"CenturyLink (NYSE: CTL) has set a goal to reduce power consumption on its public switched telephone network by nearly 22,000 megawatt-hours a year, reducing greenhouse gas emissions as more customers migrate to VoIP and mobile voice services.
Although CenturyLink is growing its IP-based voice service, this project is focused on consolidating more than 400,000 legacy PSTN subscriber lines across 50 Class 5 voice switches. " They're called class 5 because of 5ESS which is the most used class 5 switch at CenturyLink. Sorry, but I had to clarify this. Frsnk ----------------------------------- Frank Wimberly My memoir: https://www.amazon.com/author/frankwimberly My scientific publications: https://www.researchgate.net/profile/Frank_Wimberly2 Phone (505) 670-9918 On Thu, Dec 26, 2019, 8:43 AM Frank Wimberly <wimber...@gmail.com> wrote: > > June 2019) (Learn how and when to remove this template message). 5ESS used > in a mobile telephone network. The 5ESS Switching System is a Class 5 > telephone electronic switching system developed by ... > ----------------------------------- > Frank Wimberly > > My memoir: > https://www.amazon.com/author/frankwimberly > > My scientific publications: > https://www.researchgate.net/profile/Frank_Wimberly2 > > Phone (505) 670-9918 > > On Thu, Dec 26, 2019, 8:36 AM Marcus Daniels <mar...@snoutfarm.com> wrote: > >> Frank writes: >> >> >> >> “This was the telephone network in question.“ >> >> >> >> With the mobile carriers and VOIP, I wonder how much of that code is >> still used? I once worked for a small company that wrote software to do >> billing for long distance telephone carriers. I was amazed by the >> seemingly arbitrary complexity. Complex at a policy and >> inter-organizational level, not just the software. >> >> >> >> Marcus >> >> >> >> *From: *Friam <friam-boun...@redfish.com> on behalf of Frank Wimberly < >> wimber...@gmail.com> >> *Reply-To: *The Friday Morning Applied Complexity Coffee Group < >> friam@redfish.com> >> *Date: *Thursday, December 26, 2019 at 5:39 AM >> *To: *The Friday Morning Applied Complexity Coffee Group < >> friam@redfish.com> >> *Subject: *Re: [FRIAM] IT is Not Sustainable >> >> >> >> At Bell Labs we sure didn't pay anyone by LOC. We also had code reviews >> and software tools to enforce standards and very high pay. With a brand >> new PhD I made more than all but the 3 most senior members of the CS >> faculty at Pitt where I was a grad student. This was the telephone network >> in question. >> >> >> >> Despite the high pay I disliked software administration methodology. The >> disagreements between the software tool developers (version control, >> integration of subsystems, compilers, etc) and the implementors of the >> applications, such as call processing, were epic. Recall that Bell Labs >> invented C and Unix. After 18 months I returned to Pittsburgh to work at >> Carnegie Mellon in Robotics for two thirds the salary. >> >> >> >> Number 5 ESS was first deployed in March 1982, 4 years after work began. >> I suspect that it didn't have 200 million lines of code then, but close to >> it. Maybe Dave doesn't consider it an IT project but many of the software >> tools that were developed were included in later Unix releases, I believe. >> >> >> >> It's going to be a beautiful day in Santa Fe. >> >> >> >> Frank >> >> >> >> >> >> ----------------------------------- >> Frank Wimberly >> >> My memoir: >> https://www.amazon.com/author/frankwimberly >> >> My scientific publications: >> https://www.researchgate.net/profile/Frank_Wimberly2 >> >> Phone (505) 670-9918 >> >> >> >> On Thu, Dec 26, 2019, 1:28 AM Gary Schiltz <g...@naturesvisualarts.com> >> wrote: >> >> Spot on. >> >> >> >> On Thu, Dec 26, 2019 at 2:29 AM Marcus Daniels <mar...@snoutfarm.com> >> wrote: >> >> Most programmers won't struggle to rationalize or improve code written by >> other people. The problem is that people are selfish. They think that >> their 10K LOC problem is beautiful and nimble, but that 1M LOC was once >> that too. It's the behavior of teenagers. >> >> On 12/25/19, 10:47 PM, "Friam on behalf of Russell Standish" < >> friam-boun...@redfish.com on behalf of li...@hpcoders.com.au> wrote: >> >> It's all about the LOC! Actually, I kind of agree - having worked on >> some MegaLOC codebases that functionally seemed to be no more complex >> than a 10KLOC project I'm involved in, the 10KLOC project is much more >> nimble - compile times are far less, making changes to the code easier >> and bugs less troublesome to winkle out. >> >> I've also refactored or rewritten pieces of code to slash the LOC by a >> factor of 3 or more for that particular section (eg 3KLOC -> 1KLOC) - >> but usually when bugs and problems kept on cropping up in that >> section. >> >> Even though the LOC is an entirely bogus measurement - if you paid a >> programmer by LOC, you'd get boilerplate and crappy comments. >> >> -- >> >> >> ---------------------------------------------------------------------------- >> Dr Russell Standish Phone 0425 253119 (mobile) >> Principal, High Performance Coders >> Visiting Senior Research Fellow hpco...@hpcoders.com.au >> Economics, Kingston University http://www.hpcoders.com.au >> >> ---------------------------------------------------------------------------- >> >> ============================================================ >> FRIAM Applied Complexity Group listserv >> Meets Fridays 9a-11:30 at cafe at St. John's College >> to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com >> archives back to 2003: http://friam.471366.n2.nabble.com/ >> FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove >> >> >> ============================================================ >> FRIAM Applied Complexity Group listserv >> Meets Fridays 9a-11:30 at cafe at St. John's College >> to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com >> archives back to 2003: http://friam.471366.n2.nabble.com/ >> FRIAM-COMIC <http://friam.471366.n2.nabble.com/FRIAM-COMIC> >> http://friam-comic.blogspot.com/ by Dr. Strangelove >> >> ============================================================ >> FRIAM Applied Complexity Group listserv >> Meets Fridays 9a-11:30 at cafe at St. John's College >> to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com >> archives back to 2003: http://friam.471366.n2.nabble.com/ >> FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove >> >> ============================================================ >> FRIAM Applied Complexity Group listserv >> Meets Fridays 9a-11:30 at cafe at St. John's College >> to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com >> archives back to 2003: http://friam.471366.n2.nabble.com/ >> FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove >> >
============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com archives back to 2003: http://friam.471366.n2.nabble.com/ FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove
