Office 365 ProPlus or Skype for Business Online Standalone Plan 2

If you have already purchased Office 365 ProPlus or Skype for Business Online Standalone Plan 2, here are the add-on licenses you need to buy to get more Skype for Business features.

Important

Although Audio Conferencing, Phone System and Calling Plans can be purchased with Skype for Business Online Plan 2 to enable voice calling features, we recommend that you evaluate an Enterprise E5 plan to see if it is more cost effective.

To add this feature
Here's what you need to buy
Audio Conferencing
Buy 1 Audio Conferencing license for each person who is going to schedule or host a dial-in meeting. Attendees do not need licenses.
Audio Conferencing add-on
Once you buy the license, Microsoft will be your audio conferencing provider.
Toll-free numbers for dial-in access to your conferences, and the ability to dial out from a conference to add someone by calling any telephone number in the world
Communications Credits
Phone System
1. Switch to a different Office 365 for business plan. If you have Office 365 ProPlus, or Skype for Business Online Standalone Plan 2 we recommend upgrading your plan to an Enterprise E5 plan to get cloud voice features. If you upgrade to an Enterprise E1 or E3 plan, you'll see the option to buy the Phone System add-on.
2. Phone System add-on
3. Calling Plans: buy a Calling Plan from Office 365.
Or, use the telephone service from your existing provider.
Calling Plans
1. Switch to a different Office 365 for business plan.
2. Phone System add-on
3. Calling Plan: you can only buy this after you buy the Phone System add-on.