Office 365 (Skype for Business) - Adding a Contact
Adding contacts in Skype for Business causes them to be displayed within the IM application and allows you to quickly initiate instant messages and video calls with them. To add a person as a Skype for Business contact, follow the steps below.
1. From your Skype for Business client, type the name of the person you would like to add as a contact in the search box. As you type their name, results will auto-populate.
2. Right-click on the person you would like to add as a contact. From the menu that appears, select Add to Contacts List and then add him/her to the contact list you desire. The default contact list is Other Contacts.
3. The person will now appear under your contact list in Skype for Business.
If the person is not a UWM staff or student, you will be able to add them using their email address.
Merely type the email address into the search box.
When the correct person appears in the list, right click on their name and choose to either add them to your contact list or to your Favorites.
Note: If you are unable to add them to your contact list, it is probable that their organization does not allow open communication through Skype with outside organizations.
Not everyone you will want to chat with will be members of the UWM community. However, if their configurations are set appropriately, you will be able to add them as a Skype for Business contact, and conduct communications through the Skype for Business client as you would with any other contact in your list.
The external user must be an Office 365 user, with access to Skype for Business, and their organization must allow connections to external users. Once you have determined that these conditions are met, you would add the person as you would any other Skype for Business contact and use the tool as usual.
More information about adding users can be found here