I have a Treo650. I've programmed my voicemail directly into the Nav+, but I'm kinda thinking -- I wonder what would happen if I added the pause to my voicemail entry on the phone which is in my favorites?
No answer, but I have the same interest. I tried adding pause using "p", but the nav just recognizes that as "7" The is also no comma available. Sometimes comma works as a pause. I hate to say it's impossible, but I've tried many things.
I discovered commas work as pause on the Treo650. Since Voicemail is in my favorites, the RNS copies it from my phone and it's accessible via the thumbwheel so it should be problem solved (but I haven't tested it, but will tomorrow).