Okay. Show me one person's modem stats on this forum that show an attainable rate of 160Mb.

Just one.

Then remember that 10% of people must be able to hit that level for ISPs to be able to sell it.

With that in mind how do you suggest BT use either 30a profile or pair bonding without talking to Ofcom? Pair bonding requires regulatory changes, 30a an INFP change.

In reply to a post by adslmax:

Rubbish. Bt can do FTTC up to 160/20 if they want. Yes, if BT want it, they go ahead with it. BT are lip sealed secret.

As MrSaffron and Ignitionnet have said, BT Openreach cannot trivially move to anything like 160/20 on FTTC. It would require a move to Profile 30a (which needs a change in the Analogue Network Frequency Plan), which, to my understanding, needs new line cards in the cabinets and new modems. Even the specification for ISP supplied FTTC equipment only requires Profile 17a support.

A commercial 160/20 service is likely to be difficult without vectoring, as the speed drops from crosstalk could be substantial.

Will my broadband speed upgrade cost any extra money?

Absolutely not! Your speed upgrade will not change the amount you pay each month for your broadband service.

Yeah right. That's why prices have gone up more than 20% since the last "free" upgrade! And no doubt we can expect another inflation busting hike in the new year.

There gonna to be 6.7% rise in Feb 2014. Nothing is free! Virgin is hidden "what's the catch" and lying again.

The old Digital Region network had low take-up so low cross talk and gave this sort of information

http://www.thinkbroadband.com/news/5160-origin-shows...

Profile 30 is much more about boosting upstream speeds than pushing download to the extreme.

In reply to a post by MrSaffron:

The old Digital Region network had low take-up so low cross talk and gave this sort of information

Yes indeed, I did remember that article and thank you for it.

Sticking a VDSL 2 modem next to a 17a line card and connecting them with an inch of copper won't get 160Mb, I think 17a just doesn't have enough Hz to pack that much throughput into with the current maximum modulation density available.

Average of 6.7%, some things may be less and some more.

And twelve months ago

http://www.thinkbroadband.com/news/5602-speed-boosts...

Watch the graph scales, and see that Profile 30a only boosts download for those under 200m from the cab. I'd say those graphs were fairly ideal with minimal cross talk, i.e. vectoring unlikely to add much more if anything.