-=> Quoting Roy J. Tellason to Jasen Betts <=-

 RJT> Jasen Betts wrote in a message to All:
 
 JB> Hi All.
 
 JB> what does C represent in a dial string?
 
 JB> my modems generate a tone for the C does anyone know what that tone
 JB> is for? 

 RJT> Just taking a guess...

 RJT> Touch-tone standards seem to encompass not 12,  but _16_ keys on the
 RJT> keypad.  The other four are not commonly found,  and in fact I don't
 RJT> think I've ever seen them actually,  except in a diagram in a book. 
 RJT> But if they were there they might perhaps be called A, B, C, and D? 
 RJT> Either that or you have a modem that's interpreting the usual letters
 RJT> that appear on phone dials. 

The full touchtone pad is this:

[1] [2] [3] [A]
[4] [5] [6] [B]
[7] [8] [9] [C]
[*] [0] [#] [D]

Each row and column has a frequency, so pressing a key generates the
tone pai for the particular row & column. 

And yes, a lot of modems will generate the A, B, C, & D tone pairs,
just as a number will do v.23. It's just that most don't *document* it.


--- FMailX 1.60