Symptoms
Consider the following scenario:
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Microsoft Lync Server 2013 is integrated with Exchange Unified Messaging (UM). Both User A and User B are UM-enabled.
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User A sends User B an email message that contains Japanese characters in the subject.
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User B receives the email message, and then moves the mouse point over User A.
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User B makes a call to User A from the drop-down list next to the phone icon.
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User A doesn't answer the call and receives a missed call notification email message.
In this scenario, Japanese characters in the subject line of the missed call notification email message are garbled.
Cause
This issue occurs because the user notification XML file that is sent by Lync Server is encoded by using US-ASCII instead of UTF8.
Resolution
To fix this issue, install the August 2016 cumulative update 5.0.8308.965 for Lync Server 2013.
