i have some bluetooth headphones (jbl) that are ipod touch compatible and work great. i also have a switcheasy thumbtacks mic (also ipod touch compatible and works great). the problem is that i have thus far been unable to use them at the same time. when i have tried to make a voip call on fring using the bluetooth headphones to listen and the thumbtacks mic to speak i've been unsuccessful. the mic has continued to work but i cannot hear through the bluetooth headphones while the mic is in use. any ideas as to why this doesn't work? is it a fring issue? an ipod issue? does whatever is plugged into the headphone jack override everything else?