Comments Inline.<br><br><div><span class="gmail_quote">On 7/29/06, <b class="gmail_sendername">Craig Lawrence</b> <<a href="mailto:craig@mytel.net.au">craig@mytel.net.au</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;">
<div>
<div>
<div><span><font color="#0000ff" face="Arial" size="2">Hi</font></span></div></div><div><span class="q">
<div><span><font color="#0000ff" face="Arial" size="2"></font></span> </div>
<div><span><While Enswitch sounds like a a nice
solution, I don't believe it's for our shop.></span></div>
<div><span><font color="#0000ff" face="Arial" size="2"></font></span> </div></span></div><div>
<div><span><font color="#0000ff" face="Arial" size="2">Which
part of Enswitch doesn't do what you have described? I'd like to know as we've
been looking at Enswitch.</font></span></div></div></div></blockquote><div><br>I prefer to develop the solution inhouse without depending on a solution provided by another vendor. To me, this would take away from the openness of the platform. If I develop an application and put it in the core of my network, I want to understand how it works, and what it is capable of.
<br> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div><div><span class="q"><div><span><I really would like to develop this
solution internally.></span></div>
<div><font color="#0000ff" face="Arial" size="2"></font> </div></span></div><div>
<div><span><font color="#0000ff" face="Arial" size="2">So,
are you looking for a consultant to do most of the work for
you?</font></span></div></div></div></blockquote><div><br>Not looking for a consultant, I was writing the list to get an idea of what others are doing. It's an attempt learn and better understand how I can benefit from this application.
<br><br><br></div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div><div><div><span><font color="#0000ff" face="Arial" size="2">Regards
</font></span></div>
<div><font face="Tahoma"><font size="2"><span><font color="#0000ff" face="Arial"> </font></span></font></font></div>
<div><font face="Tahoma"><font size="2"></font></font></div><font face="Tahoma"><font size="2"></font></font><div><span class="q"><span><font face="Tahoma"><font size="2"> </font></font></span><font face="Tahoma"><font size="2">
-----Original Message-----<br><b>From:</b>
<a href="mailto:asterisk-biz-bounces@lists.digium.com" title="mailto:asterisk-biz-bounces@lists.digium.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">asterisk-biz-bounces@lists.digium.com</a>
[mailto:<a href="mailto:asterisk-biz-bounces@lists.digium.com" title="mailto:asterisk-biz-bounces@lists.digium.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">asterisk-biz-bounces@lists.digium.com
</a>] <b>On Behalf Of </b>Christopher
Aloi<br></font></font></span></div><div><span class="e" id="q_10cbc881a0968610_6"><font face="Tahoma"><font size="2"><b>Sent:</b> Sunday, 30 July 2006 3:28 AM<br><b>To:</b>
<a href="mailto:asterisk-biz@lists.digium.com" title="mailto:asterisk-biz@lists.digium.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">asterisk-biz@lists.digium.com</a><br><b>Subject:</b> RE: [asterisk-biz] Looking for
carrier grade redundant solution<br><br></font></font></span></div><div></div>
<blockquote dir="ltr" style="margin-right: 0px;"></blockquote></div><div><span class="e" id="q_10cbc881a0968610_8"><span class="gmail_quote"><br></span>
<div>Thanks for the informative replies.<br><br>While Enswitch sounds like a a
nice solution, I don't believe it's for our shop. I really would like to
develop this solution internally. <br><br>My thoughts thus far are pointing
towards a scalable, redundant solution based on stock hardware. <br><br>I am
thinking of running a matched server pair (1 or 2U) as the application servers
(both running a matched Asterisk build) most likely on RHL. The servers
will contain redundant hardware (power supplies etc...) <br><br>The
application servers will be backed up by a matched pair of MySQL servers which
will use MySQL replication between each other and will use a floating IP; a
heartbeat will beat between the pair and nominate one a master should another
fail. <br><br>The disk storage will be local or offloaded to an existing
netApp filer.<br><br>From the reading I've done, running SER as a proxy to the
two application servers should serve it's purpose well, providing load
balancing and monitoring of the application server behind it (should one
Asterisk box return a 3XX-5XX I would then route advance to the second
application server and take the first offline. <br><br>Question - Is running
SER by best bet here? Would I be better off running a heartbeat between the
two app servers?<br><br>I am not too worried about SIP
registration/expiration's of the SIP users or peers:<br>1) Most of the call
center traffic will be terminated out another platform; the calls are being
sent to a DID (not a SIP URL). <br>2) My SIP peers are all within the trusted
network core and will not need to maintain status of each other.<br><br>Here's
where it gets tricky:<br><br>As agents login to a queue or become 'available'
Asterisk is maintaining their state; I believe an agents state is maintained
across an Asterisk reload. Could an agents state be maintained should
the second app server take over for the first? <br><br>Anyone attending
ClueCon next week??<br><br>Thanks,<br><br>_Chris_</div>
<div><span><br><br><br><br><br><br><br>
<div><span class="gmail_quote">On 7/28/06, <b class="gmail_sendername">Douglas
Garstang</b> <<a title="mailto:dgarstang@oneeighty.com (mailto:dgarstang@oneeighty.com)" href="mailto:dgarstang@oneeighty.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
dgarstang@oneeighty.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;">
<div>
<div bgcolor="#ffffff">
<div><span><font color="#0000ff" face="Arial" size="2">What about sip registration
replication?</font></span></div>
<div><span><font color="#0000ff" face="Arial" size="2">
<div><span><font color="#0000ff" face="Arial" size="2">What about SIP subscription
replication?</font></span></div></font></span></div>
<div><span><font color="#0000ff" face="Arial" size="2">What about BLF
replication?</font></span></div>
<div><span><font color="#0000ff" face="Arial" size="2">What about using DUNDi to
replicate applications for redundancy?</font></span></div>
<div><span><font color="#0000ff" face="Arial" size="2">How would you handle
different phones ability to failover if they don't do it so
well?</font></span></div>
<div><span><font color="#0000ff" face="Arial" size="2">How would handle the fact
that the config files have a hard coded database IP?</font></span></div>
<div><span><font color="#0000ff" face="Arial" size="2"></font></span> </div>
<div><span><font color="#0000ff" face="Arial" size="2">And so on...
</font></span></div>
<div><span><font color="#0000ff" face="Arial" size="2"></font></span> </div>
<div><span><font color="#0000ff" face="Arial" size="2">I don't think anyone has a
great solution to date.</font></span></div>
<div><span><font color="#0000ff" face="Arial" size="2"></font></span> </div>
<blockquote dir="ltr" style="border-left: 2px solid rgb(0, 0, 255); padding-left: 5px; margin-left: 5px; margin-right: 0px;">
<div dir="ltr" align="left"><font face="Tahoma" size="2"></font></div><font face="Tahoma" size="2"></font>
<div><span><font face="Tahoma" size="2">-----Original
Message-----<br><b>From:</b> Stephen Wingfield [mailto:<a title="mailto:steve@bicom.us (mailto:steve@bicom.us) (mailto:steve@bicom.us)" href="mailto:steve@bicom.us" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
steve@bicom.us</a>]<br><b>Sent:</b> Friday, July 28, 2006
4:14 PM<br><b>To:</b> Asterisk Users Mailing List - Non-Commercial
Discussion<br></font></span></div>
<div><span><font face="Tahoma" size="2"><b>Subject:</b> Re: [asterisk-users]
Looking for carrier grade redundant solution<br><br></font></span></div>
<div></div></blockquote></div>
<div><span>
<div><font face="Arial" size="2">Chris,</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">Heartbeat failover will usually be your best
mixed approach.</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">As always there is a cost benefit to be
considered.</font></div>
<div><font face="Arial" size="2">Where the call absolutely has to stay up then
Fault-Tolerant software and hardware is the only option that works with
Asterisk to date.</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">If however you wish to keep costs to a mimimum
then possibly an onsite / hosted model where the back up is available
remotely. This model depends on set up however.</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">In all cases I would suggest you take a peruse
of PBXware : <a title="http://www.bicomsystems.com/products/online_demo/ (http://www.bicomsystems.com/products/online_demo/) (http://www.bicomsystems.com/products/online_demo/)" href="http://www.bicomsystems.com/products/online_demo/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
http://www.bicomsystems.com/products/online_demo/
</a> which is our SMB Edition. We will next week launch our Call Center
Edition that is packed with features and functions to assist the running of
a dedicated to running a Call Center efficiently.</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">Feel free to contact me offline steve {at]
bicomsystems {dot] com and can make more precise suggestions according to
requirement.</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">Regards</font></div>
<div><font face="Arial" size="2">Steve</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2"></font> </div>
<blockquote style="border-left: 2px solid rgb(0, 0, 0); padding-right: 0px; padding-left: 5px; margin-left: 5px; margin-right: 0px;">
<div style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none;">----- Original
Message ----- </div>
<div style="background: rgb(228, 228, 228) none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial; font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none;">
<b>From:</b>
<a title="chris.aloi@gmail.com (mailto:chris.aloi@gmail.com) (mailto:chris.aloi@gmail.com) (mailto:chris.aloi@gmail.com)" href="mailto:chris.aloi@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
Christopher Aloi</a>
</div>
<div style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none;"><b>To:</b> <a title="asterisk-users@lists.digium.com (mailto:asterisk-users@lists.digium.com) (mailto:asterisk-users@lists.digium.com) (mailto:asterisk-users@lists.digium.com)" href="mailto:asterisk-users@lists.digium.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
Asterisk Users
Mailing List - Non-Commercial Discussion</a> ; <a title="asterisk-biz@lists.digium.com (mailto:asterisk-biz@lists.digium.com) (mailto:asterisk-biz@lists.digium.com) (mailto:asterisk-biz@lists.digium.com)" href="mailto:asterisk-biz@lists.digium.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
asterisk-biz@lists.digium.com</a> </div>
<div style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none;"><b>Sent:</b> Friday,
July 28, 2006 3:44 AM</div>
<div style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none;"><b>Subject:</b>
[asterisk-users] Looking for carrier grade redundant solution</div>
<div><br></div>Hello List -<br><br>We are looking add Asterisk to the core
of our voice/data network. Our first application will provide a
hosted call center application for a number of tenants (customers) who
will have between 5-20 agents (seats) answering ingress calls. The
calls will ingress and egress the Asterisk server SIP (all TDM is handled
by Sonus switches). <br><br>My goal is to design a redundant solution
using a multiple Asterisk servers with an NFS mounted
filesystem.<br><br>I've done some reading regarding Asterisk redundany,
and so far it seems the best approach is running redundant hardware (power
supplies etc), matching servers (with a heart beat ping between them) and
a NFS filer for storage (hot swapable) connected to each box via gigE.
<br><br>Am I on the right track? Any other suggestions or resources
I might have missed regarding developing a redundant
solution?<br><br>Thanks for your time,<br><br>_Chris_<br>
<p></p>
<hr>
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