North American Network Operators Group
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Re: Clear Channel on a T1

  • From: Terrence Chatfield
  • Date: Thu Mar 22 14:31:00 2001 
    If this T-1 is for internet service, then what AT&T is charging you extra dollars
for is the ability to send more data through their network (port charge). 1.536 Mbps max
data rate for clear channel, vs 1.344 Mbps max data rate for non-clear channel.  There
should be no additional charge for the local loop, since all modern telecom equipment
inherently support both flavors of T-1s.

[email protected] wrote:

> Here's a few more details -
> We provision T1.
>
> Salesdroid asks "You wanna give us $$$ for clear channel?"
>
> Us: "..... ?"
>
> Salesdroid: "It's so you can get 64kbit rather than the normal 56k"
>
> Us: "We thought all DS-0s were 64kbit?"
>
> Me: "I know! I'll ask NANOG!"
>
> Here's a document that further obfuscates the matter for me -
> http://www.comtest.com/tutorials/t1.html
>
> Anybody care to comment on its relevance in this situation? If I read it
> correctly, Clear Channel = Less Capacity. Doesn't sound right.
>
> I believe the carrier in question is AT&T.
>
> thanks for any input you guys might have
>
> -carl
>
>
>                     owner-nanog-outgoing
>                     @merit.edu AT nxmime        To:     CARL P HIRSCH/Sargentlundy,
>                                                 [email protected] AT [email protected]
>                     03/22/01 12:12 PM           cc:
>                                                 Subject:     Clear Channel on a T1
>
>
> Can anybody give me some info on what exactly "Clear Channel" means in
> relation to a DS1 circut?
>
> My gut tells me that it's only relevant with voice Ts...
>
> thanks,
> -carl hirsch
> network analyst
> sargent & lundy llc

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