Configure the NVX 620 Invoxia November 17, 2015 18:52 Updated The following video explains how to configure your NVX 620 to: - your SIP account, - choose your dial out options. Related articles What is the PC Ethernet port for? How to pair your NVX 620 via Bluetooth? Adjusting the volume for music listening in Bluetooth. How can I choose to call through my SIP or mobile line? What smartphones and tablets are compatibles with the NVX 620?