7Introduction to USIM_ESIM_UICC_ISIM_5G SIM

• SIM


  Subscriber Identity Module - a small, removable smart card used in mobile devices to uniquely identify and authenticate the subscriber to a mobile network
• SIM card


  • Stores the International Mobile Subscriber Identity (IMSI) - a unique identifier associated with the subscriber's account
  • Stores essential subscriber information like mobile number, network provider, and access credentials
  • Provides secure storage for sensitive information using encryption algorithms and mechanisms
  • Enables subscribers to access mobile networks and avail services like voice calls, SMS, and mobile data
  • Personalized and configured with specific network settings and credentials during activation
  • Plays a crucial role in international roaming by allowing subscribers to use local SIM cards from foreign networks
• SIM Lock


  A restriction that locks a device to a specific network, preventing the usage of other network SIM cards
• SIM Applications


  SIM cards can host various applications like mobile banking, payment systems, contactless services, and secure storage of digital certificates
• SIM card sizes


  • Full-Size SIM (1FF)
  • Mini-SIM (2FF)
  • Micro-SIM (3FF)
  • Nano-SIM (4FF)
  • Embedded SIM (eSIM)
  • Integrated SIM (iSIM)
• USIM


  Universal Subscriber Identity Module - a type of SIM card used in 3G and 4G networks, providing secure identification and authentication for mobile network subscribers
• eSIM


  Embedded Subscriber Identity Module - a SIM card embedded directly into a device, eliminating the need for a physical SIM card, enabling remote provisioning and flexibility in switching between operators
• UICC


  Universal Integrated Circuit Card - a smart card that contains a SIM card for mobile communication, providing secure storage for subscriber information, authentication, and encryption, and supporting additional applications
• iSIM


  Integrated SIM - a SIM card that is integrated directly into the device's chipset or processor, eliminating the need for a physical SIM card and offering a more compact form factor suitable for IoT devices and wearables
• 5G SIM


  A SIM card specifically designed for 5G networks, supporting the unique features and requirements of 5G technology, including enhanced security, authentication, privacy, network slicing, and virtual SIM capabilities