Hi,

I want to add an external doorbox to a Nitsuko DX2 system (28i?), I gather from the manuals that I need a DX2NA-4PGDU card in the cabinet to do so but I am unsure on which models of doorbox are compatible with the card. Would a NEC P/N 922450 work with a DX2NA-4PGDU if not can anyone point me towards the correct model or part number?

Cheers,

Brett

I would probably use a viking doorbox on a spare co port

or if you have spare analog ports...set up an anolg phone and have it ring down