[Asterisk-Users] FXS or VOIP

[Wiley Siler]

If you are doing a whole bunch of fax machines then the external
solution Brian spoke of is probably best.
If we are talking 4 fax machines, you can get a TDM card and 4 FXS
modules and connect then right to the * box.
However, you have no growth space at that point without hardware
changes.  Is that an issue or will your needs remain static?

My PRI line works just fine for fax.  I am configured thusly...

PRI T1 (T100P) --->  * Server (NIC) ---> Network --->  SIP ATA ---> Fax
Machine

This works flawlessly and is a great solution when you only need a
couple of fax machines.

Asterisk is capable of routing fax from an analog device to a PRI T1 if
that is your question.
As long as you have a TDM card or ATAs for your analog devices, they
will be connected to the * box.
PRI has worked fine for me with FAX so there is no need to connect to
the PSTN just for fax.  YMMV but I bet it is fine.

How many fax lines do you need?

W



-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of John Crew
Sent: Wednesday, January 11, 2006 3:43 PM
To: asterisk-users at lists.digium.com
Subject: Re: RE: [Asterisk-Users] FXS or VOIP

What about fax machines working over a PRI T1 line?  Run FXS ports to
each fax machine and the TDM card will convert the digital T1 to analog
for faxing?

I have no POTS lines, just a T1 (PRI soon if I find out I can use
asterisk for regular POTS-type faxing).


---- Begin Original Message ----

From: "Wiley Siler" <wsiler at education2020.com>
Sent: Wed, 11 Jan 2006 15:20:03 -0700
To: "Asterisk Users Mailing List - Non-Commercial
Discussion"<asterisk-users at lists.digium.com>
Subject: RE: [Asterisk-Users] FXS or VOIP


I think what he means is that an * server can support hundreds of phones
because the server connects to the network via a NIC.
Port count becomes irrelevant when you thing about VoIP phones
connecting to a VoIP server.  They connect over the network not point to
point.
It is just a matter of bandwidth and network topography at that point.

If your desire it to connect a bunch of analog phones then you can use
ATAs.
I would recommend that you just replace them though.

You should only need to worry about your POTS lines at this point.
If you have 4 POTS lines, a single 4 port TDM card will suffice.

Cheers,
W


 

-----Original Message-----
 From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com]
On Behalf Of Jim Freeze
Sent: Wednesday, January 11, 2006 2:57 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] FXS or VOIP

On 1/11/06, William Boehlke
<william.boehlke at signate.com> wrote:
>
> A single computer will handle hundreds of
telephones. Just get a card 
> with more ports, or use an external gateway.

I am sorry, I don't understand. Are you talking about analog FXS phones?
All the PCI cards I have seen have a max of 4 FXS lines and the external
boxes seem very expensive.

--
Jim Freeze
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