[169533] in North American Network Operators' Group
Re: Any experience with Comcast digital voice for OOB (offlist is
daemon@ATHENA.MIT.EDU (Jay Ashworth)
Fri Feb 28 23:48:49 2014
Date: Fri, 28 Feb 2014 23:48:02 -0500 (EST)
From: Jay Ashworth <jra@baylink.com>
To: NANOG <nanog@nanog.org>
In-Reply-To: <03cf01cf34bb$1127e670$3377b350$@truenet.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
----- Original Message -----
> From: eric-list@truenet.com
> Subject: Any experience with Comcast digital voice for OOB (offlist is fine)
You're asking if a VoIP link could be used with traditional modems to do OOB management?
I'm pretty sure the answer is a flat no: any modems faster than 1200 bps
depend on phase change modulations that VoIP codecs can't begin to deal
with; FoIP is implemented by spoofing: the TA detects CNG tone, and spoofs
a datalink.
I don't know of any TAs that will do that with regular data modems.
Cheers,
-- jra
--
Jay R. Ashworth Baylink jra@baylink.com
Designer The Things I Think RFC 2100
Ashworth & Associates http://www.bcp38.info 2000 Land Rover DII
St Petersburg FL USA BCP38: Ask For It By Name! +1 727 647 1274
