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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Lee,<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 managed Asterisk site implementations
(with sip phones) of up to 750 users- once the systems were tweaked & stabilized,
Asterisk performed very reliably for us. <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'>For large sites (200+ users), I use dual
Xeon 3ghz with 1mb cache & 2GB memory. I have worked with brand-name
servers (Dell, HP) and generic servers- generic servers always seem to work
best as there are less opportunities for interrupt issues with Zaptel cards.<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'>For smaller sites (50 or less) there are
two options: use less powerful servers, or solid-state appliances (no fans, CF
memory). The solid-state option is most preferable, but you may find it
difficult to find a vendor who can provide you onsite support.<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'>For very small sites (10 or less), and
home workers, it would probably best to not place a server onsite (where it is not
necessary to have local PSTN connectivity). If you don’t need the
advanced features of a sip/office phone, I would strongly recommend you try the
IAXY, or one of the other IAX devices.<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'>It will probably be necessary to upgrade
the ADSL lines to full SDSL, and upgrade to at least 20:1 or 10:1. Make
sure that the onsite routers are able to manage IP prioritization for SIP or
IAX.<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'>You are not crazy to try this, but you are
definitely taking a more risky path (you won’t get fired for buying IBM).
You can be successful as long as you carefully manage the project carefully,
and thoroughly review your potential risks. If you succeed, you can save
your company a lot of capital while providing them with a very flexible platform.<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'>-GSR<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'><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>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> asterisk-biz-bounces@lists.digium.com
[mailto:asterisk-biz-bounces@lists.digium.com] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Lee Mason<br>
<b><span style='font-weight:bold'>Sent:</span></b> April 20, 2005 12:59 PM<br>
<b><span style='font-weight:bold'>To:</span></b>
'asterisk-biz@lists.digium.com'<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Asterisk-biz] Largest
Asterisk Implementation</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>This is my first post to this list and I hope that I am
targetting it at the correct one so here goes:</span></font><o:p></o:p></p>
</div>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am just about the embark on a technology pilot of
Asterisk. The structure of the network is that we have one main office with a
100Mb pipe to an ISP who hosts various systems in a central data centre. They
also provide us with a private IPVPN network to about 350 sites. The links to
these sites are 512Kb 50:1 ADSL at present. The purpose of the pilot at present
is just to prove the technology and decide what we need to do with our
infrastructure to support VoIP. I have a couple of questions.</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>1. What is the largest Asterisk deployment to date? If the
pilot is successful we are looking at about 100-150 users in a Head Office and
about 500-600 users on the remote sites, plus about 50 other mobile users
coming in across the internet.</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>2. An I crazy even to consider this?</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>3. Has anyone got any experience of doing this sort of thing
and any experiences they can share with me?</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am sure that there are many other questions, but these are
a start.</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Many thanks,</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Lee Mason</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p align=center style='text-align:center'><font size=5 color=red
face="Times New Roman"><span style='font-size:18.0pt;color:red;background:white'>WOW!</span></font><o:p></o:p></p>
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<p align=center style='text-align:center'><font size=3 face="Times New Roman"><span
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<p align=center style='text-align:center'><font size=4 face="Times New Roman"><span
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<p align=center style='text-align:center'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
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