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

  1. From the router's menu, click Advanced
  2. From the left navigation menu, select Firewall Settings
  3. Under Application Level Gateway (ALG) Configuration, disable SIP
  4. Click save and, if prompted, restart your router.