> For the complete documentation index, see [llms.txt](https://gsm-hacking.telco-sec.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gsm-hacking.telco-sec.com/2g-in-a-b0x/msc-mobile-switching-center.md).

# MSC - Mobile Switching Center