WASHINGTON, May 10 -- The Federal Labor Relations Authority issued the following decision (Case No. 0-AR-5921): * * * Before the Authority: Susan Tsui Grundmann, Chairman, and Colleen Duffy Kiko, Member I. Statement of the Case The Agency stopped paying four employees (the grievants) overtime for the time they spent answering work phone calls while in an on-call status. The Union grieved, claiming the Agency's refusal to pay the grievants violated the parties' collective bargaining agreement  more