isdnsync(1) on Linux
The text 4cb5bb0ae17b, as Debian 9 (Stretch) shipped it.
use a cheap HFC-S card with the public telephone network as frequency standard for your E1 line
The text 4cb5bb0ae17b, as Debian 9 (Stretch) shipped it.
use a cheap HFC-S card with the public telephone network as frequency standard for your E1 line