The Cisco RV 120W
Firmware version 1.4.xx or newer is able to disable the SIP ALG.
Previous versions of the firmware are incompatible.
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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