Re: [hylafax-users] Fax takes long time to send

["Nicolas Ross" <rossnick-lists@xxxxxxxxxxx>]

Actually,

It'll be hard to upgrade to 4.4.x, since this is a pretty old machine (RH 
7). I'll try to upgrade to 4.3.4 to see if it helps.

With my curent 4.2.1 version, my modem config files has : "ModemType: 
Class1" in it. I've change my SessionTracing to 0xFFF, and try with 4.3, and 
I'll post results later.

Nicolas

----- Original Message ----- 
From: "Darren Nickerson" <darren.nickerson@xxxxxxxx>
To: "Nicolas Ross" <rossnick-lists@xxxxxxxxxxx>; <hylafax-users@xxxxxxxxxxx>
Sent: Wednesday, September 05, 2007 1:25 PM
Subject: Re: [hylafax-users] Fax takes long time to send


> "Nicolas Ross" <rossnick-lists@xxxxxxxxxxx> wrote:
>
> > We've got a fax server running RH 7.3, Hylafax 4.2.1, that's been sending 
> > and receiving faxes for the last 3 years or so. Receiving works great, it 
> > takes less than 30 seconds receiving a 1-page fax. Sending is an issue.
> >
> > Since a couple of weeks, we've seen our send-time pass from less than a 
> > minute to 3 minutes and more for single-page fax. This impacts our 
> > long-distance charges, and of course our costs. So for exemple, sending a 
> > 23 pages pages takes 60 to 90 minutes.
> >
> > Our fax server is in a rack, with a 8 port multi-serial card from 
> > Multitech, a single external modem, also from Multitech. This rack is 
> > inside a telco CO, so the distance with the telco CO is minimal. The 
> > phone pair is probably less than a 500 feet to the telco switch. We've 
> > talk to the tech support of the telco, and they coudn't not find anything 
> > wrong. We had a multitech "real" modem that we've installed into the 
> > server, we switch the phone cable and tried again, and the faxes still 
> > takes 3 times the time that usually takes.
> >
> > We send all our fax in fine resolution (196 lines/inch), and always had 
> > since 3 years.
> >
> > From this, where should I look ?
>
> Telephone line quality is probably this issue here, but your current setup 
> probably won't give you much insight into that. I'm willing to bet you're 
> configured in Class 2.
>
> My recommendation would be to upgrade to HylaFAX-4.4.1 and configure your 
> board in class 1.0. Set SessionTracing to 0xFFF or higher in the modem 
> config files, and have a look at how many PPR (partial page requests) you 
> see on calls where ECM error correction is successfully negotiated. If you 
> see a lot of PPRs, you have challenging line conditions. Then you can beat 
> the telco with a larger stick.
>
> -Darren


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