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| Vigor 2100VG Broadband Router for cable modems | SoHo | |||
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OverviewVigor 2100VG Router for Cable Modems
The Vigor2100VG provides a built-in VoIP (Voice over IP) telephone port. This phone port enables you to use your existing broadband connection to make VoIP calls to any other compatible device, anywhere in the world and anywhere on the Internet, free of charge. You can receive calls too of course, and all with a standard (analogue) telephone which you connect into the socket on the back of the router. By using the DrayTEL PSTN gateway (see later) you can also make calls to or from any regular phone line worldwide, including mobiles - the call is carried to/from your phone via your internet connection so your regular phone line remains free for other people/calls.
Having the Vigor 2100VG on your broadband connection effectively gives you an extra phone line - with no extra line rental, so when family or co-workers are tying up the main line you can still make calls using the phone on your Vigor 2100VG - ideal for teleworkers who need that extra flexibility. POTS & VoIP Access from one phoneIn addition to the broadband connection, the Vigor 2100VG connects to your regular analogue phone line so with just a single phone on your desk, you can choose to make calls using VoIP via the Internet or, by dialling #0 before the call, switch over to your POTS line and dial out via the PSTN (the conventional phone network - for example BT). Incoming calls can be received from either source too - either POTS or VoIP - the phone will ring on either. The Vigor 2100VG features automatic failover, so in the event of power loss, the Vigor automatically switches your phone over to the POTS line so that you can still make/receive calls. Additionally, if you have a VoIP phone number (SIP Address) in the speed dial memory, you can also specify a backup phone number for each entry, so in the event of Internet loss, the router will automatically dial an alternative number via your regular telephone line. In normal use, you can tell which line you are using by the LED colour - green for VoIP and amber for POTS.
Firewall FacilitiesSecurity is important to Internet users, so the Vigor 2100VG also provides firewall facilities. But default, your internal PCs are isolated from public access - this means that they can communicate outward, but external users cannot send to your PCs. Where communication is requested, a the router keeps reciprocal records (also known as 'keeping state') in order to know that data coming back is solicited and okay to pass back. In additional to these automatic systems, you can also set additional data filters to block specific packet types by protocol type or source or destination IP. Automatic anti-DoS (denial of service) code also help protect further against malicious attacks. It is still recommended that you always run anti-virus software on your PCs to allow for trojans and other virus threats coming from inside your network. Wireless LAN
Automatic QoS AssuranceTraffic levels from your local users to the Internet can vary; if someone else on your router is downloading, that will affect your speeds. Mostly that's quite tolerable - you just get your data a little slower but you wouldn't normally notice. With VoIP, things are different. A voice call has to be digitised, transmitted to the remote end and the turned back into an analogue waveform (sound!) in real-time. If part of a packet is delayed then the sound becomes jerky and intermittent which at best is annoying and in worst cases intolerable. The Vigor2100VG firstly uses efficient codecs designed to make the best use of available bandwidth, but secondly includes automatic QoS Assurance. QoS (Quality of Service) Assurance reserves part of your Internet bandwidth for voice calls whilst a voice call is active (the reserved bandwidth is available for regular use if there is no Voice call active). This means that, regardless of what else other people are doing on your Network, you will always have the necessary inbound and outbound bandwidth reserved exclusively for Voice. PSTN Integration via DrayTEL service
How Voice-over-IP worksUsing VoIP is simple. You connect any standard telephone to one of the two phone ports on the unit. In the simplest usage mode, you lift the handset and dial the IP address of the remote unit ( * is used in place of the normal dot). The router then contacts the remote router and the phone connected at the other site then rings. The remote user lifts his handset to answer the call and the two parties can then talk to each other. It's rare, however, that users do actually dial by IP address, particularly as most user's IP address changes regularly; services such as DrayTEL provide friendly 'phone numbers' to reach other users on, regardless of their current IP address. Phone Directory - Quick DiallingRather than having to type (dial) whole destination numbers each time, the Vigor 2100VG has a quick-dial directory for up to 99 entries so that you can use a short code (of your choice) in place of a long IP address, as well as enabling you to store SIP registrry names or dynamic DNS names. The router will automatically keep the SIP registrar updated with your current location (by IP address) so you do not need a fixed IP address. Specification
Screenshots
AccessoriesDirectional and Higher-Gain Aerials
Omnidirectional and Unidirectional aerials are available for increased coverage or other specialist requirements. For full specifications, click here. Wireless LAN Adaptors
The Vigor600 supports 802.11b, 802.11g and 802.11g "Super G 108Mb/s" as suppored by the Vigor 2910VG.
©2008 SEG. Reproduction prohibited without written permission. Specification subject to change at any time without notice. E&OE. Trademarks are acknowledged of their respective owners. No specific endorsement is implied by the mention of any particular service provider. | |||||||||
