Re: [hylafax-users] Query about multi-modem fax server

[Pedro Rocadas <procadas@yahoo.com>]

--- john.d.tullis@ironcitidel.com wrote:
> I intend to set up a multiple modem fax server.
> (a) Server to run RedHat Linux 7.2

You have 7.3 now :-)

> (b) Current RedHat HylaFAX RPM.

By current you mean 4.1.2 right?
 
> From reviewing the archives, it appears that it is
> useful to 
> use external modems (because they can be reset w/out
> needing 
> to reboot the Linux host) attached to a multiport
> serial 
> card such as those made by www.cyclades.com.

Well, I have a Comtrol RocketPort ISA card(8 modems,
well7 actually, seems that somehow I "burned" one of
the ports :-))) ) and I never needed to reset/reboot.
And you can find these cards on EBay at a good price.
  
> I intend to have a trunk line, set up to "call hunt"
> by the 
> phone company so that inbound calls can use the same
> fax 
> number. That is, if I have 8 inbound lines, then
> when 
> simultaneous inbound calls occur they should "roll
> over" to 
> the next available line.

Like we have here for a single number. We configured
the PBX to pool 4 lines.
 
> Questions:
> (1) If I have a trunk line coming in, how does that
> split 
> into the multiple lines I would need if I had
> separate 
> external modems? Obviously, if the trunk line ended
> in a 
> standard phone jack, that is only a single line 
> (physically). So how does this work? Anyone who has
> dealt 
> with the physical hooking up of a phone system WITH
> A SINGLE 
> NUMBER that gets rolled over to separate modems, I
> would 
> like to hear what is involved here.

Read above.

> (2) Now, assuming there is no problem there and that
> the 
> trunk splits into multiple lines, one to each modem,
> and 
> each modem is then hooked up via a serial cable to a
> 
> multiport serial card, what are the mechanics of
> telling 
> HylaFAX that there are several modems on the same
> serial 
> port?

If you are attaching modems to a *multiport* serial
card, the system "see" the ports that the card have,
along you configure the system to do it. For your last
words, you must think ISDN or similar. With a single
modem/card you can handle multiple lines.

> I don't actually know what happens when you
> add one of 
> these multiport cards to system. Does Linux then see
> several 
> serial devices instead of a single serial device?

I advice you to read about unix/linux systems, because
you put some questions concerning the system itself
and not hylafax. But you can check for now the /dev/
dir.

> (3) Finally, I am posting this message in this
> manner so 
> that I can avoid posting a bunch of "help help help"
> 
> messages later. I would please like to get
> suggestions on 
> modems that work with multiport cards.

Almost any modem that can do Class 1 and 2. But
MultiTech are good modems and seems that they tech
support "have heard" about hylafax.

> I have read
> that 
> Multitech 2834ZDX modems work with the Cyclades 8Y0
> card. 
> But the posting was not recent. Does anyone have any
> recent 
> experience where they can say - yes, this model
> external 
> modem will work with this model multiport serial
> card 
> because you have done it and have it running -

Read above. But if older hardware worked for someone
and you can buy the pieces for a good price, the
information is still valid.

> preferably 
> with RedHat 7.x.
> So please post suggestions.
> Regards,
> John Tullis
> John Tullis
> 847-867-1032

I hope that my words can give you some cluee. Cheers. 



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