I think I can voice dial to my not so smart phone using the SMH-10. I occasionally hit wrong buttons and it wants me to say something through the phone interface (bluetooth connected). Never tried it for real though. You may want to go to Sena's forum site and ask the question or do a search over there.
I upgraded the OS to gingerbread (Android 2.3) last night. Let me see if I can figure something out now. Unblieveable ! a smartphone that cannot voice dail. My girzzled old Motorola Razr used to be able to do that!
I knew I will eventually outsmart the thing. Once I upgraded to Gingerbread (Android 2.3), google search came with it. And it responds just fine to voice command via bluetooth. Tested it out - all is good now.