Connecting two Trixboxes

Hi,
Although having read several tutorials about connecting 2 Trixboxes, I can’t get it to work.

On boxA (10.0.0.3):

Trunk name: boxA-peer
allow=ulaw
disallow=all
host=10.0.0.4
secret=123123
type=peer
username=boxB-user

User context: boxA-user
allow=ulaw
context=from-trunk
disallow=all
host=10.0.0.4
secret=123123
type=user

I have also setup an outbound route with extension 7X with trunk sequence IAX2/boxA-peer
I have changed the username and ip addresses on box b.
I keep getting “Person you are calling is unavailable…”

Any help or debugging tips are greatly appreciated.