For Skype for Business Online organizations, you can use the Remote PowerShell in Office 365 to enable your Skype for Business users to use the Skype for Business client or the Skype for Business (Lync) client user interface. The default setting is for users to use the Skype for Business client user interface.
Yes you do - all of it, but under most circumstances, not until after you graduate college (or leave school for other reasons). Under normal circumstances when you graduate or drop below a certain # of units of attendance, you will be expected to begin paying back your student loan 6 months later. For subsidized student loans, this is when the interest will start accruing as well.
Paying back the loan. A student begins repayment on a Perkins loan after ceasing at least half-time enrollment and after a nine-month grace period. The borrower has up to 10 years to repay the loan. Perkins loans do not have different repayment plan options. The borrower repays the school that loaned the money, or its loan servicing agent. The minimum payment is $40 per month.