...
|
Cell phone cloning refers to the act of copying the identity of one mobile telephone to another.
This is usually done to make fraudulent telephone calls. The bill for the calls go to the legitimate subscriber. This had made cloning very popular in areas with large immigrant populations, where the cost to "call home" was very steep. The cloner is also able to make effectively anonymous calls, which attracts another group of interested law-breakers.
Cell phone cloning started...
|
|
Read more...
|
Owning a Blackberry enables its owners to do much more than they could ever accomplish with a basic cell phone. However, one of the most popular features that have carried over from basic cell phone to the BlackBerry is the ability to add ring tones. In earlier models adding ring tones to your Blackberry was quite difficult or not available, however today, if you operate a BlackBerry or later model that uses 4.1 operating system, adding MP3 ring tones is quite simple, here are some tips. 1...
|
|
Read more...
|
The main mobile telephone systems in the last twenty five years have been:YearMobile Telephone System1981Nordic Mobile Telephone (NMT)1983Advanced Mobile Phone System (AMPS)1985Total Access Communication Systems (TACS)1986Nordic Mobile Telephony (NMT)1991American Digital Cellular (ADC)1991Global System for Mobile Communication (GSM)1992Digital Cellular System (DCS) 18001994Japanese Personal Digital Cellular (PDC)1995Personal Communications Service (PCS) 1900 - Canada1996Personal...
|
|
Read more...
|
IMEI is an acronym that stands for International Mobile Equipment Identity. Each GSM and UMTS mobile phone has a unique IMEI number. IMEI number facilitates an important function; it easily identifies a mobile phone being used on a GSM (Global System for Mobile Communications) network. The IMEI is a useful tool to stop a phone that is stolen from accessing a network and being used. Mobile phone owners that have their phones stolen can contact their mobile network provider and ask them to ban...
|
|
Read more...
|
|
|
|
|
Page 1 of 6 |
