BizPhone ATA call dropouts

  1. Restart the ATA by disconnecting its power and Ethernet cables for 10 seconds, then reconnect.
  2. If possible, use a different Ethernet cable to connect your ATA to your modem.
  3. Ensure that your internet connection is not dropping out at the same time as your calls. Select your broadband service from the iiHelp menu to get troubleshooting guides for iiNet broadband connections.
  4. Similarly, check if call dropouts are only occurring when a high-demand function is carried out on your network, such as large file uploads, system updates or content streaming. If possible, schedule these functions to run automatically outside of business hours to avoid impact on your BizPhone service.
  5. Run the BizPhone connection test and check the MOS score on the summary page - a score of 4 or lower will most likely result in call issues. Additionally, make a note of the test result number from both the Speed and VoIP tests.
  6. Ensure that the SIP ALG setting is disabled in your modem settings by checking the VoIP test results from your BizPhone connection test.
    Note: iiNet modems have this setting disabled by default.
  7. Consider enabling QOS (Quality of Service) settings in your modem to allot of a portion of your connection bandwidth for VoIP services only. This can greatly reduce the risk of call dropouts.
  8. Whether the issue is constant or intermittent, please take note of affected calls in the following format:

    Number Called From:
    Number Called To:
    Time/ Date of Call:
    Issue Experienced:
  9. If dropouts consistently occur after a certain length of time, or only occur with calls from certain carriers, we may need to investigate a carrier level issue. Please call us on 13 86 89 if your notes indicate this is the case.
  10. If you suspect an ATA has been damaged, please call us on 13 86 89.
  11. If you're still unable to make or receive calls, please email bizsupport@iinet.net.au with your test result numbers, and reference this troubleshooting article.

Was this information helpful?

Why was it not helpful?

Please select an option





Thank you for your feedback.