> For the complete documentation index, see [llms.txt](https://itu.gitbook.io/ss7-vulnerability-security-controls/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://itu.gitbook.io/ss7-vulnerability-security-controls/itu-t-technical-standards-for-mnos-to-address-ss7-vulnerabilities.md).

# ITU-T Technical standards for MNO's to address SS7 Vulnerabilities

## 1.  ITU-T Q.3057: [Signalling requirements and architecture for interconnection between trustable network entities](https://www.itu.int/rec/T-REC-Q.3057/en)

Recommendation ITU-T Q.3057 specifies the signalling architecture and requirements for interconnection between trustable network entities in support of existing and emerging networks. Based on the architecture, it specifies the interfaces and signalling requirements between the functional entities and signalling procedures to be applied.