Nordic Mobile Telephone

NMT (Nordisk MobilTelefoni or Nordiska MobilTelefoni-gruppen, Nordic Mobile Telephony in English) is the first fully automatic cellular phone system. It was specified by Nordic telecommunications administrations (PTTs) and opened for service in 1 October 1981 as a response to the increasing congestion and heavy requirements of the manual mobile phone networks: ARP (150 MHz) in Finland and MTD (450 MHz) in Sweden and Denmark and OLT in Norway. Read more

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Motorola

Motorola, Inc.was an American multinational telecommunications company based in Schaumburg, Illinois, which was eventually divided into two independent public companies, Motorola Mobility and Motorola Solutions on January 4, 2011, after losing $4.3 billion from 2007 to 2009. Motorola Solutions is generally considered to be the direct successor to Motorola, Inc., as the reorganization was structured with Motorola Mobility being spun off. Read more

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Multimedia Messaging Service-MMS

Multimedia Messaging Service, or MMS, is a standard way to send messages that include multimedia content to and from mobile phones. It extends the core SMS (Short Message Service) capability that allowed exchange of text messages only up to 160 characters in length. Read more

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Bluetooth

Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances (using short-wavelength radio transmissions in the ISM band from 2400–2480 MHz) from fixed and mobile devices, creating personal area networks (PANs) with high levels of security. Created by telecoms vendor Ericsson in 1994, it was originally conceived as a wireless alternative to RS-232 data cables. It can connect several devices, overcoming problems of synchronization. Read more

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Customer proprietary network information

Customer proprietary network information (CPNI) is the data collected by telecommunications companies about a consumer's telephone calls. It includes the time, date, duration and destination number of each call, the type of network a consumer subscribes to, and any other information that appears on the consumer's telephone bill. Read more

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Mobile phone form factors

Mobile phones are designed with one of a variety of different form factors, depending on its functionality or aesthetic considerations. Read more

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Mobile phone features

The features of mobile phones are the set of capabilities, services and applications that they offer to their users. Low-end mobile phones are often referred to as feature phones, and offer basic telephony.Handsets with more advanced computing ability through the use of native software applications became known as smartphones. Read more

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Motorola Dyna TAC

DynaTAC is a series of cellular telephones manufactured by Motorola, Inc. from 1983 to 1994. The first model, the 8000x, received FCC certification in 1983, and became the first cell phone to be offered commercially when it went on sale on 6 March 1983. It offered 30 minutes of talk time and 8 hours of standby, and a LED display for dialling or recall of one of 30 phone numbers. It was priced at $3,995 in 1983. DynaTAC was an abbreviation of Dynamic Adaptive Total Area Coverage. Read more

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Professional mobile radio

Professional mobile radio (also known as private mobile radio (PMR) in the UK and land mobile radio (LMR) in North America) are field radio communications systems which use portable, mobile, base station, and dispatch console radios. Continue reading

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Open BTS

OpenBTS (Open Base Transceiver Station) is a software-based GSM access point, allowing standard GSM-compatible mobile phones to be used as SIP endpoints in Voice over IP (VOIP) networks. The public release of OpenBTS is notable for being the first free software implementation of the lower three layers of the industry-standard GSM protocol stack. Read more

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