[asterisk-users] how do I set callerid for incoming iax?

[sean darcy]

Using 1.6-rc8.

In iax.conf on the calling box, I have:

[iax-out]
.........
callerid = "sean" <447>

I even also put the same on called box.

But I can't seem to set the callerid:

exten =>_NXX,1,Answer()
exten =>_NXX,n,NoOp(${CALLERID(num)})


Answer("IAX2/iax-in-7", "") in new stack
  NoOp("IAX2/iax-in-7", "") in new stack

So how do I set callerid?

sean