Enhanced voice services load balancing
 Enhanced voice services (EVS) interactively communicate with a caller so as to provide audio prompting and selection of the final termination of a call. The present improvement includes load balancing, wherein degraded service of audio response units (ARUs) is detected. With load balancing, individual EVS ARU nodes are lumped into groups, where a group is a set of two or more functionally identical EVS audio response units (ARUs) that all support the same EVS customer applications. An inbound call for a given EVS application can be routed, based on a lookup at the data access point (DAP), to any ARU in the group. With the operating level of each ARU in a particular group being known, the percent allocations for each ARU are determined and an update is made at the DAP to route incoming calls to each ARU in the group according to the specified percentages. The load balancing process operates with a set of predefined rules for determining ARU statuses and call allocations, and also has the ability to actually throttle back calls if multiple nodes in an ARU group are degraded. 
MCI WORLDCOM, Inc.
H H
H04M H04M
inventional inventional
Judy A. Allen Jeffrey W. Phillip D.
Moldenhauer Holmes Campbell Crable