search for: fxotun

...known but I haven't come across it so here goes, maybe it'll help someone: I have terrible echo with asterisk 1.2, zaptel 1.2.12, and a TDM400P with 1 FXS and two FXO modules. The Mark2 echo canceller with Aggressive turned on was the only setting that would make it acceptable. I found fxotune with this zaptel version to be broken. I pulled the latest fxotune.c and fxotune.h from cvs and recompiled zaptel. fxotune then ran but I got the error: Could not fill input buffer - got -1 bytes, expected 4000 bytes Failure! After two days I installed a splitter to listen in and found out th...

I noticed the following came into cvs head yesterday: > Update of /usr/cvsroot/zaptel > In directory mongoose.digium.com:/tmp/cvs-serv2118 > > Modified Files: > fxotune.c wctdm.c wctdm.h > Log Message: > More TDM card echo API modifications. Making the fxotune program automatically > find the correct coefficients for the module. Lots of neat stuff. I did a complete cvs head checkout, compile, etc. Then compiled the zaptel/fxotune on RHv9 with one TDM...

I'm trying to learn to use fxotune and am getting the error: Could not fill input buffer - got -1 bytes, expected 4000 bytes Failure! when I run it. This is a new install of Asterisk 1.4 and zaptel 1.4. Also I can't really find an up to date how to on it. Am I supposed to place fxotune on my startup path and run fxotune -s...

My SM56 (Motorola X100P clone) has echo as hight as 38%, according to fxotune -d. But when trying to take action, it fxotune simply says it can't. ./fxotune -i3 -vvvv Running with parameters: doset=0 docalibrate=1 dodump=0 startdev=1 stopdev=252 calibtype=2 waveformtype=-1 delaytosilence=0 silenc...

Hey all, First of all, some background: Fxotune is a utility that is used to tune the hybrid on FXO modules For all of you with FXO modules out there, fxotune can help you adjust the analog and digital hybrid that is on the FXO interface and tune it so that it maximizes echo return loss. This means that it will reduce your default echo whic...

...standard analog sets have a varistor circuit to compensate for these variations in signal level, but it would appear that the TDM cards don't incorporate this kind of dynamic gain control. Zaptel allows you to control the transmit and receive gain at the interface card, but isn't that what fxotune is supposed to do? Tune those gains so that the echo is minimized? I don't want to play with gain only to undo the echo tuning done by fxotune. Does tinkering with the gain undo the tunings done by fxotune? Similarly with ztmonitor: Is tinkering with the gain using ztmonitor going to undo th...

Hi All; I got to know (reading on the wiki) that fxotune was have a bug, and it has been fixed. But I do not know if my current asterisk version contain the fixed one or not? How can I know? My current asterisk version is 1.4.22 Any advise? Regards Bilal

...stem, I didn't believe that, but its true. So, here's what it took to get it out of my system: 1. Download zaptel-trunk from SVN: As of this writing (6/20/06) using the "trunk" code instead of the 1.2.6 code was a major contributor in getting my echo to go away. 2. Use fxotune in zaptel-trunk: Find a silent-termination test number from the phone company and use FXOTune. I couldn't get it to dial right in order to get silence on the line. You can verify if it's working correctly by running it with an analog handset connected to your phone line. Pickup...

...Dahdi, for the below configuration that we were using it in the rc.local, how it will be? I think there should be something new to be used instead of ztcfg, what it is? And what about other lines? They need to be changed? touch /var/lock/subsys/local /sbin/modprobe wctdm /sbin/ztcfg -vv /usr/sbin/fxotune -s /usr/sbin/safe_asterisk Regards Bilal --- On Thu, 5/1/08, Steve Totaro <stotaro at totarotechnologies.com> wrote: > From: Steve Totaro <stotaro at totarotechnologies.com> > Subject: Re: zap not coming online on fedora 8 > To: "bilal ghayyad" <bilmar_gh at ya...

...Dahdi, for the below configuration that we were using it in the rc.local, how it will be? I think there should be something new to be used instead of ztcfg, what it is? And what about other lines? They need to be changed? touch /var/lock/subsys/local /sbin/modprobe wctdm /sbin/ztcfg -vv /usr/sbin/fxotune -s /usr/sbin/safe_asterisk Regards Bilal --- On Thu, 5/1/08, Steve Totaro <stotaro at totarotechnologies.com> wrote: > From: Steve Totaro <stotaro at totarotechnologies.com> > Subject: Re: zap not coming online on fedora 8 > To: "bilal ghayyad" <bilmar_gh at ya...

Hi, Well, I have a big problem with Asterisk, my problem is that when I'm in a conversation, using zap channels, in a moment the line has a interferce that produce a sound in the conversation, this sound is a electratical sound I think, I was reading about that and I found that the utility fxotune can help me to change some settings about the audio and the supression of interferences. My problem is that fxotuno does not work, I execute this script like that: #./fxotune -i 4 The output of this command is: /dev/zap/1 absent: No such device or address /dev/zap/2 absent: No such device or ad...

Is it still needed to run fxotune on the TDM24XXE cards with hardware echo cancellation? Jerry

Hey all, guess I didn't include enough info in my last query. I'm having massive echo problems on our sip<=>fxo connections & have been reading up on echo cancellation & such. When I try to run fxotune I get the following error: Could not fill input buffer Tuning module 25.Failure! The system has two of the digium 4port fxo cards & one T1 card (which isn't fully configured yet) (1-24 are the T1card) Has anyone seen this error? the only hits I've found on google all point to the so...

What does fxotune need to do its job correctly - complete silence on the line, or just absence of the dial tone? For how long? I've been trying to get a silent termination number out of my telco all morning and have come up empty. When I just dial "1" as some online guides suggest to break the dial...

I recently ran fxotune against our incoming PSTN lines to try and help with some echo problems. It produced the following fxotune.conf file: 2=8,253,2,244,255,10,244,3,253 3=4,0,0,0,0,0,0,0,0 4=4,0,0,0,0,0,0,0,0 I'm a bit surprised by all of the '0's for channels 3&4, esp. given that it's popul...

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

...g zaptel. Below is my server specs Intel Motherboard D101GGC TE405P CentOS-4.2-i386 Here is the output trying to do a 'make' =============================================== make clean rm -f torisatool makefw tor2fw.h radfw.h rm -f ztcfg torisatool makefw ztmonitor ztspeed zttool zttest fxotune rm -f *.o ztcfg tzdriver sethdlc sethdlc-new rm -f zonedata.lo tonezone.lo libtonezone.so *.lo rm -f *.ko *.mod.c .*o.cmd rm -rf .tmp_versions rm -f gendigits tones.h rm -f libtonezone* rm -f tor2ee rm -f fxotune rm -f core rm -f ztcfg-shared fxstest [root@exterm-dayton zaptel]# make cc -I. -O4 -g...

...cie results in: asterisk:/usr/src/linux # make dep *** Warning: make dep is unnecessary now. and make tells me make[1]: *** No rule to make target `modules'. Stop. asterisk:/usr/src/zaptel # make clean rm -f torisatool makefw tor2fw.h rm -f ztcfg torisatool makefw ztmonitor ztspeed zttest fxotune rm -f *.o ztcfg tzdriver sethdlc sethdlc-new rm -f zonedata.lo tonezone.lo libtonezone.so.1.0 *.lo rm -f *.ko *.mod.c .*o.cmd rm -rf .tmp_versions rm -f gendigits tones.h rm -f libtonezone* rm -f tor2ee rm -f fxotune rm -f core asterisk:/usr/src/zaptel # make linux26 cc -I. -O4 -g -Wall -DBUILDING...

...herboard D101GGC >TE405P >CentOS-4.2-i386 > > > >Here is the output trying to do a 'make' >=============================================== > >make clean >rm -f torisatool makefw tor2fw.h radfw.h rm -f ztcfg torisatool makefw >ztmonitor ztspeed zttool zttest fxotune rm -f *.o ztcfg tzdriver >sethdlc sethdlc-new rm -f zonedata.lo tonezone.lo libtonezone.so *.lo >rm -f *.ko *.mod.c .*o.cmd rm -rf .tmp_versions rm -f gendigits tones.h >rm -f libtonezone* rm -f tor2ee rm -f fxotune rm -f core rm -f >ztcfg-shared fxstest [root@exterm-dayton zaptel]...

...It varies in severity. It is sometimes bad enough to make it difficult to converse, but the users find it generally unacceptable. They miss their old phones, which just worked. As you can imagine, this is not the way to get them excited about this technology. I have used the 1.4 branch version of fxotune to tune the card. These are the echo statistics I get on the affected channels. > asterisk1 asterisk # fxotune -d -b 1 -w 1004 > Dumping module /dev/zap/1 > echo ratio = 0.0077 (85.5 / 11145.0) > Done! > asterisk1 asterisk # fxotune -d -b 3 -w 1004 > Dumping module /dev/zap/3 &g...