Hello all. I work at a WW2 battleship memorial. We are swapping in a Mitel unit to work our original Automatic Electric dial phones. Is there any way to tie one of the Mitel COs into our NEC Elite 192? I'm pretty sure it is pure digital and won't natively support an analog SLT. The cards in it right now are: CPU B500, MIFM, 3 ESI8s, COI4, another ESI8, the external paging card, an empty and last is the voicemail hard drive. I thought I saw an analog card for it. Thanks very much. Terry