[138295] in North American Network Operators' Group
Re: What vexes VoIP users?
daemon@ATHENA.MIT.EDU (Scott Helms)
Wed Mar 2 11:50:09 2011
Date: Wed, 02 Mar 2011 11:48:55 -0500
From: Scott Helms <khelms@ispalliance.net>
To: frnkblk@iname.com
In-Reply-To: <011901cbd8f6$9bf72190$d3e564b0$@iname.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Frank,
It gets better (which is sad) in the case of Charter if a customer
ordered voice and data they were given a normal Moto SB for Internet
data and a separate Arris eMTA (with no CPEs allowed other than the TA
and the Ethernet port disabled) for voice. The channels they were using
for voice even terminated on a different CMTS altogether.
On 3/2/2011 11:26 AM, Frank Bulk wrote:
> Thanks for clarifying. I can't imagine an MSO using separate DS and US QAMs for their eMTAs. Regardless, the customer's Internet would flow over those same QAMs (unless it was a D3 channel-bonding eMTA, and even then I'm not sure if the CMTS could be provisioned to use one QAM for voice and the remaining QAMs for data).
>
> Frank
>
> -----Original Message-----
> From: Scott Helms [mailto:khelms@ispalliance.net]
> Sent: Wednesday, March 02, 2011 9:27 AM
> To: frnkblk@iname.com
> Cc: nanog@nanog.org
> Subject: Re: What vexes VoIP users?
>
> Frank,
>
> No, not all. There seems to be some confusion here between the
> concept of PacketCable flows which everyone _should_ (but aren't) be
> using to prioritize their voice traffic and separate downstream and
> upstream channels which a few operators use for voice traffic only.
>
> On 3/2/2011 12:55 AM, Frank Bulk wrote:
>> Scott:
>>
>> Are you saying that the large MSOs don't use CM configuration files that create separate downstream and upstream service flows for Internet, voice signaling, and voice bearer traffic?
>>
>> Frank
--
Scott Helms
Vice President of Technology
ISP Alliance, Inc. DBA ZCorum
(678) 507-5000
--------------------------------
http://twitter.com/kscotthelms
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