isdnrep(1) on Linux
The text 9626eac9e5f4, as Debian 8 (Jessie), Debian 7 (Wheezy) shipped it.
report isdn activity
Flags it lists
-
-FX -
-S -
-V -
-a -
-d -
-fFILE -
-i -
-n -
-o -
-rPROV -
-time -
-v -
-wX