01.eSIM
eSIM, known as Embedded-SIM, or Embedded SIM, is a programmable, electronic SIM card technology whose main feature is that it does not require a physical slot, but rather an embedded chip that is integrated directly into the device's circuit board or inside other devices.
Hardware part_
Integrated Circuit (IC) Chip: At the heart of the eSIM is a small IC chip that is built into the device's motherboard, similar to a physical SIM card. It contains the necessary hardware (CPU, ROM, RAM, EEPROM and serial communication unit) for storing and processing SIM data.
Software part_
Operating System (OS): The eSIM chip runs a dedicated operating system, often referred to as eUICC (Embedded Universal Integrated Circuit Card), which manages the SIM's functions, including data storage, secure processing and communication.
eSIM Production Process
① Chip Manufacturing
② Chip testing
③ Integration into devices
④ Embedded software loading
⑤ Functional testing and verification
Virtual SIM (vSIM) is a SIM card technology without a physical form factor that allows devices to realize communication functions through software, including SoftSIM, CloudSIM, and others.
02.Virtual SIM (vSIM)
Virtual SIM (vSIM) is a SIM card technology without a physical form factor that allows devices to realize communication functions through software, including SoftSIM, CloudSIM, and others.
SoftSIM controls the information written to SoftSIM through the terminal provider, and the user purchases and uses communication services directly through the software without the intervention of the operator, which cuts off the direct connection between the user and the operator.
CloudSIM is a kind of SIM card function realized based on cloud computing technology, where users use network services on their devices through cloud services.
03.SIM service activation process
CloudSIM integrates the traffic resources of each operator into the cloud, selects operators according to the signal and network quality of different regions, and pushes them to the terminals to provide users with the best network services. The inclusion of multiple operators facilitates users to flexibly choose more favorable packages.
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