Consumer Skype accounts can be added to the contact list in Skype for Business. This allows you to communicate with Skype users while using Microsoft Skype for Business and vice-versa.
Microsoft Skype for Business supports connectivity with the consumer version of Skype (skype.com). This connectivity lets Skype for Business
users to add Skype contacts using their Contacts.
Consumer Skype users can also add Skype for Business users
to their contacts list.
Skype for Business and consumer Skype users will be able to communicate using instant messaging, see each other's presence, and initiate audio calls.
Instructions for adding a consumer Skype user to your Skype for Business contact list can be found at: https://support.office.com/en-us/article/Add-a-contact-in-Skype-for-Business-89338023-2adf-4f5c-90b6-f8b6f72fadd1.
If you use an email address and password to access services such as Microsoft OneDrive, the Microsoft Xbox LIVE online game service, or the Microsoft Outlook.com email (previously known as Hotmail or Windows Live Messenger), that is a.
To set up a Microsoft account, see the Microsoft account sign-up page at: https://account.microsoft.com/account