<DIV>
<DIV>Hi,</DIV>
<DIV>I had ordered a TDM40B and developers kit a few months ago. I have everything installed and working, with one exception - sound quality. When placing a call it sounds like a very bad cordless phone - lots of hiss / static in the background. This even happens with the dialtone, though it is much worse one the call is connected. This does not occur when the phone is directly connected to the line. I have also tried a bunch of different phones. I tried messing with txgain and rxgain with no success.</DIV>
<DIV>I am running last week's CVS build, though earlier builds had the same problem. I originally was using a Pentium II 350, and the problem was much worse, I have since aquired an entirely different system - a pentium II 450, and it is slightly better, but not usable. CPU is about 5% normally and 10-15% during a call, so I don't think this is an issue. People I call do not complain about sound quality, so I guess it is just my side.</DIV>
<DIV>What can I try next? </DIV>
<DIV>Thanks</DIV>
<DIV> </DIV>
<DIV>Here are some configs:</DIV>
<DIV> </DIV>
<DIV>shore-server root # cat /proc/version<BR>Linux version 2.4.20-gentoo-r5 (<A target=_blank href="http://us.f96.mail.yahoo.com/ym/Compose?To=root@shore-server"><FONT color=#003399>root@shore-server</FONT></A>) (gcc version 3.2.2) #5 SMP Su<BR>n Aug 10 14:28:05 EST 2003</DIV>
<DIV> </DIV>
<DIV>shore-server root # cat /etc/zaptel.conf<BR>fxsks=5<BR>fxoks=1-4<BR>loadzone = us<BR>defaultzone=us</DIV>
<DIV> </DIV>
<DIV>shore-server root # cat /etc/asterisk/zapata.conf<BR>[channels]</DIV>
<DIV>context = default<BR>language = en<BR>callwaiting = no<BR>threewaycalling = no<BR>transfer = no<BR>cancelforward = no<BR>usecallerid = yes<BR>hidecallerid = no<BR>echocancel = yes<BR>echocancelwhenbridged = yes<BR>immediate = no<BR>rxgain = 10%</DIV>
<DIV>group = 1</DIV>
<DIV>context=default<BR>;use with FXO PCI card<BR>signalling = fxs_ks<BR>channel => 5</DIV>
<DIV>;use with FXS USB card<BR>;signalling = fxo_ls<BR>signalling = fxo_ks<BR>mailbox=6245<BR>callerid = "First Floor" <1><BR>channel => 1<BR>callerid = "Second Floor" <2><BR>channel => 2<BR>callerid = "Third Floor" <3><BR>channel => 3</DIV>
<DIV>context = doorbell<BR>immediate = yes<BR>callerid = "DoorBell" <4><BR>channel => 4</DIV>
<DIV> </DIV>
<DIV>shore-server root # cat /etc/asterisk/extensions.conf<BR>[default]<BR>exten => s,1,Dial(Zap/1&Zap/2&Zap/3,5)<BR>exten => s,2,Answer<BR>exten => s,3,Background,vm/6245/unavail<BR>exten => s,4,Voicemail,6245<BR>exten => s,5,hangup</DIV>
<DIV>exten => 6245,1,VoiceMailMain</DIV>
<DIV>exten => 1,1,Dial(Zap/1,20)<BR>exten => 2,1,Dial(Zap/2,20)<BR>exten => 3,1,Dial(Zap/3,20)<BR>exten => 10,1,Dial(Zap/1r2&Zap/2r2&Zap/3r2,60)</DIV>
<DIV>ignorepat => 9<BR>exten => _9.,1,AGI,/opt/masterhouse/asterisk_check_internet.agi<BR>;exten => _9.,2,Dial(Zap/5/${EXTEN:1})<BR>exten => _9.,99,Congestion</DIV>
<DIV>[doorbell]<BR>exten => s,1,Dial(Zap/1r4&Zap/2r4&Zap/3r4,30)<BR>exten => s,2,Answer<BR>exten => s,3,Background,vm/6245/unavail<BR>exten => s,4,Voicemail,6245<BR>exten => s,5,hangup</DIV>
<DIV> </DIV>
<DIV>shore-server root # cat /opt/masterhouse/asterisk_check_internet.agi<BR>#!/usr/bin/perl<BR>#<BR># AGI Script to check if a lock file exists and prompt</DIV>
<DIV>#<BR># Requires the Asterisk::AGI<BR>#<BR>#<BR>#</DIV>
<DIV>use Asterisk::AGI;</DIV>
<DIV>$AGI = new Asterisk::AGI;</DIV>
<DIV>my %input = $AGI->ReadParse();<BR>#foreach $value ( keys %input ) {<BR> #$AGI->verbose("X${value}X$input{$value}XX");<BR>#}</DIV>
<DIV>my $finished = 0;<BR>$extension = $input{"extension"};<BR>substr($extension, 0, 1) = '';</DIV>
<DIV>if ( -e "/var/lock/LCK..ttyS1" ) {<BR> $AGI->stream_file('internet_busy');<BR> $response = chr($AGI->wait_for_digit('5000'));<BR> if ($response ne "2") {<BR> $AGI->set_priority(99);<BR> exit;<BR> }<BR>}<BR>system ("/bin/killall diald");<BR>sleep 3;<BR>$AGI->exec('Dial', "Zap/5/$extension");<BR>system ("/usr/sbin/diald");</DIV>
<DIV> </DIV></DIV><p><hr SIZE=1>
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