Thread: Virgin media possibly getting serious on dodgy boxes?
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Old 29-11-2009, 13:30   #659
TheDon
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Re: Virgin media possibly getting serious on dodgy boxes?
Quote:
Originally Posted by Felim_Doyle View Post
See IPTV for a description where it states:-

So it uses the Internet Protocol (IP) but, in VM's case, not over the public network.
You've underlined a lot of nice words, but missed out the a couple of important ones, that being:

Quote:
the Internet and broadband Internet access networks
Not the actual internet, but the access networks to those.

Read further down the same page for a complete definition:

Quote:
Historically, many different definitions of IPTV have appeared, including elementary streams over IP networks, transport streams over IP networks and a number of proprietary systems. Although (in Mid 2007) it is premature to say that there is a full consensus of exactly what IPTV should mean, there is no doubt that the most widely used definition today for consumer IPTV is for single or multiple program transport streams (MPTS) which are sourced by the same network operator that owns or directly controls the "last mile" to the consumer's premises. This control over delivery enables a guaranteed quality of service (QOS), and also allows the service provider to offer an enhanced user experience such as better program guide, interactive services etc.

In commercial environments IPTV is widely deployed for distribution of live TV, video playout channels and Video on Demand (VOD) material across LAN or WAN IP network infrastructures, with a controlled QOS.

The official definition approved by the International Telecommunication Union focus group on IPTV (ITU-T FG IPTV) is as follows:
"IPTV is defined as multimedia services such as television/video/audio/text/graphics/data delivered over IP based networks managed to provide the required level of quality of service and experience, security, interactivity and reliability."
The key point in the ITU definition is that the network has to be managed, that means owned by the IPTV provider. You'll struggle to find anyone in the industry refer to IPTV to mean anything but using a privately owned IP network to deliver TV services, anything that touches the internet is referred to as Internet TV.

Quote:
I would be interested to know though, if it is going to be on a seperate stream from the broadband traffic coming down the same co-ax cable.
Yes.
Even in the VDSL systems the bandwidth is entirely segregated from the actual internet traffic.
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