Sirrix AG security technologies presents 4-port BRI PCI-card with hardware switching and optional encryption. This card provides four S0-ports which can be connected to the public network (TE mode) or to any ISDN user device (NT mode). With the open-source software ASTERISK it can be used to build up highly scalable PBX systems. Moreover, Sirrix.PCI40 is able to encrypt ISDN links in real-time and thus, is a perfect choice for building crypto-gateways.
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