[A-Train]

The Curve will not discover the Plantronics 640 headset (in-the-ear style).

I have tried turning on the 640 as the Curve is in the middle of the attempt to discover BT devices (rather than the 640 being on before the attempt begins); trying to pair multiple times in a row, keeping the Curve and 640 at varying distances from each other, etc. Still no luck...

No other BT device is paired to the Curve. The Curve's BT settings have BT enabled and the "discoverable" option us turned on. "Headset" and "handsfree" are among the Services listed on the options page.

Any advice or tips to get the Curve and 640 to pair? Thank you.

[nef]

Not to be overly obvious, but you did place the headset into pairing mode right? It should be flashing blue the red when in pairing mode.

[A-Train]

Yes, the 640 was indeed in pairing mode...