call(1) on Linux
The text 2acfd2e88e30, as Debian 11 (Bullseye) shipped it.
make an AX.25, NET/ROM or Rose connection.
Flags it lists
-
-8 -
-R -
-S -
-T -
-W -
-b -
-d -
-h -
-i -
-p -
-r -
-s -
-t -
-v -
-w