How Do SIM Cards Work?

How do SIM Cards work? – SIMtrace

Osmocom Dev Call : Program your sim card with Pysim-shell By Harald Welte

osmocom近期更新了Pysim，在原来的基础上，增加了shell模式，读写SIM卡操作可以像mysql的增删改查一样操作

https://meeting4.franken.de/playback/presentation/2.0/playback.html?meetingId=10e07e078472a1876b5c23655123bfd50bc4b187-1617991215535

sysmoUSIM / sysmoISIM User Manual By Harald Welte

蓝色跟橙色的SIM卡可用于2G 3G 4G NB基站（不支持5G）

黑色版采用了新标准，增加了对5G的支持

点击以访问 sysmousim-manual.pdf

SIM 卡工具

https://github.com/cn0xroot/BTS_Research/blob/main/sim_card.md

A curated list of telco resources and projects

https://github.com/ravens/awesome-telco