| 摘要 |
An emergency call load handling system in a call network has an interactive voice response (IVR) unit (21) associated with a switching apparatus (19) to which calls may be diverted in special conditions, such as during emergencies or disasters when calls to certain destinations may suddenly increase dramatically. Calls are diverted depending on call destination and/or pre-programmed triggers, such as a call load threshold experienced by the switching apparatus (19) or for a specific destination. The IVR unit (21) in some cases negotiates with callers for priority to further route calls, and may play pre-recorded messages. Low priority calls are typically disposed of to fire stations, hospitals, government emergency handling centers and the like. In some cases rules may be amended in real time by use of data network connections between call centers and the SCPs involved.
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