TELECOM Digest OnLine - Sorted: Re: Phone Multiplexer Failures, Power Outages, Firewall Problems

Re: Phone Multiplexer Failures, Power Outages, Firewall Problems

Jim Stewart (
Wed, 20 Jun 2007 23:23:58 -0700

On Jun 19, 3:55 pm, John Levine <> wrote:

> The decreasing resiliency of the phone system to power failures is a
> real problem that nobody seems to be addressing.

> It used to be all basic telephones were powered by the central office
> which had diesel generators to recharge the batteries in case of
> commercial failure. While the likelihood of a power failure is fairly
> low, nasty storms or power company failures do create local outages
> that can last for 24-48 hours. During such an outage telephone
> service is especially critical since roads may be blocked. PBXs had
> batteries and hand generators for ringing.

> It seems most people at home have cordless phones powered by house
> current. How long, if at all, will such phones last in a power
> failure? People are supposed to have a plain landline phone, but do
> they?

> But I wonder today how many business PBXs have any battery backup at
> all for both talk and ringing, especially for an extended period of
> time.

A quick and cheap fix for a small to medium sized business is to run
the first two CO pairs up to the receptionist's desk, connect them to
modular jacks and leave a couple of POTS unplugged under the desk for
emergencies. I've done this at a couple places where I worked and it
was greatly appreciated.

[TELECOM Digest Editor's Note: Even in a residence with PBX-like
service. I am no fool (although some people say I look and act like
one), and in my computer room, where the phone lines come in from
outside to the PBX box on the wall, I have a couple of terminal boxes
there as well, tapping the outside line. We do not have that many
power outages (I am three blocks down the street from our municipal
electric grid), but I do get a few outages, i.e. phone service
through the PBX goes off (as do the computers, etc). I take one spare
phone and plug it into that box, and get reliable Sage Telecom
service. (Sage replaced Prairie Stream several months ago.) I am
reminded: if you are _anywhere_ in the old SBC Southwestern Bell
operating territory you can get Sage Telecom for about half of what
you paid to SBC with a lot less grief as well. Sage certainly does not
lie as SBC used to do either. Check them out and let me know how it
works for you. Sage is basically a UNI-type operation, just as Prairie
Stream was before Ma Bell put them out of business, but Sage is much
larger than Prairie Stream ever was, even being part of Terra World.

Post Followup Article Use your browser's quoting feature to quote article into reply
Go to Next message: Rick Merrill: "Re: Phone Multiplexer Failures, Power Outages, and Firewall Problems"
Go to Previous message: "Re: Metroliner "Cell" Service"
TELECOM Digest: Home Page