What does MSC Call#1 mean??

[radyland]

<p><a href=“http://talk.collegeconfidential.com/carnegie-mellon-university/479201-msc-call-1-a.html[/url]”>http://talk.collegeconfidential.com/carnegie-mellon-university/479201-msc-call-1-a.html&lt;/a&gt;&lt;/p&gt;