$ sudo apt-get update
$ sudo apt-get install libtelepathy-farstream2 

libtelepathy-farstream2 is installed in your system.

Make ensure the libtelepathy-farstream2 package were installed using the commands given below,

$ sudo dpkg-query -l | grep libtelepathy-farstream2 *

You will get with libtelepathy-farstream2 package name, version, architecture and description in a table

libtelepathy-farstream2 package basic information: