Dating sim guide

17-Jul-2019 21:58

(There is an identical ETSI specification with different numbering.) ETSI and 3GPP maintain the SIM specifications.

The main specifications are: ETSI TS 102 223, ETSI TS 102 241, ETSI TS 102 588, and ETSI TS 131 111.

(Refer to GSM 11.11 This is used by network operators to store information on preferred networks, mostly used when the SIM is not in its home network but is roaming.

The network operator that issued the SIM card can use this to have a phone connect to a preferred network that is more economic for the provider instead of having to pay the network operator that the phone 'saw' first.

With the development of UMTS the specification work was partially transferred to 3GPP.

The SIM also stores other carrier-specific data such as the SMSC (Short Message Service Center) number, Service Provider Name (SPN), Service Dialing Numbers (SDN), Advice-Of-Charge parameters and Value Added Service (VAS) applications.

The first UICC smart cards were the size of credit and bank cards; sizes were reduced several times over the years, usually keeping electrical contacts the same, so that a larger card could be cut down to a smaller size.

A SIM card contains its unique serial number (ICCID), international mobile subscriber identity (IMSI) number, security authentication and ciphering information, temporary information related to the local network, a list of the services the user has access to, and two passwords: a personal identification number (PIN) for ordinary use, and a personal unblocking code (PUK) for PIN unlocking.

To confuse matters more, SIM factories seem to have varying ways of delivering electronic copies of SIM personalization datasets.

Some datasets are without the ICCID checksum digit, others are with the digit.

The SIM also stores other carrier-specific data such as the SMSC (Short Message Service Center) number, Service Provider Name (SPN), Service Dialing Numbers (SDN), Advice-Of-Charge parameters and Value Added Service (VAS) applications.The first UICC smart cards were the size of credit and bank cards; sizes were reduced several times over the years, usually keeping electrical contacts the same, so that a larger card could be cut down to a smaller size.A SIM card contains its unique serial number (ICCID), international mobile subscriber identity (IMSI) number, security authentication and ciphering information, temporary information related to the local network, a list of the services the user has access to, and two passwords: a personal identification number (PIN) for ordinary use, and a personal unblocking code (PUK) for PIN unlocking.To confuse matters more, SIM factories seem to have varying ways of delivering electronic copies of SIM personalization datasets.Some datasets are without the ICCID checksum digit, others are with the digit.The ICCID is defined by the ITU-T recommendation E.118 as the Primary Account Number.