What's the difference between Skype free and Skype for Business?
Features
Free Skype
Skype for Business
For
Home, It is great for smaller businesses of up to 20 employees.
Business, provides enterprise grade-security, allows you to manage employee accounts.
Maximum number of users
1
300
Share photos, videos and files
Up to 300 MB
File storage and sharing with 1 TB of OneDrive storage
HD video calling
HD one to one or group video calling - now with call reactions