dlg_id(long) callid(string) from_uri(string) from_tag(string) to_uri(string) to_tag(string) mangled_from_uri(string,null) mangled_to_uri(string,null) caller_cseq(string) callee_cseq(string) caller_ping_cseq(int) callee_ping_cseq(int) caller_route_set(string,null) callee_route_set(string,null) caller_contact(string,null) callee_contact(string,null) caller_sock(string) callee_sock(string) state(int) start_time(int) timeout(int) vars(blob,null) profiles(string,null) script_flags(int) module_flags(int) flags(int) rt_on_answer(string,null) rt_on_timeout(string,null) rt_on_hangup(string,null) 
