libpri1.4 software package provides Primary Rate ISDN specification library, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libpri1.4
libpri1.4 is installed in your system.
Make ensure the libpri1.4 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libpri1.4 *
You will get with libpri1.4 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Libraries |
| Package | libpri1.4 |
| Version | 1.4.14-1 |
| Description | Primary Rate ISDN specification library |
| Sub Section | libs |