Cisco Linksys SPA122 and SPA2102 Hard Fax Troubleshooting

Updated: 08/12/2024

Symptom

Issues sending fax with Cisco Linksys SPA adapter.

Applies To

  • Cisco Linksys SPA122
  • Cisco Linksys SPA2102
  • Fax

Resolution

Important! These devices are no longer supported.
Here are some things to check before Troubleshooting Issues with Fax Devices using a Cisco/Linksys SPA adapter.
  1. Obtain adapter IP address.
    1. On the phone or fax machine, dial * * * * (the star key 4 times).
    2. At the IVR, enter 110 #.
    3. Note the IP address as it is spoken.
  2. On a computer on the same physical LAN as the adapter, enter the IP address into a browser.
  3. In the adapter web GUI, click Admin Login.
    • Username: admin
    • Password: administrator password
  4. Click Voice > Provisioning.
  5. Ensure both of the following Profile Rule addresses are entered properly.
    • Profile Rule: https://lscfg.8x8.com/linksys/spa1xx.cfg
    • Profile Rule B: https://lscfg.8x8.com/linksys/$MA.cfg
  6. Click Submit.
  7. Click Advanced Settings.
  8. Click Voice.
  9. Click the Line the fax machine is connected to.
  10. Under Audio Configuration, ensure that Preferred Codec is set to G.711.
  11. Ensure that Fax Enable T.38 is set to Yes.
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  12. Click Submit All Changes.
  13. Re-test. If you continue to have issues, continue to Troubleshooting Issues with Fax Devices.