How to get rid of skype for business in office 365

HOW TO GET RID OF SKYPE FOR BUSINESS IN OFFICE 365 UPDATE

Until external contacts remove and update the old contact, the contact object for the user is displayed as either Presence Unknown or Offline.

External contacts (this includes other federated Lync organizations), Windows Live users, and MSN users must be notified about the change to the user's SIP address. Communicate changes to external contacts in Skype for Business Online contact lists.If these meetings aren't rescheduled, meeting participants may receive an error message when they try to join any Skype for Business Online conferences that are scheduled by that user. Because of the way that the Skype for Business Online service generates meeting URLs, any meetings that were scheduled by using the old Skype for Business Online SIP address must be rescheduled. Reschedule Skype for Business Online meetings.ProcedureДЄfter the user ID of a Skype for Business Online user is updated, there are some actions that the user must take to make sure that the service continues to work without any interruptions. A mismatch between a user ID and the user's SIP address may cause confusion for the Skype for Business Online user during sign in. Otherwise, the two values would be mismatched. Previously, when a user's Office 365 sign-in address was changed, the IT administrator had to update the user's SIP address separately to match the new Office 365 sign-in address. When a user's Office 365 sign-in address (also known as the User Principal Name, UPN, or user ID) is changed, the Skype for Business Online (formerly Lync Online) SIP address for the user is automatically synchronized.

How to get rid of skype for business in office 365