Great point. We have had similar issues with Verizon support. I think that the issue is that if you add a VoIP PBX, and a gateway, and an IP network, you have a lot more potential points of failure in line. No matter how reliable each component may be, one is only capable of decreasing reliability and not increasing reliability unless you are able to provide some redundancies that you wouldn't otherwise be able to leverage.
I think it also depends upon if those calls go off campus or not. If they do, then you still have to connect to Verizon for local calls unless you are doing SIP trunks which add their own points of failure. On the other hand, if all those calls stay on campus, then you are much more in control over all the pieces.
From: The EDUCAUSE Network Management Constituent Group Listserv [mailto:[log in to unmask]] On Behalf Of Fishel Erps
Sent: Tuesday, March 05, 2013 2:23 PM
To: [log in to unmask]
Subject: Re: [NETMAN] VoIP question regarding Life Safety Lines
We keep our Life Safety lines on POTS as well. However, given that
POTS lines went down during Sandy as well, and given Verizon's
increasing scaled-back support of legacy copper (and delay of
repair/response), I wonder if this should be changed down the line since
our VOIP system is far more reliable than our POTS lines. For right
now, I believe it is a building code issue.
Sr. Network Engineer
School of Visual Arts
E-Mail: [log in to unmask]
On 03/04/2013 09:53, James Moskwa wrote:
> As we have been moving our campuses over to VoIP it has been our
> practice to keep Life Safety lines (elevator, emergency hallway phones,
> etc.) on wire line service (POT’s or Centrex in some cases). I was
> wondering what other schools are doing along these lines.
> -- Jim
> Jim Moskwa
Senior Network Architect
> Information Technology Department
> Johnson & Wales University
> 8 Abbott Park Place
> Providence, RI 02903
> Office: 401-598-1556
> Mobile: 401-249-0579
> eFax: 401-223-4998
> Email: [log in to unmask] <[log in to unmask]" target="_blank">http:[log in to unmask]>
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