NAME

dn − DN-11 ACU interface

DESCRIPTION

The dn?  files are write-only.  The permissible codes are:

0−9 dial 0-9

∗ or : dial ∗

# or ; dial #

− 4 second delay for second dial tone

e or < end-of-number

w or = wait for secondary dial tone

f flash off hook for 1 second

The entire telephone number must be presented in a single write system call. 

FILES

/dev/dn? 

SEE ALSO

dh(4), du(4). 

May 16, 1980