Asterisk cards AX4S

Quad ISDN BRI card for Asterisk PBX

AX4S Asterisk card is the telephony PCI card that support four ISDN BRI ports.
Using AX4S digital PRI card, open source Asterisk PBX and stand alone PC, users can create their IP PBX telephony solution include all the sophisticated features of traditional PBX, and extend features such as voicemail in IP PBX.

Features
4 Basic Rate Interface ports (I.421) for TE and NT mode
Hardware DTMF detection
Conference Bridge
Point-to-Point (TE/NT) and Point-to-Multipoint (TE/NT) Euro ISDN protocol stack
Suitable for 3.3 volts and 5.0 volts 32 bit PCI 2.2 slots

Applications
ISDN BRI IP PBX
ISDN least cost router

Hardware requirement
1.6-Ghz Pentium IV
512 MB RAM
3.3V or 5V PCI 2.2 slot

PCI card dimension:
95mm (height) × 120mm (Length)