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300-815 · Question #43

An engineer must route all SIP calls in the form of <user>@example.com to the SIP trunk gateway corporate.local. Which two SIP route patterns can be used to accomplish this task? (Choose two.)

The correct answer is D. example.com E. *.*. In Cisco Unified Communications Manager (CUCM), SIP Route Patterns are used to route SIP URI-based calls to specific SIP trunks or gateways. They match against the domain portion (or the entire URI) of an incoming SIP Request-URI. Why D (example.com) is correct: SIP route pattern

Cisco Unified Communications Manager Dial Plan

Question

An engineer must route all SIP calls in the form of <user>@example.com to the SIP trunk gateway corporate.local. Which two SIP route patterns can be used to accomplish this task? (Choose two.)

Options

How the community answered

(48 responses)
  • A
    4% (2)
  • B
    8% (4)
  • C
    2% (1)
  • D
    85% (41)

Explanation

In Cisco Unified Communications Manager (CUCM), SIP Route Patterns are used to route SIP URI-based calls to specific SIP trunks or gateways. They match against the domain portion (or the entire URI) of an incoming SIP Request-URI.

Why D (example.com) is correct: SIP route patterns in CUCM match the domain part of a SIP URI. The pattern example.com will match any SIP URI whose domain is exactly example.com, such as [email protected] or [email protected]. All matched calls are then forwarded to the configured destination - in this case, corporate.local.

Why E (.) is correct: The wildcard * in CUCM SIP route patterns matches any sequence of characters. The pattern *.* matches any domain that contains at least one dot (e.g., example.com, corp.net, etc.). Because [email protected] has a domain with a dot, *.* matches it. This is a broad catch-all pattern that would route all SIP URI calls with a dotted domain to the specified gateway.

Why the others are incorrect:

  • A ([email protected]): This is not a valid SIP route pattern syntax. It looks like a full SIP URI rather than a domain-matching pattern.
  • B (*@example.com): CUCM SIP route patterns do not use the @ symbol to split user and domain portions. They match the domain part only; the @user syntax is not recognized in this context.
  • C (gateway.corporate.local): This is the destination gateway (where calls are sent), not a source-matching route pattern. It would match calls destined to gateway.corporate.local, not example.com.

Topics

#SIP Routing#CUCM Dial Plan#SIP URI Dialing#Wildcard Patterns

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