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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I have helped to design, architect and deploy multiple customers
with SIP, including SIP trunks carrying contact center calls and also business
user calls. I helped to build out the initial infrastructure of a global
medical device firm that almost has all of their US remote offices –
literally 100s – migrated onto their centralized SIP trunks. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Are there interoperability issues? Yes, as each vendor can
speak a slightly different dialect. However, with the onset of some very
nice Border Gateways – it is making this a non-issue. However, as Matthew
states below – you need to work with someone who knows what they are
doing.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>For instance, ROI can be a grey area. Many times, it is
simply a wash and at other times can save a tremendous amount. Like the
example above, each of the remote sites had a least a PRI. However, many
of the offices hardly used 12 b-channels. By centralizing, they are
seeing a very nice savings and they get:<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-size:11.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Centralized dial plan management<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-size:11.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Centralized DID control and management<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-size:11.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>On-the-fly call volume adjustment – it is now bandwidth
not copper in the ground<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-size:11.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Economy of scale<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><a
href="http://www.callcentertimes.com/LatestNews/tabid/59/ctl/NewsArticle/mid/407/CategoryID/1/NewsID/173/Default.aspx">http://www.callcentertimes.com/LatestNews/tabid/59/ctl/NewsArticle/mid/407/CategoryID/1/NewsID/173/Default.aspx</a>
<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Cheers,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Bob <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Solutions Architect<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Customer Interactive Solutions<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Dimension Data<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<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-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] <b>On
Behalf Of </b>Matthew Loraditch<br>
<b>Sent:</b> Tuesday, February 08, 2011 2:29 PM<br>
<b>To:</b> David Eco; matthew@ciscovoiceguru.com; notariannil1@scranton.edu<br>
<b>Cc:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> Re: [cisco-voip] Verizon SIP vs. PRI?<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>The thing I would say is it all depends on your level of comfort
with the Carrier and with SIP. I generally don’t have a problem with the
quality of the service when it works, the problem has been troubleshooting and
making it work in the first place. I understand how to debug and troubleshoot a
T-1 or PRI and can set one up H.323 or MGCP no problem. SIP just doesn’t
process for me, Everybody says it’s simple, plain text and all that but I
don’t get it. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>My point, If you are going with it make sure you or someone you
have understands it.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>If you have a smaller install one thing you can do is have the
provider put in an IAD and hand off as PRI. Make them responsible and make your
side something you understand. Obviously in a large campus environment that may
not be feasible and defeats some of the consolidation benefits but in a smaller
setup it can make life much easier.<o:p></o:p></span></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:black'>Matthew Loraditch, CCVP, CCNA, CCDA</span></b><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:black'><br>
1965 Greenspring Drive<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:black'>Timonium, MD 21093 <br>
<a href="mailto:support@heliontechnologies.com"><span style='color:black'>support@heliontechnologies.com</span></a><br>
(p) (410) 252-8830<br>
(F) (443) 541-1593<br>
<br>
Visit us at <a href="http://www.heliontechnologies.com/"><span
style='color:black'>www.heliontechnologies.com</span></a> <br>
Support Issue? Email <a href="mailto:support@heliontechnologies.com"><span
style='color:black'>support@heliontechnologies.com</span></a> for fast
assistance!</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<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-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] <b>On
Behalf Of </b>David Eco<br>
<b>Sent:</b> Tuesday, February 08, 2011 2:47 PM<br>
<b>To:</b> matthew@ciscovoiceguru.com; notariannil1@scranton.edu<br>
<b>Cc:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> Re: [cisco-voip] Verizon SIP vs. PRI?<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>with
SIP, you may get more capacity of the channel. But in our case,
we have to setup IPSEC VPN with Verizon to utilize their SIP Trunk.
Network has to be reliable.<br>
<br>
David<br>
<br>
<br>
<br>
<br>
> From: <a href="mailto:matthew@ciscovoiceguru.com">matthew@ciscovoiceguru.com</a><br>
> Date: Tue, 8 Feb 2011 13:43:34 -0600<br>
> To: <a href="mailto:notariannil1@scranton.edu">notariannil1@scranton.edu</a><br>
> CC: <a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
> Subject: Re: [cisco-voip] Verizon SIP vs. PRI?<br>
> <br>
> One of my biggest questions right now regarding SIP trunks has been data
circuit issues and usability in SRST mode. If your branch office loses it's
network connection, will your SIP trunk go down too? If so, then you're up the
creek without a paddle.<br>
> <br>
> Sent from my iPhone<br>
> <br>
> On Feb 8, 2011, at 1:13 PM, Lisa Notarianni <<a
href="mailto:notariannil1@scranton.edu">notariannil1@scranton.edu</a>>
wrote:<br>
> <br>
> > We currently utilize PRI trunks as fail over and backup. They connect
to our 6509's.<br>
> > <br>
> > Can anyone share their thoughts on SIP vs. PRI services. <br>
> > <br>
> > Thanks,<br>
> > <br>
> > Lisa<br>
> > -- <br>
> > <LNsignature.jpg><br>
> > _______________________________________________<br>
> > cisco-voip mailing list<br>
> > <a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
> > <a href="https://puck.nether.net/mailman/listinfo/cisco-voip">https://puck.nether.net/mailman/listinfo/cisco-voip</a><br>
> <br>
> _______________________________________________<br>
> cisco-voip mailing list<br>
> <a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
> <a href="https://puck.nether.net/mailman/listinfo/cisco-voip">https://puck.nether.net/mailman/listinfo/cisco-voip</a><o:p></o:p></span></p>
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