Without a doubt focus on enterprise phone conferences - instant minutes for a meeting and action points to follow up. You could even have a "hey notetaker - paul to write the report". The privacy issue you need to work on but that's the area I would focus on.
Privacy is definitely one of our priorities. We aim to be super transparent, but in general we think that privacy might be less of an issue for outbound (sales, recruiting, interviews). Perhaps there's a niche segment within enterprise phone conferences where privacy is less important and the value is immense?
It's not privacy they care about - it's confidentiality. I mean they are using other teleco services anyway, they jut trust those telcos. Find a way to build that trust.