$ sudo apt-get update
$ sudo apt-get install hamradio-digitalvoice 

hamradio-digitalvoice is installed in your system.

Make ensure the hamradio-digitalvoice package were installed using the commands given below,

$ sudo dpkg-query -l | grep hamradio-digitalvoice *

You will get with hamradio-digitalvoice package name, version, architecture and description in a table

hamradio-digitalvoice package basic information: