[Asterisk-Users] Call Forwarding with Account Code.. can it be done?

[Matt]

I want to allow my users to be able to
"Call Forward Unconditional"
"Call Forward Busy"
"Call Forward No Answer"

And curently I am doing this via my ATA and phone settings, however
this has the problem that when a call is forwarded it goes out without
an accountcode (Even though the ATA is forwarding the call), and hence
I can't track the call!

Can someone suggest a way to either fix this so that accountcodes go
into the CDRs when the ATA/phone forwards the call, or to do the three
forwarding types directly on asterisk?