ADAC auto-configures untagpvidonly when a detected device is attached.
In the Cisco world you would have have the data VLAN access and the voice vlan trunk - same scenario.
So, for a manual VOIP config, you want untag PVID only enabled, VLAN 11 is the PVID, and 17 would be a tagged VLAN on top of that. Your DHCP parameters will let the phone know to use tagging and the tagged VLAN is 17.
TankII