Hi, seems to be a typo in the documentation for the pua_reginfo module (for at least 3.4.x, 4.0.x and 4.1.x versions). Section 3.1 default_domain(str), example 1.1 is: modparam("pua_bla", "default_domain", "kamailio.org") Should be: modparam("pua_reginfo", "default_domain", "kamailio.org") -- Marius Pedersen