Hi, I'm testing the p_usrloc module (Kamailio version 3.3.2, installed via ubuntu package) and it looks like it's working but for some reason a re-registration is causing a new entry being added to the distributed location table instead of updating the existing one. The kamailio configuration looks like this: #!define DBURL "mysql://openser:openserrw@localhost/openser" loadmodule "p_usrloc.so" modparam("p_usrloc", "db_mode", 3) modparam("p_usrloc", "write_db_url", DBURL) modparam("p_usrloc", "read_db_url", DBURL) modparam("p_usrloc", "write_on_db", 1) modparam("p_usrloc", "alg_location", 1) modparam("p_usrloc", "reg_db_table", "locdb") mysql> select * from locdb; +----+----+-------------------------------------------+--------+--------+---------------------+-------+----+ | id | no | url | status | errors | failover | spare | rg | +----+----+-------------------------------------------+--------+--------+---------------------+-------+----+ | 1 | 1 | mysql://root:secret@172.16.10.131/openser | 1 | 0 | 1900-01-01 00:00:01 | 0 | 0 | | 1 | 2 | mysql://root:secret@172.16.10.132/openser | 1 | 0 | 1900-01-01 00:00:01 | 0 | 0 | +----+----+-------------------------------------------+--------+--------+---------------------+-------+----+ When using the default usrloc functionality everything is working fine. The only difference I noticed is that the default usrloc is using MYSQL UPDATE to update the location entry and that p_usrloc is using MYSQL REPLACE. Regards Hans