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Friday, December 22, 2006

Kamailio (OpenSER) Summit 2006 - OpenSER IMS

IMS (IP Multimedia Subsystem) couldn't miss such event. Seen as evil for the freedom of IP world, the way Telcos can restrict mobility, or, actually, to charge for it.

Joachim Fabini of Technical University of Vienna, shared his experiences while implementing a OpenSER-based IMS in CAMPARI project (interesting concept: IMS in a bottle). Along with the architecture and components, very valuable were his conclusions and thought about IMS and future directions of VoIP, where the mobile communication will meet IP world and directions to be approached to ensure success.

A very interesting result of this experiment was that they used Kamailio (OpenSER) barely as it is, with no hacking, IMS components being Kamailio (OpenSER) instances with different config file. The work was a proof of concept, optimization could be brought by code writing.

Download slides of OpenSER IMS.

Kamailio (OpenSER) Summit 2006 - Practical Peering with OpenSER

When comes to peering, the hot word about is 'security'. How trust able the other party is, how can you ensure safety and security for your subscribers. Many VoIP services are isolated islands, walled gardens. This is not something most of VoIP fans look for, they want freedom and ability to talk with people around the world, no matter of VoIP provider.

One solutions is federation, alliance between VoIP providers sharing the trust relationships. Klaus Darilion from enum.at introduced such solution in Kamailio (OpenSER), based on domain policies and secure communication via TLS.

The management of trustable federations and domains become more flexible and dynamic. The slides are going to low level of technical aspects to exemplify such configuration with Kamailio (OpenSER).

Download slides of Practical Peering With OpenSER