Hi all , I try to configure with cfg_db, but after create and insert value into tables in mysql , I cannot start kamailio. I add My config in kamalio.cfg ============== Loadmodule “cfg_db.so” modparam("cfg_db", "db_url", "mysql://openser:openserrw@localhost/kamailio") modparam("cfg_db", "transl_tbl", "cfg_transl") modparam("cfg_db", "custom_tbl", "cfg_custom") I add and insert in mysql as: =============== cfg_transl table: group_name|name|cfg_table|cfg_table_group_name_field|cfg_table_name_field|cfg_table_value_field core|use_dst_blacklist|cfg_dns||| core|dst_blacklist_mem|cfg_dns||| core|dst_blacklist_expire||| my|route_addr|cfg_my|my_group_name|my_name|my_value ; overrides <default> values my|use_rtp_proxy|cfg_my|my_group_name|my_name|my_value *|*||||; matches all param ids, points to tables defined in row <default> <default>||cfg_var|group_name|name|value ; default cfg_table* values cfg_custom table: group_name|name|value_type|min_value|max_value|description my|route_addr|S|||Routing address my|use_rtp_proxy|I|0|1|Use RTP proxy cfg_var table: group_name|my_name|value core|debug|4 cfg_my table: my_group_name|my_name|my_value my|route_addr|127.0.0.1 my|use_rtp_proxy|1 cfg_dns table: group_name|name|value dns|use_dst_blacklist|1 dns|dst_blacklist_mem|1024 dns|dst_blacklist_expire|60 when I start kamailio the log show : =============== Aug 18 12:04:56 appliance /usr/local/sbin/kamailio[2771]: INFO: usrloc [hslot.c:53]: locks array size 512 Aug 18 12:04:56 appliance /usr/local/sbin/kamailio[2771]: ERROR: <core> [cfg/cfg_script.c:80]: ERROR: new_cfg_script_var(): variable already exists: my.route_addr Aug 18 12:04:56 appliance /usr/local/sbin/kamailio[2771]: ERROR: cfg_db [cfg_db.c:335]: cfg_db: Error declaring cfg int 'my.route_addr' Aug 18 12:04:56 appliance /usr/local/sbin/kamailio[2771]: ERROR: <core> [sr_module.c:860]: init_mod(): Error while initializing module cfg_db Thanks for looking. TRUONG NGOC THANH Telecommunications Engineer Tel: 0984 480 646 Y!M: ngoc217thanh