I bought Bria because advertising was saying it was integrated with Outlook. My first disappointment was seeing that I have to purchase an add-on. Then, when I was purchasing Outlook add-on the web page said that the product was invalid. So, there is no Outlook integration.
Also, during a call, it does not recognize the contact because of the international code, which does not happen with any cellular phone.
The sad thing is that you can only realize it when you've already paid.
I think the best VoIP Client (works well with Fritz!Box 7270)