Daylo: Reading the last few posts, I must be lucky.  As said previously, on ADSL2+ I had 12.3dB down for attenuation (based on modem stats, not a Telecom tool. So is this different?), so was outside the limit as has been described (which was news to me until I read it here). They came & installed. And it's on day 11 as of today.



Stats (as of right now). Also now looks like DLM-1 to me 


  Modem state: up
Up time (Days hh:mm:ss): 0 days, 16:10:38
xDSL Standard: ITU-T G.993.2
Channel Mode: Interleaved

Number of reset: 3

Chipset Vendor info (G.994.1): Local Remote
Country code: B500 B500
ID: BDCM BDCM
Specific: 0000 A3D3

System Vendor info (showtime): Local Remote
Country code: 0F00 0000
ID: TMMB ----
Specific: 3C61 0000

Bearers generic info DS US
Payload rate [Kbps]: 37618 10357
Attenuation [dB]: 14.5 30.5
Margins [dB]: 12.3 21.8
Output power [dBm]: 18.6 5.5

Number of bearers: 1
Bearer 0 DS US
INP [DMT symbols]: 0.00 0.00
Delay [ms]: 0.00 0.00
Depth []: 1 0.00
R: 0 0

kawaii:

I'd be tempted to check out to see how much of the issues relate to the wiring in the house vs. the street.

If you're getting the attenuation from your modem it is reading VDSL attenuation. The attenuation we qualify you for VDSL is ADSL attenuation (they have different frequencies). This is likely why you are seeing such differences

Daylo: I know all this. My post wasn't related to differences in frequency hence my different dB stats between xDSL technologies. It was related to Telecom saying one thing, and delivery being something else i.e. stating 10.8bD minimums.  Which I didn't have (on ADSL), yet I have a pretty decent connection with VDSL now. Anyway, thanks for the response.

Daylo: That Output Power is off the rails ... glitch in the reporting?