Disabling SIP ALG - Sonicwall

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 Sonicwall main menu, select VoIP, then choose Settings.

Find the setting for SIP (or SIP transformations) and uncheck, then check Enable consistent NAT and choose save.

If you're prompted to reboot, please do so.