Australian Information Security Manual ISM-0232: Encrypting telephone traffic over external systems

What else in your programme already covers this

This control maps to 1 controls across 1 other frameworks. If you already hold one of them, the evidence you collected for it is the starting point here rather than new work.

Every mapping shown was judged rather than inferred from wording similarity, and the ones that failed review are published too. See the coverage reports and what was rejected.

Other controls in Guidelines for communications systems

• ISM-0229 Permitted classification for telephone conversations
• ISM-0230 Awareness of non-secure telephone risks
• ISM-0231 Visual indication of connection type
• ISM-0233 Cordless telephone handsets and headsets
• ISM-0235 Speakerphones in TOP SECRET areas
• ISM-0236 Off-hook audio protection features
• ISM-0245 Connecting MFDs to digital telephone systems
• ISM-0546 Video-aware and voice-aware firewalls and proxies