Well I'm still none the wiser. The checker says my line is good for up to 8 meg. I think that might have been predicted using the data from when I was using my old router though. Since changing to a router with a broadcom chipset my sync has gone from around 6300 to 7616 (running in forced interleaved mode)
Current stats are
Connection Speed 7616 kbps / 448 kbps
Line Attenuation 25.0 db / 14.0 db
Noise Margin 6.5 db / 21.0 db
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Good rule of thumb to apply is that if you currently get over 4.5, you will see benefits from ADSL 2+, and if you are below that then you will best staying on the A|DSL 8mb service.
sorry to bring up dead thread, I did indeed. contact you about this and i was told it could happen in april for my line. Since then my line is showing up as enabled for 21cn. so is there anything special i need to do ? to get migrated over ?
Hey. I finally got round to phoning you guys today
Great support as ever and a relaxing phone call.
turns out while our exchange is in fact done in terms of hardware, bt are slacking at doing the mass upgrade