Hi Peter, You have stated this before: "If you have a Bluetooth 1.2 scanning device, you will be able to use interlaced inquiry scan on it (HCI_write_inquiry_scan_type interlaced). This has the same effect. In fact, it works better than switching trains on the inquirer because inquiry is quite inefficient and losing frames on a particular train can have a big impact on the likelihood of finding a device. Of course, this requires the other end to co-operate, so there's not a lot you can do on the inquiring side." Can you explain it more and how can i use interlaced inquiry scan on a Bluetooth 1.2 scanning device (HCI_write_inquiry_scan_type interlaced). are there any online reference that i can refer to.? =) Regards, Shukri --------------------------------- Do you Yahoo!? Win 1 of 4,000 free domain names from Yahoo! Enter now.