Install dahdi by entering the following commands in the terminal:
sudo apt update sudo apt install dahdi
Description:
utilities for using the DAHDI kernel modules
DAHDI (formly Zaptel) is an interface for telephony devices used by e.g. the Asterisk PBX software. The dahdi-* packages provide the kernel DAHDI kernel modules and their required setup environment. . This package includes userspace utilities required to configure DAHDI modules.
Homepage: http://www.asterisk.org/
Version: 1:2.11.1-3ubuntu1
Section: universe/comm