Hi all, in order to achieve reliability I am currently trying to setup two SIP proxy responsible for a single DNS SRV domain. My User Agents do support a DNS fail-over mechanism and they are able to communicate with the secondary Proxy Server when the dialog with the Primary Proxy fails. At this time I am setting up two proxy servers (primary and secondary) both responsible for the same DNS SRV domain. Each Proxy do connect to its local mysql database (located on the same host of the SER) and they are both configured to exchange REGISTERs using the t_replicate() function. Now I have to setup the mysql DB replication and I have some questions: 1) Is the described way of setting up a primary and a secondary Proxy server right ? 2) Which kind of DB replication should I setup ? 3) Do I have to exclude the USRLOC table from the replication or not ? (the USRLOC replication should be guaranteed by the REGISTERs exchange) Thank you in advance, Andrea Bondavalli I.NET S.p.A. - Research & Development mailto:a.bondavalli@inet.it Tel. +39.02.328637232 fax. +39.02.328637702