Hi,
a small mistake in pua_usrloc documentation - bad for copy/pasters like me :-) See http://www.opensips.org/html/docs/modules/1.4.x/pua_usrloc.html#id2525562
For both exported module parameters, the module name is not enclosed in quotes.
e.g. modparam(pua_usrloc, "default_domain", "opensips.org")
should be modparam("pua_usrloc", "default_domain", "opensips.org")
Regards
Sebastian
Fixed. Thanks a lot for reporting.