Hi, I was written to this list one month ago about a strange compatible problem between Bluetooth dongle of CSR chipset with HCI Rev: 0xc5c and Bluez. The phenomena were that the eSCO connection can be made without any problem, but I received all zero for voice data. After some tests with several USB Dongles of CSR chipset, I found that if I turned off eSCO, I am able to get real voice data. The strange thing is that I used a host with Bluez and CSR dongle to test the eSCO connection with Blackberry 8310 curve, which Blackberry has the CSR chipset and HCI Rev: 0xc5c, the voice data worked without problem. However if I use two hosts with CSR dongles and Bluez at the both ends, the eSCO connection keeps receiving zero for voice data. This problem exists with all CSR USB dongles I tried including a Bluetooth 2.1 dongle. If I turn off eSCO mode, this problem will go away. Does any one have clue why the eSCO connection will receive all zero if the both side of eSCO connection are using Bluez and CSR chipset? How can eSCO connection not compatible between USB dongles with the same CSR chipset and firmware? Thanks, Cooper -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html