Re: [hylafax-users] [hylafax-devel] Fax over VoDSL PSTN emulators

["Luke McKee" <hojuruku@xxxxxxxxx>]

Ok I'll try and do some testing with V.34 faxing from the site today.
If it fails I'll let you know maybe you could be more concerned. These
IAD devices in the most economical configuration for the Telcos are
certainly capable of pulling V.34 support at a very large number of
sites Australia wide, no no doubt elsewhere in the world where they
are deployed.

The datasheet for the IAD -> the thing that provides the phone socket
here doesn't say V.34 for fax - only for modem (AAL2 proxy I think).

On 06/05/07, Andrew Rinaldi <andrew.rinaldi@xxxxxxxxxxxx> wrote:
> Luke,
>
> In this context I'm using 'VoIP' as a generic term to describe any
> digitised, packetized, local loop system.  In our experience the
> fundamentals remain the same.... it's unsuitable for transporting audio
> which meets the basic requirements of fax.
>
> I had a quick chat with our CTO... unfortunately, this is not something we
> wish to invest any effort in at this time.  Maybe someone else on the list
> will participate.
>
> 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: 05 May 2007 15:59
> To: andrew.rinaldi@xxxxxxxxxxxx
> Cc: Lee Howard; hylafax-users@xxxxxxxxxxx
> Subject: Re: [hylafax-users] [hylafax-devel] Fax over VoDSL PSTN emulators
>
> On 06/05/07, Andrew Rinaldi <andrew.rinaldi@xxxxxxxxxxxx> wrote:
> > Luke,
> >
> > We have yet to find ANY 'VoIP' service that is sufficiently robust to be
> > used for a reliable fax service in the real world.
>
>
> Maybe Andrew didn't get it....
>
> It's Voice Codecs over ATM -> i.e. AAL1/AAL2 over DSL/ATM PVCs
> terminated in ATM. There is No IP carrying the voice here. I clearly
> didn't say VOIP.
>
> The box the Telco provides can also do VoIP as well which is annoying
> because customers can never know what gets provisioned. So it could be
> VoIP if the Telco is lying and ripping of all their customers [not
> likely],  but for the purpose of informing the users can you show that
> you clearly acknowledge what kind of technology we are talking about
> here.
>
> Can you please acknowledge that it's not VOIP and post again your
> opinions about running fax services using AAL2, specifically its own
> fax relay protocol (something like T.38). Can you refer it to someone
> else at mainpine, like in the US office (not the UK) if you don't feel
> qualified to comment on VoATM/VoDSL.
>
> Have you tested what modes that IADs operate in and how they effect
> V.34 fax support - which I believe is your products main selling
> point?
>
> Please confirm what I'm pretty sure that fax works fine over CBR 64k
> channels,
> The IAD's data sheet says "fax support - V27ter V.29 - NOT V.34, G3 &
> G4 data". So it is going to cap V.34 mode. This is a very common
> device in Australia that many businesses are taking up according to
> it's proponents.
>
> I can see why the Telco is a fan of it due to political issues with
> telecoms trying to pay less for access to the copper wires (ULL) from
> the former monopoly holder - or just rent less PSTN lines. I'm trying
> to tee up to V.34 fax machines modems for a test tomorrow....
>
> Cheers,
>
> Luke

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