...
Start Lync by tapping the icon:
Lync needs access to your contacts so you must give it an OK:
Type your e-mail address in the Sign-in Address field, and give your password. Then, before trying to sign in, tap Show Advanced Options:
Type your Metropolia user name in the User Name field. You may also want see the sign-in status options. Tap Sign In As:
You can decide whether you sign in as Available, Busy, or using some other status. Move back to the sign-in windows by clicking the arrow on the left in the blue bar at the top:
When back in the sign-in window, tap Sign In.
...
When you are ready tap Done at the upper right corner:
Lync is open. Tap Favorites and Other Contacts to see your list of contacts.
...