I see that xcap_client is failing to parse a document from the XCAP server: May 20 12:41:47 sandbox /usr/sbin/kamailio[11280]: ERROR:xcap_client:send_http_get: while performing curl option May 20 12:41:47 sandbox /usr/sbin/kamailio[11280]: ERROR:rls:get_resource_list: while fetching data from xcap server May 20 12:41:47 sandbox /usr/sbin/kamailio[11280]: ERROR:rls:rls_handle_subscribe: while attepmting to get a resource list May 20 12:41:47 sandbox /usr/sbin/kamailio[11280]: ERROR:rls:rls_handle_subscribe: occured in rls_handle_subscribe I know the document is retrieved by the XCAP client (I see the HTTP traffic). The document content is very simple: <?xml version="1.0" encoding="UTF-8"?> <resource-lists xmlns="urn:ietf:params:xml:ns:resource-lists"> </resource-lists> From that point I'm a bit confused on how to troubleshoot this issue. How could I get more log from curl ?