Voice Command - Entune - "Select Phone" or "Connect Phone"

I'm curious if anyone knows how to switch connected bluetooth phones via voice command. In my 2010 Prius and in my 2011 Lexus, it was as easy as hitting the talk switch and then saying either "Select Phone" or "Connect Phone". Every time I've tried that with the Tacoma it tells me there are no programmed R&B stations

Aside from the Entune's sense of humor, it would be helpful to know how to switch phones while driving if the need arises. For example, when my work phone is paired and connected but I want to use my personal cell.

I did a search in the forum, and even asked the headunit for help, but no luck.

Thanks in advance.