Not until I was putting the darn thing back in the box did I see the sticker on the box. This module is compatible with 8, count 'em, 8 phones. The Xircom website does not list them when you click for the listing (it takes you to their 56k modem module page instead) and the Amazon site simply says that it is compable with Nokia phones.According to the sticker on the box: "For Nokia Handsets. This model is compatible with the following handsets: Nokia 6110, Nokia 6130, Nokia 6150, Nokia 6190, Nokia 5110, Nokia 5130, Nokia 5150, Nokia 5190"With all the different mobile phones out there, why any company would make a product that was compatible with only 8 of them is the ring of a poor business plan.