I went back to the sys value of 0 (I think that was the default) and did a soft reset. I use the Plantronics Voyager 510. During the first few hours, Bluetooth disconnected a few times but would then reconnect less than a minute later without me doing anything. With 0 or 2, I don't recall that bluetooth has ever failed me during a call although with the 2 setting, it would often disconnect soon after a call. With the value set at 2, the phone dialing screen would show the headphone icon, indicating that bluetooth was active, but as soon as I placed a call, the icon would dissappear and bluetooth would not be active. Today, value of 0 seems better.
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