isdnsync1
Use a cheap hfc-s card with the public telephone network as frequency standard for your e1 line
Usage
isdnsync <card>
Overview
isdnsync is a small tool that initializes a cheap HFC-S ISDN-Card so that bit and frameclock are present on 2 IC-Pins. These signals can be used to feed HFC-E1 card with a very exact clock.
Releases
5 releases since Debian 9 (Stretch); the text changed 4 times.