[SR-Users] presence_xml and xpath

Hi, I'm having troubles fetching an xpath from an xml document using presence_xml, so I probably do something wrong (using kamailio 3.0.x): $xml(x=>doc) = '<?xml version="1.0" encoding="utf-8"?><presence xmlns="urn:ietf:params:xml:ns:pidf" entity="sip:test@mydomain.com"><tuple id="86ae65b7-42de-4399-b635-295caad13aac"><status><basic>none</basic></status></tuple></presence>'; xlog("L_INFO", "all=$xml(x=>doc)\n"); -> prints the whole document, which is ok xlog("L_INFO", "tmp1=$xml(x=>xpath:/)\n"); -> also prints the whole document (including the xml tag in the beginning, not sure if this is ok) xlog("L_INFO", "tmp2=$xml(x=>xpath:/presence)\n"); -> prints an empty string How is this actually supposed to work? What I'd like to do in the end is extracting for example the "none" from the "basic"-tag by specifying "xpath:/presence/tuple/status/basic", which also returns an empty string now, also when appended with "/text()". Thanks a lot, Andreas