Archive for the ‘V’ Category

VDSL

September 12, 2007

VDSL, or Very high bit-rate Digital Subscriber Line, is a type of superfast broadband with download speeds of up to 50Mb. The second generation VDSL service can reach even faster speeds of 100Mb for upload and download. VDSL is transmitted via twisted copper wires in a phone line and can handle broadband and high-bandwidth services such as VoIP, and IPTV.

However it does suffer from attenuation over longer distances (attenuation is the loss of the broadband signal as it makes its way from your exchange to your home).

By Sarah at UK Broadband Finder
Read my Broadband Glossary disclaimer

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Anti-Virus Software

June 19, 2007

Anti-virus software protects your computer from malicious code such as worms, trojans and viruses – whether in emails, downloads, and websites.

It is essential that a computer has up-to-date virus software running before a user goes onto the internet.

By Sarah at UK Broadband Finder
Read my Broadband Glossary disclaimer

On Demand TV and Video

June 11, 2007

Broadband providers are increasingly offering on demand TV and video services via a customer’s broadband connection. These may be free, or pay-for.  Services include:

  • BT Vision from BT – will provide digital TV over broadband to BT Total Broadband users.
  • 4OD, from Channel 4 – video on demand (of Channel 4 programmes) delivered via yourcomputer.
  • The BBC’s iPlayer – when it launches, it should include BBC Television programmes available for download, free for UK licence fee payers, for up to a week after transmission.

On Demand TV is bandwidth-heavy so users will need a robust and fast download connection in order to make the most of it.

Not all IPTV services are on demand – IP TV refers simply to the method of delivery and could include scheduled programmes, while on demand TV is available when the customer wants to view it.

By Sarah at UK Broadband Finder
Read my Broadband Glossary disclaimer

Voice over IP – VoIP

April 3, 2007

Voice over IP (IP meaning internet protocol) is a term for transmitting voice as data over a network. That means making phone calls over the internet (or, for businesses, across a corporate network). VoIP is also known as Voice over Broadband, or Internet Telephony. The main benefit to VoIP is free or cheap calls to destinations all over the world.

Some VoIP packages simply require a microphone and speaker that you plug into your pc, and use with downloaded software (this software application is sometimes called a soft phone). The person you call will need the same software for you to enjoy free calls. Other packages come with separate handsets and other equipment. Some packages allow you to call standard phones, simply making use of cheap call charges via the web. VoIP packages are often offered by existing broadband providers, or you can go for a standalone package.

One of the main drawbacks of VoIP is that many packages do not allow emergency calls, and/or are dependent on the consumer’s power supply – so you would also need another method to make such calls, at any time or in the event of a power cut.

VoIP use is increasing fast – according to Ofcom, at the end of 2006 over 10% of adults said they were making calls over the internet, duble the rate at the end of 2005. Ofcom has announced that in June 2007 it is introducing a new regulatory code of practice for VoIP providers in the UK, to ensure they provide consumers with enough information about package capabilities.

By Sarah at UK Broadband Finder
Read my Broadband Glossary disclaimer