ihu software package provides Qt VoIP softphone with an own, encrypted protocol, you can install in your Ubuntu 12.04 LTS (Precise Pangolin) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install ihu
ihu is installed in your system.
Make ensure the ihu package were installed using the commands given below,
$ sudo dpkg-query -l | grep ihu *
You will get with ihu package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Sound |
| Package | ihu |
| Version | 0.6.0-3ubuntu1 |
| Description | Qt VoIP softphone with an own, encrypted protocol |
| Sub Section | Sound |