What you'll learn
Install an OpenSIPS server, register phones make a call one to another, from and to a PSTN
Requirements
Linux
MySQL
Description
OpenSIPS is one of the most popular open-source SIP servers in the market. The project started in 2008 as a fork of the SER project and it has evolved with new versions every year
The SIP and OpenSIPS skill is one of the most valuable for those pursuing a career in the telecommunication market. It is not hard to find jobs in this area with six-figures.
With OpenSIPS you can
Register Users
Make Calls
Manipulate any header or body of the message
Route thousands of calls per second based on millions of prefix entries using Dynamic Routing
Route according to the quality of the call
Load balance Asterisk/FreeSwitch servers
Handle anycast scenarios
Support millions of subscribers in a single server
Translate IPv4 to IPv6
While this course was created to be a preparation course for the OpenSIPS Bootcamp, it is an excellent introductory course to OpenSIPS.
Objectives
By the end of this training, you should be able to
Install OpenSIPS in a Debian 10 server
Understand the basics of the opensips.cfg file
Build a simple system capable to make calls between phones and a gateway
Attend the OpenSIPS Bootcamp following the required prerequisites
Topics Covered
Introduction to SIP
Introduction to OpenSIPS
Installation
Set OpenSIPS to start automatically
Building a simple system
Register several phones
Make calls between phones
Make calls to a gateway
Who this course is for
People interested to build high volume communication applications
ITSPs employess
IP PBX managers
IP PBX, Session Border Controllers and SoftSwitch developers
Homepage

https://www.udemy.com/course/quick-start-to-opensips/