| abstract |
A community emergency response service system is provided with three types of destinations to which emergency calls may be routed. These include public safety answering points (PSAPs), switch directory numbers and public switching telephone network directory numbers. A last chance routing system is effective upon failure of the system to route an incoming one of such emergency calls to one of such three types of destinations. The last chance routing facility performs a linear search of all PSAPs within such system to determine whether any of such PSAPs has been inspected for availability to handle such emergency call. When such linear search identifies a PSAP which has not previously been inspected with respect to its availability to handle such emergency call, a determination is made as to whether such PSAP is currently available. Such determination includes determining whether such PSAP is currently at its call capacity. That call capacity is determined based upon a call capacity depth established for each workstation at such answering point. The call capacity limit is obtained by multiplying such call capacity depth times the current number of workstations that are active at such PSAP. |