BT Business Hub Router problems with SIP ALG

Configuring a BT Business Hub for VoIP

How do I turn off SIP ALG on the Business Hub 5?

Make sure you're using a computer that's connected to your network then -

  1. Open a browser (Internet Explorer, Firefox etc) and type or businesshub.home in the address bar. You'll see the BT Business Hub home page.
  2. Click on ‘Advanced Settings’
  3. Enter your admin password (unless this has been changed, the default admin password can be found on the bottom of the Business Hub 5 or on the plastic pull out on its back).
  4. Click ‘Continue to Advanced Settings’
  5. Click ‘Firewall’ then ‘Configuration’ and scroll down to ‘Application Layer Gateway’
  6. Click Yes next to ‘Disable SIP ALG’ and click ‘Apply’

SIP ALG will then be deactivated on your Business Hub 5.


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