Assume that you make a call by using a telephone that is running Microsoft Lync 2010 Phone Edition for Aastra 6721ip and Aastra 6725ip, and you press the OK button. Or, you press the Select button during a call that you make by using a telephone that is running Lync 2010 Phone Edition for Polycom CX500, Polycom CX600 and Polycom CX3000. In this situation, the call disconnects unexpectedly.
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