On 11/06/2010 08:26 PM, Sébastien Cramatte wrote: Hello, First of all you need to clearly define what you need to accomplish. I suspect you need some sort of load balancing. For that you can use either carrierroute or lcr. For carrierroute you can have blacklist capabilities as well. Please read the README or the info on this page http://www.kamailio.org/docs/modules/3.1.x/modules/carrierroute.html You can configure Carrierroute either in text file mode or in DB mode. You will have there a snippet with some cfg code that describes balancing based on callid, also some DB setups for the table. modparam("carrierroute", "config_source", "db") modparam("carrierroute", "db_url", "dbdriver://username:password@dbhost/dbname") are mandatory for basic configuration. The other params are pretty safe as default. Of course the trick of using carrierroute is how you populate the tables in the DB, but you will have enough example in the web page I referred above. Please get back with a more specific question after you try using the module. Cheers Marius