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CCNP Voice

Understanding CallManager Route Filters

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The concept of route filters is associated with a famous route pattern wildcard: the @ symbol. As a brief review, a route pattern written in the <something>@<something> implicitly tells CUCM to generate as many route patterns as the numbering plan ... Read More »

CUCM Call Classification

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Call classification is a concept related to route patterns and to toll fraud. We will discuss toll fraud in a separate post. Call classification puts a call into one of two categories: OnNet or OffNet. In its simple form, an ... Read More »

Outside Dial Tone

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Outside dial tone is an option that allows a route pattern to play a secondary dial tone when it is matched. You will hear the secondary dial tone as soon as the call routing component selects the best match route ... Read More »

Cisco CAPPS Study Material

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As you may know, the Cisco CCNP Voice has been upgraded to version 8. One important and fun exam of the CCNP Voice is the CAPPS exam. Here is a list of Cisco CAPPS study material you can use to ... Read More »

CUCM Route Patterns

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Route patterns are the fundamental part of the CUCM route plan. They are used to route internal digit patterns inside a CUCM cluster, or external digit patterns to the PSTN. Their equivalent in the Cisco Unified Communications Manager Express world ... Read More »

CUCM Interdigit Timeout

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CUCM interdigit timeout is the time that you have between digits that you dial. Suppose that Cisco CUCM interdigit timeout is configured as 3 seconds. This means that, when you dial a string of 6 digits, you have at maximum ... Read More »

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