Displaying 20 results from an estimated 9000 matches similar to: "One way echo canceling?"
2008 Feb 29
1
IAX2's JB and DTMF
We've moved within the last two months to Asterisk 1.4.x
All remote facilities are connected via highspeed (9mbit) connections
(Over OpenVPN) to a central Asterisk box, acting as a voice router, that
funnels all calls into our Avaya Definity G3R via PRI.
When corporate employees visit the remote facilities and try to call the
G3R's voice mail system(Audix), DTMF is not recognized unless
2004 Dec 17
2
Definity PBX with a T100P & TN767E
Hey everybody,
I'm looking for some information that I'm not finding by searching the
2004 Asterisk archives.
I'm currently playing with a Digium T100P card and 2 Grandstream phones,
things are working well. I wanted to move on to linking our Definity
G3R Rev 8.2 to the T100P. Everything that I've read so far shows that
you need a TN464 to accomplish this. We have a TN767E
2005 Jan 12
2
T1 Timing Slips
Does anyone know how to monitor * to see if they are receiving timing slips
on a span connected to a T100P card? I am seeing b-channel restarts quite
often and also getting "No D-channels available" warnings from time to time.
Yesterday I had all the b-channels crash during a MeetMe Conference. Not
good! This PRI is connected to an Avaya Definity PBX that is onsite and
located in the
2009 Sep 02
4
More Echo
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<html>
<head>
</head>
<body bgcolor="#ffffff" text="#000000">
<span class="postbody">Greetings,<br>
I am running Asterisk 1.4.25 with Dahdi Complete
2.2.0, on a Digium TE121B PCI express card with a </span>VPMADT032<span
2005 May 26
4
YET Another echo issue PRI CARD Any help accepted :-)
Good Day all,
I have a Fractional PRI connected to my Asterisk Box via a T100P
card.
When I initiate a call out to phone number 123-8888 the call
sounds great no echo what so ever.
If the person at 123-8888 hangs up and calls me right back (same
handset on both sides) same trunk line
The call always has echo on it. The Asterisk sip extension
hears them selves echoing. The remote party
2007 Dec 28
1
Definity G3R and MWI
Hey everybody,
I've just spent the last two hours Googling and searching the Wiki. I'm
trying to find if there are any listings of codes for the Avaya Definity
G3R, to allow for an Asterisk system to turn on/off a phones MWI that is
attached to a G3. We are looking to use an Asterisk system as a voice
mail server.
I'm not having any luck, anybody have such information?
Thanks,
2007 Mar 15
2
Help! Echo problem even at T1 PRI?
Hello,
We have an asterisk setup at our client's site using a TE205P. The line to
telco is a 23 channels T1 PRI, however the line has random echo problems
(about 5-10% of the calls)!
Can anybody tell me if echo cancellation is really needed even at a T1 PRI
to the telco? Because people keep saying when they deploy voip solution in
Hong Kong using T1 PRI, there is no need of echo cancellation.
2005 Mar 22
4
TE405P and echo
I am using a SIP softphone (X-lite, SIPPS or Firefly) connected to an
Asterisk v 1.0.3 PBX. The PBX is also connected via a ISDN-PRI crossover
cable to a Avaya Definity Generic 3 PBX via a TE405P card. All outside of
the office calls go through the Definity. Here's the issue:
Calls to internal SIP extensions, Definity extensions, other offices within
our private network (through the
2004 Sep 24
0
Two questions for Asterisk setup (Definity G3R and NFAS Trunk Gro ups)
Hi,
I'm a lab manager / supervisor at our labs. We've had Asterisk in
use for over a year directly hooked to the PSTN - a no brainer for
configuration (although I had to fix some AT&T specific things in libpri).
Right now I have two big challenges. One is to hook our box up lineside to
a Lucent Definity G3R. Avaya is chasing this from their end, but we had the
highest level of
2006 Feb 06
7
BAD/GOOD Echo Cancel
>
> hi,
>
> How good or bad is the EC in Asterisk?
>
> Can anyone prove that it works at all and what it's limitations are?
>
> I ask cause I have some problems with this myself which variate from
> call to call, and I see from others that Echo Cancel is a quite common
> topic.
>
> Jan
>
>
I have installed systems that had absolutely no echo
2006 Feb 05
11
TE411P Really Bad Echo
I just implemented a system using a TE411P hardware echo cancellation
card. Per Digium, I setup zaptel.conf, and zapata.conf the same way as
I always have. To my surprise calls out to the PSTN had a terrible
echo. 1 - 2 second delay, and quite clear. The echo was so bad that I
had to remove the hardware echo cancellation module from the card. We
are only using the 1st span of this card right
2006 Oct 08
5
PRI issues
Hey everybody,
I've, within the last 3 weeks, moved over to a PRI from SBC/AT&T. I've
received several complaints about dropped calls. Reviewing the archives
on PRI and dropped calls shows that I should set the resetinterval=never
in the zapata.conf and restart. This hasn't helped.
The dropped calls have to date only been on outbound calls. Usually
within 2 to 3 minutes
2016 Mar 25
2
PRI error "ROSE REJECT"
PRI debug of the entire call would be great, also, switchtype would be
awesome as well.
Thanks!
Matthew Fredrickson
On Thu, Mar 24, 2016 at 4:07 PM, Carlos Rojas <crt.rojas at gmail.com> wrote:
> Hi
>
> Did you activate the pri debug on the cli asterisk?
>
> On Thu, Mar 24, 2016 at 12:59 PM, Carlos Chavez <cursor at telecomabmex.com>
> wrote:
>>
>>
2007 Jan 11
4
Echo...
I've spent all day today trying to fix an echo problem and I've made no
ground whatsoever.
I have Digium TDM400 with 3 FXO & 1 FXS. I've tried this computer at
two completely different sites with different phone providers. I've
tried compiling & installing different versions of Zaptel (currently
running 1.4.0, started at 1.2.9 and worked my way up). I've tried
2007 Jun 08
11
Bad Echo between SIP calls
Hi,
We have a PRI connection & when its was on test networks we had echo problems withoutside line.
So I bought a TE212P card resolve the echo problem. Which did to an extent. Its using asterisk 1.2.18 & RHEL4-Update 4.
But now when we are live, there is a terrible echo between 2 SIP calls. If I call the same extension from outside the voice is clear.
I am not sure whats
2006 Jun 20
3
TDM400P bad echo problem, tried lots of things
I have a bad echo problem on my TDM400P with one FXO module installed.
I have tried a few things, such as:
* setting rxgain and txgain to 0
* setting echocancelwhenbridged to no / yes
* settting echocancel to 64 / no / yes
* setting echocanceltraining to 800 / no / yes
* MG2 echo cancellation
* MARK2 echo cancellation
* KB1 echo cancellation
* AGGRESSIVE_SUPPRESSOR option of MARK2
Each time
2005 Aug 04
2
Some echo?
I have a 12 channel PRI with SNOM 190's and asterisk CVS from January.
Most calls are fine, all incoming calls are fine, but I am getting
echo on a significant number of outgoing calls.
The person on the other side hears a perfect call, but the SIPphone
side gets to hear themselves.
It happens 100% of the time to some numbers (outgoing only), and only
sporadically to others.
Has anyone
2005 Oct 07
1
Echo cancel on HFC-S cards and CIDNum setting on outgoing calls
hi all!
I'm running an Asterisk-box with bristuff-....RC8n and 2 HFC-S cards.
I m located in Vienna/Austria. I have the problem that on outgoing
calls i hear my voice as a short echo (about half a second). This
occurs not on every call.
I tried some changes in my zapata.conf, with rxgain and txgain
settings, but to me its
hard to find a configuration which is good for every call i make. Is
2006 Feb 08
3
more cpu intensive echo cancellers ?
Hi,
I've had some decent luck with the mark3 echo canceller from the zaptel
driver, echos on about 20% of the calls, people I've called say I sound
great now, but our side hears echos.
I was wondering if there was any way to tweak the current software
cancelers into using more CPU (and hopefully doing a better job, close
to a hardware canceler), I only have 10 lines, and a single call
2005 Sep 30
2
Echo Cancellation not working in Zapata.conf
I have echocancel=yes in zapata.conf but when I do a zap show channel 1,
I notice echo cancellation is turned off.
I followed the article that talks about the order in which the
statements need to be in zapata.conf to get echo canceling to work:
http://lists.digium.com/pipermail/asterisk-users/2005-June/110615.html
But it is still not working. Does anyone know how to get echo