I have a client with a Cisco 2811 with primarily Cisco 7960 phones configured off of it. Recently hey switched their telecommunications provider but didn’t get a POTS line for the fax machine. I am going to try to configure a PAP2T-NA to convert from SIP to POTS for the fax machine to see if it works but first wanted to make sure he PAP2T-NA had the latest and greatest firmware on it. Upgrading the firmware is really easy with an application that is downloaded with the firmware itself. Follow the directions below to upgrade the firmware on your Linksys PAP2T-NA.