Dialogic Gateways Connecting through an Asterisk Server

Hi Asterisk Techies,
I have a multiple VOIP gateways with old model Dialogic cards i.e D21H,D41H,D/I4ESC… in different parts within Thailand.I wish to route all these gateways through an Asreisk Server. The Gateways run on Windows NT 4.0 with the ususl Dialogic system software installed.
The Machines hosting Dialogic Cards have each a separate Public IP Address. I do not have an Asterisk server, but will quickly acquire one if I get a positive reply.
Is it possible and How?