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300-820 · Question #148
300-820 Question #148: Real Exam Question with Answer & Explanation
The correct answer is B: Create a transform on Expressway-C to strip port numbers.. See the full explanation below for the reasoning.
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Question
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 call was dropped with a 404 response code from Expressway-C. The search rule intended for this call-in Expressway-C is configured for Alias Pattern Match, Pattern type "Suffix," and Pattern "example.com". How must the configuration be changed to allow the call?
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".
Topics
#Expressway-C#Call Routing#Transforms#SIP URI Manipulation
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