isdnsync(1) on Linux
The text 34e63079fed6, as Debian 11 (Bullseye) shipped it.
use a cheap HFC-S card with the public telephone network as frequency standard for your E1 line
The text 34e63079fed6, as Debian 11 (Bullseye) shipped it.
use a cheap HFC-S card with the public telephone network as frequency standard for your E1 line