Hi, I made some progress: 1) my phone can now recognize my pc as an headset 2) I'm able to pair the two device 3) I advertise the hsp service with the attacched pybluez script 4) the phone can connect to the pc and the output of the script is: Waiting for connection on RFCOMM 1 Accepted connection ('00:1E:96:00:07:D2', 1) received OK so the connection is successfull and the phone answer ok to AT+CKPD 5) I run bluetoothd -n -d and I see some errors like this: bluetoothd[5938]: No matching connection found for handle 1 6) with hcidump I see sco data: > SCO data: handle 1 flags 0x00 dlen 48 and I think this sco data cause the error "No matching connection found for handle 1" so I think there is something wrong in the sco link estabilishment, can you please give my some hints? Is there a way to use a pc as an headset using bluez? thanks Nicola