This was the first ISDN card for the Amiga and was also sold under license by BSC. It is a full length Zorro II card.

Jumpers used to set dial regulations, by default they are set for US.

Connectors:
ISDN-IN
ISDN-OUT
Phone Handset Connector
10 jumpers
CINCH connector for audio in
Dial to set the gain.

Thanks to Immo Birnbaum