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Continue to ChatWindows Phone 8.1 starts showing up in server logs https://plusdigit.com/2013/06/05/windows-phone-8-1-starts-showing-up-in-server-logs/
Windows Phone 8.1 starts showing up in server logs https://plusdigit.com/2013/06/05/windows-phone-8-1-starts-showing-up-in-server-logs/