This issue occurs in the “Russian Standard Time (UTC+03:00) Moscow, St. Petersburg, Volgograd (RTZ2)" time zone when the date changes to the year 2015 in Microsoft Lync Phone Edition. When this issue occurs, Lync Phone Edition shows the time as, for example, 3 P.M. when the actual time is 2 P.M.
Resolution
To resolve this issue, install one of the following cumulative updates:
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May 2015 cumulative update for Lync Phone Edition for Aastra 6721ip and Aastra 6725ip telephones
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May 2015 cumulative update for Lync Phone Edition for HP 4110 and HP 4120
Note These cumulative updates create new Russian time zone entries and update the existing entries in Lync Phone Edition.
