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Draytek Vigor IPPBX 2820 Integrated IP-PBX & ADSL Router Firewall With Wireless-N

The Vigor IPPBX 2820 is an IP-PBX (iPBX) integrated with DrayTek's fully-featured Vigor 2820 ADSL Router. It offers a complete replacement to the traditional office phone system and analogue or ISDN lines. An IP-PBX uses your existing network and the Internet to provide company-wide telephony, using VoIP technology instead of regular phone lines or a traditional PBX. This can save hugely on line rental, provides vast flexibility, reduces call costs, maintenance and increases efficiency. Phones can be placed anywhere in your office, or around the world to provide one seamless phone network for your business.

In a pure IP environment, the VigorIPPBX 2820 is installed onto your LAN together with IP telephones, such as the VigorPhone 350. All devices are connected over your LAN using your existing Ethernet network connections. The Vigor 2820 PBX can support up to 50 extensions - local or remote. As it uses your regular network, you don't need special extension wiring - just your existing Ethernet switch with adequate ports (assuming you are using IP phones). A traditional PBX with 50 extensions would take up a whole cabinet and need a lot of wiring!

Once installed, all extensions call call each other of course and calls can be transferred, diverted and all other normal features of a PBX. Extensions do not have to be local (in the same office as the iPBX) - they can be anywhere in the world, and still be seamless so that calls can be made between to transferred to extensions whether they are local or remote. Similarly, incoming calls can be routed to any extensions, whether they are local or distributed in many remote locations - anywhere with an Internet connection.

If you require analogue extensions (regular non-IP telephones or equipment) then the VigorIPPBX 2820 provides one port but you can add 24 additional analogue extensions with the DrayTek VigorTalk ATA-24SH. Analogue extensions are useful for legacy equipment, lower cost extensions or where you don't want the risk of loss or damage to an IP phone

For the connection to the regular PSTN - the public telephone network, you need an ITSP (Internet Telephone Service Provider) who can provide you with a 'SIP Trunk', such as Orbtalk . Then, when your users need to make an external call, the iPBX can route automatically via the ITSP gateway on the Internet. The ITSP will also provide you with incoming phone numbers to receive calls. Those calls are routed into your Vigor IPPBX 2820 which then passes to the appropriate telephones (extensions).

The Vigor IPPBX 2820 is also an ADSL Firewall/Router but even if you are not using ADSL or you already have other firewall arrangements, you can still use the Vigor IPPBX 2820 for your VoIP telephony; the unit's second WAN port is standard Ethernet which can connect into your WAN connection, instead of using the ADSL port.

Voicemail can be enabled on any extensions to take messages when the phone is not answered or busy and the message can be emailed to the extension owner, or they can pick it up from their phone when they return. Other features include an IVR (Automated Voice Response) attendant so that your incoming calls can be answered by a recorded voice and the caller can choose their department or person by entering the menu items you have set up (e.g. press '2' for sales). You can sl ouse it to provide common information such as opening hours or location details

802.11n Wireless LAN

The DrayTek Vigor IPPBX2820n supports the latest 802.11n standard (Draft 2.0). This provides increased coverage range, resilience and speed compared to existing standards (802.11g and 802.11b). Using new methods, including packet aggregation and channel bonding, the Vigor provides a total wireless capacity) of up to 300Mb/s. Real world throughput depends on your own environment (factors such as obstructions, number of hosts and distances all make a significant difference), but actual transfer speeds up to 100Mb/s are achievable (this is based on real world tests). Using an aerial arrangement known as 'MIMO' (Multiple In Multiple Out) three separate aerials (2T3R) are used to provide offset paths between hosts; this increases resilience considerably.

Wireless Security is comprehensive too; the Vigor provides several independent levels of security including encryption (up to WPA2), authentication (802.11x) and methods such as MAC address locking and DHCP fixing to restrict access to authorised users only. The VLAN facility allows you to isolate wireless clients from each other or from the 'wired' LAN and you can also see details of wireless PCs connected at any time from the router's web interface.

WDS provides two modes of operation to expand the Wireless range of your LAN. In WDS 'Repeater' Mode, a slave unit within range of the main base unit repeats the main wireless signal into its own coverage area - this can effectively double the total range of the network (depending on the environment). In WDS 'Bridge' mode, two physically separated LAN can be joined wirelessly, in order than they can communicate with each other. This is ideal where two offices need to be linked but a cable cannot be run (e.g. across a road). For more information about WDS see here.