[Asterisk-Dev] Re: Answering Machine detection

[Carlos Antunes]

Excuse the ignorance, but what is VON?

On 9/13/05, Gilmore, Gerry <gerry.gilmore at intel.com> wrote:
> 
> Keep an eye on VON for some announcements relative to this.......
> 
> Gerry
> 
> There are 10 kinds of people in the world, those who understand binary
> and those who don't.
> 
> Gerry Gilmore
> Field Applications Engineer
> Intel Corporation
> (http://www.intel.com)
> 
> 
> -----Original Message-----
> From: asterisk-dev-bounces at lists.digium.com
> [mailto:asterisk-dev-bounces at lists.digium.com] On Behalf Of Nitin Joshi
> Sent: Tuesday, September 13, 2005 1:30 AM
> To: asterisk-dev at lists.digium.com
> Subject: [Asterisk-Dev] Re: Answering Machine detection
> 
> Hi,
> Thanks to Matt and Steve for replying to my post :-) . Steve, I would
> really
> like to know more about your code like how it exactly works and how
> resource
> (cpu and memory) intensive it is.
> 
> Matt, following are the details you asked for:
> I want my system to detect atleast 80% of the answering machines and
> that
> too within 1-3 seconds, just like dialogic boards.
> Otherwise there won't be much reason to replace the existing predictive
> dialer system with Asterisk.
> We're going to have 24 to 48 lines initially and it'll definitely be T1.
> We've not yet finalised which cards (Digium, Sangoma or if possible
> Dialogic) to use.
> Also, we'll be writing our own Predictive dialer application which will
> talk
> to Asterisk using its Manger API interface.
> 
> I would be really grateful if you could guide me on the above and also
> throw
> some light on the following:
> - Does Asterisk support the Dialogic D/480JCT-2T1 board (That's what our
> current system is using) ?
> - Which is the best T1 card for use with Asterisk?
> 
> 
> Message: 1
> > Date: Fri, 9 Sep 2005 19:20:22 +0200 (SAST)
> > From: steve at daviesfam.org
> > Subject: Re: [Asterisk-Dev] Answering Machine detection
> > To: astmattf at gmail.com, Asterisk Developers Mailing List
> > <asterisk-dev at lists.digium.com>
> > Message-ID: <Pine.LNX.4.58.0509091918450.8011 at bob.daviesfam.org>
> > Content-Type: TEXT/PLAIN; charset=US-ASCII
> >
> >
> >
> > On Fri, 9 Sep 2005, Matt Florell wrote:
> >
> > > Answering Machine detection is very CPU intensive in Asterisk and
> will
> very
> > > much limit your capacity per server if you implement it. This is
> because
> > > unlike expensive Dialogic boards, Digium cards do not have an array
> of
> > > on-board DSPs to handle the signal processing needed to accomplish
> good
> > > Answering Machine detection.
> > >
> > > What percentage of Answering Machine detection are you trying to
> achieve?
> > >
> > > How much delay time is acceptable to you? Dialogic systems range
> from
> 1-3
> > > seconds of delay while they process the signal to determine whether
> it
> > > thinks there is a person on the other end.
> > >
> > > How many Lines do you think you are going to be able to have dialing
> > > outbound with Answering Machine detection active?
> > >
> > > What kind of lines(trunks) will you be using this with? (T1/E1s,
> SIP,
> > > IAX...)
> > >
> > > What predictive dialing software are you planning on using on
> Asterisk?
> >
> >
> > Gee - my code for answering machine detection works within a second or
> two
> > and simply works by listening for the "blah blah blah" of an answering
> > machine as opposed to the shortish phrase and wait of a real person.
> It
> > manages about 90-95% correct detection.
> >
> > Does that rate as OK? If so, I'll put it up on bugs.digium.com<http://bugs.digium.com>
> >
> > Steve
> >
> 
> 
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