<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=us-ascii">
<META content="MSHTML 6.00.2900.2668" name=GENERATOR>
<STYLE>@page Section1 {size: 8.5in 11.0in; margin: 1.0in 1.25in 1.0in 1.25in; }
P.MsoNormal {
FONT-SIZE: 12pt; MARGIN: 0in 0in 0pt; FONT-FAMILY: "Times New Roman"
}
LI.MsoNormal {
FONT-SIZE: 12pt; MARGIN: 0in 0in 0pt; FONT-FAMILY: "Times New Roman"
}
DIV.MsoNormal {
FONT-SIZE: 12pt; MARGIN: 0in 0in 0pt; FONT-FAMILY: "Times New Roman"
}
A:link {
COLOR: blue; TEXT-DECORATION: underline
}
SPAN.MsoHyperlink {
COLOR: blue; TEXT-DECORATION: underline
}
A:visited {
COLOR: purple; TEXT-DECORATION: underline
}
SPAN.MsoHyperlinkFollowed {
COLOR: purple; TEXT-DECORATION: underline
}
SPAN.EmailStyle17 {
COLOR: windowtext; FONT-FAMILY: Arial
}
DIV.Section1 {
page: Section1
}
</STYLE>
</HEAD>
<BODY lang=EN-US vLink=purple link=blue>
<DIV dir=ltr align=left><SPAN class=202590819-16082005><FONT face=Arial
size=2>From what I understand (From Sangoma's tech support) and having a IBM
x306 SCSI system with an A102u I believe that the system will scale up to 4xT1's
easily.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=202590819-16082005><FONT face=Arial
size=2>With a full T1 of traffic coming in and playing music on hold,
the CPU was at 7% with no transcoding.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=202590819-16082005><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=202590819-16082005></SPAN><FONT face=Arial><FONT
size=2>Sangoma <SPAN class=202590819-16082005>cards are supposed to place
less draw on the interrupts and offer some new direct writing to DMA in their
A104 cards. You may want to give them a call (Scott or Nenad are the two best
people to speak with). </SPAN></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2><SPAN
class=202590819-16082005></SPAN></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT size=2><SPAN class=202590819-16082005>From Sangoma
README.asterisk:</SPAN></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2><SPAN class=202590819-16082005><!--StartFragment --><STRONG><FONT
face="Times New Roman" size=3> </FONT>Voice data is channelized and grouped
into 8 byte chunks in HARDWARE. Each voice channel is
then DMAed directly into the ZAPTEL buffers. Thus there is ZERO copy
from HARDWARE to ZAPTEL, resulting in better performance and
scalability.</STRONG></SPAN></FONT></FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2><SPAN class=202590819-16082005></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=202590819-16082005>It sounds to me like
that would be once advantage over Digiums cards. They also have Hardware PRI
functions that are passed directly to libpri.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=202590819-16082005><A
href="http://sangoma.com/linux/README.asterisk">http://sangoma.com/linux/README.asterisk</A></SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><SPAN class=202590819-16082005></SPAN><FONT face=Arial><FONT size=2>H<SPAN
class=202590819-16082005>ope that helps.</SPAN></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2><SPAN
class=202590819-16082005></SPAN></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT size=2><SPAN
class=202590819-16082005>Chad</SPAN></FONT></FONT></DIV>
<DIV><BR></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] <B>On Behalf Of </B>Damon
Estep<BR><B>Sent:</B> August 16, 2005 12:33 PM<BR><B>To:</B>
asterisk-users@lists.digium.com<BR><B>Subject:</B> [Asterisk-Users] quad t1 / 1U
rack server combos<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">It is amazing to me at this point
that there is not an official Digium list of supported servers (including 1u
models!). Clearly the number 1 issue with the Digium PRI cards is the server
that they are used in.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">The new cards even go as far as
listing server that DO NOT work on the Digium site!</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">The wiki references are old and do
not have any testing parameters.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">C’mon guys! Certify a few current
model servers and be done with it.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Without that information I must
again ask the question;</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">What 1u server combos work with the
new quad pri cards UNDER LOAD (more than 75% channel use). Every user that buys
a Digium PRI card should not have to play hit or miss with 2 or 3 servers that
cost more than the card to get it to work.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Please Please Please publish
something useful to support the sale of PRI cards.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Damon</SPAN></FONT></P></DIV></BODY></HTML>