The SPA9000 is a complete IP PBX in a box, and the base product supports up to four IP
phones and two analogue devices such as handsets, answering machines and faxes. An optional (£116) firmware upgrade increases the IP phone count to 16. The unit can be installed manually, but we recommend downloading the Setup Wizard utility. The SPA9000 supports a number of network scenarios, as its LAN port can isolate management access on a separate subnet, or be used to assign IP addresses to client systems and IP telephones connected to the same Ethernet switch. We opted to place one PC on the LAN to manage the device and connected the unit's WAN port into our test network
