GSM is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation (2G) digital cellular networks used by mobile devices such as mobile phones and tablets. It was first deployed in Finland in December 1991. As of 2014, it has become the global standard for mobile communications – with over 90% market share, operating in over 193 countries and territories.
SMS is a text messaging service component of most telephone, internet, and mobile-device systems. It uses standardized communication protocols to enable mobile devices to exchange short text messages. An intermediary service can facilitate a text-to-voice conversion to be sent to landlines.
SMS was the most widely used data application at the end of 2010, with an estimated 3.5 billion active users, or about 80% of all mobile subscribers.
The Universal Mobile Telecommunications System (UMTS) is a third generation mobile cellular system for networks based on the GSM standard. Developed and maintained by the 3GPP, UMTS is a component of the International Telecommunications Union IMT-2000 standard set and compares with the CDMA2000 standard set for networks based on the competing cdmaOne technology. UMTS uses wideband code division multiple access (W-CDMA) radio access technology to offer greater spectral efficiency and bandwidth to mobile network operators.
A subscriber identity module or subscriber identification module (SIM), widely known as a SIM card, is an integrated circuit that is intended to securely store the international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephony devices. It is also possible to store contact information on many SIM cards. SIM cards are always used on GSM phones; for CDMA phones, they are only needed for newer LTE-capable handsets. SIM cards can also be used in satellite phones, smart watches, computers, or cameras.
Roaming is a wireless telecommunication term typically used with mobile devices. It refers to the mobile phone being used outside the range of its home network and connects to another available cell network.
The Nokia 6230 is a mobile phone based on the Nokia Series 40 platform. It was announced on 28 October 2003 and released in February 2004.
The Sony Ericsson T610, released in 2003, is a mobile phone manufactured by Sony Ericsson. It was one of the first widely available mobile phones to include a built-in digital camera, Bluetooth, color screen, joystick navigation, and was a very high selling model.
GSM frequency bands or frequency ranges are the cellular frequencies designated by the ITU for the operation of GSM mobile phones and other mobile devices.
Vodafone New Zealand is a telecommunications company operating in New Zealand; it is a subsidiary of the London-listed company Vodafone Plc. It is New Zealand's largest mobile phone operator, based in Auckland, and was formed in 1998, after Vodafone purchased BellSouth's New Zealand operations. The company employs over 3,000 people and has operations nationwide, with its main offices based in Auckland, Wellington and Christchurch. The company is part of New Zealand Telecommunications Forum.
The features of mobile phones are the set of capabilities, services and applications that they offer to their users. Mobile phones are often referred to as feature phones, and offer basic telephony. Handsets with more advanced computing ability through the use of native code try to differentiate their own products by implementing additional functions to make them more attractive to consumers. This has led to great innovation in mobile phone development over the past 20 years.
The Sony Ericsson W900i is a 3G/audio player manufactured by Sony Ericsson. The display of the device is a 240×320 pixel 262,000 color 2.1-inch TFT QVGA screen. It has a swivel form factor, which makes the W900 larger than many other phones when folded open.
In addition to the 470 MB of internal flash memory, it also supports the Memory Stick PRO Duo as external memory. It has class 10, 32–48 kbit/s GPRS.
The W900 can achieve data transfer rates of 384 kbit/s due to its 3G technology. It also includes Bluetooth, a 2-megapixel digital camera with auto-focus and the ability to take QVGA video at 30 frame/s supplemented by a second VGA camera used for video calling and self-portraits and most advertised of all, its ability to play MP3 audio files in Walkman mode for up to 30 hours and its ability to play long length MPEG-4 videos.
When using the W900i as a phone, the standby time is up to 379 hours and talktime of up to 8 hours and 40 minutes. Its dimensions are 109 mm × 24 mm × 49 mm and its weight is 148 g (5.2 oz). It also has an internal NVIDIA GoForce 4800 graphics processor and was bundled with the HPM-80 headset.
The Sony Ericsson K800i, and its variant, the Sony Ericsson K790, are mobile phone handsets manufactured by Sony Ericsson. Launched in July 2006, the phones are the successor to the Sony Ericsson K750i. Both of the phones feature a 3.2-megapixel digital camera complete with a xenon flash, a protective lens cover, and a new "BestPic" bracketing feature, and are the first to be tagged with the Sony Cyber-shot branding. The new "BestPic" feature takes 9 full quality snapshots of a subject in quick succession, allowing the user to choose the best shots from them. On the entertainment front, the phones have a media player supporting MP3, AAC/AAC+/eAAC+ and WMA music files and 3GP/MPEG-4 video files. The phones also feature a RDS FM radio, and a Memory Stick Micro (M2) slot for expandable solid state memory. The K790/K800 models are also the first Sony Ericsson mobile phones to use ATI's Imageon 2192 graphics engine, which delivers a full 3D gaming graphics for Java and full support for its 3.2-megapixel camera. It is the phone used by James Bond in the 2006 Casino Royale film and trailers.
Libyana Mobile Phone is a Libyan mobile phone company established in 2004. It is one of the two major mobile phone operators owned by the Libyan Post Telecommunications & Information Technology Company (LPTIC).
The Ericsson T28s is a GSM dual-band, compact flip mobile phone manufactured by Swedish telecoms company Ericsson Mobile Communications in 1999.
The Xperia X1 is a high-end smartphone from Sony Ericsson, and is the first in the manufacturer's Xperia series. The phone was designed and built by Taiwanese OEM HTC. The X1 was first presented at the 2008 Mobile World Congress.
In telecommunications, a multi-band device is a communication device that supports multiple radio frequency bands. All devices which have more than one channel use multiple frequencies; a band however is a group of frequencies containing many channels. Multiple bands in mobile devices support roaming between different regions where different standards are used for mobile telephone services. Where the bands are widely separated in frequency, parallel transmit and receive signal path circuits must be provided, which increases the cost, complexity and power demand of multi-band devices.
SunComm Technology is a Taiwan multinational computer technology and GSM Voice over IP gateway manufacturer. The main products in 2010 focused on GSM VoIP gateways & IP surveillance camera devices. Core members have been engaging in the communication & networks industry since 1977.
Cellular frequencies are the sets of frequency ranges within the ultra high frequency band that have been assigned for cellular-compatible mobile devices, such as mobile phones, to connect to cellular networks. Most mobile networks worldwide use portions of the radio frequency spectrum, allocated to the mobile service, for the transmission and reception of their signals. The particular bands may also be shared with other radiocommunication services, e.g. broadcasting service, and fixed service operation.
The Samsung SGH-U900 is a slider mobile phone from Samsung Telecommunications. It was introduced at Mobile World Congress on 11 February 2008. It is a member of Samsung's fashion-focused "Ultra" line of handsets and the company's flagship at the time.
