linphonec(1) on Linux
The text 0a2a0bfded5a, as Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it.
Console interface of linphone, a SIP compatible internet phone.
Flags it lists
-
-c -
-d -
-h -
-l