froob:I had a play around with my HG659 this evening, and it was reasonably straight forward to get it to act just as an ATA sitting behind my third party router.
To do this, I disabled VLAN tagging on the WAN, removed all connections from it other than the phone service, then connected it to the network via WAN. It also makes sense to disable wireless if you're using it this way.
Thanks will give this a crack tonight, will it not connect the sip over the lan?