faxmodem(8hylafax) on Linux
The text 8b31d1c87b80, as Debian 2.2 (Potato), Debian 2.1 (Slink), Debian 2.0 (Hamm) shipped it.
dynamically add a modem to a HylaFAX server system
Flags it lists
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-P -
-c -
-p