On 28 Sep 2021, at 13:20, Volker Denneberg &lt;v.denneberg(a)m3connect.de&gt; wrote: Hi, I am searching for a setup where phones register at a central kamailio and kamailio shares these contact infos with multiple asterisks. So they all need to share a database. For redundancy reasons, the database should work across 2 datacenters. As far as 1 understood there are some options use mysql - good chances to find example code, Siremis API, seems to be the standard solution use redis - more performant than mysql use ldap - good chances to integrate with existing IT management but most difficult to configure Maybe I missed a better approach? Kamailio's ldap driver (http://www.kamailio.net/docs/modules/5.3.x/modules/db2_ldap.html <http://www.kamailio.net/docs/modules/5.3.x/modules/db2_ldap.html>) seems to be from 2008 - is it still recommended ? Kind regards, Volker __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions * sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org> Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users>