ISDN Cards Support for FreeBSD?

Elik asks "What available ISDN cards are available for FreeBSD that is designed in US, that works extremely well with FreeBSD 2.2.8 and FreeBSD 3.3 and 3.4 and upcoming 4.0? Reason I been asking this is that in comparison to Linux's documentation, there is not much documenations can be found regarding the hardware on the ISDN cards, except for the reference to the ISDN4BSD which seems only to cover Europe's support for the ISDN connection, which is not what I need. Any help there for this?"