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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Ahmed,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> I cannot comment on using a CUBE to handle media terminations as you are discussing, however I have significant experience with the ASA UC Proxy
functions. We are using ASA 5550’s in HA as a UC Proxy termination point in our production corporate network. The license is a little pricy, but as it sounds like you are in a reseller/provider platform the added security by enforcing sccp encryption could
be a selling point to balance out the cost. The setup process especially for a soft phone is quite easy for end users. Not going to lie, the initial UCM/ASA setup can be a little bit of a pain, but allows you to enforce encryption at a selectable strength
(aes family) on the calls. <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">Questions, feel free to let me know.<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">--Blake<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"><b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> cisco-voip [mailto:cisco-voip-bounces@puck.nether.net]
<b>On Behalf Of </b>Ed Leatherman<br>
<b>Sent:</b> Saturday, November 9, 2013 9:52 PM<br>
<b>To:</b> Ahmed -Y<br>
<b>Cc:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> Re: [cisco-voip] CUBE design consideration<o:p></o:p></span></p>
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<p class="MsoNormal">Ahmed,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I can't comment on Cube, but maybe another product to review, I think cisco's expressway product might do some similar things. <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><a href="http://www.cisco.com/en/US/prod/collateral/ps7060/ps11305/ps11315/ps11337/data_sheet_c78-697073.html">http://www.cisco.com/en/US/prod/collateral/ps7060/ps11305/ps11315/ps11337/data_sheet_c78-697073.html</a><o:p></o:p></p>
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<p class="MsoNormal">—<br>
Sent from <a href="https://www.dropbox.com/mailbox">Mailbox</a> for iPhone<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
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<p>On Sat, Nov 9, 2013 at 8:43 PM, Ahmed -Y <<a href="mailto:yhameed81@gmail.com" target="_blank">yhameed81@gmail.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Hi Guys,<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">I have few questions and really thankful if you answer them.<o:p></o:p></p>
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<p class="MsoNormal">Currently softphones from customers registered directly with shared UC infrastructure (cucm, unity, presence etc). Now we are planning to deploy some kinda gateway device and softphones from customer must register/terminate on it before
reach to UC infra. This gateway device must hide the internal network and protect any potential attacks. Any advice please.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">1) I read about cube. I provide topology hiding and protection but question is can softphones like jabber or movi be terminated on cube and then cube initiate separate call leg to cucm?<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">2) I understood cube hide topology using NAPT (nat), could there be any issues by enabling nat base hiding?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Regards<o:p></o:p></p>
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