<div>thanks for the responses</div> <div> </div> <div>a couple things, if you guys could clear up for me.</div> <div> </div> <div>A) If i have a bunch of sip ip phones, and if i were to fail to my PRI. I should still be able to use my ip phones right? i assume the signal will be changed by my T1 card? and the reverse i would assume is true for incoming calls.</div> <div> </div> <div>B) How about DID's, how would that be handled. is there a DID failover as well? I have my VOIP service with one company, if i had my PRI service with another. how would those DID's get failed to the other provider, if thats even possible at all in a timely manner.</div> <div> </div> <div>C) also are failover pri's generally cheaper that their active counterparts?</div> <div> </div> <div>thanks alot.<BR><BR><B><I>Shawn Kelley <shawn@sellersaide.com></I></B> wrote:</div> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT:
#1010ff 2px solid">Stan,<BR>I agree with the comment below, we switched from analog lines to a PRI and<BR>it's not always as reliable as some people think. We are in a somewhat rural<BR>location and we have outages regularly. 1-4 hour outages every few months<BR>are not uncommon for us. Outages of 60 seconds or so are even more common.<BR>I'm told this is because the T1 line is running somewhat noisy/dirty and<BR>after so many CRC errors the equipment is resetting.<BR><BR>Make sure you negotiate a good SLA so that you can get credit when it does<BR>go down!<BR><BR>You also have to be careful like mentioned below, if you get 2 PRI's, even<BR>from different CLECS, the will normally still come out of the same Central<BR>Office and travel side by side on the cable. So it's likely if 1 goes down<BR>then the other one will also. <BR><BR>Summary: It's a good idea to have a few analog lines since they can take a<BR>whole lot more abuse than the digital T1 can handle. (Static/Noise
doesn't<BR>make your call drop!)<BR><BR><BR><BR>-----Original Message-----<BR>From: Lacy Moore [mailto:lists-away@aspendoratechnologies.com] <BR>Sent: Friday, September 29, 2006 4:23 AM<BR>To: Asterisk Users Mailing List - Non-Commercial Discussion<BR>Subject: Re: [asterisk-users] pstn failback<BR><BR>-----BEGIN PGP SIGNED MESSAGE-----<BR>Hash: SHA1<BR><BR>stan ford wrote:<BR>> On fonalities web page, i see they offer pstn failback as a feature of<BR>their asterisk package. i've also heard before of failing back to a pri line<BR>if your t1 voip line fails. my question is. in order to have pstn or pri<BR>failback, dont you basically have to have all the equipment there on<BR>standby, a PRI line, TDM cards, PRI/T1 cards, a bunch of digital or analong<BR>phones. it just seems like a whole lot of hardware to be sitting there<BR>waiting for a disaster. unless im just not understanding pstn/pri failback.<BR>can someone shed some light?<BR>> <BR>> also, if you've got a
dedicated full t1 line for voice, and have a low<BR>amount of users for that t1, is there really to worry about failing back to<BR>a pstn? seeing how reliable a t1 is. is anyone out here using full voip<BR>telelphony solution only?<BR>> <BR>Having had our XO connection go down within a week or so of switching to<BR>a PRI, I can see how having a fallback would be good. It was down for<BR>about 4 hours. However, that was back in May or June and hasn't been<BR>down since. I couldn't justify having something on standby for our<BR>business. But, our clients can reach us by phone in the office or cell,<BR>and we can easily make outgoing calls on our cellphones. Our type of<BR>business is not really dependent on absolutely having the phones up 100%<BR>of the time.<BR><BR>If you do get a fallback, get it from different providers. If your T1<BR>from provider X is down, chances are a PRI from provider X will be<BR>following the same path and be down as well.<BR>-----BEGIN PGP
SIGNATURE-----<BR>Version: GnuPG v1.4.5 (MingW32)<BR>Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org<BR><BR>iD8DBQFFHOX9VVXe/Qmwk9QRArSYAKDJN6Tf/L+L3ruXyXYcAeVbIyMxBwCgi2wM<BR>YwcV6yYYJX2cVly2z0dsdZ4=<BR>=+Ik2<BR>-----END PGP SIGNATURE-----<BR><BR><BR><BR>_______________________________________________<BR>--Bandwidth and Colocation provided by Easynews.com --<BR><BR>asterisk-users mailing list<BR>To UNSUBSCRIBE or update options visit:<BR>http://lists.digium.com/mailman/listinfo/asterisk-users<BR></BLOCKQUOTE><BR><p> 
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