PocketNet was generally considered a failure with competition from 2G services such as Sprint's Wireless Web.

The GPRS core network allows 2G, 3G and WCDMA mobile networks to transmit IP packets to external networks such as the Internet.

TDMA is used in the digital 2G cellular systems such as Global System for Mobile Communications ( GSM ), IS-136, Personal Digital Cellular ( PDC ) and iDEN, and in the Digital Enhanced Cordless Telecommunications ( DECT ) standard for portable phones.

The use of this technology also gives room for expansions, such as from 2G to 3G and, most recently, 4G technology, which stands for fourth generation of cell phone mobile communications standards.

TDMA and GSM networks such as T-Mobile 2G use TDOA.

It is a 2G mobile telecommunications standard that uses CDMA, a multiple access scheme for digital radio, to send voice, data and signaling data ( such as a dialed telephone number ) between mobile telephones and cell sites.

This definition includes broadcasting systems such at digital TV and digital radio broadcasting, but also two-way digital radio standards such as the second generation ( 2G ) cell-phones and later, short-range communication such as digital cordless phones, wireless computer networks, digital micro-wave radio links, deep space communication systems such as communications to and from the two Voyager space probes, etcetera.

2G has been superseded by newer technologies such as 2. 5G, 2. 75G, 3G, and 4G ; however, 2G networks are still used in many parts of the world.

A media gateway is a translation device or service that converts digital media streams between disparate telecommunications networks such as PSTN, SS7, Next Generation Networks ( 2G, 2. 5G and 3G radio access networks ) or PBX.

The GPRS core network is the central part of the general packet radio service ( GPRS ) which allows 2G, 3G and WCDMA mobile networks to transmit IP packets to external networks such as the Internet.

CSD is commonly used in the UK for early smart metering deployments and as such there are no real plans to decommision or remove access to this part of the 2G network.

Cell size flexibility is a feature of 2G ( and later ) networks and is a significant part of how such networks have been able to improve capacity.

# A commonly open wireless network, such as the existing 2G and 3G networks, for communication between the portable device and the server containing the information linked to the tagged object.

GSM ( Global System for Mobile Communications, originally ), is a standard set developed by the European Telecommunications Standards Institute ( ETSI ) to describe protocols for second generation ( 2G ) digital cellular networks used by mobile phones.

General packet radio service ( GPRS ) is a packet oriented mobile data service on the 2G and 3G cellular communication system's global system for mobile communications ( GSM ).

Earlier this year, Wana sold a 31 % stake for € 228m to the partnership of two Kuwaiti companies, mobile operator Zain and Al Ajial Investment Fund Holding, to help finance the roll out of its 15-year 2G GSM network at the end of 2009.

Between 2007 and 2009 all three Finnish carriers begun to use 900 MHz UMTS in a shared arrangement with its surrounding 2G GSM base stations for rural area coverage, a trend that is expected to expand over Europe in the next 1 – 3 years.

Another competitor to UMTS is EDGE ( IMT-SC ), which is an evolutionary upgrade to the 2G GSM system, leveraging existing GSM spectrums.

In July 2010, Stevenson published information about vulnerabilities in the A5 / 1 encryption algorithm used by most 2G GSM networks, and also showed the Kraken software, that demonstrates that the crypto indeed can be broken with modest hardware.

Unlike TDMA " time division multiple access ", a competing system used in 2G GSM, all radios can be active all the time, because network capacity does not directly limit the number of active radios.

* the UMTS system, first offered in 2001, standardized by 3GPP, used primarily in Europe, Japan, China ( however with a different radio interface ) and other regions predominated by GSM 2G system infrastructure.

Second generation 2G cellular telecom networks were commercially launched on the GSM standard in Finland by Radiolinja ( now part of Elisa Oyj ) in 1991.

* 2G GSM 900 / 1800 MHznetwork in all states.

While not an evolutionary upgrade on the airside, it uses the same core network as the 2G GSM networks deployed worldwide, allowing dual mode mobile operation along with GSM / EDGE ; a feat it shares with other members of the UMTS family.

Etihad Etisalat, a consortium led by Etisalat, won the 2G GSM license by offering US $ $ 3. 25 billion.

AT & T, along with Verizon Wireless, has chosen to migrate toward LTE from 2G / GSM and 3G / HSPA by 2011.

The BTSs are equipped with radios that are able to modulate layer 1 of interface Um ; for GSM 2G + the modulation type is Gaussian minimum-shift keying ( GMSK ), while for EDGE-enabled networks it is GMSK and 8-PSK.

The company's 2G GSM network with EDGE serves 95 % of the Canadian population.

It offers 2G GSM, 2. 5G GPRS, 3G UMTS 3. 5G HSDPA and 3. 75G HSPA + with a maximum speed of 28Mbit / s in Amsterdam, The Hague and Rotterdam, other city's were scheduled to get an update during the summer of 2010.

This is the terminology of 2G systems like GSM.

The Nokia 6630 is the first phone ever that allows truly global roaming ; previously GSM phones have had near-global coverage except in Japan where 2G phone standards were different.

* General 2G Network GSM 900 / 1800 / 1900

The operator's display logo is PROXIMUS, the net code is 206 01 and operates under GSM 900 / 1800 ( 2G GSM ) net and W-CDMA 2100 ( 3G UTMS ) frequencies.

As of September 2012, SK Telecom operates 2G IS-95 / CDMA 2000, 3G WCDMA / HSPA +, 4G Mobile WiMAX, and LTE network.

In practice, 3GPP2 is the standardization group for CDMA2000, the set of 3G standards based on earlier 2G CDMA technology.

Nevertheless, slow data speeds in the GSM and CDMA areas which had 1 and 2G technology, prevented the economic download of music data through networks in comparison with media sites to a computer.

* Digital AMPS ( IS-54 and IS-136 ), a 2G mobile-phone standard that uses Time division multiple access

* Cellular networks: 0G, 1G, 2G, 3G, Beyond 3G ( 4G ), Future wireless

One night, on a local street racing gathering, he enters his modified 1995 Mitsubishi Eclipse 2G RS 420A into an illegal race with Dominic Toretto ( Vin Diesel ), Edwin ( Ja Rule ) and Ryo ( RyoTheRapper ) bartering the pink slips, due that he doesn't have enough money to bet in the race, asking for cash and respect if he wins the race.

Wi-MAX ( 4G ), 3G / HSDPA / 2G mobile facilities are served by Globe, Smart and Sun Cellular.

TU-KA ( TU-KA by KDDI ), a subsidiary company of KDDI, was a 2G PDC cellular operator in three metropolitan areas ( Tokyo, Nagoya, and Osaka ), which did not apply a 3G license.

In 2005 the Jersey Competition Regulatory Authority ( JCRA ), the Jersey Telecommunications Regulator, in cooperation with Ofcom, the UK telecommunications authority with responsibility for spectrum allocation in the Channel Islands under the Communications Act 2003 and Wireless Telegraphy Act 2006 extended by Order in Council, allotted a 3G spectrum license to JT and 2G and 3G spectrum licenses to Cable and Wireless Jersey, Jersey Airtel and COLT Telecom Group plc to operate mobile services in Jersey.

It first appeared in Release 5 ( evolution from 2G to 3G networks ), when SIP-based multimedia was added.

Nokia says the Nokia 6630 is the first dual-mode, tri-band handset designed to work on 3G ( WCDMA ), EDGE and 2G networks in Europe, Asia and the Americas.

It offers GSM 900 / 1800 MHz ( 2G ), UMTS 850 & 1900 MHz ( 3G ) and HSDPA ( 3. 5G ) services.

Variations of this codec have been used in several 2G cellular telephony standards, including IS-54, IS-136 ( D-AMPS ), GSM ( Half Rate speech ) and iDEN.

Orange offers GSM 900 / 1800 MHz ( 2G ), UMTS 2. 1Ghz ( 3G ) services and HSDPA ( 3. 5G ) services.

Vodafone ( Vodafone ES ) offers GSM900 / 1800 MHz ( 2G ), UMTS ( 3G ) and HSDPA ( 3. 5G ) services in Spain, with a good coverage.