Re: [hylafax-users] how is vgetty implemented these days?

["Andrew Rinaldi" <andrew.rinaldi@xxxxxxxxxxxx>]

Hi Luke,

The zaptel driver is irrelevant in this.... my point is that I do not
believe the modems support full-duplex voice.  Can you tell me how you are
testing for full-duplex voice using the modems ?

I'm not trying to be difficult here... it's just that I have seen no
evidence to support your list of full-duplex modems (and I've seen lots of
test results that refute it !). 

Regards

ANDREW RINALDI
Mainpine Limited - Support
USA +1 503 822 9944 | Asia/Europe +44 1225 869439  
andrew.rinaldi@xxxxxxxxxxxx | www.mainpine.com


-----Original Message-----
From: Luke McKee [mailto:hojuruku@xxxxxxxxx] 
Sent: 24 April 2007 14:17
To: andrew.rinaldi@xxxxxxxxxxxx; Lee Howard; hylafax-users@xxxxxxxxxxx;
hylafax-users@xxxxxxxxxxxxxxxxxxxxx
Subject: Re: [hylafax-users] how is vgetty implemented these days?

Andrew,

It uses the zaptel kernel drivers. You can even get echo cancellation
going with it. It used to use an AT based interface in the older
versions. I just took delivery of one today. Like I said the future
suggestion is just so the voice modem can be a back up for the PABX
that does call pickup and fax / data tone detection.

Less and less people voice modems anymore for application development
when you can link it to a REAL PABX software suite. The user can press
a key to go to the operator and get hold music as well as interfacing
with applications. It can also do remote access (data). Fax onnections
are done in software using the sandsp at 14.4. as well. If you want
v34 you can have a modem card as well and hylafax can detect the fax
tone and trigger faxgetty to pick up. I think most big busiensses will
just have a dedicated fax number anyway.

Also thats just for PSTN lines. People writing voice applications will
probably get isdn trunks and use CAPI or have PABX software that uses
capi. Nobody wants to develop an application that is tied to one
vendors hardware. Vm voice shell from vgetty works around that in most
cases... guess how by trapping <DLE>'s. DLE code handling is the same
for all modems in vgetty I checked the source just then ":)

I used to use a quicknet telephony card (linejack) but quicknet is no
more... that's another way of doing voice -> h323 in linux.

Luke



On 24/04/07, Andrew Rinaldi <andrew.rinaldi@xxxxxxxxxxxx> wrote:
> Hi Luke,
>
> Are your SURE these are full-duplex ?  How did you test this feature ?
>
> Regards
>
> ANDREW RINALDI
> Mainpine Limited - Support
> USA +1 503 822 9944| Asia/Europe +44 1225 869439
> andrew.rinaldi@xxxxxxxxxxxx| www.mainpine.com
>
> -----Original Message-----
> From: Luke McKee [mailto:hojuruku@xxxxxxxxx]
> Sent: 24 April 2007 12:50
> To: andrew.rinaldi@xxxxxxxxxxxx
> Cc: Lee Howard; hylafax-users@xxxxxxxxxxx;
> hylafax-users@xxxxxxxxxxxxxxxxxxxxx
> Subject: Re: [hylafax-users] how is vgetty implemented these days?
>
> IHere are some examples of modems that do:
>
> Most Intel 536/7ep. Some Motorola and lucent, the newest connextant
> HCF with linuxant drivers, and Agere. BUT it must blend of firmware,
> chipset and DAA.
>
> I got a Motorola with a Silicon logic DAA. It's called a Digium Zaptel
> X100P and it's best used with asterisk VOIP PABX not hylafax ;)
>
> Cheers,
>
> Luke
>
>
> On 24/04/07, Andrew Rinaldi <andrew.rinaldi@xxxxxxxxxxxx> wrote:
> > Hi Lee,
> >
> > >I don't know of any consumer-grade full duplex voice modem.  I looked
> > >for them for a while.
> >
> > Last time we looked none existed... Agere had a soft modem that claimed
> full
> > duplex but really wasn't.
> >
> > Regards
> >
> > ANDREW RINALDI
> > Mainpine Limited - Support
> > USA +1 503 822 9944| Asia/Europe +44 1225 869439
> > andrew.rinaldi@xxxxxxxxxxxx| www.mainpine.com
> >
> >
> >
> >
> >
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