The Dray Tek Vigor BX 2000 is an IP PBX integrated with Dray Tek's fully-featured Vigor 2860 ADSL/VDSL Router. By adding IP telephones, you have a complete office phone system, allowing for local & remote extensions. Calls can be routed to a receptionist, groups or even an automated attendant (IVR). This Dray Tek Vigor BX 2000 offers a complete replacement to the traditional office phone system & analogue lines. An IP-PBX uses your existing network & the Internet to provide company-wide telephony, using Vo IP technology instead of regular phone lines or a traditional PBX. This can save hugely on line rental, provides vast flexibility, reduces call costs, maintenance & increases efficiency.