We have a shipment of the AG188n's arriving this week for those customers waiting stock. For those who haven't come across the Atcom AG188n before I've stumbled on a  pretty comprehensive review below that you may find interesting?

http://michigantelephone.wordpress.com/2009/05/27/review-of-atcom-ag-188n-iaxsip-ata-voip-adapter-part-1-the-unboxing/

http://michigantelephone.wordpress.com/2009/05/28/review-of-atcom-ag-188n-iaxsip-ata-voip-adapter-%E2%80%93-part-2-%E2%80%93-initial-setup-using-iax/