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<DIV><SPAN class=408265722-29072006><FONT face=Arial color=#0000ff
size=2>Hi</FONT></SPAN></DIV>
<DIV><SPAN class=408265722-29072006><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=408265722-29072006><While Enswitch sounds like a a nice
solution, I don't believe it's for our shop.></SPAN></DIV>
<DIV><SPAN class=408265722-29072006><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=408265722-29072006><FONT face=Arial color=#0000ff 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><SPAN class=408265722-29072006><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=408265722-29072006><I really would like to develop this
solution internally.></SPAN></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV><SPAN class=408265722-29072006><FONT face=Arial color=#0000ff size=2>So,
are you looking for a consultant to do most of the work for
you?</FONT></SPAN></DIV>
<DIV><SPAN class=408265722-29072006><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=408265722-29072006><FONT face=Arial color=#0000ff
size=2>Regards</FONT></SPAN></DIV>
<DIV><FONT face=Tahoma><FONT size=2><SPAN class=408265722-29072006><FONT
face=Arial color=#0000ff> </FONT></SPAN></FONT></FONT></DIV>
<DIV><FONT face=Tahoma><FONT size=2><SPAN
class=408265722-29072006> </SPAN>-----Original Message-----<BR><B>From:</B>
asterisk-biz-bounces@lists.digium.com
[mailto:asterisk-biz-bounces@lists.digium.com] <B>On Behalf Of </B>Christopher
Aloi<BR><B>Sent:</B> Sunday, 30 July 2006 3:28 AM<BR><B>To:</B>
asterisk-biz@lists.digium.com<BR><B>Subject:</B> RE: [asterisk-biz] Looking for
carrier grade redundant solution<BR><BR></DIV></FONT></FONT>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px"><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 class=e id=q_10cb8809203676e4_1><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
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:dgarstang@oneeighty.com" target=_blank>
dgarstang@oneeighty.com</A>> wrote:</SPAN>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">
<DIV>
<DIV bgcolor="#ffffff">
<DIV><SPAN><FONT face=Arial color=#0000ff size=2>What about sip registration
replication?</FONT></SPAN></DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff size=2>
<DIV><SPAN><FONT face=Arial color=#0000ff size=2>What about SIP subscription
replication?</FONT></SPAN></DIV></FONT></SPAN></DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff size=2>What about BLF
replication?</FONT></SPAN></DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff size=2>What about using DUNDi to
replicate applications for redundancy?</FONT></SPAN></DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff 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 face=Arial color=#0000ff size=2>How would handle the fact
that the config files have a hard coded database IP?</FONT></SPAN></DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff size=2>And so on...
</FONT></SPAN></DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff size=2>I don't think anyone has a
great solution to date.</FONT></SPAN></DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: rgb(0,0,255) 2px solid; 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)"
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:steve@bicom.us"
target=_blank>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/)"
onclick="return top.js.OpenExtLink(window,event,this)"
href="http://www.bicomsystems.com/products/online_demo/"
target=_blank>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="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: rgb(0,0,0) 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial; font-size-adjust: none">----- Original
Message ----- </DIV>
<DIV
style="BACKGROUND: rgb(228,228,228) 0% 50%; FONT: 10pt arial; font-size-adjust: none; moz-background-clip: -moz-initial; moz-background-origin: -moz-initial; moz-background-inline-policy: -moz-initial"><B>From:</B>
<A
title="chris.aloi@gmail.com (mailto:chris.aloi@gmail.com) (mailto:chris.aloi@gmail.com)"
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:chris.aloi@gmail.com" target=_blank>Christopher Aloi</A>
</DIV>
<DIV style="FONT: 10pt arial; 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)"
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:asterisk-users@lists.digium.com" target=_blank>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)"
onclick="return top.js.OpenExtLink(window,event,this)"
href="mailto:asterisk-biz@lists.digium.com"
target=_blank>asterisk-biz@lists.digium.com</A> </DIV>
<DIV style="FONT: 10pt arial; font-size-adjust: none"><B>Sent:</B> Friday,
July 28, 2006 3:44 AM</DIV>
<DIV style="FONT: 10pt arial; 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>
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