<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">I would recommend breaking apart your SIP switching from your voicemail, conferencing and other advanced apps in an install of that size. Asterisk Business Edition on a high-end 2970 or so could handle that many seats in one server, but would not scale to the customer's request.<div><br></div><div>Consider a three server design. 1 OpenSER SIP switch, 1 Asterisk Voicemail and Conferencing unit and 1 CDR aggregation, call recording and reporting platform.</div><div><br><div apple-content-edited="true"> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Helvetica Neue'; font-size: 11px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div><div><div><div>Bryan M. Johns</div><div>Shelton | Johns</div><div>FindMe: 678.229.1809</div><div>Fax: 678.303.3424</div><div>Support: <a href="mailto:support@sheltonjohns.com">support@sheltonjohns.com</a></div><div><a href="http://www.sheltonjohns.com">http://www.sheltonjohns.com</a></div></div></div></div></div></div></span> </div><br><div><div>On Sep 10, 2008, at 10:32 PM, Mike Hammett wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"> <div id="MailContainerBody" style="PADDING-RIGHT: 10px; PADDING-LEFT: 10px; PADDING-TOP: 15px" bgcolor="#ffffff" leftmargin="0" topmargin="0" canvastabstop="true" name="Compose message area"> <div><font face="Arial" size="2">I'm going to be working on a VoIP PBX RFP. The requestor is looking for approximately 550 handsets to start with and would like to be able to scale up to 10k handsets (I can't imagine how they'd be using 10k of them, but they ask). I'm guessing maybe 2x PRIs worth of traffic externally, couldn't be much more than that internally. Of course scalability here is desired if they want to know how to scale to 10k handsets.</font></div> <div><font face="Arial" size="2"></font> </div> <div><font face="Arial" size="2">I'm looking for suggestions on the PBX itself. I can take care of the handsets (I'm Polycom certified) and the PSTN.</font></div> <div><font face="Arial" size="2"></font> </div> <div> </div> <div><font face="Arial" size="2">----------<br>Mike Hammett<br>Intelligent Computing Solutions<br><a href="http://www.ics-il.com">http://www.ics-il.com</a></font></div> <div> </div> <div><font face="Arial" size="2"></font> </div></div> _______________________________________________<br>--Bandwidth and Colocation Provided by <a href="http://www.api-digital.com">http://www.api-digital.com</a>--<br><br>AstriCon 2008 - September 22 - 25 Phoenix, Arizona<br>Register Now: <a href="http://www.astricon.net">http://www.astricon.net</a><br><br>asterisk-biz mailing list<br>To UNSUBSCRIBE or update options visit:<br> <a href="http://lists.digium.com/mailman/listinfo/asterisk-biz">http://lists.digium.com/mailman/listinfo/asterisk-biz</a></blockquote></div><br></div></body></html>