nanog mailing list archives
RE: VoIP vs POTS (was Re: Operation Ghost Click)
From: "Brandt, Ralph" <ralph.brandt () pateam com>
Date: Thu, 3 May 2012 11:14:42 -0400
Yes, those things happen. But there are several such failure points in the POTS system and hundreds in VOIP. I support VOIP, ISDN etc. But I know all too well the failure points... Ralph Brandt -----Original Message----- From: Jay Ashworth [mailto:jra () baylink com] Sent: Wednesday, May 02, 2012 8:25 PM To: NANOG Subject: Re: VoIP vs POTS (was Re: Operation Ghost Click) ----- Original Message -----
From: "Jeroen van Aart" <jeroen () mompl net>
I don't doubt it. However my practical experience is such that 100% of the time (I lost count after 20 or so, in a decade) I experienced a power failure the phone would still work. I am sure I am not the only one.
Sure. (We're not really having this conversation here, are we? :-) Copper POTS service is centrally powered from a battery plant in the wire center, which is generally something like -52V nominal at 6000-8000ADC continuous. If you get a tool across those busbars uninsulated, it will flash into plasma much faster than you can blink; this happened at SPBGFLXA89H in the... mid to late 80s? I no longer remember the details, but the guy couldn't hear for several days, and the *entire* CO -- 30klines of GTD-5 and 100klines of 5E Remote -- was No Dial Tone for at least 12 hours while they cleaned it up; SPPD and PCSO were stationed on streetcorners to take emergency reports. Cheers, -- jra -- Jay R. Ashworth Baylink jra () baylink com Designer The Things I Think RFC 2100 Ashworth & Associates http://baylink.pitas.com 2000 Land Rover DII St Petersburg FL USA http://photo.imageinc.us +1 727 647 1274
Current thread:
- Re: Cellphones and Audio (was Ghost Click, though I got no idea why), (continued)
- Re: Cellphones and Audio (was Ghost Click, though I got no idea why) Jay Ashworth (May 03)
- Re: Cellphones and Audio (was Ghost Click, though I got no idea why) Joel jaeggli (May 03)
- VoIP/Mobile Codecs (was Re: Operation Ghost Click) Sean Harlow (May 02)
- Re: VoIP/Mobile Codecs (was Re: Operation Ghost Click) Jeroen van Aart (May 02)
- RE: VoIP/Mobile Codecs (was Re: Operation Ghost Click) Brandt, Ralph (May 03)
- VoIP vs POTS (was Re: Operation Ghost Click) Jared Mauch (May 02)
- Re: VoIP vs POTS (was Re: Operation Ghost Click) William Herrin (May 02)
- Re: VoIP vs POTS (was Re: Operation Ghost Click) Jared Mauch (May 02)
- Re: VoIP vs POTS (was Re: Operation Ghost Click) Jeroen van Aart (May 02)
- Re: VoIP vs POTS (was Re: Operation Ghost Click) Jay Ashworth (May 02)
- RE: VoIP vs POTS (was Re: Operation Ghost Click) Brandt, Ralph (May 03)
- The Compexity Factor (was VoIP v POTS) Jay Ashworth (May 03)
- RE: VoIP vs POTS (was Re: Operation Ghost Click) Brandt, Ralph (May 03)
- Re: VoIP vs POTS (was Re: Operation Ghost Click) Tei (May 03)
- Re: VoIP vs POTS (was Re: Operation Ghost Click) Mike Hale (May 03)
- Re: VoIP vs POTS (was Re: Operation Ghost Click) Sean Harlow (May 03)
- RE: VoIP vs POTS (was Re: Operation Ghost Click) Brandt, Ralph (May 03)
- Re: VoIP vs POTS (was Re: Operation Ghost Click) Sean Harlow (May 03)
- RE: VoIP vs POTS (was Re: Operation Ghost Click) Brandt, Ralph (May 03)
- RE: VoIP vs POTS (was Re: Operation Ghost Click) Brandt, Ralph (May 03)
- Re: VoIP vs POTS (was Re: Operation Ghost Click) Jay Ashworth (May 03)