From: malQRMassimilation@gmail.com   
      
   On Tue, Jan 24, 2023 at 09:36:37AM -0000, Marc SCHAEFER wrote:   
   > On  23 Jan 2023 12:31:25 -0500,   
   > Albert Erdmann  wrote:   
   > > I am thinking about the many lines used for fire alarm and elevator   
   > > emergency phones. Any idea what building owners are doing in this regard?   
   >   
   > In Switzerland, they had to be replaced either by GSM (and 4G/5G   
   > presumably, because 2G is already obsolete, and 3G will become obsolete   
   > soon), or VoIP.   
   >   
   > I heard of some cases where they still had the analog dialing devices   
   > (the WSG35-2 was very popular, it was a modem that could also just dial   
   > and then switch to an analog microphone). They now plugged those to the   
   > ATA port of a VoIP router. As long as the dialing device uses DTMF to   
   > dial, it works like a charm.   
      
   In the U.S., it's common to find business Internet connections that   
   depend on AC power to operate, which go dead during a power   
   failure. Since most elevators here also run on AC, any widespread   
   power failure leads to tens or hundreds of people stranded in   
   elevators, and, if the emergency phones in those elevators require   
   Internet connections to work, also unable to call for help.   
      
   Bill Horne   
      
   --   
   (Pleae remove QRM for direct replies)   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)