What Does Call Control Mean?
Call control is a function in a business telephone switch or PBX that routes telephone calls to the proper destination. Call control also maintains the connection between two endpoints of a call. It is one of the major categories of communications traffic in VoIP systems.
Techopedia Explains Call Control
Call control is a feature of PBX systems which determines where calls are routed and maintains the connections. For example, call control might detect when a call has ended, or can restart a call if it was terminated abruptly. Other phone services, such as call waiting, are implemented in the call control system. Because PBX systems must be reliable, writing the software for call control can be a lengthy process.
