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Collaboration, Voice & AV · Intermediate

Voice Translation Rule

An IOS regular-expression rule that rewrites calling or called numbers, applied through a translation profile on dial peers or voice ports.

Definition

Translation rules use sed-like syntax such as rule 1 /^9\(.*\)/ /\1/ to strip a leading 9, and can also change numbering type and plan. A voice translation-profile associates rules with called, calling or redirect numbers, and the profile is applied to dial peers in the incoming or outgoing direction. The test voice translation-rule command validates rules.

Example

voice translation-rule 1 / rule 1 /^\+1/ // strips +1 before sending numbers to the carrier.

Exam tip

Use test voice translation-rule to confirm behavior; incoming translations occur before outbound dial-peer matching.

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