4 Basic Rate Interface ports (I.421) for TE and NT mode
Hardware DTMF detection
Conference bridge
PCM bus connectors daisy chaining of max. 4 cards
4 dual-color LEDs (layer 1 state indicators)
Active channel switching (across multiple cards over the external PCM bus)
TRB3/TRB3-A1 certified
Point-to-Point (TE/NT) and Point-to-Multipoint (TE/NT) EuroISDN protocol stack
Suitable for 3.3 volts and 5.0 volts 32 bit PCI 2.2 slots

Application:

ISDN BRI PBX
ISDN least cost router
Voice over IP BRI gateways
VoIP integration of ISDN equipment
PBX to PBX trunking
IVR