What log you are willing to take from asterisk, is it CDR log or logs found in /var/log/asterisk/ or something else?.
I don't understand what do you mean by expect_out, please give more clarity on it.
Define your problem clearly to get suggestions/guidelines quickly.
Vivek
-- In accordance with the prarabdha of each, the One whose function it is to ordain makes each to act. What will not happen will never happen, whatever effort one may put forth. And what will happen will not fail to happen, however much one may seek to prevent it. This is certain. The part of wisdom therefore is to stay quiet.