SCO Connection

Hi,

I'm writing an application that emulates a BT Headset and I'm using a Siemens S55 and a Sitecom USB BT Adapter. What I'm doing is the following:
Send a dial command to the phone to dial a number
Send an AT+CKPD=200 to the phone to request an audio link
Create a socket to listen for the SCO conncetion
Accept the connection when it arrives.

My problem is that after I accept the SCO connection no data is transmitted along the connection. The phone recognises that a "headset" is in use, but if I try to read from the connection I just get -1 returned as the num of bytes read.

I checked my hciconfig revision and it shows that the SCO mapping is set to HCI.

Do I need to acknowledge the connection after I accept it? Is the phone waiting for some "ready to receive" message or something?

Thanks.

Steven

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