1. Create a meeting that re-occurs.
2. Send invitations to invites.
3. Wait for the mail to Accept/Reject the meeting.

What happens

You get 3 options in the confirmation mail Accept/Decline/Tentative.User has to
accept/decline one by one.
 
What you would expect to happen

Since this is a recurrence meeting the invites may be in a position to attend
one or more instances and may not attend few.Expected is way to accept/decline 
the instances as whole, may be display of recurring dates in a calendar with
Accept/Decline option.