A system and method for allocating service provider network resources for supporting dispatch multi-party calls is disclosed. In an embodiment of a method of the present invention, the method includes receiving a requirement at the service provider network for supporting a dispatch multi-party call having a projected number of participants. An amount of network resources required to support the projected number of participants is determined. A portion of the amount of network resources required to support the projected number of participants in the dispatch multi-party call is dedicated to the dispatch multi-party call in the service provider network. In an embodiment of a system of the present invention, the system includes a media server having resources for supporting a dispatch multi-party call having a projected number of participants in a service provider network. A resource manager is coupled to the media server and determines an amount of media server resources required to support the projected number of participants and dedicates a portion of the amount of media resources required to support the projected number of participants in the media server.