Outbound IVR campaign do not recognize answering machine

[Elizabeth_GM]

Hi,

We are configuring an IVR campaigns but when contact does not answer the call and we go to CCDR Report it has Call result 1 Customer answers and is connected to an agent  and Call Status 3 Closed. Record is closed.

Do you know what could it be?

Thanks!

[Elizabeth_GM]

I follow this link!

http://docwiki.cisco.com/wiki/Answering_machine/Voice_Mail_is_not_detected,_it_is_marked_as_voice