<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Verdana; font-size: 10pt; color: #000000'>Exactly. Oh, something else you'll find out eventually, so in the interest of complete disclosure....you can have a maximum of three servers per intercluster trunk. So if your cluster has 6 servers, you will actually need two intercluster trunks.<br><br>If you have 3 clusters, each with 6 servers, for full redundancy, you will need 12 intercluster trunks.<br><br>A gatekeeper begins to make sense fairly quickly. ;)<br><br><br>---<br>Lelio Fulgenzi, B.A.<br>Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1<br>(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)<br>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br>"Bad grammar makes me [sic]" - Tshirt<br><br><br>----- Original Message -----<br>From: "Micah Bennett" <mbennett@als-xtn.com><br>To: "Lelio Fulgenzi" <lelio@uoguelph.ca><br>Cc: cisco-voip@puck.nether.net<br>Sent: Wednesday, November 19, 2008 11:35:23 AM GMT -05:00 US/Canada Eastern<br>Subject: RE: [cisco-voip] Connecting multiple clusters together<br><br>
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<title>Connecting multiple clusters together</title>
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<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;">Thanks for the doc. Ill take a look at it. </span></font></p>
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<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;">Is the reason for 6 ICTs because I will
have an incoming and outgoing between each location. Basically an IN and OUT
on each side of the triangle.</span></font></p>
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<p><b><font size="2" color="navy" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy; font-weight: bold;">Micah Bennett</span></font></b><font color="navy"><span style="color: navy;"> <br>
</span></font><font size="2" color="navy" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;">Telecommunications Admin</span></font><font color="navy"><span style="color: navy;"> <br>
</span></font><b><font size="2" color="maroon" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: maroon; font-weight: bold;">Automated License
Systems</span></font></b><font color="navy"><span style="color: navy;"> <br>
<br>
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<p class="MsoNormal"><b><font size="2" face="Tahoma"><span style="font-size: 10pt; font-family: Tahoma; font-weight: bold;">From:</span></font></b><font size="2" face="Tahoma"><span style="font-size: 10pt; font-family: Tahoma;"> Lelio Fulgenzi
[mailto:lelio@uoguelph.ca] <br>
<b><span style="font-weight: bold;">Sent:</span></b> Wednesday, November 19, 2008
10:30 AM<br>
<b><span style="font-weight: bold;">To:</span></b> Micah Bennett<br>
<b><span style="font-weight: bold;">Cc:</span></b> cisco-voip@puck.nether.net<br>
<b><span style="font-weight: bold;">Subject:</span></b> Re: [cisco-voip]
Connecting multiple clusters together</span></font></p>
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<p class="MsoNormal"><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;">You can connect
clusters together via PSTN gateway, e.g. T1s or via IP, e.g. intercluster
trunk.<br>
<br>
I would investigate an intercluster trunk. Very easy to setup and you add it to
a route group. If you have more than two clusters, you can still use an
intercluster trunk, but then you have 6 trunks instead of two, basically fully
meshed. Still manageable, but more than 3 you should consider a gatekeeper.<br>
<br>
This page should help you out:<br>
<br>
http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a0080094729.shtml<br>
<br>
<br>
---<br>
Lelio Fulgenzi, B.A.<br>
Senior Analyst (CCS) * University of Guelph * Guelph,
Ontario N1G 2W1<br>
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)<br>
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br>
"Bad grammar makes me [sic]" - Tshirt<br>
<br>
<br>
----- Original Message -----<br>
From: "Micah Bennett" <mbennett@als-xtn.com><br>
To: cisco-voip@puck.nether.net<br>
Sent: Wednesday, November 19, 2008 10:05:58 AM GMT -05:00 US/Canada Eastern<br>
Subject: [cisco-voip] Connecting multiple clusters together<br>
<br>
<br>
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<p><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">Are there any documents or can anyone comment on
what is needed and how you go about connecting multiple call manager clusters
together. </span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"></span></font></p>
<p><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">In the next few weeks and months I expect to be
connecting to our new parent company. I believe they are on CCM
3.x. We are on CCM 4.2(3).</span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"></span></font></p>
<p><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">They are using IPCC 3.x and we are using IPCC
4.x. I know that they</span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"> </span></font><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">have</span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"> </span></font><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">two offices using CCM. I don’t know if its one cluster or
two clusters. I believe it is just one. I don’t know of any plans
or need to integrate the IPCC portions at this time, but I do believe we want
to establish office to office extension dialing as soon as possible. </span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"></span></font></p>
<p><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">Here are some of the things I think I
know. </span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"></span></font></p>
<p><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">1. </span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"> </span></font><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">We are going to need some
type of</span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"> </span></font><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">connection to them. I assume this would be a T1 at
minimum. If it is one cluster, we should only need one to the main
location. </span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"> </span></font><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">If there are two clusters we will need a connection to both.
Our network is using Sprints MPLS cloud. We should be able to drop
connections from those two new offices directly into the</span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"> </span></font><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">MPLS</span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"> </span></font><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">cloud that we are
already connected to. </span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"></span></font></p>
<p><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;"> </span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"></span></font></p>
<p><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">2. </span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"> </span></font><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">Traffic between the
locations will use G729 to get the best use out of the smallest
connection. We do this between our existing two locations.</span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"></span></font></p>
<p><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">3. </span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"> </span></font><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">If they are using</span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"> </span></font><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">extension ranges that
conflict with our existing ranges, each office will need to do some type of
translation to avoid someone having to change extension ranges. For
example if they have an ext 2352 and we have an ext 2352, we will need to
assign a leading digit to each office. I might dial 6(2352) to get to
them and they would dial (7)2352 to get to</span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"> </span></font><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">me.</span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"></span></font></p>
<p><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">4. </span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"> </span></font><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">Instead of routing calls
to those offices extensions out to the PSTN, I would route them across the connection
to the other offices and they would have routing set up to accept the digits I
sent, and convert them back to the proper extension for routing the call to the
correct location.</span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"></span></font></p>
<p><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">Am I on track so far, or is this totally wrong?</span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"></span></font></p>
<p><font size="2" color="black" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: black;">Thanks in advance.</span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"></span></font></p>
<p><a name=""><b><font size="2" color="navy" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy; font-weight: bold;">Micah Bennett</span></font></b></a><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"></span></font></p>
<p><font size="2" color="navy" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;">Telecommunications Admin</span></font><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"></span></font></p>
<p><b><font size="2" color="maroon" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: maroon; font-weight: bold;">Automated License Systems</span></font></b><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"></span></font></p>
<p class="MsoNormal"><font size="2" color="black" face="Verdana"><span style="font-size: 10pt; font-family: Verdana; color: black;"><br>
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