Like CarGoSki says, you need a DBM32 and not a BM32.
DBM is Digital Button Module for the 1400 serie phones.
BM is Button Module for the 1600 serie phones.
The DBM32 will not work very well on the current releases.
From Q3 they are supported which is in trial right now.
Homo sapiens non urinat in ventum
honey, i fried the IP Office !!!
Sarcasm, it's only one of the services I offer.