Have a look at CS web site, Designer, Integrator and Operator of Mission Criticals Systems. who acuired the Prelude-IDS solution. 

Do you know Vigilo,the open-source Prelude complement to monitor large systems ?

The Prelude IDS web site is under heavy (re)construction. Many pages are not accessible yet (source download, mailing list, etc.).An extern temporary announce list is available on the contact page.

News Release

21 Jan 2012 

Prelude-Vigilo Convergence

Telecom magazine article about convergence between Prelude and Vigilo products.

Redirection Prelude Project