id(int,auto) hash_entry(int) hash_id(int) callid(string) from_uri(string) from_tag(string) to_uri(string) to_tag(string) caller_cseq(string) callee_cseq(string) caller_route_set(string,null) callee_route_set(string,null) caller_contact(string) callee_contact(string) caller_sock(string) callee_sock(string) state(int) start_time(int) timeout(int) sflags(int) iflags(int) toroute_name(string,null) req_uri(string) xdata(string,null) 
