You are troubleshooting a SIP routing issue and you have access to the SIP call flow processed by the Session Border Controller. Which two steps are valid for troubleshooting this type of issues?…

Question

Options

• AIt is necessary to locate the SIP session to troubleshoot and check if there is a 404 Routes Not Found
• BIt is recommended to look for 183 Session Progress SIP error messages that indicate routing issues.
• CIt is recommended to check the called number by looking at the Request-URI of the INVITE message
• DIt is recommended to find the CANCEL method received by the Session Border Controller which
• EIt is necessary to find an initial INVITE received by the Session Border Controller which gets a 503

• A
  14% (5)
• B
  56% (20)
• C
  6% (2)
• D
  25% (9)

Explanation

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