[TriLUG] OT - TWC bandwidth caps on the way?

[Scott Lambdin]

Hmmm, this seems to have come through encrypted.  I need to check my gpg
settings....

On 6/6/08, jonc at nc.rr.com <jonc at nc.rr.com> wrote:
>
> VoIP uses a control stream (SIP, SCCP, MGCP, AIX) and a voice stream (RTP).
> The voice stream is compressed and transmitted using the Codec.  The control
> stream is digital and is used for DTMF as well as CallerID and other
> functions.
>
> To make our lives easier at the connection with the PSTN we use PRI
> connections which send Voice down one channel and Data down a separate
> channel. So DTMF always stays in the Data stream and Voice always stays in
> it's own separate stream - even at our interconnects with the Public
> Switched Telephone Network. :-)
>
> Jon
>
> ---- Tanner Lovelace <clubjuggler at gmail.com> wrote:
> > On Wed, Jun 4, 2008 at 10:20 AM,  <jonc at nc.rr.com> wrote:
> >
> > > Vonage uses G711 codec which maxes out at 87 Kbps
> > > FeatureTel defaults to G729 codec (voice only - no noise) which maxes
> out at 31 Kbps
> >
> > How does FeatureTel support the user sending DTMF tones while using G729?
> >
> > Cheers,
> > Tanner
> > --
> > Tanner Lovelace
> > http://wtl.wayfarer.org/
> > (fieldless) In fess two roundels in pale, a billet fesswise and an
> > increscent, all sable.
> > --
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