pagesend(8) on Linux
The text 83725569e9f1, as Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it.
HylaFAX IXO/TAP and UCP transmit program
Flags it lists
-
-l -
-p