Disabling SIP ALG - D-Link

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

Disabling SIP ALG

From the router's menu, along the top of the screen, click Features > Firewall settings > Advanced Settings > ALG Config > SIP = Disabled

If you see "Enabled", click where it says Enabled, and the setting will change to Disabled.

Older Router Interface:

From the router's menu, click Advanced

From the left navigation menu, select Firewall Settings

Under Application Level Gateway (ALG) Configuration, disable SIP

Click save and, if prompted, restart your router.