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<DIV><SPAN class=765510217-02102006><FONT face=Arial color=#0000ff size=2>If
reliability is the issue, then use the PRI *first* then failover to
VoIP.</FONT></SPAN></DIV>
<DIV><SPAN class=765510217-02102006><FONT face=Arial color=#0000ff size=2>If
cost savings are the issue, use VoIP then have a 2nd VoIP provider to fail over
to, and no PRI.</FONT></SPAN></DIV>
<DIV><SPAN class=765510217-02102006><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=765510217-02102006><FONT face=Arial color=#0000ff size=2>In
either scenario, inbound call routing is thorny, some guys that provide both PRI
and VoIP can route calls automatically on failover. </FONT></SPAN></DIV>
<DIV><SPAN class=765510217-02102006><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=765510217-02102006><FONT face=Arial color=#0000ff
size=2>However, you *will* get 5 9's in any kind of PRI scenario, that is what
it is designed to do. If your voice downtime is measured in hundreds or
thousands of dollars a minute, use a PRI. </FONT></SPAN></DIV>
<DIV><SPAN class=765510217-02102006><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=765510217-02102006><FONT face=Arial color=#0000ff size=2>ROI on
Asterisk depends on how you look at it. I enjoy the fact that licensing costs
are zero and you can make it do way cool stuff, and you have access to a huge
3rd party market. But I would get my ass canned if I went to VoIP only and it
went down. I do have a hybrid install with a SIP 12 channel connection and 2
BRI's for failover, and the cost savings are 30% over a frac PRI. You don't
nessisarily have to do a 1-1 backup of your voice channels, all you need is
enough to support 80% or so of your estimated average concurrent use and
chances are your users will never know the difference in a failover situation
unless it's another 9/11 and everyone is calling out. In that case, you can say,
hey, it's another 9/11, no kidding the phones didn't work. </FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> stan ford
[mailto:stanford510@yahoo.com]<BR><B>Sent:</B> Monday, October 02, 2006 10:55
AM<BR><B>To:</B> asterisk-users@lists.digium.com<BR><B>Subject:</B>
[asterisk-users] t1 voip to failover pri<BR><BR></FONT></DIV>
<DIV>I'm confused with something, maybe someone can explain to me. </DIV>
<DIV> </DIV>
<DIV>if your currently on a pri and are considering moving over to VOIP,
that means you would have to purchase a t1 or fractional t1 for a your voip
connections. </DIV>
<DIV> </DIV>
<DIV>but then, voip connections aren't as reliable as PRI. so then you would
probbaly have to get a PRI failover. </DIV>
<DIV> </DIV>
<DIV>but then having a PRI failover means that you now have to pay 400 for a
T1, then another 400 for your PRI line. wouldn't have you have just defeated
the cause of savig money by now having to have a PRI on standby? now
costing you 800 a month? wouldn't it almost be the same price to stick with
the PRI only?</DIV>
<DIV> </DIV>
<DIV>is anyone out there, using a VOIP only with no failover?</DIV>
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