asterisk users - Jan 2005 - 8 pstn lines+ on Asterisk supported hardware.

Hi all,

I have this project that requires me to use 8 PSTN lines and possible more. I
was thinking 2 TDM cards with FXO modules.
The I got to read the "Qs about FXO/FXS cards" thread and that scared
me.
Can anybody recommend anything that is known to work ok with no mysterious
problems?
I was thinking OpenSwitch12 cards. What do you guys think?
Any help is appreciated.

Regards,
Hadi

-- 
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.290 / Virus Database: 265.6.7 - Release Date: 12/30/2004

On Mon, 2005-01-03 at 19:43 +0200, Hadi Jadallah wrote:
> Hi all,
> 
> I have this project that requires me to use 8 PSTN lines and possible more.
I was thinking 2 TDM cards with FXO modules.
> The I got to read the "Qs about FXO/FXS cards" thread and that
scared me.
> Can anybody recommend anything that is known to work ok with no mysterious
problems?
> I was thinking OpenSwitch12 cards. What do you guys think?
> Any help is appreciated.
Size up your need and consider a T1 or E1 interface. You are really
close to some markets break even point. Also expanding beyond 8 lines
should probably be done only on a digital line. Add to it the ability to
have faster ring and hangup detection, cleaner lines, and no concern
about impedance matching echo problems. 

Then you can look at the future growth potential. With a T1/E1 interface
already in place, it shouldn't be any real effort or even delay if you
want to add more circuits. From the switch side they just turn up a few
more DS0's and you coordinate to configure your side as well. No real
circuits have to be wired and no new equipment to add. Not to mention a
single TE100P card at $500 is cheaper than 2 TDM400 cards fully kitted
out.
-- 
Steven Critchfield <critch@basesys.com>

On Mon, 2005-03-01 at 19:43 +0200, Hadi Jadallah wrote:
> I have this project that requires me to use 8 PSTN lines and possible
> more. I was thinking 2 TDM cards with FXO modules.
> The I got to read the "Qs about FXO/FXS cards" thread and that
scared
> me.
> Can anybody recommend anything that is known to work ok with no
> mysterious problems?
> I was thinking OpenSwitch12 cards. What do you guys think?
> Any help is appreciated.
Never had a problem running Asterisk on Dell servers.  My Asterisk box
is a Dell 1600SC (with 1 FXS and 1 FXO), which is doing double duty as a
BackupPC server for a remote backup service for my clients.

Asterisk has been running beautifully for 9 months and counting.

HTH,

Ranbir
-- 
Kanwar Ranbir Sandhu
Linux Consultant
Systems Aligned Inc.
www.systemsaligned.com

I have an Asterisk with 2 TDM with 8 FXO modules and I don't have any
problems.

One thing to look for is that the cards don't share any IRQ.

Use a motherboard where you can assign IRQ to the PCI slot. I used an
Intel board.

Hope this help


On Mon, 3 Jan 2005 19:43:12 +0200, Hadi Jadallah <hadi@audiotelecom.net>
wrote:
> Hi all,
> 
> I have this project that requires me to use 8 PSTN lines and possible more.
I was thinking 2 TDM cards with FXO modules.
> The I got to read the "Qs about FXO/FXS cards" thread and that
scared me.
> Can anybody recommend anything that is known to work ok with no mysterious
problems?
> I was thinking OpenSwitch12 cards. What do you guys think?
> Any help is appreciated.
> 
> Regards,
> Hadi
> 
> --
> No virus found in this outgoing message.
> Checked by AVG Anti-Virus.
> Version: 7.0.290 / Virus Database: 265.6.7 - Release Date: 12/30/2004
> 
> 
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users@lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
> 
>

Hi Hadi,

I have been having troubles as well with the FXO/FXS cards from many
installations at customers I have performed. My company has decided to
forgo the FXO/FXS cards and now we use a T1 card with a channel bank.
The versitility and expandibility is tremendous. Plus I enjoy the fact
that I can punch down all the extensions into a 66 block.
We have used the zhone 10B channel bank, but they are a pain to use.
The best channel banks I have come across are from Rhino
www.channelbanks.com . They are totally auto config, just plug it in
and go. You might have to adjust the gain settings on them ,depending
on the phones. They are comming out with a model that can do FXO along
with FXS ports.

-James


On Mon, 3 Jan 2005 19:43:12 +0200, Hadi Jadallah <hadi@audiotelecom.net>
wrote:
> Hi all,
> 
> I have this project that requires me to use 8 PSTN lines and possible more.
I was thinking 2 TDM cards with FXO modules.
> The I got to read the "Qs about FXO/FXS cards" thread and that
scared me.
> Can anybody recommend anything that is known to work ok with no mysterious
problems?
> I was thinking OpenSwitch12 cards. What do you guys think?
> Any help is appreciated.
> 
> Regards,
> Hadi
> 
> --
> No virus found in this outgoing message.
> Checked by AVG Anti-Virus.
> Version: 7.0.290 / Virus Database: 265.6.7 - Release Date: 12/30/2004
> 
> 
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users@lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
> 
>

This is a pretty nice looking solution.... Is anyone else using it?  If
so, how is the quality?  I do like the idea of keeping the phone lines
where they are and not using the TDM400 series cards.

So far Digium's support has been underwhelming.  Today is day 3 since I
tried to contact them.  I'm not amused. 


Brian Greul
Texas Shirt Company
www.txshirts.com
713-802-0369 / 713-861-6261 (fax)

-----Original Message-----
From: Erik Espinoza [mailto:erik.espinoza@gmail.com] 
Sent: Monday, January 03, 2005 6:19 PM
To: timebandit001@gmail.com; Asterisk Users Mailing List -
Non-Commercial Discussion
Subject: Re: [Asterisk-Users] 8 pstn lines+ on Asterisk supported
hardware.

Or just get a couple of these:

http://www.ipeya.com/VOIP_Products.htm

(Specifically the 4 Ports FXO SIP VOIP-PSTN Gateway)

Available from eBay at a discount at:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=61839&item=574196
6868&rd=1

And do it all without worrying about irq's or the motherboard. Just let
the device do it's job.

Erik


On Mon, 3 Jan 2005 15:48:47 -0500, timebandit001@gmail.com
<timebandit001@gmail.com> wrote:
> I have an Asterisk with 2 TDM with 8 FXO modules and I don't have any
problems.
> 
> One thing to look for is that the cards don't share any IRQ.
> 
> Use a motherboard where you can assign IRQ to the PCI slot. I used an 
> Intel board.
> 
> Hope this help
> 
> On Mon, 3 Jan 2005 19:43:12 +0200, Hadi Jadallah
<hadi@audiotelecom.net> wrote:
> > Hi all,
> >
> > I have this project that requires me to use 8 PSTN lines and
possible more. I was thinking 2 TDM cards with FXO
modules.
> > The I got to read the "Qs about FXO/FXS cards" thread and
that
scared me.
> > Can anybody recommend anything that is known to work ok with no
mysterious problems?
> > I was thinking OpenSwitch12 cards. What do you guys think?
> > Any help is appreciated.
> >
> > Regards,
> > Hadi
> >
> > --
> > No virus found in this outgoing message.
> > Checked by AVG Anti-Virus.
> > Version: 7.0.290 / Virus Database: 265.6.7 - Release Date: 
> > 12/30/2004
> >
> >
> > _______________________________________________
> > Asterisk-Users mailing list
> > Asterisk-Users@lists.digium.com
> > http://lists.digium.com/mailman/listinfo/asterisk-users
> > To UNSUBSCRIBE or update options visit:
> >    http://lists.digium.com/mailman/listinfo/asterisk-users
> >
> >
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users@lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>
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