hey all,
i just bought 3 new kx-t7433 phones for my office. i want to replace 3 analogue phones with these new ones.
i understand that in my office, the digital phones all start with extension 3xx where as the analogue ones start 2xx.
i figured that if i took analogue phone on extension say 205, unplugged it, abd replaced it with a digital phone in socket 305, that would work.
however, although the digital phone powers up and works fine for internal calls, when we try to get an outside line, i get the error
CO not assigned.

any ideas how to fix this?

cheers in advance,

dave