What is the IOS ver?

If I undestand correctly, you want the AA to see the fax tones, and direct the call to a fax that is hanging off of a ATA. Is that correct?You're dealing with two different problems. One, the fax/call routing. The other is the issue with switching...

Adding your CME box as a H.323 gateway in CCM will be the easiest way to manage that connection.