Network Box ITP-M-295i
https://www.network-box.com/nb5-mseries

To disable the SIP ALG:

-'module proxy-appid-navl' & 'module proxy-appid-navlite' both appear to act as application layer gateways.  They should be set to 'disable'.

-disabling these modules caused no lapse in network connectivity, but the changes do not apply until after restarting the Network Box router. Restart the router from the menu on the front of the appliance.

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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