IPCallBox Central

The IPCallBox Central Series is a modular solution for ISDN Primary Rate applications. The basic model can function as a protocol converter or as a least cost router for ISDN lines. The addition of DSP modules allows it to function as a VoIP gateway whilst still maintaining its protocol conversion and call routing capabilities.  

It's extensive feature set allows operation with multiple service providers simultaneously , as well as automatic failover between service providers in the event of a service issue.  Equipped with two Ethernet ports it also offers the choice of multiple IP paths for call delivery with the ability to dynamically switch the IP paths in real time in the case of an IP connectivity issue.