kamailio software package provides very fast and configurable SIP proxy, 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 kamailio
kamailio is installed in your system.
Make ensure the kamailio package were installed using the commands given below,
$ sudo dpkg-query -l | grep kamailio *
You will get with kamailio package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Network |
| Package | kamailio |
| Version | 4.0.4-1ubuntu2 |
| Description | very fast and configurable SIP proxy |
| Sub Section | Net |