Inbound and outbound calls via bluetooth

Hi folks

I have some questions about bluetooth and asterisk.
For example someone is calling me to my desk telephone, but I’m in a coffee break. So if I do not answer the phone within 4 rings asterisk to redirect the call to my cell phone via bluetooth.

And for the other direction, can I make outgoing calls from my cell via bluetooth conenction to my asterisk?

Can I do this with chan_cellphone?