Abstract: In a communication system network, the central controller may more efficient respond to group regrouping requests in the following manner. Once a console generates a dynamic group regrouping request which requests the regrouping of a set of communication groups into a super group, the central controller determines, for each communication system, whether at least one of the set of communication groups is registered in that communication system. When at least one of the set of communication groups is registered in the communication system, the central controller groups the at least one of the set of communication groups into a local super communication group. Having done this, the central controller then generates super communication group information and transmits it to the communication systems but only that portion that pertains to the local super communication group.