A method (300) for allocating mobile station resources. The method can include receiving a message (120) over a wireless communications network (110) from an authorized user requesting reservation of communication resources on the mobile station (105), and automatically reserving the mobile station communication resources in accordance with the request. Receiving the message over the wireless communications network can include receiving the message on a slave mobile station. The message can be received from a master mobile station (115). In one arrangement the message can include a mobile station calendar entry. The calendar entry can be received in response to initiating a call on the mobile station. The call can be, for example, a selective dynamic group (SDG) call.