The<br><br><span style="font-weight: bold; font-size: 14px;">AudioCodes Mediant 2000 </span>with 16 Span E1/T1 is only 1U. <br><br>In the US it will handle 384 calls.<br><br>If you are in a high cost data center like equinix this may be the way to go.
<br><br><br><br><div><span class="gmail_quote">On 9/20/07, <b class="gmail_sendername">Josh Krueger</b> <<a href="mailto:lists@vasttelecom.com">lists@vasttelecom.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>On Sep 20, 2007, at 12:45 PM, Steve Totaro wrote:<br><br>> Mitul Limbani wrote:<br>>> Hi Chris,<br>>><br>>><br>>> Quoting Chris Bagnall <<a href="mailto:chris@minotaur.it">chris@minotaur.it
</a>>:<br>>><br>>>> Greetings list,<br>>>><br>>>> I've recently been approached by a traditional PSTN LCR provider who<br>>>> are trying to break into the VoIP market and set themselves up. They
<br>>>> have good contacts with some of the large carriers here in the UK<br>>>> who<br>>>> are happy to install interconnects into the datacentre in which they<br>>>> have rackspace.<br>
>>><br>>>> They're in a tricky position: they won't be generating anywhere near<br>>>> enough volume to justify one of the big Cisco gateways (or similar),<br>>>> but they will have sufficient volume to make PRI cards in asterisk
<br>>>> servers rather inefficient.<br>>>><br>>>> Initially the main carrier offered to install 16 E1s as a starting<br>>>> point for them, but:<br>>>> a) as their call volume increases, having lots of E1 ports and
<br>>>> cables<br>>>> seems incredibly inefficient compared to an E3 or TDMoE.<br>>>> b) I can't help but feel asterisk might not be the most appropriate<br>>>> solution for something of this scale
<br>>><br>>> I believe you can put up 16 E1s on to a single server and which<br>>> runs asterisk.<br>>> If you require any assistance on that front, do contact us.<br>>><br>>> Thanks & Regards,
<br>>> Mitul Limbani,<br>>> Founder & CEO,<br>>> Enterux Solutions,<br>>> The Enterprise Linux Company (TM),<br>>> <a href="http://www.enterux.com">www.enterux.com</a><br>><br>><br>
> Obviously you cannot put 16 E1s on a single server. And at least<br>> in the<br>> US, getting 16 T1s makes no sense. It costs just as much as a T3<br>> (28 T1s)<br>><br>> You can do it, I would inquire about an E3 (I suppose there has to be
<br>> such a thing). A T3 comes as two coaxial cables, one send, on receive<br>> and would attach to a MUX to break out your E1s.<br>><br>> Seven servers should do the trick.<br>><br>> Thanks,<br>> Steve
<br>><br><br>I agree fully.. To a point.<br><br>Heres the thing, Ive worked on a platform that had well over 30 T1s<br>across 10-15 servers for inbound. And another 10-15 T1s for outbound.<br>Outbound were muxed into a T3. Having the inbound as individual E1s
<br>makes much more sense especially when they may be dealing with<br>multiple carriers. 2-3 E1s from each carrier across the servers, etc<br>etc. This takes care of failover if a server dies. Now if its all one<br>carrier a demuxed E3 would be perfect.
<br><br>7 servers is right at the mark I would have recommended (media<br>gateways should be midrange 1u servers, gateways 1u or 2u with<br>redundant power supplies). 5 with a quad port E1 card in each and 2<br>to be SIP gateways and handle final CDR records, load balancing, etc.
<br>Will also need detailed logging on the first 5 servers as well. To<br>have this all work happily, you will probably need some custom code.<br><br>Asterisk is fine for handling this type of application. If you have<br>
any questions, feel free to contact me off list.<br><br>_______________________________________________<br><br>Sign up now for AstriCon 2007! September 25-28th. <a href="http://www.astricon.net/">http://www.astricon.net/
</a><br><br>--Bandwidth and Colocation Provided by <a href="http://www.api-digital.com--">http://www.api-digital.com--</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><br></blockquote></div><br>