Call centerHow many employers have had this situation arise?  An employee requests and receives FMLA leave.  While they are out, the employee’s supervisor needs to locate a document, find out the status of a project the employee was working on, or a crucial question comes up that only the employee on leave can answer.

According to

To what extent may an employer contact an employee on FMLA leave about work-related matters before that contact becomes, in effect, a denial of FMLA leave? 

"Fielding occasional calls about one’s job while on leave is a professional courtesy that does not abrogate or interfere with the exercise of an employee’s FMLA rights," according to