Glad to hear you persevered with the 10V. I had similar excitement getting mine up and running

. Now it's all working I'm very pleased with it. I trust you are too? I think the call quality's excellent.
My view is BT has released this product before they're ready to support it. I don't know what you thought of their telephone support but I spoke to quite a few of their "techies" who knew less about the product than me!
