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Troubleshooting & Diagnostics Flashcards

6 cards from real ACA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. What is the purpose of the AudioCodes 'Call Detail Record (CDR)' log?

    Answer: To record per-call statistics including duration, codec, disconnect cause, and endpoint details for billing and troubleshooting

    CDR logs capture a complete record for every call including caller/called ID, start/end times, duration, codec used, disconnect cause code, and IP addresses for auditing and billing.

  2. An AudioCodes gateway shows 'Registration Failed' in the status page. Which troubleshooting step should be performed first?

    Answer: Check the SIP proxy address, port, credentials, and network reachability from the gateway

    Registration failures are most commonly caused by incorrect proxy address/port, wrong credentials, or network connectivity issues, all of which should be verified before more disruptive steps.

  3. What does 'ICMP Port Unreachable' response to SIP UDP packets indicate in an AudioCodes deployment?

    Answer: The remote SIP server is not listening on the destination UDP port, confirming the SIP service is down or misconfigured

    An ICMP Port Unreachable message in response to a UDP SIP packet means no application is listening on that port at the destination, indicating the SIP service is stopped or on a different port.

  4. During an AudioCodes network capture analysis, which filter in Wireshark quickly isolates SIP signaling traffic?

    Answer: sip

    The 'sip' display filter in Wireshark shows only SIP protocol messages, providing the cleanest view of signaling traffic regardless of the transport port used.

  5. What does 'Alternative Routing' (fallback routing) configuration in AudioCodes do when a primary SIP trunk call fails?

    Answer: Automatically retries the call through a secondary route or trunk group based on configured failure reason codes

    Alternative Routing allows the gateway to detect specific SIP failure responses (e.g., 503, 408) and automatically retry the call via a configured secondary route without caller intervention.

  6. Which AudioCodes status indicator in the web GUI confirms that an analog FXO port has detected a PSTN line connection?

    Answer: Green LED or 'Line Connected' status on the FXO port status page

    The FXO port status page in the AudioCodes web GUI shows a 'Line Connected' state (or equivalent green indicator) when the physical PSTN line voltage is detected on that port.