[asterisk-dev] CDR inserting unanswered calls

[CDR]

I did set the variable unanswered = no in cdr.conf, rebooted, and I
still get cdr that has "NO ANSWER" in Disposition and 0 billsec. This
is SVN-branch-1.8-r357761M
cdr show status

Call Detail Record (CDR) settings
----------------------------------
  Logging:                    Enabled
  Mode:                       Simple
  Log unanswered calls:       No

* Registered Backends
  -------------------
    Adaptive ODBC

I do use in the dialplan resetCDR(w), but if there no connection,
nothing should be written.
Am I missing something??