Using android device as a bluetooth car handsfree kit

[nirklir]

Hello to all,

I'm new to the android world ,

I just got the archos 70 (android 2.2), and i need your help,

I going to use the archos mainly in my car , i have a GPS reciver and i use it with waze,
I want to get more out of it, i have an old nokia phone (from work) ,
it has a bad speaker and i was wondering if i can use the archos as a handsfree device,
that is, connect to it via bluetooth and answer/hang/talk via archos.
Do you have any idea if there an app out there to do so?

thanks,
nir