During the early 1980s, analog cellular telephone systems were experiencing rapid growth in Europe, particularly in Scandinavia and the United Kingdom, but also in France and Germany. Each country developed its own system, which was incompatible with everyone else's in equipment and operation. This was an undesirable situation, because not only was the mobile equipment limited to operation within national boundaries, which in a unified Europe were increasingly unimportant, but there was also a very limited market for each type of equipment, so economies of scale and the subsequent savings could not be realized.
The Europeans realized this early on, and in 1982 the Conference of European Posts and Telegraphs (CEPT) formed a study group called the Groupe Spécial Mobile (GSM) to study and develop a pan-European public land mobile system. The proposed system had to meet certain criteria:
Good subjective speech quality
Low terminal and service cost
Support for international roaming
Ability to support handheld terminals
Support for range of new services and facilities
Spectral efficiency
ISDN compatibility
In 1989, GSM responsibility was transferred to the European Telecommunication Standards Institute (ETSI), and phase I of the GSM specifications were published in 1990. Commercial service was started in mid-1991, and by 1993 there were 36 GSM networks in 22 countries. Although standardized in Europe, GSM is not only a European standard. Over 200 GSM networks (including DCS1800 and PCS1900) are operational in 110 countries around the world. In the beginning of 1994, there were 1.3 million subscribers worldwide , which had grown to more than 55 million by October 1997. With North America making a delayed entry into the GSM field with a derivative of GSM called PCS1900, GSM systems exist on every continent, and the acronym GSM now aptly stands for Global System for Mobile communications.
The developers of GSM chose an unproven (at the time) digital system, as opposed to the then-standard analog cellular systems like AMPS in the United States and TACS in the United Kingdom. They had faith that advancements in compression algorithms and digital signal processors would allow the fulfillment of the original criteria and the continual improvement of the system in terms of quality and cost. The over 8000 pages of GSM recommendations try to allow flexibility and competitive innovation among suppliers, but provide enough standardization to guarantee proper interworking between the components of the system. This is done by providing functional and interface descriptions for each of the functional entities defined in the system.
TIMELINE :
1982 - The Beginning
Nordic Telecom and Netherlands PTT propose to CEPT (Conference of European Post and Telecommunications) the development of a new digital cellular standard that would cope with the ever a burgeoning demands on European mobile networks.
The European Commission (EC) issues a directive which requires member states to reserve frequencies in the 900 MHz band for GSM to allow for roaming.
1986
Main GSM radio transmission techniques are chosen
1987
September - 13 operators and administrators from 12 areas in the CEPT GSM advisory group sign the charter GSM (Groupe Spéciale Mobile) MoU "Club" agreement, with a launch date of 1 July 1991 .
The original French name was later changed to Global System for Mobile Communications , but the original GSM acronym stuck.
GSM spec drafted.
1989
The European Telecommunications Standards Institute ( ETSI ) defined GSM as the internationally accepted digital cellular telephony standard
GSM becomes an ETSI technical committee
1990
Phase 1 GSM 900 specifications are frozen
DCS adaptation starts
Validation systems implemented
First GSM World congress in Rome with 650 Participants
1991
First GSM spec demonstrated
DCS specifications are frozen
GSM World Congress Nice has 690 Participants
1992
January - First GSM network operator is Oy Radiolinja Ab in Finland
December 1992 - 13 networks on air in 7 areas
GSM World Congress Berlin - 630 Participants
1993
GSM demonstrated for the first time in Africa at Telkom '93 in Cape Town
Roaming agreements between several operators established
December 1993 - 32 networks on air in 18 areas
GSM World Congress Lisbon with 760 Participants
Telkom '93 held in Cape Town. First GSM systems shown.
1994
First GSM networks in Africa launched in South Africa
Phase 2 data/fax bearer services launched
Vodacom becomes first GSM network in the world to implement data/fax
GSM World Congress Athens with 780 Participants
December 1994 - 69 networks on air in 43 areas
1995
GSM MoU is formally registered as an Association registered in Switzerland - 156 members from 86 areas.
GSM World Congress Madrid with 1400 Participants
December 1995 117 networks on air in 69 areas
Fax, data and SMS roaming started
GSM phase 2 standardization is completed, including adaptation for PCS 1900 (PCS)
First PCS 1900 network live 'on air' in the USA
Telecom '95 Geneva - Nokia shows 33.6 kbps multimedia data via GSM
Namibia goes on-line
Ericsson 337 wins GSM phone of the year
US FCC auctions off PCS licenses
1996
GSM MoU is formally registered as an Association registered in Switzerland
December 1996 120 networks on air in 84 areas
GSM World Congress in Cannes
GSM MoU Plenary held in Atlanta GA, USA
8K SIM launched
Pre-Paid GSM SIM Cards launched
Bundled billing introduced in South Africa
Libya goes on-line
Option International launches world's first GSM/Fixed-line modem
1997
Zimbabwe goes live
GSM World Congress Cannes 21/2/97
Mozambique goes live
Iridium birds launched
First dual-band GSM 900-1900 phone launched by Bosch
1998
Botswana GSM goes live
GSM World Congress Cannes (2/98)
Vodacom Introduces Free VoiceMail
MTN Gets Uganda Tender
GSM SIM Cracked in USA
Over 2m GSM 1900 users
MTN Gets Rwanda Tender
MTN follows with free voicemail
Rwanda GSM Live
First HSCSD trials in Singapore
Vodacom launches Yebo!Net 10/98
Iridium Live 11/98
First GSM Africa Conference (11/98)
125m GSM 900/1800/1900 users worldwide (12/98)
Option International launches FirstFone
MTN launches CarryOver minutes
1999
GSM Conference in Cannes 2/99
165m GSM 900/1800/1900 users worldwide
GPRS trials begin and USA and Scandanavia 1/99
WAP trials in France and Italy 1/99
CellExpo Africa 5/99
Eight Bidders for Third SA Cell License
GSM MoU Joins 3GPP
MTN SA Head of GSM MoU
First GPRS networks go live
Bluetooth specification v1.0 released
2000
GSM Conference in Cannes 3/2000
By 12/2000 480m GSM 900/1800/1900 users worldwide
First GPRS networks roll out
Mobey Forum Launched
MeT Forum Launched
Location Interoperability Forum Launched
First GPRS terminals seen
Nokia releases SmartMessaging spec
SyncML spec released
2001
GSM Conference in Cannes 2/2001
By 5/2001 500m GSM 900/1800/1900 users worldwide
16 billion SMS message sent in April 2001
500 million people are GSM users (4/01)
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