API call that will list the meetings of employees that are assigned to a manager

Hi,
What is the API call that will list the meetings of employees that are assigned to a manager?  The manager will be logged in and when I use the API call:

http://[serverid]/api/xml?&action=report-my-meetings&principal-id=[##]

I always get the same results which is a list of the meetings for the manager.  If put the id of the employee, I still get the managers meetings.

I have looked through all of the API documentation and cannot find which call I could make to get the results that I want.  The documentation specifically says that report-my-meetings provides information about meetings that the logged in user is scheduled to attend.  So how do I get the information for the managers employees?

What is needed is the Name, Duration, and Start Time of all meetings that the employee is enrolled in who is assigned to the manager that is logged in.

Thanks for any help with this!