[Troubleshooting] Landline Call Failed

1: Verify Value-Added License Assignment

Ensure that the corresponding Apartment has been assigned a value-added license. If not, assign the license and retest.

2: Verify Landline Configuration

-Navigate to the Landline configuration interface. Verify that the phone number is reachable and correctly formatted according to local telephone number standards.

Common format examples:

US: +1-XXX-XXX-XXXX

UK: +44-XXXX-XXXXXX

3: Check Remaining Call Transfer Credits

1. Ensure that the Remain Call Transfer has sufficient remaining credits. Check the current balance of call transfer credits in the system.
2. If the call transfer time are exhausted, the call will fail. Replenish as needed and retest.

Refer to the screenshot below for reference (insert reference image here).

4: Escalate to Dnake Support

If the issue persists after completing all previous steps, please collect the following information and escalate to the internal engineering team for further investigation:

Provide the exact model number and current firmware version of the access device.

Export a complete log and network packet capture during the entire landline calling process.

Confirm whether the feature was working properly before, and provide details of any recent changes to the device environment (e.g., network changes, firmware updates, configuration modifications, etc.).