Instructions for Disabling SIP ALG with a D-Link Router
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.
Disabling SIP ALG for D-Link Router
- 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.