Alcatel Unleashed

Hi
I have a lote of Alcatel phones 4039 / 8039 / 8029 / 4029 .
I want to use Bluetooth headset for these models . could you contribute me ?
The 3.5mm jack used in these phone is a general port like a ordinary devices ,for instance can i use simple jack 3.5 to Bluetooth convertor?

Why not. You can use this jack for wired headset. Bluetooth headset with converter - from set point of view - the same.