tcat(1) on Linux
The text c7044932d41b, as Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge), Debian 3.0 (Woody), Debian 2.2 (Potato), Debian 2.1 (Slink), Debian 2.0 (Hamm), Debian 1.3 (Bo) shipped it.
GSM 06.10 lossy sound compression
Flags it lists
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-C -
-F -
-a -
-c -
-d -
-f -
-h -
-l -
-p -
-s -
-u -
-v