ISDN BRI MODEM Daughter card used on the Dual 2.048 MBPS E1 Card (90-0565-01/08) for ISDN applications where conformance to interim CTR-4 layer one is required. This module is mutually exclusive with the Voice Compr ession Module (90-0566-01) and the Voic

Any questions?

Please use the following form to request information.

Please specify your question about ISDN BRI MODEM Daughter card used on the Dual 2.048 MBPS E1 Card (90-0565-01/08) for ISDN applications where conformance to interim CTR-4 layer one is required. This module is mutually exclusive with the Voice Compr ession Module (90-0566-01) and the Voic *

Type the numbers you see in the picture below