muta...@gmail.com  wrote:   
   > On Saturday, June 12, 2021 at 2:08:40 AM UTC+10, Grant Taylor wrote:   
   >   
   > > > I am proposing ATDE which means dial an EBCDIC remote.   
   >   
   > > Phones don't dial with ASCII or EBCDIC or anything else for that matter.   
   >   
   > But I'm expecting the modem to do an ASCII-EBCDIC   
   > translation when presented with an "E" or "A" that   
   > doesn't match the configured setting being used by   
   > the terminal.   
      
   > I want the modem to do it. Is there a technical barrier   
   > to that?   
      
   For some time my e-mail was on VM/CMS accessed via modem   
   from a PC.  Plain ATDT worked fine to establish connection.   
   Terminal emulator (Kermit) knew that it was connected to   
   EBCDIC system and did needed translation.   
      
   Doing translation in modem actually would complicate   
   terminal emulator.  Namely, beside running terminal   
   programs on mainframe terminal emulator also handled   
   file transfers.  Character translation inside modem   
   would complicate file transfers, either terminal   
   program would have to switch off character translation   
   or somewhat compensate for it in file transfer protocol.   
      
   So, you can do what you want, by why complicate things   
   without need?   
      
   P.S.  To folks who say that mainframe can not do ASYNC:   
   this was done via a hardware hack on mainfraime side.   
      
   --   
                                 Waldek Hebisch   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)