similar to: Tellabs 2572 EC Photos here.

Hi All, Greg has been a huge help getting me going with this tellabs echo can, but I'm still having some problems getting it to work... I suspect I wired it up incorrectly, so I thought I'd see if anyone can point me in the right direction. Digium tech support pointed me to this doc for a standard T1 cable: http://www.arcelect.com/RJ48C_and_RJ48S_8_position_jack_.htm which looks like it

Hello All, I have a tellabs 2572 EC, and I was wondering if anyone with experience can wire this up for me... I have the proper tools and info, but not the time. It's easier to send it out and get it done. I know kb1_kanobe originally started the wiki thread, and rather than risking the card, would it be possible for me to send it out to him, have him do it, and send it back? Not to say I

Can anyone share any advice / documentation on how to configure a Tellabs 2572 T1 echo canceller? I connected one between a T100P and an Adtran TA750 FXO/FXS channelbank, but when echo cancellation is active I get a LOT of snap-crackle-pop (and other problems) on the line. The 2572 has a bunch of configuration options and they're impossible to guess without documentation, which I cannot find

Another question, Is anybody using the Tellabs 2572 EC with a PRI. When we moved from our analog lines to a PRI, I thought it would be simple stuff moving the EC to the PRI. Changed signaling, made sure that channel 24 wasn't being ECd and everything came up. But, I was getting complaints of random echo on the PRI. Local echo. Also, we weren?t able to do any kind of modem dial-outs (Adit

Good day all How do i set a connection between 2 asterisk servers via PRI In Bri I would set one to NT and TE How shoud the zapata.conf and zaptel.conf look And how should the cable be? All I got on the web was to set one to "pri_net"...this cant be all? And the cable > pin1 <--> pin4> pin2 <--> pin5> pin3 <--> pin6> pin4 <--> pin1> pin5 <-->

Since putting my Tellabs EC into place around 2 weeks ago, the echo problem has almost been eliminated. Reports of some very faint echo, but everybody is happy. My question is, if I were to also turn on the Asterisk Software EC, would this remove any residual echo that may make it past the Tellabs Hardware EC. Thanks, Doug

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

Hello, I have been researching Echo Can's for a while now, and wanted to post this out to the list to solicit feedback (and if my assumptions are correct, hopefully help others out)... If anyone out there knows anything about wiring up an Echo Can, and my outline below is incorrect, please let the me/list know.. I have posted the Documents I received from Tellabs at:

Hello, I have one UPS Infosec XP Pro 2500 RM and it works with windows sw RUPS2000. Now I want to install this UPS as virtual server on vmware ESXi vMA - (SUSE SLES 11SP2 linux). On this linux I have NUT 2.6.0 and I stopped now with configuration of genericups driver. Working cable (direct cable pin1-pin1 ... pin9-pin9) connection on Windows: PIN | PC | UPS

[please use reply-all when responding - the list does not modify the reply-to header.] > On Nov 16, 2015, at 8:24 AM, R?bert SZAKSZ <robert at szaksz.eu> wrote: > > Hello, > > I have one UPS Infosec XP Pro 2500 RM and it works with windows sw RUPS2000. > Now I want to install this UPS as virtual server on vmware ESXi vMA - (SUSE SLES 11SP2 linux). > On this linux I

I am getting ready to experiment with the Tellabs 2752 echo canceller. I have a 255D shelf (and power supply), but am struggling a little on connecting the echo canceller to a PRI. The shelf has 4 25-pair amphenol connectors. The two on the line side are marked "Receive In" and "Send Out". The 2 connectors on the drop side are marked "Send In" and "Receive

Hi! I have the chance to play with a couple of E400P cards, each installed in a IBM e330 XSeries servers (2 x 1GHz P-III CPU 2 Gb RAM, 36Gb SCSI HDD with RH8.0 2.4.18-smp kernel), and I'm trying to test/benchmark this e330/E400P combo generating calls thru /var/spool/asterisk/outgoing One e400P if doing the carrier work making calls and the other just receives the calls: Server#1

I'm having issues with echo. My setup is Polycom IP501 phones connected to an Adit 600 via T100P. 13 Lines going to the Adit. All echo so far is on the local side (Employees hears own voice, but only on some calls). Watching the channel with ztmonitor, I notice that TXGAIN is pegged out most of the time. RXGAIN is anywhere between 45 and 60%. Is it safe to assume that playing around

Hi Charles, >----- Original Message ----- >From: "Charles Lepple" <clepple at gmail.com> >To: "R?bert SZAKSZ" <robert at szaksz.eu> >Cc: nut-upsuser at lists.alioth.debian.org >Sent: Monday, November 16, 2015 3:20:17 PM >Subject: Re: [Nut-upsuser] Contact-closure UPS > >[please use reply-all when responding - the list does not modify the

30 says it's view only in the docs & I can't seem to change it, any other options? > Option 30 allows to set Module Shelf Address/ID.

Anyone gotten two of the 2572 echo canceller cards to work in a 253c mounting assembly? I can get one to work, but when I install two, one always fails. I've tried all my cards solo in the enclosure, on each side, and they all work properly when only 1 is installed, however, when I install two, one of them will come up, but the other always fails. Anyone know what might be causing this?

We are trying to install a Tellabs echo canceler on our T-1/PRI and having no luck. We can't get the lines out of AIS/RED/BLUE alarm when we put in the echocan. We are looking for a consultant (near New Orleans) to assist us in installing this device. Contact John DeMajo <jdemajo@stirlingprop.com> at +1-504-858-7689 --Eric -- Always do right. This will gratify some people and

Using TDM400's here and I have tried everything to cure the echo. I have used the Milliwatt test from the telco and from asterisk to tune RX/TX gain via a patched ztmonitor. What happens is I experience midcall echo. I turned on aggressive_suppressor and it seems to do great. The problem happens with misc. noise around the office will cause it to mute the other end of a phone call while

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

The Orion echo canceller is just ok. The Tellabs units work just as well if you don't mind 10 mins of soldering. I have the orion running with an adit 600 and a TE110P. Echo cancel is fairly good, but I have loads of problems with DTMF digits. -Darren ________________________________ From: asterisk-users-bounces@lists.digium.com