Re: [asterisk-users] Echo Problems with IAXy

2007-10-10 Thread Mojo with Horan & Company, LLC
Typically, echo isn't heard on the _far_ end, unless it is created by 
acoustic effects within the phone hooked up to the IAXy.  Can the 
microphone hear the speaker?   You said you've tried numerous analog 
phones, so that kind of rules that out, but curious...


Sean Dennis wrote:
>  From what I have found the IAXy doesn't handle echo very well.  About 
> half of the analog phones I try on the adapter create an echo on the far 
> end.  The person I am talking to can hear themselves.  I am using 
> Asterisk 1.4 and have tried it with 1.2 as well with the same results.  
> Is there is anything I can do in Asterisk to help solve the echo problem? 
>
> Thanks,
>
> Sean Dennis
>
>
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[asterisk-users] Echo Problems with IAXy

2007-10-08 Thread Sean Dennis
 From what I have found the IAXy doesn't handle echo very well.  About 
half of the analog phones I try on the adapter create an echo on the far 
end.  The person I am talking to can hear themselves.  I am using 
Asterisk 1.4 and have tried it with 1.2 as well with the same results.  
Is there is anything I can do in Asterisk to help solve the echo problem? 

Thanks,

Sean Dennis


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Re: [asterisk-users] echo problems

2007-09-30 Thread Jaswinder Singh
Also many people using softphone turn's on mic boost in windows xp which
also makes echo if it is set to very loud .

On 30/09/2007, Philipp Kempgen <[EMAIL PROTECTED]> wrote:
>
> http://linux.sgms-centre.com/misc/netiquette.php#threading
> http://linux.sgms-centre.com/misc/netiquette.php#toppost
> SCNR
>
> Regards,
>   Philipp Kempgen
>
> --
> amooma GmbH - Bachstr. 126 - 56566 Neuwied - http://www.amooma.de
> Let's use IT to solve problems and not to create new ones.
>   Asterisk? -> http://www.das-asterisk-buch.de
>   My pick of the month: rfc 2822 3.6.5
>
> ___
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Re: [asterisk-users] echo problems

2007-09-29 Thread Philipp Kempgen
http://linux.sgms-centre.com/misc/netiquette.php#threading
http://linux.sgms-centre.com/misc/netiquette.php#toppost
SCNR

Regards,
  Philipp Kempgen

-- 
amooma GmbH - Bachstr. 126 - 56566 Neuwied - http://www.amooma.de
Let's use IT to solve problems and not to create new ones.
  Asterisk? -> http://www.das-asterisk-buch.de
  My pick of the month: rfc 2822 3.6.5

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[asterisk-users] echo problems

2007-09-29 Thread Apa Minerala
Normally I use 

DID provider - asterisk - sip terminator ( both DID provider and sip terminator 
use g729, so asterisk just passes the call between the 2 of them ).

All works wonderfull, no echo etc.

But we would like to offer the service with softphones. 

However users experience echo, be it with gsm, ulaw or alaw.

Someone would like to share from his experience for  solving this echo problem? 

If ta detailed answer is too much, just telling me where to look for would be 
great. I searched voip-info.org  but I wasn't able to find something which fits 
my exact problem, since I don't use TDM cards

Best regards,

Apa

Michiel van Baak <[EMAIL PROTECTED]> wrote: On 16:34, Sat 29 Sep 07, Doug wrote:
> At 04:57 9/29/2007, Michiel van Baak, wrote:
>  >On 21:47, Fri 28 Sep 07, Doug wrote:
>  >> At 20:53 9/28/2007, Tzafrir Cohen wrote:
>  >>  >On Fri, Sep 28, 2007 at 01:28:18PM -0500, Doug wrote:
>  >>  >>  >How do you do that when your single network connection is gone?
>  >>  >>
>  >>  >> Any suggestions on dual-wan routers?  We can't get this
>  >>  >> stupid Twin-Wan to work:
>  >>  >>
>  >>  >> http://www.xincom.com/twinwan.php
>  >>  >
>  >>  >A PC?
>  >>
>  >> OS?  App? ;^)
>  >
>  >We use OpenBSD with carp+pfsync for this.
>  >There are some good tutorials on the interweb on how to do
>  >this.
> 
> Which tube do I go through to get to the InterWeb?

You can use my doc to setup redundant firewalling:
http://michiel.vanbaak.info/page/soekrisobsdcarp.htm

Read the PF faq for information on how to loadbalance 2
internet connections:
http://www.openbsd.org/faq/pf/pools.html

-- 

Michiel van Baak
[EMAIL PROTECTED]
http://michiel.vanbaak.eu
GnuPG key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x71C946BD

"Why is it drug addicts and computer afficionados are both called users?"


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Re: [asterisk-users] Echo problems on ISDN. (mainly incoming calls)

2006-10-11 Thread Andrew Joakimsen

Please read these with care:

Causes of Echo http://www.voip-info.org/wiki/view/Causes+of+Echo

Asterisk Echo Avoidance: http://www.voip-info.org/wiki-Asterisk+Echo+Avoidance

Until you understand echo it will be impossible to eliminated it.
Notice that you have a digital connection and your SIP phones are the
same. The echo is caused at the other end of the call. Have you any
VoIP providers to test with? You will probably have the same results

--Andrew



On 10/11/06, John McEntee <[EMAIL PROTECTED]> wrote:

OK I have been battling with echo problems with asterisk on ISDN for a
few weeks now, and still can't solve it (although I think I have tried
everything I can find.)

I will try a post everything I think is possibly relevant that I can
remember with the hope someone can point me in the right direction.

current spec I am using (Trixbox 1.0 was still in beta at the time an
didn't detect the TE110 card, and modules didn't load properly when I
tried manually either )

[EMAIL PROTECTED] 2.8
Wildcard TE110P ISDN PRI card (set to E1, I live in the UK)
Telewest Q931 ISDN connection (currently 8 lines 100 phone numbers)
dell SC1425 server (3.2 Ghz, 512MB, 80GB)
SIP phones aastra 9133i run 1.4.0 firmware.

This is on a live system with about 50 users. (I have a identical system
for DR so can easily test out of hours)

Most the time there is no echo,
If I phone my wife (on a normal telewest analog line) I get a slight
echo (fairly quiet) that she does not noticed. This happens on other
phone calls but the user can tolerate this (would prefer to solve it)

If a big customer (one with several thousand employees) phones me, I can
hear a very loud echo with an annoying delay (0.5-1.0 sec, ish), which
the users cannot tolerate. The customer does not get the echo, currently
the user phones back?

Any suggestion on How to solve the echo problems?

I have tried with echo cancellation at 800 and changing the RX and TX
gains to no effect. I have read that ISDN should not have echo problems
and that may I sould ask about the gains on the line provided by the
telco. Can anyone give me more information about this as if I phone
Telewest I want to pretend that my PBX supplier has told me to ask XXX.
As the first thing they ask me is to contact my my PBX supplier (I had a
slight problem getting the ISDN card to initially connect)


Thanks

John


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Re: [asterisk-users] Echo problems on ISDN. (mainly incoming call s)

2006-10-11 Thread Ron Wellsted
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Colin Anderson wrote:
> what happens when you drop your gains? use /etc/asterisk/zaptel.conf and
> fiddle with tx and rx values. Works, most of the time. 
> 
> -Original Message-
> From: John McEntee [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, October 11, 2006 12:25 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: [asterisk-users] Echo problems on ISDN. (mainly incoming calls)
> 
> 
> OK I have been battling with echo problems with asterisk on ISDN for a 
> few weeks now, and still can't solve it (although I think I have tried 
> everything I can find.)
> 
> I will try a post everything I think is possibly relevant that I can 
> remember with the hope someone can point me in the right direction.
> 
> current spec I am using (Trixbox 1.0 was still in beta at the time an 
> didn't detect the TE110 card, and modules didn't load properly when I 
> tried manually either )
> 
> [EMAIL PROTECTED] 2.8
> Wildcard TE110P ISDN PRI card (set to E1, I live in the UK)
> Telewest Q931 ISDN connection (currently 8 lines 100 phone numbers)
> dell SC1425 server (3.2 Ghz, 512MB, 80GB)
> SIP phones aastra 9133i run 1.4.0 firmware.
> 
> This is on a live system with about 50 users. (I have a identical system 
> for DR so can easily test out of hours)
> 
> Most the time there is no echo,
> If I phone my wife (on a normal telewest analog line) I get a slight 
> echo (fairly quiet) that she does not noticed. This happens on other 
> phone calls but the user can tolerate this (would prefer to solve it)
> 
> If a big customer (one with several thousand employees) phones me, I can 
> hear a very loud echo with an annoying delay (0.5-1.0 sec, ish), which 
> the users cannot tolerate. The customer does not get the echo, currently 
> the user phones back?
> 
> Any suggestion on How to solve the echo problems?
> 
> I have tried with echo cancellation at 800 and changing the RX and TX 
> gains to no effect. I have read that ISDN should not have echo problems 
> and that may I sould ask about the gains on the line provided by the 
> telco. Can anyone give me more information about this as if I phone 
> Telewest I want to pretend that my PBX supplier has told me to ask XXX. 
> As the first thing they ask me is to contact my my PBX supplier (I had a 
> slight problem getting the ISDN card to initially connect)
> 
> 
> Thanks
> 
> John

I have found that Telewest are terrible for echo.  If a one of the
endpoints is on a Telewest system, we get echo (with latency), no matter
if the other end point is via BT or Sipdiscount.  We often call or are
called by people who are on TW centrex systems and get exactly the sort
of echo you describe, it does seem to be worst on inbound calls (TW -> BT).


- --
Ron Wellsted
[EMAIL PROTECTED] http://www.wellsted.org.uk
N 52.567623, W 2.137621 Linux Counter No. 202120
FWD:519961
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RE: [asterisk-users] Echo problems on ISDN. (mainly incoming call s)

2006-10-11 Thread Colin Anderson
what happens when you drop your gains? use /etc/asterisk/zaptel.conf and
fiddle with tx and rx values. Works, most of the time. 

-Original Message-
From: John McEntee [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 11, 2006 12:25 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [asterisk-users] Echo problems on ISDN. (mainly incoming calls)


OK I have been battling with echo problems with asterisk on ISDN for a 
few weeks now, and still can't solve it (although I think I have tried 
everything I can find.)

I will try a post everything I think is possibly relevant that I can 
remember with the hope someone can point me in the right direction.

current spec I am using (Trixbox 1.0 was still in beta at the time an 
didn't detect the TE110 card, and modules didn't load properly when I 
tried manually either )

[EMAIL PROTECTED] 2.8
Wildcard TE110P ISDN PRI card (set to E1, I live in the UK)
Telewest Q931 ISDN connection (currently 8 lines 100 phone numbers)
dell SC1425 server (3.2 Ghz, 512MB, 80GB)
SIP phones aastra 9133i run 1.4.0 firmware.

This is on a live system with about 50 users. (I have a identical system 
for DR so can easily test out of hours)

Most the time there is no echo,
If I phone my wife (on a normal telewest analog line) I get a slight 
echo (fairly quiet) that she does not noticed. This happens on other 
phone calls but the user can tolerate this (would prefer to solve it)

If a big customer (one with several thousand employees) phones me, I can 
hear a very loud echo with an annoying delay (0.5-1.0 sec, ish), which 
the users cannot tolerate. The customer does not get the echo, currently 
the user phones back?

Any suggestion on How to solve the echo problems?

I have tried with echo cancellation at 800 and changing the RX and TX 
gains to no effect. I have read that ISDN should not have echo problems 
and that may I sould ask about the gains on the line provided by the 
telco. Can anyone give me more information about this as if I phone 
Telewest I want to pretend that my PBX supplier has told me to ask XXX. 
As the first thing they ask me is to contact my my PBX supplier (I had a 
slight problem getting the ISDN card to initially connect)


Thanks

John


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[asterisk-users] Echo problems on ISDN. (mainly incoming calls)

2006-10-11 Thread John McEntee
OK I have been battling with echo problems with asterisk on ISDN for a 
few weeks now, and still can't solve it (although I think I have tried 
everything I can find.)


I will try a post everything I think is possibly relevant that I can 
remember with the hope someone can point me in the right direction.


current spec I am using (Trixbox 1.0 was still in beta at the time an 
didn't detect the TE110 card, and modules didn't load properly when I 
tried manually either )


[EMAIL PROTECTED] 2.8
Wildcard TE110P ISDN PRI card (set to E1, I live in the UK)
Telewest Q931 ISDN connection (currently 8 lines 100 phone numbers)
dell SC1425 server (3.2 Ghz, 512MB, 80GB)
SIP phones aastra 9133i run 1.4.0 firmware.

This is on a live system with about 50 users. (I have a identical system 
for DR so can easily test out of hours)


Most the time there is no echo,
If I phone my wife (on a normal telewest analog line) I get a slight 
echo (fairly quiet) that she does not noticed. This happens on other 
phone calls but the user can tolerate this (would prefer to solve it)


If a big customer (one with several thousand employees) phones me, I can 
hear a very loud echo with an annoying delay (0.5-1.0 sec, ish), which 
the users cannot tolerate. The customer does not get the echo, currently 
the user phones back?


Any suggestion on How to solve the echo problems?

I have tried with echo cancellation at 800 and changing the RX and TX 
gains to no effect. I have read that ISDN should not have echo problems 
and that may I sould ask about the gains on the line provided by the 
telco. Can anyone give me more information about this as if I phone 
Telewest I want to pretend that my PBX supplier has told me to ask XXX. 
As the first thing they ask me is to contact my my PBX supplier (I had a 
slight problem getting the ISDN card to initially connect)



Thanks

John


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[Asterisk-Users] Echo Problems

2005-05-18 Thread Terry Wade








Hi Guys 

 

I have installed an * system and we seem to have loads of
echo problems. Sometimes worst than others. I have googled and voip-info ‘
ed my little mind out. I am running 3 x zaphfc cards in the machine. Not sharing
irq’s, other than themselves. It is on a PIII 1Gig machine with 1Gb ram. 

 

My question is this. Does the 2.6 kernel affect (or can) the
echo? 

Could a busy network cause this problem? 

Vmstat – shows cpu usage spike to about 48%

 

Starting to pull my hair out. Any suggestions would be muchly
appreciated. 

 

Kind Regards 

 

Terry Wade

Mobile: +27 82 802-5750

Office: +27 11
784-7642

Fax: +27 11
388-0855

 

Linux is
like a Wigwam - No gates, no windows, Apache inside

 

Disclaimer
and Confidentiality Warning

 

This
message is intended for the addressee only. If you are not the intended
recipient of this message, you are notified that any distribution, use of or
copying of this communication is strictly prohibited. If you have received the
communication in error, please notify the sender immediately. The views and
opinions expressed in this message are those of the individual sender of this
message and do not necessarily represent the views and opinions of ActiCom.
Consequently, ActiCom does not accept responsibility for such views and
opinions and this message should not be read as representing the views and
opinions of ActiCom without subsequent written confirmation. Each page attached
hereto must also be read in conjunction with this disclaimer.

 






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[Asterisk-Users] Echo problems

2005-01-02 Thread Humberto Aicardi
Hi to all,

I recently installed a Fritz PCI ISDN BRI card in hope that the echo
problems would go away, but unfortunately it didn't solve the problem when
calling analog lines, when calling cell phones and PBX with a E1/T1 it works
great.

Can anyone suggest what would be a way to eliminate the echo problem
using a BRI line. Would a BRI gateway solve the echo problem? Is there a PCI
ISDN BRI card with echo cancellation? Please send some help.

Thanks in advance,
Humberto Aicardi


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RE: [Asterisk-Users] Echo problems polycom and x100p

2004-10-11 Thread Chris HARIGA
Title: Echo problems polycom and x100p








I have 3 X100P and 5 Polycom IP600.

I copy below my zapata.conf:

 

Best regards,

 

Chris HARIGA

 

[channels]

language=en

context=default

switchtype=national

signalling=fxo_ls

rxwink=300 
; Atlas seems to use long (250ms) winks

usecallerid=yes

hidecallerid=no

callwaiting=yes

callwaitingcallerid=yes

threewaycalling=yes

transfer=yes

cancallforward=yes

callreturn=yes

echocancel=32

echocancelwhenbridged=yes

echotraining=yes

relaxdtmf=yes

rxgain=-2.0

txgain=-2.0

group=1

callgroup=1

pickupgroup=1

immediate=no

callerid=asreceived

busydetect=yes

busycount=12

callprogress=no

musiconhold=default

 

signalling=fxs_ks

context=incoming

channel=>1-3

group=1

 

 









From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Sean Garland
Sent: Monday, October 11, 2004
5:24 PM
To: [EMAIL PROTECTED]
Subject: [Asterisk-Users] Echo
problems polycom and x100p



 

I am having a persistent echo problem with my polycom sip IP
500 phones.  I have two x100p cards for the analog phone lines to come
into the * box.  The echo is very slight sometimes, to very
noticeable.  Also, there is often some beeps in the background at random
times.  The beeps can also be heard on messages which leads me to believe
it’s the x100p cards or something…  For those of you that have
a fully functional system with polycom ip phones, what were the settings that
worked the best to cancel the beeps and echo?  Thanks a ton

 

Sean Garland 
Siskiyou
Technology Consultants 








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Description: S/MIME cryptographic signature
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Re: [Asterisk-Users] Echo problems polycom and x100p

2004-10-11 Thread Eric Wieling
Sean Garland wrote:
I am having a persistent echo problem with my polycom sip IP 500 
phones.  I have two x100p cards for the analog phone lines to come into 
the * box.  The echo is very slight sometimes, to very noticeable.  
Also, there is often some beeps in the background at random times.  The 
beeps can also be heard on messages which leads me to believe it’s the 
x100p cards or something…  For those of you that have a fully functional 
system with polycom ip phones, what were the settings that worked the 
best to cancel the beeps and echo?  Thanks a ton
In zconfig.h use the MARK3 echo can
In zapata.conf echocancel=256 echotraining=600 or 800
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[Asterisk-Users] Echo problems polycom and x100p

2004-10-11 Thread Sean Garland
Title: Echo problems polycom and x100p






I am having a persistent echo problem with my polycom sip IP 500 phones.  I have two x100p cards for the analog phone lines to come into the * box.  The echo is very slight sometimes, to very noticeable.  Also, there is often some beeps in the background at random times.  The beeps can also be heard on messages which leads me to believe it’s the x100p cards or something…  For those of you that have a fully functional system with polycom ip phones, what were the settings that worked the best to cancel the beeps and echo?  Thanks a ton


Sean Garland

Siskiyou Technology Consultants



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[Asterisk-Users] Echo problems with mISDN?

2004-08-03 Thread CK








 

Hi all,

I’m using a AVM Fritz! Card (TE-Mode) and a Longshine LCS-8051 with HFC-S-Chip (NT-Mode) together with the chan_misdn.
I build the system like it was explained at http://isdn.jolly.de.
At first I used the pbx4linux software from jolly (http://isdn.jolly.de) and then I changed to
asterisk. Both systems works fine, but I have (in both systems) the same echo
problem. When I call a person (ISDN to ISDN), I have an echo, and the other
person has no echo! But when I call to a cell phone (ISDN to GSM), I don’t
have an echo! So this works fine.

 

How can I get rid of this echo? Maybe I have to buy another card? Or is there something wrong with the mISDN
drivers?

 

Regards,

Christian

 

 








[Asterisk-Users] Echo problems using AVM Fritz!PCI Card

2004-06-08 Thread Gonzalo Servat
Hi All,

I'm running the latest asterisk CVS code (from experimental), and
hardware-wise an AVM Fritz!PCI Card, together with chan_capi 0.3.3. 
The problem is that any inbound/outbound calls result in echo on MY end
(the asterisk end). I've played with the echo settings in capi.conf
(mainly turning on echocancel and echosquelch, also tried playing with
rxgain/txgain) to no avail. The only setting that has helped (somewhat)
so far is enabling echosquelch. The echo disappears but a new problem
arises. When the person on the other end starts to talk, the first bit
is chopped off, and the last bit (before they go quiet) so it almost
sounds as though it's doing voice detection and transmitting only when
it detects voice. Also, if the other person is talking and i start to
talk, they get cut off immediately so this isn't a practical workaround.

Any help will be muchly appreciated.

Regards,
Gonzalo

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[Asterisk-Users] Echo Problems

2004-03-17 Thread Jayson Vantuyl
I've recently signed up with voicepulse to test their IAX termination.

Right now, I have the following setup:

Rhino channel bank
T400P
Dual 900 MHz Server
Latest CVS Asterisk
Intel EE100 NICs

When I dial internally or out over our T1, everything is crystal clear.
When I dial a call through voicepulse, there is a heinous echo.  The
worst part is that it isn't to bad on my end, but the person on the
remote end hears a serious echo of their voice.

I've tried tweaking echo cancel and echo training but neither helped.
Interestingly, I tried the Digium test IAX and briefly chatted with
someone there.  He noted a very small amount of echo but nothing as
pronounced as when I call cellphone through voicepulse.

I'm about to sign up through NuFone for some testing, but I'd be
interested to know if anyone else has any echo cancelling issues with
IAX or otherwise that I should know about.

-- 
Jayson Vantuyl
Computing Edge, Inc.
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[Asterisk-Users] echo problems

2004-01-23 Thread jharragi
New complile causing trouble... 
How do you enable MARK2 echo can with DAGGRESSIVE_ SUPPRESSION? 
looks like zconfig.h 
..but I have quite a bit of echo on a bridgeded call and 
echocancelwhenbridged=no 
 
John


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