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377 posts

Ultimate Geek

#39109 9-Aug-2009 13:39
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A few months back I changed from Orcon which was adsl2+ and when I changed to Telstras PDQ FS/FS I noticed that the modem is no longer connecting at adsl2+ speeds.

Just wondering if the PDQ plans support adsl2 before I waste my afternoon on the phone trying to get this fixed.

oh and im in chch so i wasnt on Orcons LLU.

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8035 posts

Uber Geek


  #244450 9-Aug-2009 15:45
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I used to be on Telstra PDQ and my modem status page indicated it was connected in ADSL2+ mode.

It probably depends on the equipment in your exchange, it's possible (but very unlikely) if you were on Orcon+ that Orcon has ADSL2+ gear in the exchange and Telecom hasn't upgraded that particular exchange to ADSL2+ gear.  However I thought Telecom had already upgraded every exchange to ADSL2+, I might be wrong though.

Were you on Orcon+ plan?
What make and model of modem do you have?
What is the modem's adsl status page(s) showing?

377 posts

Ultimate Geek

  #244452 9-Aug-2009 16:02
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The modem connects in ADSL2+ mode but displays the speed of standard adsl and the exchange was upgraded a few years back, I remember it being on a spreedsheet from the telecom site.

DSL Status: Connected
DSL Modulation Mode: ADSL2
DSL Path Mode: Interleaved
Downstream Rate: 7547 kbps
Upstream Rate: 782 kbps
Downstream Margin: 14 db
Upstream Margin: 12 db
Downstream Line Attenuation: 13 db
Upstream Line Attenuation: 3 db
Downstream Transmit Power: 12 db
Upstream Transmit Power: 19 db


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Uber Geek


  #244553 9-Aug-2009 21:41
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What downstream rate were you getting on Orcon?

There is not really a "standard adsl" speed, the rates you'll see on your modem screen get largely determined by some of those other stats you've listed (eg: downstream margin and attenuation).

It's typically acknowledged that Orcon have chosen more aggressive settings than Telecom for their equipment, but the difference shouldn't be too large.

Also higher sync speed does not always correspond to better real world throughput in KB/s, especially to international sites.  Real performance is often limted by the ISP's traffic management and available bandwidth.

377 posts

Ultimate Geek

  #244558 9-Aug-2009 21:52
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On orcon the downstream speed was double that

8035 posts

Uber Geek


  #244560 9-Aug-2009 21:59
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It does sound odd, your Downstream Line Attenuation of 13 db is pretty low and you should theoretically have a higher rate.

I would give the help desk a call and see what they say, hopefully you get someone on to it not a script monkey.

68 posts

Master Geek


  #250359 25-Aug-2009 14:16
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TelstraClear PDQ supports ADSL2, it just doesn't refer to it on their website to ironically avoid confusion I assume (Plus other little haphazard differences between "On-Net and "Off-Net" services)

Call tech faults and see whats up!

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