Disable SIP ALG on Netgear Router

To disable SIP ALG on a Netgear router:

1. Browse to the router's IP address (192.168.0.1 by default)
2. Enter the username and password (default username: admin, default password: password)
3. In the main menu, select Advanced > WAN Setup
4. Enable the option Disable SIP ALG
5. Click Apply to apply the settings