Question 40 of 52 from exam 300-820-CLCEI: Implementing Cisco Collaboration Cloud and Edge Solutions

Question 40 of 52 from exam 300-820-CLCEI: Implementing Cisco Collaboration Cloud and Edge Solutions

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Expressway-E Rule name Enter Block ISDN call for example Description Enter Block everything (including nonregistered endpoints) Priority Enter 41 Protocol Any Source Request must be authenticated _| No Mode Alias pattern match Pattern type Regex Pattern string Enter (9\d+) (.*) (@example.com) Pattern behavior Replace Replace string Enter do-not-route-this-call for example On successful match Stop Target TraversalZone State Enabled

Refer to the exhibit.

An ISDN gateway is registered to Expressway-C with a prefix of 9 and/or it has a neighbor zone specified that routes calls starting with a 9

Which value should be entered into the "Source" field to prevent toll fraud regardless at origin of the call?

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A. B. C. D.

D.

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