Can you set the iPhone to default to iphone instead of headset for dialing?

[markw10]

I just got a bluetooth headset for my iPhone. I like how when calling it prompts me to dial via iphone, headset, or speaker. It defaults to headset though and the majority of the time I use the iPhone itself instead of the headset. Is there a way of changing this default?

[mrmacbook]

I don't have a bluetooth headset, but I don't think that the iphone has voice activated dialing (is that what you are asking?) (i.e. "Call Jill", it dials Jill's number)?