Rob, as I mentioned before, here the main trunk is a T1 PRI on which this customer face this problem. Local phones are connected to the Asterisk server on their local network, and then calls go through the PRI. There is a VoIP trunk too only for long distance, and same problem happens there. So I was thinking its the network issue.
<br><br><div><span class="gmail_quote">On 6/1/07, <b class="gmail_sendername">Rob Schall</b> <<a href="mailto:rschall@callone.net">rschall@callone.net</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div bgcolor="#ffffff" text="#000000">
We have the same problem with our system. Unless you have a solid (not
just high speed) connection between the 2 parties, you're going to get
silence a few times during the call. We had set up a user on a business
comcast high-speed, thinking that would be more than enough. Turned out
though, with most high speed solutions, there is some limited packet
loss and its just to be expected. You internet browsers, etc, would
normally just re-request the packet and move on, but with a stream,
you're out of luck. The only real solution is to have a dedicated T1 or
mpls connection or something like that for perfect quality. We have
solid connections between our offices and haven't had a problem yet.<br>
<br>
Steve Hanselman wrote:
<blockquote type="cite"><div><span class="e" id="q_112e7788a60d87bd_1">
<div>
<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">You can use
tcpdump or ethereal (wireshark
now) to capture the stream and then see if there was loss during the
call, just
leave a capture going then get your users to mark out the time at which
they
encountered the silence, compare this to the server time (e.g. their
watch to
the server) to get a time difference, then figure out what time you
need to
look at in the trace.</span></font></p>
<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;"> </span></font></p>
<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;"> </span></font></p>
<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">Steve</span></font></p>
<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;"> </span></font></p>
<div>
<div style="text-align: center;" align="center"><font face="Times New Roman" size="3"><span style="font-size: 12pt;" lang="EN-US">
<hr align="center" size="2" width="100%"></span></font></div>
<p><b><font face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; font-weight: bold;" lang="EN-US">From:</span></font></b><font face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma;" lang="EN-US">
<a href="mailto:asterisk-users-bounces@lists.digium.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">asterisk-users-bounces@lists.digium.com</a>
[<a href="mailto:asterisk-users-bounces@lists.digium.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">mailto:asterisk-users-bounces@lists.digium.com</a>] <b><span style="font-weight: bold;">On Behalf Of
</span></b>Zeeshan Zakaria<br>
<b><span style="font-weight: bold;">Sent:</span></b> 01 June 2007
13:02<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> Re:
[asterisk-users]
Audio going blank for a few seconds andthencomes back. What could be
the
reason?</span></font></p>
</div>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;"> </span></font></p>
<p style="margin-bottom: 12pt;"><font face="Times New Roman" size="3"><span style="font-size: 12pt;">There
are some remote
extensions connected on this system, and calling long distance is
purely on
voip. These remote extensions also face the same thing, i.e. audio
going blank
for a few seconds, when dialing long distance. So in this case, no PRI
is
involved. Its either the server, or the network. Now I don't know how
to find
out what is it and why? </span></font></p>
<div>
<p><span><font face="Times New Roman" size="3"><span style="font-size: 12pt;">On
6/1/07, <b><span style="font-weight: bold;">Steve Hanselman</span></b>
<<a href="mailto:SteveH@brendata.co.uk" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">SteveH@brendata.co.uk</a>>
wrote:</span></font></span></p>
<div link="blue" vlink="purple">
<div>
<p><font color="navy" face="Arial" size="2"><span style="font-size: 100pt; font-family: Arial; color: navy;">I think
this is more related to the PRI, we've been seeing
this for a few weeks now, and our environment is bridged PRI-PRI on the
same
board.</span></font></p>
<p><font color="navy" face="Arial" size="2"><span style="font-size: 100pt; font-family: Arial; color: navy;"> </span></font></p>
<p><font color="navy" face="Arial" size="2"><span style="font-size: 100pt; font-family: Arial; color: navy;">Steve</span></font></p>
</div>
</div>
</div>
<p><font face="Times New Roman" size="3"><span style="font-size: 12pt;"> </span></font></p>
</div>
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</blockquote>
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