<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv=Content-Type content="text/html; charset=us-ascii">
<meta name=ProgId content=Word.Document>
<meta name=Generator content="Microsoft Word 10">
<meta name=Originator content="Microsoft Word 10">
<link rel=File-List href="cid:filelist.xml@01C4F70D.7FB4D710">
<!--[if gte mso 9]><xml>
<o:OfficeDocumentSettings>
<o:DoNotRelyOnCSS/>
</o:OfficeDocumentSettings>
</xml><![endif]--><!--[if gte mso 9]><xml>
<w:WordDocument>
<w:SpellingState>Clean</w:SpellingState>
<w:GrammarState>Clean</w:GrammarState>
<w:DocumentKind>DocumentEmail</w:DocumentKind>
<w:EnvelopeVis/>
<w:Compatibility>
<w:ApplyBreakingRules/>
</w:Compatibility>
<w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel>
</w:WordDocument>
</xml><![endif]-->
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;
mso-font-charset:0;
mso-generic-font-family:swiss;
mso-font-pitch:variable;
mso-font-signature:1627421319 -2147483648 8 0 66047 0;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{mso-style-parent:"";
margin:0in;
margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:12.0pt;
font-family:"Times New Roman";
mso-fareast-font-family:"Times New Roman";}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;
text-underline:single;}
a:visited, span.MsoHyperlinkFollowed
{color:purple;
text-decoration:underline;
text-underline:single;}
span.EmailStyle17
{mso-style-type:personal;
mso-style-noshow:yes;
font-family:Arial;
mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;
mso-bidi-font-family:Arial;
color:windowtext;}
span.EmailStyle18
{mso-style-type:personal-reply;
mso-style-noshow:yes;
mso-ansi-font-size:10.0pt;
mso-bidi-font-size:10.0pt;
font-family:Arial;
mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;
mso-bidi-font-family:Arial;
color:navy;}
span.SpellE
{mso-style-name:"";
mso-spl-e:yes;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.25in 1.0in 1.25in;
mso-header-margin:.5in;
mso-footer-margin:.5in;
mso-paper-source:0;}
div.Section1
{page:Section1;}
-->
</style>
<!--[if gte mso 10]>
<style>
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-parent:"";
mso-padding-alt:0in 5.4pt 0in 5.4pt;
mso-para-margin:0in;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman";}
</style>
<![endif]-->
</head>
<body lang=EN-US link=blue vlink=purple style='tab-interval:.5in'>
<div class=Section1>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I am also running a pretty recent version
albeit not today’s CVS, but CVS-HEAD-11/20/04-11:29:52. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>D you have problems b/w the Ciscos or only
when going out to the PSTN??<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I have 35 7960s with a PRI and no problems
that you speak of.<span style='mso-spacerun:yes'> </span>I do get an <span
class=SpellE>occational</span> dropped call but that may be the DHC server
lease running out on the phones.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Can you tell us a little more about your
setup???<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><span
style='mso-spacerun:yes'> </span><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b>
asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Paul Rodan<br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, January 10, 2005
11:58 AM<br>
<b><span style='font-weight:bold'>To:</span></b> 'Asterisk Users Mailing List -
Non-Commercial Discussion'<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Asterisk-Users]
Static/Breaking up after I upgraded Asterisk aswell as a crash - Can't trace
bug</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>We use Cisco 7960’s with the
P0S3-7-3-00 firmware, which was the latest as of a few months ago.<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>I’ve so far found
CVS-v1-0-10/26/04-07:28:01 to be the best version of Asterisk I’ve found.
I’ve upgraded regularly in the past, like every other week. I upgraded to
this version and also encountered no issues. About a month later I tried
upgrading, to some version in November, and that’s when all the phones in
my office started experiencing quality issues, breaking up, garbled voice,
maybe static. One person reported they had issues transferring calls, but I
could not verify. So I immediately downgraded back to 10-26-04 and stayed on
that version up until several days ago, when I hoped whatever bug was
introduced had been repaired. So I upgraded to CVS-v1-0-01/06/05-01:53:07 and
for a time I thought everything was fine, but now I get the occasional report
of quality issues again, phones breaking up/garble. It’s not as bad as it
was before, but I myself have started experiencing quality issues on my phone
and I’ve never experienced these issues before. So whatever bug existed,
still exists. It might not be a bug, but maybe some modification to chan_sip
has broken compatibility with the Cisco 79xx phones. Unfortunately I am not a developer
and am not able to take apart and put back together again the source, to adapt
it to my own needs, so I’m at the mercy of the Asterisk developers. <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Nothing has changed in our network
topology, no new phones added, no computers share the subnets with the phones.
They’re part of the same physical network as our computers, but do have
their own separate subnet. I haven’t tried other phones, or converters,
but I can if anybody wants me to do further analysis. What I have here is a
unique situation to single out a quality issue, a bug, and I’d like to
help by testing different versions of chan_sip.c to see which
option/modification in fact created the quality issue. I would stay on this
version of Asterisk longer (despite the occasional quality issues) if it
weren’t for the fact that yesterday evening the Asterisk daemon crashed
for no apparent reason. Until this time, the 6 months I’ve been running
Asterisk, Asterisk has never crashed on me. All the phones in one of my Call
Groups started ringing for no reason, when I answered, nobody was there. I had
to go and answer each phone individually, there wasn’t anybody on any
phone. After the last was answered and hung up, the phones were quiet. But when
I tried to access voicemail or dial out, nothing, that’s how I’d
know Asterisk had crashed, the /var/log/asterisk/messages file revealed
nothing, absolutely nothing, neither did /var/log/messages<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>So tonight I’m going back down
to 10-26 and I’d bet money the quality issues disappear, it’s
happened before. I hate downgrading, I feel like I’m now stuck at a
certain version and am unable to proceed safely. The security and bug fixes I
keep seeing hit the stable version are all now no longer available to me, which
sucks. Can anybody suggest how I can trace this issue? During one of the phones
conference calls the quality was really horrible, so I started a constant ping
on the phone to see if there were jumps in latency or packet loss, as their
very sensitive to this, and I didn’t see any. <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>The only other thing I can think of
is bad phones? One sales guy had continuous phone quality issues since the
upgrade, so I traded my phone for his, switched the config files. And I made
his mine. And when I started placing calls, I started having quality issues in
which I didn’t have any before. So I thought the phone must be defective.
So then I grabbed another phone, a Cisco 7940 and made it mine, and the quality
is better, but I still here the occasional robotic sound when I place calls,
and this is a completely different phone. I’m thinking I just
didn’t notice the problems as severely as others have. There’s also
4 or 5 other employees (about 20 of us in total) reporting quality issues, I
don’t think it’s possible for that many phones to fail when
they’ve been doing good for so long. <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Any help or advice would be helpful.
However, a couple of my friends companies run asterisk and I’ve already
seen the “I use CVS Version so and so (newer than mine) and I don’t
have any problems, etc. etc.” lines, so I know that for most it must
work, but I’m one of the ones that it does not work for, and I’d
really be interested in finding out why. I’ve pretty much eliminated the
network possibility. They’re all local, we have 4 physical segments each
with 2 subnets, 1 for the computer and 1 for the phones, the subnets are all
linked by a Linux firewall with multiple interfaces. This firewall is set to
give the VOIP Subnets full access to one another, and has never interfered with
the phones ability to communicate with the Asterisk server before. <o:p></o:p></span></font></p>
</div>
</body>
</html>