The process of downloading the Aastra 622d SIP Phone Firmware 4.01SP1 driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the Aastra 622d SIP Phone Firmware 4.01SP1 driver from the primary server - this is the manufacturer’s Aastra 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 Aastra 622d SIP Phone Firmware 4.01SP1 diver.