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GSM

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82: 3533: 233: 303: 5003: 5013: 586: 527: 4992: 3522: 5023: 897:, a term referring to inexperienced individuals utilizing readily available hardware and software. The vulnerability arises from the accessibility of tools such as a DVB-T TV tuner, posing a threat to both mobile and network users. Despite the term "script kiddies" implying a lack of sophisticated skills, the consequences of their attacks on GSM can be severe, impacting the functionality of 34: 826: 912:(USIM), that uses a longer authentication key to give greater security, as well as mutually authenticating the network and the user, whereas GSM only authenticates the user to the network (and not vice versa). The security model therefore offers confidentiality and authentication, but limited authorization capabilities, and no 1081:
The original GSM implementations from 1991 may now be entirely free of patent encumbrances, however patent freedom is not certain due to the United States' "first to invent" system that was in place until 2012. The "first to invent" system, coupled with "patent term adjustment" can extend the life of
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Nohl said that he was able to intercept voice and text conversations by impersonating another user to listen to their voice mails or make calls or send text messages. Even more troubling was that he was able to pull this off using a seven-year-old Motorola cellphone and decryption software available
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GSM networks operating in the 900 MHz or 1800 MHz bands. Where these bands were already allocated, the 850 MHz and 1900 MHz bands were used instead (for example in Canada and the United States). In rare cases the 400 and 450 MHz frequency bands are assigned in some countries
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with distributed indoor antennas fed through power splitters – to deliver the radio signals from an antenna outdoors to the separate indoor distributed antenna system. Picocells are typically deployed when significant call capacity is needed indoors, as in shopping centers or airports. However, this
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The first public cryptanalysis of GEA/1 and GEA/2 (also written GEA-1 and GEA-2) was done in 2021. It concluded that although using a 64-bit key, the GEA-1 algorithm actually provides only 40 bits of security, due to a relationship between two parts of the algorithm. The researchers found that this
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is installed on a mast or a building above average rooftop level. Micro cells are cells whose antenna height is under average rooftop level; they are typically deployed in urban areas. Picocells are small cells whose coverage diameter is a few dozen meters; they are mainly used indoors. Femtocells
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GSM, for the first time, set a common standard for Europe for wireless networks. It was also adopted by many countries outside Europe. This allowed subscribers to use other GSM networks that have roaming agreements with each other. The common standard reduced research and development costs, since
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Patents remain a problem for any open-source GSM implementation, because it is not possible for GNU or any other free software distributor to guarantee immunity from all lawsuits by the patent holders against the users. Furthermore, new features are being added to the standard all the time which
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conditions – from a couple of hundred meters to several tens of kilometers. The longest distance the GSM specification supports in practical use is 35 kilometres (22 mi). There are also several implementations of the concept of an extended cell, where the cell radius could be double or even
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and is implemented by a software feature of the phone. A subscriber may usually contact the provider to remove the lock for a fee, utilize private services to remove the lock, or use software and websites to unlock the handset themselves. It is possible to hack past a phone locked by a network
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are used for ensuring over-the-air voice privacy. A5/1 was developed first and is a stronger algorithm used within Europe and the United States; A5/2 is weaker and used in other countries. Serious weaknesses have been found in both algorithms: it is possible to break A5/2 in real-time with a
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to develop and deploy a common cellular telephone system across Europe, and EU rules were passed to make GSM a mandatory standard. The decision to develop a continental standard eventually resulted in a unified, open, standard-based network which was larger than that in the United States.
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estimated in 2011 that technologies defined in the GSM standard served 80% of the mobile market, encompassing more than 5 billion people across more than 212 countries and territories, making GSM the most ubiquitous of the many standards for cellular networks.
413:(GPRS) services were launched and the first GPRS-compatible handsets became available for sale. In 2001, the first UMTS (W-CDMA) network was launched, a 3G technology that is not part of GSM. Worldwide GSM subscribers exceeded 500 million. In 2002, the first 1086:
will be able to implement features of that initial specification without limit. As patents subsequently expire, however, those features can be added into the open-source version. As of 2011, there have been no lawsuits against users of OpenBTS over GSM use.
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containing a user's subscription information and phone book. This allows users to retain their information after switching handsets. Alternatively, users can change networks or network identities without switching handsets - simply by changing the SIM.
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In February 1987 Europe produced the first agreed GSM Technical Specification. Ministers from the four big EU countries cemented their political support for GSM with the Bonn Declaration on Global Information Networks in May and the GSM
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In 1995 fax, data and SMS messaging services were launched commercially, the first 1900 MHz GSM network became operational in the United States and GSM subscribers worldwide exceeded 10 million. In the same year, the
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GSM is a second-generation (2G) standard employing time-division multiple-access (TDMA) spectrum-sharing, issued by the European Telecommunications Standards Institute (ETSI). The GSM standard does not include the 3G
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for their "leadership in the development of the first international mobile communications standard with subsequent evolution into worldwide smartphone data communication". The GSM (2G) has evolved into 3G, 4G and 5G.
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In this short 38-week period the whole of Europe (countries and industries) had been brought behind GSM in a rare unity and speed guided by four public officials: Armin Silberhorn (Germany), Stephen Temple (UK),
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Ntantogian, Christoforos; Valtas, Grigoris; Kapetanakis, Nikos; Lalagiannis, Faidon; Karopoulos, Georgios; Xenakis, Christos (2015), Fischer-HĂĽbner, Simone; Lambrinoudakis, Costas; LĂłpez, Javier (eds.),
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Before GSM, Europe had a disastrous mishmash of national analogue standards in phones and TV, designed to protect national industries but instead creating fragmented markets vulnerable to big guns from
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Before GSM, Europe had a disastrous mishmash of national analogue standards in phones and TV, designed to protect national industries but instead creating fragmented markets vulnerable to big guns from
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making a test call just a couple of hours earlier. "World's first GSM call was actually made by me. I called Marjo Jousinen, in Salo.", Lonka informed. The following year saw the sending of the first
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shut down its 2G GSM network on 1 December 2016, the first mobile network operator to decommission a GSM network. The second mobile provider to shut down its GSM network (on 1 January 2017) was
901:. Given that GSM continues to be the main source of cellular technology in numerous countries, its susceptibility to potential threats from malicious attacks is one that needs to be addressed. 390:
Work began in 1991 to expand the GSM standard to the 1800 MHz frequency band and the first 1800 MHz network became operational in the UK by 1993, called the DCS 1800. Also that year,
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Tasan 30 vuotta sitten Esplanadin puistossa tehtiin historiaa. Kulisseissa vaikutti Nokian nykyinen toimitusjohtaja Pekka Lundmark. Hän uskoo, että seuraava murros kestää ainakin 10 vuotta.
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The researchers revealed flaws in the commonly used GEA/1 and GEA/2 (standing for GPRS Encryption Algorithms 1 and 2) ciphers and published the open-source "gprsdecode" software for
1303: 2012:, Proceedings of the 2nd IEEE International Conference on Next Generation Mobile Applications, Services, and Technologies (NGMAST2008), pp.576–581, Cardiff, UK, September 2008, 154:
in December 1991. By the mid-2010s, it became a global standard for mobile communications achieving over 90% market share, and operating in over 193 countries and territories.
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relationship was very unlikely to have happened if it was not intentional. This may have been done in order to satisfy European controls on export of cryptographic programs.
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GPRS networks. They also noted that some carriers do not encrypt the data (i.e., using GEA/0) in order to detect the use of traffic or protocols they do not like (e.g.,
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to squeeze 3.1 kHz audio into between 7 and 13 kbit/s. Originally, two codecs, named after the types of data channel they were allocated, were used, called
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was tabled for signature in September. The MoU drew in mobile operators from across Europe to pledge to invest in new GSM networks to an ambitious common date.
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GSM was designed principally for voice telephony, but a range of bearer services was defined...allowing circuit-switched data connections at up to 9600 bits/s.
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The task was entrusted to a committee known as Groupe Spécial Mobile (GSMTM), aided by a "permanent nucleus" of technical support personnel, based in Paris.
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1982 Groupe Speciale Mobile (GSM) is formed by the Confederation of European Posts and Telecommunications (CEPT) to design a pan-European mobile technology.
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Since 2000, different efforts have been made in order to crack the A5 encryption algorithms. Both A5/1 and A5/2 algorithms have been broken, and their
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here's what had to say to solve the mystery: ' three in the home network and one roaming client.' There you go, an answer from the prime source!
3496: 278: 124: 1835: 890:, and over-the-air encryption. However, GSM is vulnerable to different types of attack, each of them aimed at a different part of the network. 424:
By 2005 GSM networks accounted for more than 75% of the worldwide cellular network market, serving 1.5 billion subscribers. In 2005, the first
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The GSM logo is used to identify compatible devices and equipment. The dots symbolize three clients in the home network and one roaming client.
3648: 3611: 3376: 2009: 462: 436:(HSPA) and its uplink and downlink versions are 3G technologies, not part of GSM.) Worldwide GSM subscribers exceeded three billion in 2008. 359: 4975: 4947: 4942: 3967: 3653: 3388: 2948: 1860: 1794: 1747: 1570: 1882: 1307: 3696: 2675: 2141: 905: 454: 421:(EDGE) services first became operational in a network in 2003, and the number of worldwide GSM subscribers exceeded 1 billion in 2004. 3934: 3326: 3300: 1672:
Harri Holkeri made the first call on the Radiolinja (Elisa's subsidiary) network, at the opening ceremony in Helsinki on 07.01.1991.
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connection. Umbrella cells are used to cover shadowed regions of smaller cells and to fill in gaps in coverage between those cells.
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The coverage area of each cell varies according to the implementation environment. Macro cells can be regarded as cells where the
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is not a prerequisite, since indoor coverage is also provided by in-building penetration of radio signals from any nearby cell.
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networks in Europe operate in the 2100 MHz frequency band. For more information on worldwide GSM frequency usage, see
4101: 1463: 5026: 4959: 4805: 3628: 2993: 2572: 658: 1336:"GSM BRANDS Trademark of GSM Sales LLC - Registration Number 5523328 - Serial Number 87703883 :: Justia Trademarks" 236:
Thomas Haug (first GSM president) and Philippe Dupuis (second GSM president) during a GSM meeting in Belgium, April 1992
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connect to it by searching for cells in the immediate vicinity. There are five different cell sizes in a GSM network:
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TDMA noise is interference that can be heard on speakers near a GSM phone using TDMA, audible as a buzzing sound.
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Christof Beierle; et al. (18 June 2021). "Cryptanalysis of the GPRS Encryption Algorithms GEA-1 and GEA-2".
1217: 555: 277:(France), and Renzo Failli (Italy). In 1989 the Groupe Spécial Mobile committee was transferred from CEPT to the 4716: 3706: 3407: 1168:– Unstructured Supplementary Service Data: list of all standard GSM codes for network and SIM related functions 406:
formed. Pre-paid GSM SIM cards were launched in 1996 and worldwide GSM subscribers passed 100 million in 1998.
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became the first network operator to deploy a GSM network outside Europe and the first practical hand-held GSM
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attack. The system supports multiple algorithms so operators may replace that cipher with a stronger one.
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In 1983, work began to develop a European standard for digital cellular voice telecommunications when the
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LTE-3GPP.info: online GSM messages decoder fully supporting all 3GPP releases from early GSM to latest 5G
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completed the shut down of its 2G GSM network on 1 August 2017, part of the Optus GSM network covering
286: 274: 1108: 1004:, users will be protected in the medium term, though migration to 128-bit GEA/4 is still recommended. 809:(EFR) codec, a 12.2 kbit/s codec that uses a full-rate channel. Finally, with the development of 417:(MMS) was introduced and the first GSM network in the 800 MHz frequency band became operational. 4637: 4598: 4443: 4343: 4272: 4205: 4032: 3902: 2856: 1959: 567: 1824: 4996: 4238: 4173: 4126: 4086: 3897: 3526: 3356: 3118: 3112: 3106: 3055: 3023: 2625: 1066: 1062:
developers intend to replace the proprietary baseband GSM stack with a free software implementation
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GSM was intended to be a secure wireless system. It has considered the user authentication using a
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frame. Half-rate channels use alternate frames in the same timeslot. The channel data rate for all
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proposed reserving the 900 MHz spectrum band for GSM. It was long believed that the former
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a U.S. patent far beyond 20 years from its priority date. It is unclear at this time whether
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for individual phones. This allows eight full-rate or sixteen half-rate speech channels per
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Motorola Demonstrates Long Range GSM Capability – 300% More Coverage With New Extended Cell
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GSM supports indoor coverage – achievable by using an indoor picocell base station, or an
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restrict handsets that they sell for exclusive use in their own network. This is called
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From GSM to LTE-Advanced : An Introduction to Mobile Networks and Mobile Broadband
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hardware and software could be sold with only minor adaptations for the local market.
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Donald, Ene; Favour, Osagie Nosa (October 2016). "Analysing GSM Insecurity".
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The GSM systems and services are described in a set of standards governed by
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Redl, Siegmund M.; Weber, Matthias K.; Oliphant, Malcolm W (February 1995).
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The transmission power in the handset is limited to a maximum of 2 watts in
4708: 4548: 4493: 4423: 4388: 4323: 4222: 4212: 4064: 3466: 3213: 3197: 2830: 2550:—Official industry trade group representing GSM network operators worldwide 2201:"Bombshell Report Finds Phone Network Encryption Was Deliberately Weakened" 2038:, vol. 9264, Cham: Springer International Publishing, pp. 73–86, 1276: 1124: 955: 669: 646: 535: 395: 1986:"iPhone Must Be Offered Without Contract Restrictions, German Court Rules" 1424: 4908: 4558: 4468: 4453: 4413: 4373: 4232: 3295: 3244: 3154: 3142: 2465:
Redl, Siegmund M.; Weber, Matthias K.; Oliphant, Malcolm W (April 1998).
1603: 375: 282: 2227:. Lecture Notes in Computer Science. Vol. 12697. pp. 155–183. 734:
Regardless of the frequency selected by an operator, it is divided into
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used by mobile devices such as mobile phones and tablets. GSM is also a
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Research findings indicate that GSM faces susceptibility to hacking by
842: 613: 355: 257: 136: 2921: 2028: 4898: 4363: 4178: 3945: 3848: 2273:"Flaw in old mobile phone encryption code could be used for snooping" 1361:"GSM Audio Codec: Vocoder: AMR, CELP etc .. Â» Electronics Notes" 1252: 1246: 1119: 1058: 971: 794: 790: 635: 625: 620: 590: 515: 503: 487: 166: 144: 677:
more, depending on the antenna system, the type of terrain, and the
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European Conference of Postal and Telecommunications Administrations
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because they were previously used for first-generation systems.
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signed a joint development agreement in 1984 and were joined by
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International Journal of Research & Scientific Innovation
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cellphone and decryption software available for free online.
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Cell horizontal radius varies – depending on antenna height,
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2G networks developed as a replacement for first generation (
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GSM uses several cryptographic algorithms for security. The
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standards, which do not form part of the ETSI GSM standard.
4845: 3471: 3169: 2983: 2851: 2778: 1632:. IEEE United Kingdom and Ireland Section. 1 September 2018 1268: 1212: 1145: 1017: 974:, make calls, or send text messages using a seven-year-old 940: 928: 924: 920: 825: 810: 197: 189: 2486:
GSM and UMTS, The Creation of Global Mobile Communications
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The network is structured into several discrete sections:
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means they have patent protection for a number of years.
1773:(Second ed.). John Wiley & Sons, Incorporated. 1687:[World's first GSM call was made 30 years ago]. 338:
made the world's first GSM call on 1 July 1991, calling
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Beginning in the late 2010s, various carriers worldwide
127:(ETSI) to describe the protocols for second-generation ( 102: 3269: 3192: 2962: 2764: 2685: 2559: 2553: 2547: 2526:. Hermes (2nd ed.). Hermes Sciences Publications. 2373: 813:, EFR was refactored into a variable-rate codec called 724: 716: 205: 201: 193: 158: 128: 75: 2503:
Mouly, Michel; Pautet, Marie-Bernardette (June 2002).
2142:"GSM phones -- call them unsafe, says security expert" 1072: 514:
had earlier in the year been shut down in April 2017.
1255:– Security mechanisms for the SIM application toolkit 2094: 1685:"Ensimmäinen gsm-puhelu soitettiin 30 vuotta sitten" 954:
has been revealed in the literature. As an example,
428:-capable network also became operational. The first 820: 378:and Telecom Finland signed the first international 1529: 1527: 1525: 1523: 1521: 1054:aims to build a GSM analyzer for less than $ 1,000 1032:projects exist that provide certain GSM features: 2464: 2445: 1658:. Yelisradio OY. 22 February 2008. Archived from 1000:to prevent connections to fake base stations and 465:(OFDMA) technology standards issued by the 3GPP. 5058:Telecommunications-related introductions in 1991 5039: 2217: 1983: 1565: 1563: 1304:"The GSM Logo: The Mystery of the 4 Dots Solved" 2036:Trust, Privacy and Security in Digital Business 1948:https://www.ti.com/lit/an/snaa033d/snaa033d.pdf 1822:shut down its 2G GSM network in December 2017. 1518: 1388:, John Wiley & Sons, 31 July 2003, page 529 797:(13 kbit/s). These used a system based on 279:European Telecommunications Standards Institute 227: 125:European Telecommunications Standards Institute 2594: 2270: 2199:Lorenzo Franceschi-Bicchierai (12 June 2021). 1301: 703:GSM networks operate in a number of different 518:shut down 2G services entirely in April 2017. 200:standards, followed by the fourth-generation ( 3961: 3562: 2580: 1977: 1768: 1560: 1447: 1399:"GSM Global system for Mobile Communications" 653:are cells designed for use in residential or 463:orthogonal frequency-division multiple access 363: 2484:Hillebrand, Friedhelm, ed. (December 2001). 2311: 2139: 4976:Global telecommunications regulation bodies 2502: 1386:The Worldwide History of Telecommunications 1023: 801:(LPC). In addition to being efficient with 219:mobile phone technologies evolved from it. 5012: 3968: 3954: 3569: 3555: 2587: 2573: 2483: 1706: 1487: 1485: 692: 455:Universal Mobile Telecommunications System 80: 32: 2291:"GSM UMTS 3GPP Numbering Cross Reference" 574: 552:– the base stations and their controllers 2505:The GSM System for Mobile Communications 2467:GSM and Personal Communications Handbook 2010:Solutions to the GSM Security Weaknesses 1189:International Mobile Subscriber Identity 1011: 824: 584: 525: 301: 231: 204:) LTE Advanced and the fifth-generation 2521: 2221:Advances in Cryptology – EUROCRYPT 2021 2097:"Cellphone Encryption Code Is Divulged" 1861:"Optus to complete 2G network turn off" 1720:. GSM Association. 2010. Archived from 1541:. GSM Association. 2001. Archived from 1482: 1183:International Mobile Equipment Identity 213:started to shut down their GSM networks 117:Global System for Mobile Communications 5040: 3975: 3457:Multimedia Broadcast Multicast Service 1453: 1109:GSM forwarding standard features codes 833:One of the key features of GSM is the 3949: 3550: 2568: 2095:Kevin J. O'Brien (28 December 2009). 1103:Enhanced Data Rates for GSM Evolution 419:Enhanced Data rates for GSM Evolution 374:(SMS or "text message") message, and 183:Enhanced Data Rates for GSM Evolution 5022: 3415:Spectral efficiency comparison table 2350:. Wiki.openmoko.org. 8 February 2010 1435:from the original on 30 January 2023 1330: 1328: 1237:Comparison of mobile phone standards 943:that allow A5/1 to be broken with a 910:Universal Subscriber Identity Module 866:In some countries and regions (e.g. 540: 521: 212: 2556:—3G GSM standards development group 1302:Sauter, Martin (21 November 2013). 1073:Issues with patents and open source 1020:, where a full list is maintained. 659:telecommunications service provider 16:Cellular telephone network standard 13: 2522:Salgues, Salgues B. (April 1997). 2439: 2260:from the original on 16 June 2021. 1795:"Telstra switches off GSM network" 1654:[World's first GSM call]. 1271:– Radio Resource Location Protocol 742:. These eight radio timeslots (or 472: 461:(CDMA) technology, nor the 4G LTE 358:. In 2021 a former Nokia engineer 14: 5069: 2541: 2140:Owano, Nancy (27 December 2011). 2072: 1652:"Maailman ensimmäinen GSM-puhelu" 1462:. CBS Interactive. Archived from 1325: 1177:High-Speed Downlink Packet Access 297: 123:) is a standard developed by the 5021: 5011: 5002: 5001: 4990: 4611:Free-space optical communication 3531: 3520: 2606:List of mobile phone generations 2398:. Bb.osmocom.org. Archived from 1841:from the original on 10 May 2016 1797:. TeleGeography. 2 December 2016 1691:. Helsingin Sanomat. 1 July 2021 1606:. Stephen Temple. 7 January 2007 849: 829:A nano sim used in mobile phones 821:Subscriber Identity Module (SIM) 785:GSM has used a variety of voice 281:(ETSI). The IEEE/RSE awarded to 2414: 2388: 2362: 2340: 2305: 2283: 2271:Matthew Sparks (17 June 2021). 2264: 2211: 2192: 2164: 2133: 2107: 2088: 2066: 2022: 2003: 1952: 1941: 1916: 1897: 1875: 1853: 1809: 1787: 1762: 1736: 1677: 1644: 1622: 1596: 1218:Personal communications network 877: 780: 556:Network and Switching Subsystem 385: 1769:Martin Sauter (23 June 2014). 1425:"GSM (2nd Generation Mobiles)" 1417: 1391: 1378: 1353: 1295: 1148:Network Identity and Time Zone 657:environments and connect to a 530:The structure of a GSM network 1: 3886:Delay and disruption tolerant 1401:. 4G Americas. Archived from 1289: 1203:Mobile Subscriber ISDN Number 1152:Wireless Application Protocol 459:code-division multiple access 409:In 2000 the first commercial 342:(deputy mayor of the city of 4997:Telecommunication portal 4778:Telecommunications equipment 3527:Telecommunication portal 2524:Les tĂ©lĂ©coms mobiles GSM DCS 1429:Engaging with Communications 1140:Multimedia Messaging Service 983:General Packet Radio Service 746:periods) are grouped into a 415:Multimedia Messaging Service 411:General Packet Radio Service 228:Initial European development 192:developed third-generation ( 179:General Packet Radio Service 150:It was first implemented in 143:. GSM may also refer to the 7: 4514:Alexander Stepanovich Popov 2233:10.1007/978-3-030-77886-6_6 2075:"The A5/1 Cracking Project" 2044:10.1007/978-3-319-22906-5_6 1454:Leader (7 September 2007). 1090: 570:(OSS) – network maintenance 439: 432:network launched in 2007. ( 346:) using a network built by 254:memorandum of understanding 10: 5074: 4218:Telecommunications history 3024:CDMA2000 1xEV-DO Release 0 2370:"The Hacker's Choice Wiki" 1456:"Happy 20th Birthday, GSM" 1282:Visitors Location Register 1242:GEO-Mobile Radio Interface 1229:Simulation of GSM networks 841:. The SIM is a detachable 835:Subscriber Identity Module 758:and the frame duration is 696: 578: 533: 476: 222: 171:circuit-switched transport 18: 4985: 4927: 4864: 4826:Public Switched Telephone 4786: 4750: 4707: 4648: 4638:telecommunication circuit 4599:Fiber-optic communication 4582: 4344:Francis Blake (telephone) 4291: 4139:Optical telecommunication 3983: 3920: 3885: 3857: 3804: 3766: 3757: 3738: 3723: 3705: 3662: 3639: 3597: 3588: 3517: 3339: 3319: 3283: 3268: 3233: 3206: 3191: 3168: 3127: 3098: 3048: 3037: 3016: 2976: 2961: 2936: 2914: 2906:EDGE/EGPRS - Evolved EDGE 2890: 2879: 2839: 2831:D-AMPS (IS-54 and IS-136) 2820: 2801: 2773: 2763: 2718: 2694: 2684: 2612: 2603: 2488:. John Wiley & Sons. 1984:Victoria Shannon (2007). 1960:"GSM 06.51 version 4.0.1" 1928:www.electronics-notes.com 1744:"Mobile technologies GSM" 1365:www.electronics-notes.com 568:Operations support system 291:James Clerk Maxwell medal 97: 93:Digital cellular networks 89: 71: 53: 43: 31: 4737:Orbital angular-momentum 4174:Satellite communications 4013:Communications satellite 1910:19 February 2012 at the 1067:Base transceiver station 1052:The GSM Software Project 1047:Base transceiver station 1024:GSM open-source software 856:mobile network operators 799:linear predictive coding 434:High Speed Packet Access 4616:Molecular communication 4439:Gardiner Greene Hubbard 4268:Undersea telegraph line 4003:Cable protection system 3362:Comparison of standards 3001:UTRA-TDD LCR / TD-SCDMA 2115:"A5/1 Cracking Project" 1224:RTP audio video profile 1207:Nordic Mobile Telephone 964:known plaintext attacks 908:introduced an optional 707:ranges (separated into 693:GSM carrier frequencies 372:short messaging service 4758:Communication protocol 4544:Charles Sumner Tainter 4359:Walter Houser Brattain 4304:Edwin Howard Armstrong 4112:Information revolution 3908:Dynamic Source Routing 3578:Channel access methods 3367:Channel access methods 3006:UTRA-TDD HCR / TD-CDMA 2507:. Telecom Publishing. 2448:An Introduction to GSM 2159:free off the Internet. 1863:. Optus. 1 August 2017 1714:"GSM World statistics" 958:developed a number of 937:ciphertext-only attack 837:, commonly known as a 830: 793:(6.5 kbit/s) and 605: 581:Base station subsystem 575:Base-station subsystem 550:Base station subsystem 531: 364: 326:in 1986. In 1986, the 307: 237: 59:; 32 years ago 4732:Polarization-division 4464:Narinder Singh Kapany 4429:Erna Schneider Hoover 4349:Jagadish Chandra Bose 4329:Alexander Graham Bell 4060:online video platform 3538:Telephones portal 2646:MTA - MTB - MTC - MTD 1965:. ETSI. December 1997 1340:trademarks.justia.com 1012:Standards information 828: 723:For comparison, most 588: 529: 305: 246:Groupe SpĂ©cial Mobile 235: 4574:Vladimir K. Zworykin 4534:Almon Brown Strowger 4504:Charles Grafton Page 4159:Prepaid mobile phone 4087:Electrical telegraph 3582:media access control 3155:iBurst (IEEE 802.20) 2928:CDMA2000 1X Advanced 1384:Anton A. Huurdeman, 1249:– Cellphone features 1030:open-source software 756:270.833 kbit/s, 713:UMTS frequency bands 709:GSM frequency ranges 306:Prototype GSM phones 21:GSM (disambiguation) 19:For other uses, see 4524:Johann Philipp Reis 4283:Wireless revolution 4245:The Telephone Cases 4102:Hydraulic telegraph 3806:Collision avoidance 3041:(3.5G, 3.75G, 3.9G) 2883:(2.5G, 2.75G, 2.9G) 2651:Mobile TeleSeratout 2402:on 26 February 2011 2121:on 25 December 2009 2084:– via Scribd. 1885:. M1. 27 March 2017 1820:Trinidad and Tobago 1581:on 17 February 2012 1503:on 11 February 2012 1259:Intelligent Network 1195:Long Term Evolution 1115:GSM frequency bands 1065:YateBTS develops a 904:The development of 729:GSM frequency bands 715:for 3G), with most 699:GSM frequency bands 479:2G § Phase-out 328:European Commission 177:data transport via 28: 4722:Frequency-division 4699:Telephone exchange 4569:Charles Wheatstone 4499:Jun-ichi Nishizawa 4474:Innocenzo Manzetti 4409:Reginald Fessenden 4144:Optical telegraphy 3977:Telecommunications 3768:Collision recovery 3529:    3115:(TIA/EIA/IS-856-B) 3109:(TIA/EIA/IS-856-A) 3107:1xEV-DO Revision A 2101:The New York Times 1990:The New York Times 1604:"Who created GSM?" 1571:"Cellular History" 1405:on 8 February 2014 888:challenge–response 831: 807:enhanced full rate 663:broadband-internet 606: 532: 512:Northern Territory 398:became available. 308: 244:(CEPT) set up the 238: 188:Subsequently, the 48:Telecommunications 26: 5035: 5034: 4773:Store and forward 4768:Data transmission 4682:Network switching 4633:Transmission line 4479:Guglielmo Marconi 4444:Internet pioneers 4309:Mohamed M. Atalla 4278:Whistled language 3943: 3942: 3922:Duplexing methods 3916: 3915: 3753: 3752: 3544: 3543: 3347:Cellular networks 3335: 3334: 3264: 3263: 3187: 3186: 3033: 3032: 2989:UTRA-FDD / W-CDMA 2957: 2956: 2924:(TIA/EIA/IS-2000) 2875: 2874: 2759: 2758: 2514:978-0-945592-15-0 2495:978-0-470-84322-2 2476:978-0-89006-957-8 2457:978-0-89006-785-7 2376:on 15 August 2010 2348:"Gsmd – Openmoko" 2242:978-3-030-77885-9 2148:on 3 January 2012 2053:978-3-319-22905-8 1002:downgrade attacks 899:cellular networks 705:carrier frequency 661:'s network via a 562:GPRS Core Network 541:Network structure 522:Technical details 508:Western Australia 492:AT&T Mobility 366:Helsingin Sanomat 348:Nokia and Siemens 133:cellular networks 113: 112: 5065: 5025: 5024: 5015: 5014: 5005: 5004: 4995: 4994: 4993: 4866:Notable networks 4856:Wireless network 4796:Cellular network 4788:Types of network 4763:Computer network 4650:Network topology 4564:Thomas A. Watson 4419:Oliver Heaviside 4404:Philo Farnsworth 4379:Daniel Davis Jr. 4354:Charles Bourseul 4314:John Logie Baird 4023:Data compression 4018:Computer network 3970: 3963: 3956: 3947: 3946: 3764: 3763: 3595: 3594: 3571: 3564: 3557: 3548: 3547: 3536: 3535: 3534: 3525: 3524: 3523: 3452:Mobile broadband 3352:Mobile telephony 3340:Related articles 3281: 3280: 3224:LTE Advanced Pro 3204: 3203: 3119:EV-DO Revision C 3113:EV-DO Revision B 3046: 3045: 2974: 2973: 2888: 2887: 2771: 2770: 2692: 2691: 2617:radio telephones 2596:Cellular network 2589: 2582: 2575: 2566: 2565: 2537: 2518: 2499: 2480: 2461: 2450:. Artech House. 2434: 2433: 2431: 2429: 2418: 2412: 2411: 2409: 2407: 2392: 2386: 2385: 2383: 2381: 2372:. Archived from 2366: 2360: 2359: 2357: 2355: 2344: 2338: 2337: 2309: 2303: 2302: 2300: 2298: 2287: 2281: 2280: 2268: 2262: 2261: 2259: 2226: 2215: 2209: 2208: 2196: 2190: 2189: 2187: 2185: 2180:. 12 August 2011 2168: 2162: 2161: 2155: 2153: 2144:. Archived from 2137: 2131: 2130: 2128: 2126: 2117:. Archived from 2111: 2105: 2104: 2092: 2086: 2085: 2083: 2081: 2070: 2064: 2063: 2062: 2060: 2026: 2020: 2007: 2001: 2000: 1998: 1996: 1981: 1975: 1974: 1972: 1970: 1964: 1956: 1950: 1945: 1939: 1938: 1936: 1934: 1920: 1914: 1901: 1895: 1894: 1892: 1890: 1879: 1873: 1872: 1870: 1868: 1857: 1851: 1850: 1848: 1846: 1840: 1829: 1813: 1807: 1806: 1804: 1802: 1791: 1785: 1784: 1766: 1760: 1759: 1757: 1755: 1750:on 30 March 2014 1746:. Archived from 1740: 1734: 1733: 1731: 1729: 1710: 1704: 1703: 1698: 1696: 1681: 1675: 1674: 1669: 1667: 1648: 1642: 1641: 1639: 1637: 1626: 1620: 1619: 1613: 1611: 1600: 1594: 1593: 1588: 1586: 1567: 1558: 1557: 1552: 1550: 1531: 1516: 1515: 1510: 1508: 1489: 1480: 1479: 1473: 1471: 1451: 1445: 1444: 1442: 1440: 1421: 1415: 1414: 1412: 1410: 1395: 1389: 1382: 1376: 1375: 1373: 1371: 1357: 1351: 1350: 1348: 1346: 1332: 1323: 1322: 1317: 1315: 1306:. Archived from 1299: 1135:GSM localization 1098:Cellular network 969: 776: 772: 768: 761: 757: 753: 610:cellular network 595:Deutsches Museum 593:antennas in the 369: 109: 106: 104: 85: 84: 67: 65: 60: 36: 29: 25: 5073: 5072: 5068: 5067: 5066: 5064: 5063: 5062: 5038: 5037: 5036: 5031: 4991: 4989: 4981: 4923: 4860: 4782: 4746: 4703: 4652: 4644: 4585: 4578: 4484:Robert Metcalfe 4339:Tim Berners-Lee 4287: 4107:Information Age 3979: 3974: 3944: 3939: 3912: 3881: 3853: 3800: 3749: 3734: 3719: 3701: 3658: 3635: 3584: 3575: 3545: 3540: 3532: 3530: 3521: 3519: 3513: 3420:Frequency bands 3331: 3315: 3273: 3260: 3229: 3196: 3183: 3164: 3123: 3094: 3040: 3039:3G transitional 3029: 3012: 2966: 2953: 2932: 2910: 2882: 2881:2G transitional 2871: 2835: 2816: 2812:cdmaOne (IS-95) 2797: 2755: 2714: 2680: 2608: 2599: 2593: 2548:GSM Association 2544: 2534: 2515: 2496: 2477: 2458: 2442: 2440:Further reading 2437: 2427: 2425: 2420: 2419: 2415: 2405: 2403: 2394: 2393: 2389: 2379: 2377: 2368: 2367: 2363: 2353: 2351: 2346: 2345: 2341: 2310: 2306: 2296: 2294: 2289: 2288: 2284: 2269: 2265: 2257: 2243: 2224: 2216: 2212: 2197: 2193: 2183: 2181: 2170: 2169: 2165: 2151: 2149: 2138: 2134: 2124: 2122: 2113: 2112: 2108: 2093: 2089: 2079: 2077: 2071: 2067: 2058: 2056: 2054: 2027: 2023: 2008: 2004: 1994: 1992: 1982: 1978: 1968: 1966: 1962: 1958: 1957: 1953: 1946: 1942: 1932: 1930: 1922: 1921: 1917: 1912:Wayback Machine 1902: 1898: 1888: 1886: 1881: 1880: 1876: 1866: 1864: 1859: 1858: 1854: 1844: 1842: 1838: 1827: 1823: 1814: 1810: 1800: 1798: 1793: 1792: 1788: 1781: 1767: 1763: 1753: 1751: 1742: 1741: 1737: 1727: 1725: 1712: 1711: 1707: 1694: 1692: 1683: 1682: 1678: 1665: 1663: 1650: 1649: 1645: 1635: 1633: 1628: 1627: 1623: 1609: 1607: 1602: 1601: 1597: 1584: 1582: 1569: 1568: 1561: 1548: 1546: 1533: 1532: 1519: 1506: 1504: 1491: 1490: 1483: 1469: 1467: 1452: 1448: 1438: 1436: 1423: 1422: 1418: 1408: 1406: 1397: 1396: 1392: 1383: 1379: 1369: 1367: 1359: 1358: 1354: 1344: 1342: 1334: 1333: 1326: 1313: 1311: 1310:on 4 March 2016 1300: 1296: 1292: 1287: 1093: 1075: 1036:gsmd daemon by 1026: 1014: 967: 914:non-repudiation 880: 852: 823: 783: 774: 770: 766: 759: 755: 751: 740:radio frequency 701: 695: 686:indoor repeater 612:, meaning that 608:GSM utilizes a 583: 577: 543: 538: 524: 481: 475: 473:Discontinuation 446:GSM Association 442: 404:GSM Association 388: 334:prime minister 300: 287:Philippe Dupuis 275:Philippe Dupuis 230: 225: 141:GSM Association 101: 79: 63: 61: 58: 39: 24: 17: 12: 11: 5: 5071: 5061: 5060: 5055: 5050: 5033: 5032: 5030: 5029: 5019: 5009: 4999: 4986: 4983: 4982: 4980: 4979: 4972: 4967: 4962: 4957: 4952: 4951: 4950: 4945: 4937: 4931: 4929: 4925: 4924: 4922: 4921: 4916: 4911: 4906: 4901: 4896: 4891: 4886: 4881: 4876: 4870: 4868: 4862: 4861: 4859: 4858: 4853: 4848: 4843: 4838: 4833: 4828: 4823: 4818: 4813: 4808: 4803: 4798: 4792: 4790: 4784: 4783: 4781: 4780: 4775: 4770: 4765: 4760: 4754: 4752: 4748: 4747: 4745: 4744: 4739: 4734: 4729: 4724: 4719: 4717:Space-division 4713: 4711: 4705: 4704: 4702: 4701: 4696: 4695: 4694: 4689: 4679: 4678: 4677: 4667: 4662: 4656: 4654: 4646: 4645: 4643: 4642: 4641: 4640: 4630: 4629: 4628: 4618: 4613: 4608: 4607: 4606: 4596: 4590: 4588: 4580: 4579: 4577: 4576: 4571: 4566: 4561: 4556: 4554:Camille Tissot 4551: 4546: 4541: 4536: 4531: 4529:Claude Shannon 4526: 4521: 4519:Tivadar Puskás 4516: 4511: 4506: 4501: 4496: 4491: 4489:Antonio Meucci 4486: 4481: 4476: 4471: 4466: 4461: 4459:Charles K. Kao 4456: 4451: 4446: 4441: 4436: 4434:Harold Hopkins 4431: 4426: 4421: 4416: 4411: 4406: 4401: 4396: 4391: 4386: 4381: 4376: 4371: 4366: 4361: 4356: 4351: 4346: 4341: 4336: 4334:Emile Berliner 4331: 4326: 4321: 4316: 4311: 4306: 4301: 4295: 4293: 4289: 4288: 4286: 4285: 4280: 4275: 4273:Videotelephony 4270: 4265: 4264: 4263: 4258: 4248: 4241: 4236: 4230: 4225: 4220: 4215: 4210: 4209: 4208: 4203: 4198: 4188: 4187: 4186: 4176: 4171: 4169:Radiotelephone 4166: 4161: 4156: 4151: 4146: 4141: 4136: 4135: 4134: 4124: 4119: 4114: 4109: 4104: 4099: 4094: 4089: 4084: 4079: 4074: 4073: 4072: 4067: 4062: 4057: 4055:Internet video 4047: 4046: 4045: 4040: 4035: 4030: 4020: 4015: 4010: 4005: 4000: 3995: 3989: 3987: 3981: 3980: 3973: 3972: 3965: 3958: 3950: 3941: 3940: 3938: 3937: 3932: 3926: 3924: 3918: 3917: 3914: 3913: 3911: 3910: 3905: 3900: 3895: 3889: 3887: 3883: 3882: 3880: 3879: 3874: 3869: 3863: 3861: 3859:Collision-free 3855: 3854: 3852: 3851: 3846: 3841: 3836: 3831: 3826: 3821: 3816: 3810: 3808: 3802: 3801: 3799: 3798: 3793: 3788: 3783: 3778: 3772: 3770: 3761: 3755: 3754: 3751: 3750: 3748: 3747: 3744: 3742: 3736: 3735: 3733: 3732: 3729: 3727: 3721: 3720: 3718: 3717: 3711: 3709: 3703: 3702: 3700: 3699: 3694: 3689: 3684: 3679: 3674: 3668: 3666: 3660: 3659: 3657: 3656: 3651: 3645: 3643: 3637: 3636: 3634: 3633: 3632: 3631: 3621: 3620: 3619: 3614: 3603: 3601: 3592: 3586: 3585: 3574: 3573: 3566: 3559: 3551: 3542: 3541: 3518: 3515: 3514: 3512: 3511: 3506: 3505: 3504: 3499: 3494: 3489: 3484: 3474: 3469: 3464: 3459: 3454: 3449: 3448: 3447: 3442: 3437: 3432: 3427: 3417: 3412: 3411: 3410: 3405: 3404: 3403: 3393: 3392: 3391: 3381: 3380: 3379: 3364: 3359: 3354: 3349: 3343: 3341: 3337: 3336: 3333: 3332: 3330: 3329: 3323: 3321: 3317: 3316: 3314: 3313: 3308: 3303: 3298: 3293: 3287: 3285: 3278: 3266: 3265: 3262: 3261: 3259: 3258: 3257: 3256: 3251: 3237: 3235: 3231: 3230: 3228: 3227: 3221: 3210: 3208: 3201: 3189: 3188: 3185: 3184: 3182: 3181: 3175: 3173: 3166: 3165: 3163: 3162: 3157: 3152: 3147: 3146: 3145: 3134: 3132: 3125: 3124: 3122: 3121: 3116: 3110: 3102: 3100: 3096: 3095: 3093: 3092: 3082: 3081: 3080: 3070: 3069: 3068: 3063: 3052: 3050: 3043: 3035: 3034: 3031: 3030: 3028: 3027: 3020: 3018: 3014: 3013: 3011: 3010: 3009: 3008: 3003: 2998: 2997: 2996: 2980: 2978: 2971: 2959: 2958: 2955: 2954: 2952: 2951: 2946: 2940: 2938: 2934: 2933: 2931: 2930: 2925: 2918: 2916: 2912: 2911: 2909: 2908: 2903: 2897: 2895: 2885: 2877: 2876: 2873: 2872: 2870: 2869: 2864: 2859: 2854: 2849: 2843: 2841: 2837: 2836: 2834: 2833: 2827: 2825: 2818: 2817: 2815: 2814: 2808: 2806: 2799: 2798: 2796: 2795: 2790: 2784: 2782: 2768: 2761: 2760: 2757: 2756: 2754: 2753: 2748: 2743: 2738: 2733: 2728: 2722: 2720: 2716: 2715: 2713: 2712: 2707: 2701: 2699: 2689: 2682: 2681: 2679: 2678: 2673: 2668: 2663: 2661:Autotel (PALM) 2658: 2653: 2648: 2643: 2638: 2633: 2628: 2622: 2620: 2610: 2609: 2604: 2601: 2600: 2592: 2591: 2584: 2577: 2569: 2563: 2562: 2557: 2551: 2543: 2542:External links 2540: 2539: 2538: 2533:978-2866016067 2532: 2519: 2513: 2500: 2494: 2481: 2475: 2462: 2456: 2441: 2438: 2436: 2435: 2413: 2387: 2361: 2339: 2304: 2282: 2263: 2241: 2210: 2191: 2163: 2132: 2106: 2087: 2065: 2052: 2021: 2002: 1976: 1951: 1940: 1915: 1896: 1874: 1852: 1808: 1786: 1779: 1761: 1735: 1724:on 21 May 2010 1705: 1676: 1662:on 6 July 2011 1643: 1621: 1595: 1559: 1545:on 19 May 2011 1517: 1481: 1446: 1416: 1390: 1377: 1352: 1324: 1293: 1291: 1288: 1286: 1285: 1279: 1274: 1273: 1272: 1266: 1261: 1256: 1250: 1244: 1239: 1231: 1226: 1221: 1215: 1210: 1204: 1198: 1192: 1186: 1180: 1174: 1169: 1166:GSM USSD codes 1163: 1157: 1156: 1155: 1149: 1143: 1137: 1132: 1130:Cell Broadcast 1122: 1117: 1112: 1106: 1100: 1094: 1092: 1089: 1074: 1071: 1070: 1069: 1063: 1055: 1049: 1040: 1025: 1022: 1013: 1010: 960:rainbow tables 932:stream ciphers 895:script kiddies 884:pre-shared key 879: 876: 851: 848: 822: 819: 815:AMR-Narrowband 782: 779: 697:Main article: 694: 691: 679:timing advance 655:small-business 643: 642: 641:umbrella cells 639: 633: 628: 623: 579:Main article: 576: 573: 572: 571: 565: 559: 553: 542: 539: 534:Main article: 523: 520: 474: 471: 441: 438: 387: 384: 340:Kaarina Suonio 299: 298:First networks 296: 229: 226: 224: 221: 111: 110: 99: 95: 94: 91: 87: 86: 73: 69: 68: 55: 51: 50: 45: 41: 40: 37: 15: 9: 6: 4: 3: 2: 5070: 5059: 5056: 5054: 5051: 5049: 5046: 5045: 5043: 5028: 5020: 5018: 5010: 5008: 5000: 4998: 4988: 4987: 4984: 4977: 4973: 4971: 4968: 4966: 4963: 4961: 4958: 4956: 4953: 4949: 4946: 4944: 4941: 4940: 4938: 4936: 4933: 4932: 4930: 4926: 4920: 4917: 4915: 4912: 4910: 4907: 4905: 4902: 4900: 4897: 4895: 4892: 4890: 4887: 4885: 4882: 4880: 4877: 4875: 4872: 4871: 4869: 4867: 4863: 4857: 4854: 4852: 4849: 4847: 4844: 4842: 4839: 4837: 4834: 4832: 4829: 4827: 4824: 4822: 4819: 4817: 4814: 4812: 4809: 4807: 4804: 4802: 4799: 4797: 4794: 4793: 4791: 4789: 4785: 4779: 4776: 4774: 4771: 4769: 4766: 4764: 4761: 4759: 4756: 4755: 4753: 4749: 4743: 4742:Code-division 4740: 4738: 4735: 4733: 4730: 4728: 4727:Time-division 4725: 4723: 4720: 4718: 4715: 4714: 4712: 4710: 4706: 4700: 4697: 4693: 4690: 4688: 4685: 4684: 4683: 4680: 4676: 4673: 4672: 4671: 4668: 4666: 4663: 4661: 4658: 4657: 4655: 4653:and switching 4651: 4647: 4639: 4636: 4635: 4634: 4631: 4627: 4624: 4623: 4622: 4619: 4617: 4614: 4612: 4609: 4605: 4604:optical fiber 4602: 4601: 4600: 4597: 4595: 4594:Coaxial cable 4592: 4591: 4589: 4587: 4581: 4575: 4572: 4570: 4567: 4565: 4562: 4560: 4557: 4555: 4552: 4550: 4547: 4545: 4542: 4540: 4537: 4535: 4532: 4530: 4527: 4525: 4522: 4520: 4517: 4515: 4512: 4510: 4509:Radia Perlman 4507: 4505: 4502: 4500: 4497: 4495: 4492: 4490: 4487: 4485: 4482: 4480: 4477: 4475: 4472: 4470: 4467: 4465: 4462: 4460: 4457: 4455: 4452: 4450: 4447: 4445: 4442: 4440: 4437: 4435: 4432: 4430: 4427: 4425: 4422: 4420: 4417: 4415: 4412: 4410: 4407: 4405: 4402: 4400: 4399:Lee de Forest 4397: 4395: 4394:Thomas Edison 4392: 4390: 4387: 4385: 4384:Donald Davies 4382: 4380: 4377: 4375: 4372: 4370: 4369:Claude Chappe 4367: 4365: 4362: 4360: 4357: 4355: 4352: 4350: 4347: 4345: 4342: 4340: 4337: 4335: 4332: 4330: 4327: 4325: 4322: 4320: 4317: 4315: 4312: 4310: 4307: 4305: 4302: 4300: 4297: 4296: 4294: 4290: 4284: 4281: 4279: 4276: 4274: 4271: 4269: 4266: 4262: 4259: 4257: 4254: 4253: 4252: 4249: 4247: 4246: 4242: 4240: 4237: 4234: 4231: 4229: 4226: 4224: 4221: 4219: 4216: 4214: 4213:Smoke signals 4211: 4207: 4204: 4202: 4199: 4197: 4194: 4193: 4192: 4191:Semiconductor 4189: 4185: 4182: 4181: 4180: 4177: 4175: 4172: 4170: 4167: 4165: 4162: 4160: 4157: 4155: 4152: 4150: 4147: 4145: 4142: 4140: 4137: 4133: 4130: 4129: 4128: 4125: 4123: 4120: 4118: 4115: 4113: 4110: 4108: 4105: 4103: 4100: 4098: 4095: 4093: 4090: 4088: 4085: 4083: 4080: 4078: 4075: 4071: 4068: 4066: 4063: 4061: 4058: 4056: 4053: 4052: 4051: 4050:Digital media 4048: 4044: 4041: 4039: 4036: 4034: 4031: 4029: 4026: 4025: 4024: 4021: 4019: 4016: 4014: 4011: 4009: 4006: 4004: 4001: 3999: 3996: 3994: 3991: 3990: 3988: 3986: 3982: 3978: 3971: 3966: 3964: 3959: 3957: 3952: 3951: 3948: 3936: 3933: 3931: 3928: 3927: 3925: 3923: 3919: 3909: 3906: 3904: 3901: 3899: 3896: 3894: 3891: 3890: 3888: 3884: 3878: 3875: 3873: 3870: 3868: 3865: 3864: 3862: 3860: 3856: 3850: 3847: 3845: 3842: 3840: 3837: 3835: 3832: 3830: 3827: 3825: 3822: 3820: 3817: 3815: 3812: 3811: 3809: 3807: 3803: 3797: 3794: 3792: 3789: 3787: 3784: 3782: 3781:Slotted ALOHA 3779: 3777: 3774: 3773: 3771: 3769: 3765: 3762: 3760: 3756: 3746: 3745: 3743: 3741: 3737: 3731: 3730: 3728: 3726: 3722: 3716: 3713: 3712: 3710: 3708: 3704: 3698: 3695: 3693: 3690: 3688: 3685: 3683: 3680: 3678: 3675: 3673: 3670: 3669: 3667: 3665: 3661: 3655: 3652: 3650: 3647: 3646: 3644: 3642: 3638: 3630: 3627: 3626: 3625: 3622: 3618: 3615: 3613: 3610: 3609: 3608: 3605: 3604: 3602: 3600: 3596: 3593: 3591: 3590:Channel-based 3587: 3583: 3579: 3572: 3567: 3565: 3560: 3558: 3553: 3552: 3549: 3539: 3528: 3516: 3510: 3507: 3503: 3502:Wi-Fi Calling 3500: 3498: 3495: 3493: 3490: 3488: 3485: 3483: 3480: 3479: 3478: 3475: 3473: 3470: 3468: 3465: 3463: 3462:NGMN Alliance 3460: 3458: 3455: 3453: 3450: 3446: 3443: 3441: 3438: 3436: 3433: 3431: 3428: 3426: 3423: 3422: 3421: 3418: 3416: 3413: 3409: 3406: 3402: 3399: 3398: 3397: 3394: 3390: 3387: 3386: 3385: 3382: 3378: 3375: 3374: 3373: 3370: 3369: 3368: 3365: 3363: 3360: 3358: 3355: 3353: 3350: 3348: 3345: 3344: 3342: 3338: 3328: 3325: 3324: 3322: 3318: 3312: 3309: 3307: 3304: 3302: 3299: 3297: 3294: 3292: 3289: 3288: 3286: 3282: 3279: 3276: 3271: 3267: 3255: 3252: 3249: 3248: 3246: 3242: 3239: 3238: 3236: 3232: 3225: 3222: 3219: 3215: 3212: 3211: 3209: 3205: 3202: 3199: 3194: 3190: 3180: 3177: 3176: 3174: 3171: 3167: 3161: 3158: 3156: 3153: 3151: 3148: 3144: 3141: 3140: 3139: 3136: 3135: 3133: 3130: 3126: 3120: 3117: 3114: 3111: 3108: 3104: 3103: 3101: 3097: 3090: 3086: 3083: 3079: 3076: 3075: 3074: 3071: 3067: 3064: 3062: 3059: 3058: 3057: 3054: 3053: 3051: 3047: 3044: 3042: 3036: 3025: 3022: 3021: 3019: 3015: 3007: 3004: 3002: 2999: 2995: 2992: 2991: 2990: 2987: 2986: 2985: 2982: 2981: 2979: 2975: 2972: 2969: 2964: 2960: 2950: 2947: 2945: 2942: 2941: 2939: 2935: 2929: 2926: 2923: 2920: 2919: 2917: 2913: 2907: 2904: 2902: 2899: 2898: 2896: 2893: 2889: 2886: 2884: 2878: 2868: 2865: 2863: 2860: 2858: 2855: 2853: 2850: 2848: 2845: 2844: 2842: 2838: 2832: 2829: 2828: 2826: 2823: 2819: 2813: 2810: 2809: 2807: 2804: 2800: 2794: 2791: 2789: 2786: 2785: 2783: 2780: 2776: 2772: 2769: 2766: 2762: 2752: 2749: 2747: 2744: 2742: 2739: 2737: 2734: 2732: 2729: 2727: 2724: 2723: 2721: 2717: 2711: 2708: 2706: 2705:AMPS - N-AMPS 2703: 2702: 2700: 2697: 2693: 2690: 2687: 2683: 2677: 2674: 2672: 2669: 2667: 2664: 2662: 2659: 2657: 2654: 2652: 2649: 2647: 2644: 2642: 2639: 2637: 2634: 2632: 2629: 2627: 2624: 2623: 2621: 2618: 2615: 2611: 2607: 2602: 2597: 2590: 2585: 2583: 2578: 2576: 2571: 2570: 2567: 2561: 2558: 2555: 2552: 2549: 2546: 2545: 2535: 2529: 2525: 2520: 2516: 2510: 2506: 2501: 2497: 2491: 2487: 2482: 2478: 2472: 2468: 2463: 2459: 2453: 2449: 2444: 2443: 2423: 2417: 2401: 2397: 2391: 2375: 2371: 2365: 2349: 2343: 2335: 2331: 2327: 2323: 2319: 2315: 2308: 2292: 2286: 2278: 2277:New Scientist 2274: 2267: 2256: 2252: 2248: 2244: 2238: 2234: 2230: 2223: 2222: 2214: 2206: 2202: 2195: 2179: 2178: 2173: 2167: 2160: 2147: 2143: 2136: 2120: 2116: 2110: 2102: 2098: 2091: 2076: 2069: 2055: 2049: 2045: 2041: 2037: 2033: 2025: 2019: 2015: 2011: 2006: 1991: 1987: 1980: 1961: 1955: 1949: 1944: 1929: 1925: 1919: 1913: 1909: 1905: 1900: 1884: 1878: 1862: 1856: 1837: 1833: 1826: 1821: 1817: 1812: 1796: 1790: 1782: 1780:9781118861929 1776: 1772: 1765: 1749: 1745: 1739: 1723: 1719: 1715: 1709: 1702: 1690: 1686: 1680: 1673: 1661: 1657: 1653: 1647: 1631: 1625: 1618: 1605: 1599: 1592: 1580: 1576: 1572: 1566: 1564: 1556: 1544: 1540: 1536: 1530: 1528: 1526: 1524: 1522: 1514: 1502: 1498: 1494: 1488: 1486: 1478: 1466:on 5 May 2011 1465: 1461: 1457: 1450: 1434: 1430: 1426: 1420: 1404: 1400: 1394: 1387: 1381: 1366: 1362: 1356: 1341: 1337: 1331: 1329: 1321: 1309: 1305: 1298: 1294: 1283: 1280: 1278: 1275: 1270: 1267: 1265: 1262: 1260: 1257: 1254: 1251: 1248: 1245: 1243: 1240: 1238: 1235: 1234: 1232: 1230: 1227: 1225: 1222: 1219: 1216: 1214: 1211: 1208: 1205: 1202: 1199: 1196: 1193: 1190: 1187: 1184: 1181: 1178: 1175: 1173: 1170: 1167: 1164: 1162:(GSM-Railway) 1161: 1158: 1153: 1150: 1147: 1144: 1141: 1138: 1136: 1133: 1131: 1128: 1127: 1126: 1123: 1121: 1118: 1116: 1113: 1110: 1107: 1104: 1101: 1099: 1096: 1095: 1088: 1085: 1079: 1068: 1064: 1061: 1060: 1056: 1053: 1050: 1048: 1044: 1041: 1039: 1035: 1034: 1033: 1031: 1021: 1019: 1009: 1005: 1003: 999: 995: 991: 986: 984: 979: 977: 973: 965: 961: 957: 953: 952:cryptanalysis 948: 946: 945:rainbow table 942: 938: 933: 930: 926: 922: 917: 915: 911: 907: 902: 900: 896: 891: 889: 885: 875: 873: 869: 864: 861: 857: 850:Phone locking 847: 844: 840: 836: 827: 818: 816: 812: 808: 804: 800: 796: 792: 788: 778: 775:GSM 1800/1900 763: 749: 745: 741: 737: 732: 730: 726: 721: 718: 714: 710: 706: 700: 690: 687: 682: 680: 675: 671: 666: 664: 660: 656: 651: 648: 640: 637: 634: 632: 629: 627: 624: 622: 619: 618: 617: 615: 611: 604: 600: 596: 592: 587: 582: 569: 566: 563: 560: 557: 554: 551: 548: 547: 546: 537: 528: 519: 517: 513: 509: 505: 501: 497: 496:United States 493: 489: 485: 480: 470: 466: 464: 460: 456: 450: 447: 437: 435: 431: 427: 422: 420: 416: 412: 407: 405: 399: 397: 393: 383: 381: 377: 373: 368: 367: 361: 357: 353: 349: 345: 341: 337: 336:Harri Holkeri 333: 329: 325: 321: 317: 313: 304: 295: 292: 288: 284: 280: 276: 270: 268: 262: 259: 255: 251: 247: 243: 234: 220: 218: 214: 209: 207: 203: 199: 195: 191: 186: 184: 180: 176: 172: 168: 164: 160: 155: 153: 148: 147:voice codec. 146: 142: 139:owned by the 138: 134: 130: 126: 122: 118: 108: 100: 96: 92: 88: 83: 77: 74: 70: 64:December 1991 57:December 1991 56: 52: 49: 46: 42: 35: 30: 22: 5053:GSM standard 4709:Multiplexing 4584:Transmission 4549:Nikola Tesla 4539:Henry Sutton 4494:Samuel Morse 4424:Robert Hooke 4389:Amos Dolbear 4324:John Bardeen 4243: 4223:Telautograph 4127:Mobile phone 4082:Edholm's law 4065:social media 3998:Broadcasting 3759:Packet-based 3467:Push-to-talk 3245:IEEE 802.16m 3214:LTE Advanced 3198:IMT Advanced 3143:IEEE 802.16e 3138:Mobile WiMAX 3099:3GPP2 family 3026:(TIA/IS-856) 3017:3GPP2 family 2915:3GPP2 family 2894:/3GPP family 2891: 2787: 2774: 2710:TACS - ETACS 2523: 2504: 2485: 2466: 2447: 2426:. Retrieved 2416: 2404:. Retrieved 2400:the original 2390: 2378:. Retrieved 2374:the original 2364: 2352:. Retrieved 2342: 2317: 2313: 2307: 2295:. Retrieved 2285: 2276: 2266: 2220: 2213: 2205:www.vice.com 2204: 2194: 2182:. Retrieved 2175: 2166: 2157: 2150:. Retrieved 2146:the original 2135: 2123:. Retrieved 2119:the original 2109: 2100: 2090: 2078:. Retrieved 2068: 2057:, retrieved 2035: 2024: 2005: 1993:. Retrieved 1989: 1979: 1967:. Retrieved 1954: 1943: 1931:. Retrieved 1927: 1918: 1899: 1887:. Retrieved 1877: 1865:. Retrieved 1855: 1843:. Retrieved 1832:ATT Mobility 1831: 1811: 1799:. Retrieved 1789: 1770: 1764: 1752:. Retrieved 1748:the original 1738: 1726:. Retrieved 1722:the original 1718:gsmworld.com 1717: 1708: 1700: 1693:. Retrieved 1688: 1679: 1671: 1664:. Retrieved 1660:the original 1655: 1646: 1634:. Retrieved 1624: 1615: 1608:. Retrieved 1598: 1590: 1583:. Retrieved 1579:the original 1574: 1554: 1547:. Retrieved 1543:the original 1539:gsmworld.com 1538: 1512: 1505:. 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Retrieved 1308:the original 1297: 1277:Um interface 1125:GSM services 1080: 1076: 1057: 1051: 1027: 1015: 1006: 987: 980: 956:Karsten Nohl 949: 918: 903: 892: 881: 878:GSM security 865: 853: 838: 832: 784: 781:Voice codecs 764: 733: 722: 702: 683: 670:antenna gain 667: 647:base-station 644: 607: 544: 536:GSM services 482: 467: 451: 443: 423: 408: 400: 396:mobile phone 389: 386:Enhancements 362:revealed to 310:In parallel 309: 271: 263: 245: 239: 216: 210: 187: 181:(GPRS), and 156: 149: 120: 116: 114: 4909:NPL network 4621:Radio waves 4559:Alfred Vail 4469:Hedy Lamarr 4454:Dawon Kahng 4414:Elisha Gray 4374:Yogen Dalal 4299:Nasir Ahmed 4233:Teleprinter 4097:Heliographs 3296:5G-Advanced 3284:3GPP family 3234:IEEE family 3226:(4.5G/4.9G) 3207:3GPP family 3049:3GPP family 2977:3GPP family 2922:CDMA2000 1X 2793:CSD - HSCSD 2424:. Legba Inc 2396:"OsmocomBB" 2297:30 December 2152:27 December 2125:30 December 2059:14 December 1969:5 September 1867:20 November 1825:"2G Sunset" 1636:10 December 1460:zdnet.co.uk 1314:23 November 1045:develops a 860:SIM locking 767:GSM 850/900 711:for 2G and 674:propagation 614:cell phones 382:agreement. 376:Vodafone UK 360:Pekka Lonka 283:Thomas Haug 163:full duplex 5042:Categories 4955:Antarctica 4914:Toasternet 4836:Television 4319:Paul Baran 4251:Television 4235:(teletype) 4228:Telegraphy 4206:transistor 4184:Phryctoria 4154:Photophone 4132:Smartphone 4122:Mass media 3867:Token Ring 3150:Flash-OFDM 2428:30 October 2320:(10): 10. 2177:Forbes.com 2080:3 November 1995:2 February 1933:9 February 1889:22 October 1801:2 December 1754:7 November 1695:11 October 1370:9 February 1345:9 February 1290:References 1233:Standards 863:operator. 854:Sometimes 843:smart card 752:8 channels 477:See also: 356:Radiolinja 258:Copenhagen 173:, then by 137:trade mark 131:) digital 4939:Americas 4928:Locations 4899:Internet2 4660:Bandwidth 4364:Vint Cerf 4261:streaming 4239:Telephone 4179:Semaphore 4070:streaming 3872:Token bus 3849:CSMA/CARP 3250:WiMax 2.1 3105:CDMA2000 2598:standards 2422:"YateBTS" 2380:30 August 2334:212468467 2326:2321-2705 2251:235452714 2184:13 August 2018:1002.3175 1845:10 August 1535:"History" 1253:GSM 03.48 1247:GSM 02.07 1120:GSM modem 1059:OsmocomBB 981:GSM uses 972:voicemail 795:Full Rate 791:Half Rate 760:4.615 ms. 736:timeslots 591:cell site 516:Singapore 504:Australia 494:from the 488:Australia 289:the 2018 167:telephony 145:Full Rate 72:Successor 5007:Category 4894:Internet 4884:CYCLADES 4801:Ethernet 4751:Concepts 4675:terminal 4626:wireless 4449:Bob Kahn 4292:Pioneers 4117:Internet 4008:Cable TV 3877:MS-ALOHA 3682:TD-SCDMA 3275:IMT-2020 3179:HiperMAN 3078:DC-HSDPA 2968:IMT-2000 2406:22 April 2354:22 April 2255:Archived 1908:Archived 1836:Archived 1575:etsi.org 1497:etsi.org 1433:Archived 1409:22 March 1264:Parlay X 1091:See also 1038:Openmoko 1028:Several 990:sniffing 976:Motorola 839:SIM card 803:bitrates 510:and the 457:(UMTS), 440:Adoption 352:operated 322:and the 185:(EDGE). 90:Products 44:Industry 5027:Commons 5017:Outline 4970:Oceania 4889:FidoNet 4874:ARPANET 4687:circuit 4256:digital 3985:History 3829:CSMA/CA 3796:CSMA/CD 3786:R-ALOHA 3715:HC-SDMA 3697:MC-CDMA 3692:FH-CDMA 3687:DS-CDMA 3677:TD-CDMA 3649:MF-TDMA 3617:SC-FDMA 3509:Osmocom 3357:History 3327:DECT-5G 3301:NR-IIoT 2746:DataTAC 2741:Mobitex 2073:Steve. 1816:bmobile 1617:abroad. 1610:7 April 1477:abroad. 1179:(HSDPA) 1172:Handoff 1084:OpenBTS 1043:OpenBTS 872:Germany 650:antenna 603:Germany 484:Telstra 392:Telstra 380:roaming 344:Tampere 332:Finnish 316:Germany 223:History 152:Finland 98:Website 62: ( 54:Founded 4965:Europe 4935:Africa 4919:Usenet 4879:BITNET 4816:Mobile 4692:packet 4201:MOSFET 4196:device 3993:Beacon 3672:W-CDMA 3311:NB-IoT 3277:(2021) 3272:(2018) 3218:E-UTRA 3200:(2013) 3195:(2009) 3172:family 3131:family 3089:E-UTRA 2970:(2001) 2965:(1998) 2824:family 2805:family 2781:family 2767:(1991) 2698:family 2688:(1979) 2671:B-Netz 2619:(1946) 2530:  2511:  2492:  2473:  2454:  2332:  2324:  2293:. ETSI 2249:  2239:  2050:  1777:  1728:8 June 1656:yle.fi 1439:23 May 1201:MSISDN 1191:(IMSI) 1185:(IMEI) 1105:(EDGE) 968:  927:, and 868:Brazil 787:codecs 771:1 watt 672:, and 599:Munich 312:France 175:packet 165:voice 78:  4948:South 4943:North 4904:JANET 4841:Telex 4831:Radio 4670:Nodes 4665:Links 4586:media 4164:Radio 4149:Pager 4077:Drums 4043:video 4038:image 4028:audio 3898:VANET 3893:MANET 3819:MACAW 3791:AX.25 3776:ALOHA 3654:STDMA 3612:OFDMA 3487:ViLTE 3482:VoLTE 3440:5G NR 3389:STDMA 3377:OFDMA 3320:Other 3306:LTE-M 3291:5G NR 3254:WiBro 3241:WiMAX 3160:WiBro 3073:HSPA+ 3066:HSUPA 3061:HSDPA 2944:WiDEN 2937:Other 2840:Other 2803:3GPP2 2736:Hicap 2731:C-450 2719:Other 2636:Altai 2330:S2CID 2258:(PDF) 2247:S2CID 2225:(PDF) 2014:arXiv 1963:(ZIP) 1839:(PDF) 1828:(PDF) 1689:hs.fi 1666:5 May 1585:5 May 1549:5 May 1507:5 May 1493:"GSM" 1470:5 May 1284:(VLR) 1220:(PCN) 1209:(NMT) 1197:(LTE) 1160:GSM-R 1154:(WAP) 1142:(MMS) 994:Skype 941:FPGAs 744:burst 638:, and 636:femto 626:micro 621:macro 500:Optus 430:HSUPA 426:HSDPA 320:Italy 250:Paris 105:.gsma 5048:ETSI 4960:Asia 4846:UUCP 4806:ISDN 3824:CSMA 3814:MACA 3740:PAMA 3725:PDMA 3707:SDMA 3664:CDMA 3641:TDMA 3629:WDMA 3599:FDMA 3580:and 3497:ViNR 3492:VoNR 3472:MIMO 3445:CDMA 3430:UMTS 3408:SDMA 3401:CDMA 3396:SSMA 3384:TDMA 3372:FDMA 3170:ETSI 3129:IEEE 3056:HSPA 2994:FOMA 2984:UMTS 2949:DECT 2901:GPRS 2852:iDEN 2847:CDPD 2822:AMPS 2779:3GPP 2696:AMPS 2656:AMTS 2631:IMTS 2554:3GPP 2528:ISBN 2509:ISBN 2490:ISBN 2471:ISBN 2452:ISBN 2430:2014 2408:2010 2382:2010 2356:2010 2322:ISSN 2299:2009 2237:ISBN 2186:2011 2154:2011 2127:2009 2082:2011 2061:2023 2048:ISBN 1997:2011 1971:2007 1935:2023 1891:2017 1869:2020 1847:2016 1803:2016 1775:ISBN 1756:2013 1730:2010 1697:2022 1668:2011 1638:2020 1612:2013 1587:2011 1551:2011 1509:2011 1472:2011 1441:2023 1411:2014 1372:2023 1347:2023 1316:2013 1269:RRLP 1213:ORFS 1146:NITZ 1018:ETSI 998:USIM 929:A5/3 925:A5/2 921:A5/1 906:UMTS 886:and 870:and 811:UMTS 769:and 748:TDMA 631:pico 589:GSM 444:The 350:and 314:and 285:and 198:UMTS 190:3GPP 115:The 107:.com 4851:WAN 4821:NGN 4811:LAN 4092:Fax 4033:DCT 3935:FDD 3930:TDD 3903:DTN 3844:HCF 3839:PCF 3834:DCF 3624:WDM 3607:FDM 3477:IMS 3435:LTE 3425:GSM 3085:LTE 2892:GSM 2867:CT2 2862:PHS 2857:PDC 2788:GSM 2775:GSM 2751:CT1 2726:NMT 2676:AMR 2666:ARP 2641:OLT 2626:MTS 2229:doi 2040:doi 1818:in 773:in 754:is 502:in 498:. 486:in 354:by 267:MoU 256:in 121:GSM 103:www 27:GSM 5044:: 3270:5G 3247:) 3193:4G 2963:3G 2765:2G 2686:1G 2614:0G 2328:. 2316:. 2275:. 2253:. 2245:. 2235:. 2203:. 2174:. 2156:. 2099:. 2046:, 2034:, 1988:. 1926:. 1906:. 1834:. 1830:. 1716:. 1699:. 1670:. 1614:. 1589:. 1573:. 1562:^ 1553:. 1537:. 1520:^ 1511:. 1495:. 1484:^ 1474:. 1458:. 1431:. 1427:. 1363:. 1338:. 1327:^ 1318:. 923:, 916:. 777:. 731:. 725:3G 717:2G 681:. 601:, 597:, 324:UK 206:5G 202:4G 196:) 194:3G 159:1G 129:2G 76:3G 4978:) 4974:( 3969:e 3962:t 3955:v 3570:e 3563:t 3556:v 3243:( 3220:) 3216:( 3091:) 3087:( 2777:/ 2588:e 2581:t 2574:v 2536:. 2517:. 2498:. 2479:. 2460:. 2432:. 2410:. 2384:. 2358:. 2336:. 2318:3 2301:. 2279:. 2231:: 2207:. 2188:. 2129:. 2103:. 2042:: 2016:: 1999:. 1973:. 1937:. 1893:. 1871:. 1849:. 1805:. 1783:. 1758:. 1732:. 1640:. 1443:. 1413:. 1374:. 1349:. 217:G 119:( 66:) 23:.

Index

GSM (disambiguation)

Telecommunications
3G
Edit this on Wikidata
www.gsma.com
European Telecommunications Standards Institute
2G
cellular networks
trade mark
GSM Association
Full Rate
Finland
1G
full duplex
telephony
circuit-switched transport
packet
General Packet Radio Service
Enhanced Data Rates for GSM Evolution
3GPP
3G
UMTS
4G
5G
started to shut down their GSM networks

European Conference of Postal and Telecommunications Administrations
Paris
memorandum of understanding

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