The drivers can handle the user and network side of euroISDN, AT&T 4ESS, DMS 100, Lucent 5E and National ISDN 2 signalling
Multiple single E1 PCI ISDN cards can be interconnected over an external PCM bus. The card's active channel switching capability (to bridge B channels on the card without latency and not using the host CPU) is also working over the external PCM bus (e.g. B channels on different cards can be actively switched).
Features
# 1 Primary Rate Interface port for CPE
and NET operation
# DTMF detection
# Conference bridge
# PCM bus connectors
(PCM30, PCM64, PCM128)
# 2 x 4 dual-color LEDs (layer 1 state
indicators)
# active channel switching (across multiple cards
over the external PCM bus)
# Point-to-Point (TE / NT) and Point-to-Multipoint
(TE / NT)
# PRI ISDN protocol stack suitable for 3.3 volts
and 5.0 volts 32 bit PCI slots
