New Zealand Information Security Manual (NZISM)
Chapter 11: Communications Systems and Devices – New Zealand Information Security Manual (NZISM)

New Zealand Information Security Manual (NZISM) 11.3.12.C.03: 11.3.12.C.03 Off-hook audio protection recommended at all classifications

Across all classifications, agencies should ensure that telephones not accredited for classified transmission, where classified information might be discussed nearby, have their off-hook audio protection features in use.

Maintained by Gerard BlokdykVerified against the published standard Control text last updated

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  • ISM-0236 Off-hook audio protection features

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