In an IMS (IP Multimedia Subsystem) network there are Application Servers (ASs) which host and execute services. These are often SIP (Session Initiation Protocol) servers. The goal for this thesis was to evaluate a selection of open source SIP ASs to see which one was most suited for IMS service development.
Ten different SIP ASs was found in an initial search. They were briefly reviewed and some of them were chosen as candidates for further investigation.
The documentation of the chosen servers were thoroughly explored and evaluated; as was the installation process and how to deploy a service to them. Finally the servers were installed and a service was implemented and deployed to an IMS network.
Unfortunately, I could not point out one of the ASs to be more suited than another for deploying an IMS service on. This was because they had different pros and cons and none of them were distinguishing in a way that made them superior to the other.
Source: Linköping University
Author: Kumlin, Veronica