Does NAV talk over the Bluetooth on phone calls?

I drove a Prius 3 Touring tonight but it was only a limited test drive so I didn't get to pair a phone and test it so I am hoping new owners can answer the questions below. I originally asked about these in another thread but it got buried quickly. I am hoping for better answers now that I can post in the Audio and Electronics forum.

1. Does the navigation talk over phone calls when you are on the phone using Bluetooth? This is a registered complaint with the NHTSA but hasn't been corrected yet that I am aware of.
2. Are there any useable voice commands for the NAV? "Suspend Guidance", "Resume Guidance" being the most important. This was taken away in the new NAV's with Entune for both Toyota and Lexus and hasn't returned yet. At least as of 2013 with our Lexus RX450h. Pretty sad when a 2006 Prius with 430 miles has a better NAV than a Lexus luxury SUV, LOL.

Ema is still running great <knock on wood> so I'm pushing her towards 500K but after seeing and driving the Gen IV I do have kind of an itch to get a new one. Unfortunately these, the Stormtrooper white cup holder area, the 106 limit on memory points and a few others are strikes against the Gen IV.

Happy driving,
Chris