The process of downloading the Panasonic KX-TGP551T04 VoIP Phone Firmware 12.35 USA driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the Panasonic KX-TGP551T04 VoIP Phone Firmware 12.35 USA driver from the primary server - this is the manufacturer’s Panasonic official website). If the download still fails to run, check whether your anti-virus software is not blocking the connection to the manufacturer server of the Panasonic KX-TGP551T04 VoIP Phone Firmware 12.35 USA diver.