I bought the bluetooth adapter. As soon as I plugged it in, I dial *28 trying to pair with my phone but I couldn't find the obi anywhere. After spending more than half hour, I gave up. Later that day I tried again and it worked. So far so good. Then I tried to make a phone call from my cell phone and the phone connected to the obi started ringing. I have to unplug the BT adapter. Anyone has similar experience? Or I wonder if the BT adapter is defective given the problem with pairing earlier.
This bug was reported at DSLR in 2013: http://www.dslreports.com/forum/r28754859-Obihai-ObiBT-configuration
If you're using the latest version of the firmware, it must not have been fixed yet.