Default [Q] pressy app -calls not answered through speaker


I've ordered the wannabe "pressy" from dealextreme. link
but it isnt working great:

when someone calls me, or I call someone, the sound is playing throught the "headphones", but i dont have headphones plugged in, but my phone thinks the pressy is a headphone.

is there a app that forces the phone to play my sound throught the speaker?
and not the handsfree speaker, but the normal speaker ment for calling.

I've installed this app to control my pressy. (its english)