<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: verdana,helvetica,sans-serif; font-size: 10pt; color: #000000'>Thanks Eric.<br><br>Transcoders are another question I'm trying to clear up as well. I might spin that off into another thread after I read up some more.<br><br>It's good to know that if we don't need transcoding, that we won't need additional DSPs.<br><br><div><span name="x"></span>---<br>Lelio Fulgenzi, B.A.<br>Senior Analyst, Network Infrastructure<br>Computing and Communications Services (CCS)<br>University of Guelph<br><br>519‐824‐4120 Ext 56354<br>lelio@uoguelph.ca<br>www.uoguelph.ca/ccs<br>Room 037, Animal Science and Nutrition Building<br>Guelph, Ontario, N1G 2W1<span name="x"></span><br></div><br><hr id="zwchr"><div style="color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From: </b>"Eric Pedersen" <PedersenE@bennettjones.com><br><b>To: </b>"Lelio Fulgenzi" <lelio@uoguelph.ca>, "Brian Meade" <bmeade90@vt.edu><br><b>Cc: </b>"Cisco VOIP" <cisco-voip@puck.nether.net><br><b>Sent: </b>Tuesday, February 17, 2015 12:22:54 PM<br><b>Subject: </b>RE: [cisco-voip] trusted relay points<br><br>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I believe you can configure your router to be a software MTP with “codec pass-through” as long as you don’t need transcoding. Then you won’t need DSPs.</span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> cisco-voip [mailto:cisco-voip-bounces@puck.nether.net]
<b>On Behalf Of </b>Lelio Fulgenzi<br>
<b>Sent:</b> 17 February 2015 9:55 AM<br>
<b>To:</b> Brian Meade<br>
<b>Cc:</b> Cisco VOIP<br>
<b>Subject:</b> Re: [cisco-voip] trusted relay points</span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black"><br>
Thanks Brian.<br>
<br>
I'm guessing the only things I would have to do is ensure that I have enough MTP resources on the trusted device. I could use the DSP calculator for that.<br>
<br>
<br>
</span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black">---<br>
Lelio Fulgenzi, B.A.<br>
Senior Analyst, Network Infrastructure<br>
Computing and Communications Services (CCS)<br>
University of Guelph<br>
<br>
519</span><span style="font-size:10.0pt;font-family:"Cambria Math","serif";color:black">‐</span><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black">824</span><span style="font-size:10.0pt;font-family:"Cambria Math","serif";color:black">‐</span><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black">4120
Ext 56354</span><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black"><br>
<a href="mailto:lelio@uoguelph.ca" target="_blank">lelio@uoguelph.ca</a><br>
<a href="http://www.uoguelph.ca/ccs" target="_blank">www.uoguelph.ca/ccs</a><br>
Room 037, Animal Science and Nutrition Building<br>
Guelph, Ontario, N1G 2W1</span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-family:"Helvetica","sans-serif";color:black">From:
</span></b><span style="font-family:"Helvetica","sans-serif";color:black">"Brian Meade" <<a href="mailto:bmeade90@vt.edu" target="_blank">bmeade90@vt.edu</a>><br>
<b>To: </b>"Lelio Fulgenzi" <<a href="mailto:lelio@uoguelph.ca" target="_blank">lelio@uoguelph.ca</a>><br>
<b>Cc: </b>"Cisco VOIP" <<a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a>><br>
<b>Sent: </b>Tuesday, February 17, 2015 11:34:22 AM<br>
<b>Subject: </b>Re: [cisco-voip] trusted relay points</span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica","sans-serif";color:black">They're basically just MTPs you deem to be "trusted". A lot of people use them for switching between IPv4 and IPv6. Really not anything different than just forcing MTP Required
other than maybe just narrowing down the MTP list. Some people use the same setup for VPN phones/IP Communicators over VPN so VPN clients don't have to be able to talk directly to each other.</span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica","sans-serif";color:black">On Tue, Feb 17, 2015 at 11:28 AM, Lelio Fulgenzi <<a href="mailto:lelio@uoguelph.ca" target="_blank">lelio@uoguelph.ca</a>> wrote:</span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black"><br>
We had a security discussion with our account team, and one thing that was brought up was the concept/feature of trusted relay points.<br>
<br>
There's not much on the subject in the guides, other than saying some MTPs are trusted relay points.<br>
<br>
Our thought was, rather than opening up the voice VLANs to allow media from the data VLANs, we could simply set up the Jabber clients with "trusted relay points" enabled and modify the voice VLAN ACLs to allow access from these trusted relay points. We could
either use our PSTN gateways or deploy another set of 2900s for this purpose.<br>
<br>
This would also help us in the short term, I believe, by not having to enable "peer to peer" communications on our wiLAN.<br>
<br>
Any thoughts or pointers to some documents would be fantastic.<br>
<br>
Lelio<br>
<br>
</span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black">---<br>
Lelio Fulgenzi, B.A.<br>
Senior Analyst, Network Infrastructure<br>
Computing and Communications Services (CCS)<br>
University of Guelph<br>
<br>
<a href="tel:519%E2%80%90824%E2%80%904120%20Ext%2056354" target="_blank">519<span style="font-family:"Cambria Math","serif"">‐</span>824<span style="font-family:"Cambria Math","serif"">‐</span>4120 Ext 56354</a><br>
<a href="mailto:lelio@uoguelph.ca" target="_blank">lelio@uoguelph.ca</a><br>
<a href="http://www.uoguelph.ca/ccs" target="_blank">www.uoguelph.ca/ccs</a><br>
Room 037, Animal Science and Nutrition Building<br>
Guelph, Ontario, N1G 2W1</span></p>
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