The AXD 305, which hosts up to 160 E1/DS1 ports in a standard 19-inch rack, is a compact version of the AXD 301 Multi-Service Switch.
There is compatibility between the two AXD products; software, circuit boards, power supply equipment, and CPU modules are interchangeable. Both the AXD 301 and 305 can be used as an MGW (Media Gateway) in the EIN.