Cannot get 2050i softphone to come up thru adelphia cable (supposed to be business cable modem), I know I need ports (UDP-RDP) 5000, 7000, 28000-28255, 51000-51200. But Adelphia tells me they're only blocking 135-139 both ways, 161, 162, 445, 520, 1900, 27374, 39213, 3128. What's up?
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