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Hello, I changed ISPs a few weeks ago and now I'm on cable. In doing so, I lost the ability to use the DSL as a FAX line. So, I bought an OOMA. Turns out it uses a number of ports, three of which are reserved, 53 TCP/UDP, 110 TCP and 443 TCP. These ports have already been port forwarded from my cable modem/router to my server. I'm thinking this isn't going to work unless I change