The digital matrix expands that premise by creating zones or group calls. Stations in each group are predefined at the terminal. Although one group call may page all stations, another one may page only those stations in the tape room. A variation on paging uses a visual tally to predefined stations, while the caller's audio defaults to an overhead speaker. The listener, hearing the page, returns to the station, sees the identity of the caller, selects the caller's audio and continues the conversation privately.
Subsequent pages continue through the overhead speaker.
In order for the intercom to keep your crew and talent in touch, you must determine your needs, wishes and budget limitations. Today's intercom systems offer various architectiures and features. In analyzing the forms of communications for a system, it is important to note that there are numerous quantities of fixed assets, and under normal circumstances a system's standard configuration will prove sufficient. Although analog 2-wire intercoms will continue to carry basic communications for many production facilities, digitally controlled matrix systems offer a range of flexible alternatives. By integrating various forms of communications features, the matrix system can make the difference between confusion and a successful production session.