I found that in: kamctl db show presentity Is the presence information of the users, but how can I errase such entry? of a user? And how can I define only one entry in that database by user? I use this code, when I receive a publish but this adds a new entry every time. if(is_method("PUBLISH")) { if($hdr(Sender)!= NULL) handle_publish("$hdr(Sender)"); else handle_publish(); t_release(); }