We'd like to purchase some SPA3102's and place them in Japan to place calls through local POTS lines. The ones for sale here in the US all appear to be the -NA (North America) versions.
Can anyone tell me if these are viable in Japan, either as-is or through some change in settings? I don't want to be inadvertantly placing a prohibited impedance on the lines, and of course, I'd like the SPA3102's to work. :-)