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Pre-paid GSM SIM cards were launched in 1996 and worldwide GSM subscribers passed 100 million in 1998.
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Pre-paid and GSM
* Network Name ( Pre-paid GSM Mobile ): Namaste ( 429-01 )
Pre-paid and SIM
* Everyday Mobile – Pre-paid mobile service running on the Optus network – $ 2 SIM cards are purchased in stores and recharge is available in store or online.
Pre-paid and .
Pre-paid legal services have existed since the early 1900s, and have increased in popularity since the 1970s.
Pre-paid legal plans typically offer, through participating attorneys and law firms, certain affordable civil law and criminal law services to the general public for a fixed, recurring charge.
Pre-paid legal services, like medical plans, can be delivered by a closed provider system or an open provider system.
* 3: Pre-paid tickets to a movie, play or other entertainment.
* Pre-paid Property Insurance, paid by the buyer but may be reimbursed by the seller.
GSM and SIM
UMTS phones can use a Universal Subscriber Identity Module, USIM ( based on GSM's SIM ) and also work ( including UMTS services ) with GSM SIM cards.
A ( U ) SIM can be moved to another UMTS or GSM phone, and the phone will take on the user details of the ( U ) SIM, meaning it is the ( U ) SIM ( not the phone ) which determines the phone number of the phone and the billing for calls made from the phone.
* SIM Application Toolkit, part of GSM mobile phone systems
Telstra in Australia allows postpay GSM subscribers to use their SIM card.
An International Mobile Subscriber Identity or IMSI () is a unique identification associated with all GSM, UMTS and LTE network SIM cards.
This number is provisioned in the phone directly or in the R-UIM card ( a CDMA analogue equivalent to a SIM card in GSM ).
Most GSM mobile phones can dial emergency calls even when the phone keyboard is locked, the phone is without a SIM card, or an emergency number is entered instead of the PIN.
On some networks a GSM phone without a SIM card may be used to make emergency calls and most GSM phones accept a larger list of emergency numbers without SIM card, such as 112, 911, 118, 119, 000, 110, 08, and 999.
However, some GSM networks will not accept emergency calls from phones without a SIM card, or even require a SIM card that has credit.
Also, GSM phones sold in some countries like Singapore do not accept 112 as an emergency number even if they have a SIM card inserted.
Most modern iDEN handsets use SIM cards, similar to, but incompatible with GSM handsets ' SIM cards.
This configuration is necessary because older GSM only handsets are solely compatible with the SIM and some UMTS security enhancements do rely on the USIM.
The use of SIM cards is mandatory in GSM devices.
Sometimes these SIM cards work in regular GSM phones and also allow GSM customers to roam in satellite networks by using their own SIM card in a satellite phone.
GSM and cards
In 2002, NTT DoCoMo's FOMA 3G network was the first commercial UMTS network — using a pre-release specification, it was initially incompatible with the UMTS standard at the radio level but used standard USIM cards, meaning USIM card based roaming was possible ( transferring the USIM card into a UMTS or GSM phone when travelling ).
The Subscriber Identity Module Expert Group was a committee of specialists assembled by the European Telecommunications Standards Institute ( ETSI ) to draw up the specifications ( GSM 11. 11 ) for interfacing between smart cards and mobile telephones.
The Globalstar system uses the Qualcomm CDMA air interface ; however, the Ericsson and Telit phones accept standard GSM SIM cards, while the Qualcomm GSP-1600 / 1700 phones do not have a SIM card interface, but use CDMA / IS-41 based authentication.
Commands followed by " 7816-4 " are defined in ISO / IEC 7816-4 and are interindustry commands used for many chip card applications such as GSM SIM cards.
The intent of application selection was to allow cards to contain completely different applications, for example GSM and EMV.
An A3 / A8 algorithm is implemented in Subscriber Identity Module ( SIM ) cards and in GSM network Authentication Centres.
Among the many available modules were auxiliary memory, game plug-ins, GPS navigation receivers, cameras, GSM and CDMA mobile phones, versatile infrared remote controls, wired and wireless network interface cards, Bluetooth modules, MP3 players, cordless phones with answering machines, and voice recorders.
Often Internet access is not available, for example, because the device is used to provide network access-such as Wireless, GSM or Ethernet cards.
Other GSM handsets will not accept TracFone SIM cards, even if unlocked.
It is widely used in SIM cards ( used in GSM mobile phones ) and ATM cards.
GT & T provides wireless TDMA and GSM services under the names Cellink and Cellink Plus ; a prepaid service is also available with the ' Freedom Phone ' and its prepaid cards.
Thuraya has concluded roaming agreements with over 300 wireless ( cellular ) operators around the world, providing its customers the ability of using their Thuraya phones with standard GSM SIM cards.
Thuraya SIM cards will work in regular GSM telephones and ordinary GSM SIM cards can be used on the satellite network as long as the GSM provider has a roaming agreement with Thuraya.
GSM and were
Phase I of the GSM specifications were published in 1990.
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 2002 the first multimedia messaging services ( MMS ) were introduced and the first GSM network in the 800 MHz frequency band became operational.
There were three major organizations providing GSM services and 120 internet service providers.
In 1994 the first GSM networks in Africa were launched in South Africa .< ref >
The discussions on the GSM services were concluded in the recommendation GSM 02. 03 " TeleServices supported by a GSM PLMN ".
This followed a long period during which customers were encouraged to switch to GSM services.
Customers who switched network were able to keep their phone number, but the ( 088 ) prefix was changed to either 087 ( Eircell ) GSM or 086 ( Esat Digifone, now O2 Ireland ) GSM.
Japan was the first country to adopt 3G technologies, and since they had not used GSM previously they had no need to build GSM compatibility into their handsets and their 3G handsets were smaller than those available elsewhere.
The early 3G handsets and modems were specific to the frequencies required in their country, which meant they could only roam to other countries on the same 3G frequency ( though they can fall back to the older GSM standard ).
Moreover, with the help of French manufacturers, the numerical switching, the Minitel and the GSM norm were invented by engineers and CNET researchers.
Second generation 2G cellular telecom networks were commercially launched on the GSM standard in Finland by Radiolinja ( now part of Elisa Oyj ) in 1991.
Though both were initially kept secret, the general design was leaked in 1994 and the algorithms were entirely reverse engineered in 1999 by Marc Briceno from a GSM telephone.
SMS and CSD were both available as part of the GSM protocol, and IS-136 implemented them in a nearly identical fashion.
They operate a GSM / GPRS / EDGE / UMTS ( HSPA +) cellular communications network under licence from the Commission for Communications Regulation ( ComReg ), and were the third entrant in the market, after Vodafone Ireland and O2 Ireland.
There were a few car phones available, including the Nokia 810 and more recently the Motorola VC6096 for use with GSM networks and a car phone made by NAL Research for the Iridium satellite network.
As the numbers were introduced over time, it is possible to recognize the age of a number: The oldest GSM numbers start with 1390 ..., the second oldest 1380 ... and 1300 ... Keeping the same number over time is somewhat associated with stability and reliability of the owner.
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