similar to: Will Echo problems EVER be solved, I'm scare d

I came into this with my eyes wide open. I have read ABSOLUTELY EVERYTHING there is to be found on the net about avoiding echo problems BEFORE I even attempted to create a production system. Since lots of people are apparently using this in production environments now I just assumed that echo IS avoidable. As others have recommended, I created a test system with the proposed production

Thank you for the suggestions Andrew. I have not come across some of them before and will give them a shot. Based on my reading, changing the motherboard should have minimal impact unless that motherboard and the TDM400P don't get along (aka. IRQ sharing). I have disabled everything that is not needed and I do not believe I have any IRQ problems and I am NEVER wrong ;). Calls are crisp and

To start ztmonitor in quantitative mode you do the following. Assuming you are running Asterisk V1.0.9 you need to edit one line to ztmonitor.c in /usr/src/zaptel as per patch 2783 http://bugs.digium.com/bug_view_page.php?bug_id=0002783 Change line 261 fprintf(stderr, "Usage: ztmonitor <channel num> [-v] [-f FILE]\n"); to fprintf(stderr, "Usage: ztmonitor <channel

I have a couple SIP phones on a PIII 1Ghz 256MB * server with a TDM01B connected to the PSTN. Calls between SIP phones are clear. Calls to the PSTN are quite noisy. The other person does not hear noise but I hear quite a bit. It is not an annoying sound but definitely much noisier than typical PSTN or even cell phone calls. I believe I have a TDM400P REV H card. I definitely don't

I was wondering what peoples thoughts are about this. It seem that * works just as well on Linux 2.6 as 2.4. Maybe a few small issues here and there but generally it seems to me that * is just as stable on either platform. 2.4 is the obvious choice for the highest possiblility of a stable well tested environment but 2.6 seems to have some enticing benefits. Can Linux 2.6 be considered a

I'm experience echo on outgoing calls: Snom 200 ----> Asterisk ----> T100P ----> PRI ----> called party I am getting echo on the Snom 200 phone. The called party does not hear the echo. Since the PRI is digital, I don't really understand where the echo is coming from. I turned on echotraining, echocancellation=yes (128), and echowhenbridged in zapata.conf, to no avail.

Canuck15, No, I hadn't played with the gains. But I've now done so and no difference unfortunately. Thanks for the suggestion though. I have discovered that after Asterisk has answered the call and the remote caller has hung up, if I lift the receiver on a phone connected to the line (in parallel with Asterisk), Asterisk then DOES instantly hang up. Would it be reasonable to assume the

uname -a Linux asterisk 2.6.10-1.1771_FC2smp # 1 SMP Mon Mar 20 01:10:51 EST i686 i686 i386 GNU/Linux Processing hundreds of calls & faxes a day. No problem. If you are going to use a Fedora box make sure you yum update right after install then the kernel sources symbolic link is not horribly broken as it used to be. Otherwise, just go. -----Original Message----- From: canuck15 To:

Does anyone know how to maximize music on hold quality on calls inbound from PSTN? I know that it is common to have choppy and static sounding music on hold when connecting via PSTN but how can that be minimized? I assume that the bitrates, type of music, etc can minimize the effects. Does anyone have any experience in this area? Do you know where I should look for more information?

Folks, I've been following recent discussions regarding echo and echo training with much interest, since it's a problem we've never been able to eliminate here. We're facing two challenges presently, and they may be related (or not): a) Cisco 7960s in the office here echo back to our staff, but the customer hears decent sound. b) We've yet to be able to pass faxes through

Hi all, I'm unable to complete the installation of zaptel. I did a checkout today from cvs. When I do make clean; make install. It gives me an error at this portion of the installation: /include/linux/modversions.h -DSTANDALONE_ZAPATA -c wct4xxp.c cc -I. -O4 -g -Wall -DBUILDING_TONEZONE -DSTANDALONE_ZAPATA -c -o ztcfg.o ztcfg.c cc -c -fPIC -I. -O4 -g -Wall -DBUILDING_TONEZONE

Group Having trouble installing 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

I try to compile zaptel, without much success. I followed the guidelines in http://www.voip-info.org/wiki-Asterisk+Zaptel+Installation making dependencie 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

Hi, I have the SuSe9.2 installed in a box with a QuadBri. I have followed all the instructions i have found and this is my best result... only one error compiling zaptel :( .. y have the kernel sources an already made the links to its drwxr-xr-x 8 root root 328 Jun 16 20:20 . drwxr-xr-x 12 root root 320 Jun 16 14:05 .. drwxr-xr-x 3 root root 136 Jun 16 20:17 asterisk drwxr-xr-x 22 root

Chuck, Thank You I'm also going to try CentOS 3 The problem is I have SATA HDD and running in to trouble getting Linux installed. Will update after I test Ver 3 -----Original Message----- From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Chuck Bunn Sent: Monday, March 13, 2006 12:45 PM To: Asterisk Users Mailing List -

The value of 14800 is correct. I had issues with my TDM400p with 2x FXO's installed and using the Xlite client. I could not get the echo stable at the initial call. Changing to a hard phone made everything work correctly. I still had problems with the off location I called, but mostly worked great. To see the TX gain I created an extension with the Milliwatt command attached to it and called

If you have echo on the X100P's Mark setup chan_zap to pretrain the echo can, but it had a few issues until today which Mark nailed down the bug that caused the DTMF to be unreliable. Ok here is how you would do it: in your zapata.conf.sample: ; In some cases, the echo canceller doesn't train quickly enough and there ; is echo at the beginning of the call. Enabling echo training will

Hi, I'm still strugling with getting an easy to use conference system implemented. I did have app_conference running, but today I upgraded asterisk to 1.0.9 and it stopped working. I've tried following the instructions for compiling app_conference on 1.0.7 but it didn't work. So I went back to ztdummy (I've not had any luck getting this to compile on FC2). Anyhoo, I've

I am trying to obtain optimum gain settings for a bank of analog lines connected to a channel bank. My telco has provided a 'Type 102' test line to use for incoming level calibration. This is functionally equivalent to app Milliwatt(), but provides tone from the CO inwards. Question is, how should one use this a 0dbm test source with ztmonitor? Am I correct in understanding that a 0dbm

Dear list, I am back with my problem compiling zaptel 1.0.9 . I am running SUSE 9.3, with kernel linux-2.6.11.4-21.7 I have the kernel sources on disk. YAST tells me they match the compiled kernel. > # ls -l /usr/src >total 1 >drwxr-xr-x 7 root root 280 2005-07-16 13:24 . >drwxr-xr-x 12 root root 344 2005-07-16 11:27 .. >drwxr-xr-x 25 root root 736 2005-07-16 12:12