You can verify if your router is SIP ALG ENABLED by downloading and running our SIP ALG TESTER Program:
Steps to Disable SIP ALG
Log into your Asus router's web interface:
- Open your web browser and enter the router’s IP address (usually http://192.168.1.1 or http://router.asus.com).
Navigate to Advanced Settings:
- On the left side menu, click on WAN.
Configure NAT Pass Through:
- From the tabs across the top, select NAT Pass Through.
- Change SIP Pass Through to Disable.
- Click Apply to save the changes.
By following these steps, you can disable the SIP ALG feature on your Asus router, which can help resolve issues related to SIP-based VoIP services. If you continue to experience problems, consider using the SIP ALG Tester to verify the changes or contact technical support for further assistance.