an ISP basically has to rent pipes from bt to take data from their network on the BT's backbone.
nowadays each pipe is 622mb, although they used to be 155mb, and some isp's still have a mix of the 2.
a 622mb pipe with a 1:1 contention ratio would only cater for about 77 customers (if each customer was running at the full 8mb), so for an ISP to cover the cost of the pipe alone they would need to charge each customer £1700 per month approximately (just to cover installation costs) as 1 622mb central costs around £160,000 for installation, and over a million a year for rental.
now work that out as to how many customers an ISP needs to lob on each pipe to keep the cost below £30 a month for the majority of customers.
add on top the fact that for each central pipe an isp has, it needs an ERX (edge routing switch) which costs around £100k each.
and that boys and girls is why adsl is this country will only get worse rather than better. because people want it cheaper, but it isn't physically possible without having a degraded service.
an ISP basically has to rent pipes from bt to take data from their network on the BT's backbone.
nowadays each pipe is 622mb, although they used to be 155mb, and some isp's still have a mix of the 2.
a 622mb pipe with a 1:1 contention ratio would only cater for about 77 customers (if each customer was running at the full 8mb), so for an ISP to cover the cost of the pipe alone they would need to charge each customer £1700 per month approximately (just to cover installation costs) as 1 622mb central costs around £160,000 for installation, and over a million a year for rental.
now work that out as to how many customers an ISP needs to lob on each pipe to keep the cost below £30 a month for the majority of customers.
add on top the fact that for each central pipe an isp has, it needs an ERX (edge routing switch) which costs around £100k each.
and that boys and girls is why adsl is this country will only get worse rather than better. because people want it cheaper, but it isn't physically possible without having a degraded service.
Unless BT lower the rental cost of the pipes