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Risky Thinking
On Risk Management, Business Continuity, and Security
26 February, 2017
Risk Register, Business Impact Analysis, or Disaster Timeline
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Call Tree (Definition)

A telephone procedure which can be used to notify staff of an emergency.

A call tree is typically used to notify staff out of hours. A common arrangement is that one person will call a small group of staff members with a message, then those persons will phone other staff and pass on the message, until finally all relevant members of staff have received the message.

To ensure that a call tree is effective it should be regularly tested: missing or changed phone numbers can severely degrade the performance of a call tree.

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