> For the complete documentation index, see [llms.txt](https://hdsd.vpbanks.com.vn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hdsd.vpbanks.com.vn/cai-dat-bao-mat/dang-ky-dich-vu-sms.md).

# Đăng ký dịch vụ SMS