$ sudo apt-get update
$ sudo apt-get install libss7-1 

libss7-1 is installed in your system.

Make ensure the libss7-1 package were installed using the commands given below,

$ sudo dpkg-query -l | grep libss7-1 *

You will get with libss7-1 package name, version, architecture and description in a table

libss7-1 package basic information: