Frequently Asked Question - Authentication / Registration on Network is not working.

Smartjac OT series of UICC / SIM cards ranging from 2G SIM cards with XOR support, to advanced multi-application LTE UICC cards with Milenage support, NFC, USIM, ISIM and CSIM.

International Mobile Subscriber Identity. A unique number associated with each mobile phone user. It is stored in the SIM inside the phone and is sent by the phone to the network. It is primarily intended for obtaining information on the use of the Public Land Mobile Network (PLMN) by subscribers. It is also used for other functions such as to compute the Paging Occasions (PO) in LTE. See 3GPP TS22.016 and TS23.003.

A subscriber identity module or subscriber identification module (SIM) is an integrated circuit chip that is intended to securely store the international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephony devices.

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Internet Protocol Multimedia Subsystem. An architectural framework for delivering Internet Protocol (IP) multimedia services via UTRAN and E- UTRAN. See 3GPP TS23.228 and TS23.406.

Using text on a mobile handset to communicate in real time

Operating System. Software that runs on computers and other smart devices and that manages the way they function.

Secure Element. A secure and personalised physical component added to a system to manage users rights and to host secure apps. SE typically consist of a Silicon Chip, a secure Operating System, application software and a secure protocol to communicate to the device. SE can be a removable device (such as UICC or µSD for mobile devices or MIM for M2M connected machines). SE can also be components inside the system.

Base Station. The entity in a radio access network responsible for radio trans- mission and reception in one or more cells to and from the UE. In LTE the BS is known as the eNodeB.

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Home Environment. The HE of a subscriber is responsible for the overall pro- vision and control of the personal service environment to the subscriber. 

HandOver. HO is a procedure by which a mobile terminal changes serving cells (within the same frequency or on different frequencies or even on different Radio Access Technologies (RAT)). See 3GPP TS36.133.