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Support Centre Troubleshooting Articles SIP ALG Disabling SIP ALG - Sophos XG

Disabling SIP ALG - Sophos XG

Note that, as this process may temporarily interrupt your internet connection and phone service, we recommend doing this in an off-peak period or outside of business hours.

Learn more about SIP ALG in our knowledge base article here: SIP ALG

Sophos firmware upgrades can re-enable the SIP ALG feature, even if it has been previously disabled. Please take note of this before performing any upgrades


Disabling SIP ALG

Login to the Sophos CLI using Telnet or SSH. You can also access the CLI from admin > Console in the upper right corner of the Admin Console screen.


Enter option 4 to connect to the Device Console


Execute the following command:

console> system system_modules sip unload
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