isdnrep(1) on Linux
The text 3341a69aa84c, as Debian 3.0 (Woody) shipped it.
report isdn activity
Flags it lists
-
-FX -
-S -
-V -
-a -
-d -
-fFILE -
-i -
-n -
-o -
-time -
-v -
-wX