LG VX-6100

I have not been able to get an answer to this question. On my Samsung a530, using a headset with an answer/end button, I can touch the button and trigger the phone into voicedial mode. I know the a670 does this as well. This is an important feature to me as I have a Jabra 110/220 bluetooth/adapter set and can touch the button, voice dial or answer the phone without ever touching the phone. It can even be in your pocket. I am looking at the lg 6100 vs the Samsung a670, but from everything I read about the LG, you have to either open the phone, or press the side button to trigger the voicedial. Does anyone know if you can trigger the 6100 into voicedial, or answer the phone using a headset answer/end button?

Thanks!