asterisk users - Feb 2006 - Best quad-port fxo solution with EC?

Hello All,

I am trying to figure out which way to go for a quad port fxo solution
with a good echo can on it.  My options are the sangoma remora, a
mediatrix fxo, or something similar.

The issue is that I would need a good EC.  This would be on about a 9000
foot loop, and the lines don't function well on a spa-3000 or zaptel tdm
4 port card.

Anyone have experience that drives them in a certain direction when
considering a good ec on a quad port?

I tried this also with some fxo clones, but echo killed it.

Thanks,
Greg

On Mon, 13 Feb 2006, gw@adcomcorp.com wrote:
> I am trying to figure out which way to go for a quad port fxo solution
> with a good echo can on it.  My options are the sangoma remora, a
> mediatrix fxo, or something similar.
>
> The issue is that I would need a good EC.  This would be on about a 9000
> foot loop, and the lines don't function well on a spa-3000 or zaptel
tdm
> 4 port card.
>
> Anyone have experience that drives them in a certain direction when
> considering a good ec on a quad port?
>
> I tried this also with some fxo clones, but echo killed it.
yes, the spa3k only seems to work well on short loops. on long loops (or 
cell calls) you can pretty much forget it, it suffers horrendous echo.

i am also searching for fxo gateways which don't suck, in my research I 
have compiled a list. maybe some listmembers can fill in the missing data:
http://bani.anime.net/gateways/

it is hard to get all the data since some vendors do not want to publish 
it (which i guess should be a real warning sign)

-Dan

Hi,

I have good results with the new TDM2400P serie (with the hardware echocan,
of course).
May be you must check one TDM2401E to see if it's ok for you...

Good luck.

Best Regards,
Francois BERGERET,
France.


-----Message d'origine-----
De : asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] De la part de
gw@adcomcorp.com
Envoy? : lundi 13 f?vrier 2006 07:36
? : asterisk-users@lists.digium.com
Objet : [Asterisk-Users] Best quad-port fxo solution with EC?


Hello All,

I am trying to figure out which way to go for a quad port fxo solution with
a good echo can on it.  My options are the sangoma remora, a mediatrix fxo,
or something similar.

The issue is that I would need a good EC.  This would be on about a 9000
foot loop, and the lines don't function well on a spa-3000 or zaptel tdm 4
port card.

Anyone have experience that drives them in a certain direction when
considering a good ec on a quad port?

I tried this also with some fxo clones, but echo killed it.

Thanks,
Greg
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I would suggest the Pika Technologies Daytona cards. We have been beta-testing
them with Asterisk for a while now and the results have been very, very good.
The only drawback right now is that they only support 1.09. 1.2.x support should
be ready later this quarter. Contact me off list if you would like more
information.

Bill Hunt
Stroudwater Contact Point
 
207 347 8080 x219
877 870 1234 Toll Free
 
www.stroudwater.com  
 
"Realize the Value of Customer Contact!"TM

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-----Original Message-----
From: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of C F
Sent: Monday, February 13, 2006 9:15 AM
To: f6hqz-m@hamwlan.net; Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: RE : [Asterisk-Users] Best quad-port fxo solution with EC?

In my expereince a channel bank with a digium single span card and a
Tellabs EC perfomed the best, but is too expensive (it gives you a
minimum of 8 ports). Next to that I use a mediatrix 1204, and compared
to all others I have tried works best. I have tried:
Sipura SPA3000
Digium TDM400 with 4 FXO mods


On 2/13/06, f6hqz-m@hamwlan.net <f6hqz-m@hamwlan.net>
wrote:
> Hi,
>
> I have good results with the new TDM2400P serie (with the hardware echocan,
> of course).
> May be you must check one TDM2401E to see if it's ok for you...
>
> Good luck.
>
> Best Regards,
> Francois BERGERET,
> France.
>
>
> -----Message d'origine-----
> De : asterisk-users-bounces@lists.digium.com
> [mailto:asterisk-users-bounces@lists.digium.com] De la part de
> gw@adcomcorp.com
> Envoy? : lundi 13 f?vrier 2006 07:36
> ? : asterisk-users@lists.digium.com
> Objet : [Asterisk-Users] Best quad-port fxo solution with EC?
>
>
> Hello All,
>
> I am trying to figure out which way to go for a quad port fxo solution with
> a good echo can on it.  My options are the sangoma remora, a mediatrix fxo,
> or something similar.
>
> The issue is that I would need a good EC.  This would be on about a 9000
> foot loop, and the lines don't function well on a spa-3000 or zaptel
tdm 4
> port card.
>
> Anyone have experience that drives them in a certain direction when
> considering a good ec on a quad port?
>
> I tried this also with some fxo clones, but echo killed it.
>
> Thanks,
> Greg
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> Asterisk-Users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>
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Hello There,
Yes I have a tellabs installed, in fact I may have been one of those who helped
you out :)

What I need though is only 4 ports, that's a bit overkill.  I also did the
spa and tdm400 with little luck.

Greg

-----Original Message-----
From: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of C F
Sent: Monday, February 13, 2006 9:15 AM
To: f6hqz-m@hamwlan.net; Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: RE : [Asterisk-Users] Best quad-port fxo solution with EC?

In my expereince a channel bank with a digium single span card and a Tellabs EC
perfomed the best, but is too expensive (it gives you a minimum of 8 ports).
Next to that I use a mediatrix 1204, and compared to all others I have tried
works best. I have tried:
Sipura SPA3000
Digium TDM400 with 4 FXO mods


On 2/13/06, f6hqz-m@hamwlan.net <f6hqz-m@hamwlan.net>
wrote:
> Hi,
>
> I have good results with the new TDM2400P serie (with the hardware 
> echocan, of course).
> May be you must check one TDM2401E to see if it's ok for you...
>
> Good luck.
>
> Best Regards,
> Francois BERGERET,
> France.
>
>
> -----Message d'origine-----
> De : asterisk-users-bounces@lists.digium.com
> [mailto:asterisk-users-bounces@lists.digium.com] De la part de 
> gw@adcomcorp.com Envoy? : lundi 13 f?vrier 2006 07:36 ? : 
> asterisk-users@lists.digium.com Objet : [Asterisk-Users] Best 
> quad-port fxo solution with EC?
>
>
> Hello All,
>
> I am trying to figure out which way to go for a quad port fxo solution 
> with a good echo can on it.  My options are the sangoma remora, a 
> mediatrix fxo, or something similar.
>
> The issue is that I would need a good EC.  This would be on about a 
> 9000 foot loop, and the lines don't function well on a spa-3000 or 
> zaptel tdm 4 port card.
>
> Anyone have experience that drives them in a certain direction when 
> considering a good ec on a quad port?
>
> I tried this also with some fxo clones, but echo killed it.
>
> Thanks,
> Greg
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
>
> Asterisk-Users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
>
> Asterisk-Users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>
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gw@adcomcorp.com wrote:
> Hello All,
> 
> I am trying to figure out which way to go for a quad port fxo solution
> with a good echo can on it.  My options are the sangoma remora, a
> mediatrix fxo, or something similar.
> 
> The issue is that I would need a good EC.  This would be on about a 9000
> foot loop, and the lines don't function well on a spa-3000 or zaptel
tdm
> 4 port card.
> 
> Anyone have experience that drives them in a certain direction when
> considering a good ec on a quad port?
> 
> I tried this also with some fxo clones, but echo killed it.
The nearest CO my POTS line goes to is 11 miles away.  My POTS line 
works when plugged into my TDM400P FXO port.  I DID have to fiddle with 
the gains a bit and I still have to get rid of the last of the echo, but 
overall it seems to work well.

-----Original Message-----
From: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Rich
Adamson
Sent: Monday, February 13, 2006 2:21 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Best quad-port fxo solution with EC?

> > I am trying to figure out which way to go for a quad port fxo 
> > solution with a good echo can on it.  My options are the sangoma 
> > remora, a mediatrix fxo, or something similar.
> > 
> > The issue is that I would need a good EC.  This would be on about a 
> > 9000 foot loop, and the lines don't function well on a spa-3000 or
> > zaptel tdm
> > 4 port card.
> > 
> > Anyone have experience that drives them in a certain direction when 
> > considering a good ec on a quad port?
> > 
> > I tried this also with some fxo clones, but echo killed it.
> 
> The nearest CO my POTS line goes to is 11 miles away.  My POTS line 
> works when plugged into my TDM400P FXO port.  I DID have to fiddle 
> with the gains a bit and I still have to get rid of the last of the 
> echo, but overall it seems to work well.
Are you sure the telco is not using fiber-extended line modules?
- Not certain.

Have you measured the loss from their milliwatt generator?
- Yes, results were way off, unless I did it wrong, my gains should be
about -2 on a fttp line but the measurements suggest about +7

(The numbers would be very interesting to see since a large number of
spa3k and tdm04 users at that distance have significant EC issues.)

- I'll post when I get more details...

Greg
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