To disable SIP ALG, hit Advanced under the main menu. Choose WAN Setup, and check the box Disable SIP ALG at the bottom.

NOTE: The information provided above is from another OnSIP customer offering these settings for other customers with a similar device. OnSIP does not sell nor monitor equipment and/or it’s firmware updates/etc. The settings of routers can change and are out of the control of OnSIP. For best results, reach out to the manufacturer directly. 

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