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Support Centre Troubleshooting Articles SIP ALG Disabling SIP ALG - Draytek

Disabling SIP ALG - Draytek

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

Please review the Known Incompatible Routers article, there are known issues with Draytek hardware that can impact incoming calls.

How to Disable SIP ALG on Draytek Routers

Login to your router's web interface and select NAT > ALG from the menu on the left.

Uncheck Enable ALG, then select OK to confirm your changes. If prompted, restart your router to finalise the change.

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