kamailio-websocket-modules software package provides Websocket module for kamailio, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install kamailio-websocket-modules
kamailio-websocket-modules is installed in your system.
Make ensure the kamailio-websocket-modules package were installed using the commands given below,
$ sudo dpkg-query -l | grep kamailio-websocket-modules *
You will get with kamailio-websocket-modules package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Network |
| Package | kamailio-websocket-modules |
| Version | 4.3.4-1.1ubuntu2 |
| Description | Websocket module for kamailio |
| Sub Section | Net |