In short our application need to open a SCO connection between a Serie 60 phone and a bluetooth headset to transmit audio data. The Serie 60 SDK allow application to open ACL connection like L2CAP and RFCOMM. The HCI command KHCIAddSCOConnIoctl return a THCIConnHandle in a THCIAddSCOConnectionBuf but there is no way in the SDK to use this value to send data in the SCO connection. How can we use this handle to send data in a SCO connection ? Is it possible to get acces to low SymbianOS System Call that manage this kind of connection ?

Thanks very much in advance,

Pierre