Advanced applications (up to 8 BRI).PrimuX Multi S0 PCI Express and PrimuX Multi S0 PCI controllers are proven and reliable server controllers. They provide an excellent port density with low PC load at a very low per-channel price. Support of all supplementary CAPI services makes these controllers the right choice for call distribution/switching systems and for fax servers.The NT versions are designed for use in PC based PBXs, VoIP Gateways and line emulators.