c2faxsend(1) on Linux
The text b5652031c771, as Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it. The page shows this text now.
send fax using hylafax to ISDN using CAPI
Flags it lists
-
-C -
-P -
-V -
-c -
-f -
-h -
-m -
-v