[GreenKeys] question about TTY signals and Telephone Signals

[WA3FRP at aol.com]

Eugene, 
 
When I was at Western Union, we would regularly run 60 ma loop circuits,  
called local circuits, to our customers who were city blocks away from the Telex  
exchange.
 
It didn't seem to interfere with either data or voice service that ran in  
the same cables.  
 
You should be OK.
 
73 de Russ WA3FRP