It uses BlueZ through to get HFP working following the
org.bluez.HandsfreeGateway and org.bluez.HandsfreeAgent from the BlueZ
You need the HFP suport into BlueZ and the new dbus 1.3 with fd-passing
Many thanks to Zhenhua Zhang <zhenhua.zhang(a)intel.com> for its prototype
on this code.
this patch has been applied to the oFono tree. Thanks.