If the calls were canceled before a 183 or a 200 occurred, then there is no media whatsoever established.  This would be normal behavior to not have a read or write codec set this case.  If a 183 occurred and then a cancel, then you'd have only a read codec variable set I think.

Yossi Neiman


 On 11/18/2013 09:21 PM, FERNANDO VILLARROEL wrote:
Dear All.

I am trying to use xml_cdr for save the cdr in backend (postgresql).

My problem is only the answered calls have the read_codec and write_codec codec variables.

Any idea why the cancel calls have not this variables on xml_cdr.

I appreciate some help.



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