A video device registered with Cisco UCM failed to make an outbound B2B call. From Expressway-C diagnostic logs, an engineer found that the destination pattern is "[email protected]:5061", and the…

Question

Options

• AUpdate the route pattern in Cisco UCM to send calls to "example.com" to the correct port.
• BCreate a transform on Expressway-C to strip port numbers.
• CCreate a call policy rule on Expressway-E to allow calls to port 5061.
• DUpdate the call policy list in Expressway-C to allow calls to "example.com".

• A
  17% (4)
• B
  71% (17)
• C
  8% (2)
• D
  4% (1)

Explanation

The search rule is configured with Pattern type 'Suffix' and Pattern 'example.com', meaning it matches aliases that end with 'example.com'. However, the destination in the call is '[email protected]:5061' - the port ':5061' is appended to the alias string. Because the full string ends with ':5061' and not 'example.com', the suffix match fails and the call returns a 404. The fix is to create a transform on Expressway-C that strips the port number from the alias (e.g., using a regex to remove ':[0-9]+$'), so the alias becomes '[email protected]' and correctly matches the suffix search rule. No UCM route pattern change or call policy modification is needed.

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