<p>got a csr 4.0 dongle and a bose series 2 headset, installed linphone, talked happily for 34min of scottfree and wiresfree googlevoicetalk, suddenly i couldn't hear anymore, other party said there was some silence then could hear me again, i could see her voice on linphone's meter but hear nothing, then i got some dialog requesting i (re?)authorize some bluetooth something, too bad i didn't copy that down at the time. apt-get upgraded, rebooted, tried another partition that wasn't upgraded (both saucy), tried precise, never works anymore, like that it did work once was some freak accident. when it worked, the headset showed up in pavucontrol. now both the bose and another headset (bt-15k4) can pair and be selected for headset service, but do not show up in pavucontrol, nor work. both work on my phone. google reveals a vast wasteland of dissimilar and similar problems. is there hope? i dunno. looks like a fulltime monthlong project to weed through trying the morass of suggestions from the similarish reports google reveals. at first i had presumed the bose has a defect, and obtained permission to return it. now i rather suspect the bose is more likely fine, but it looks like i can only even try it with paid minutes. truly it looks like bluetooth remains the privy of paid minutes, and i am wiretied for free voicetalk. tho i'm open to suggestions.</p>