Lucent Technologies Inc.

Elvis Hernandez

Jac P Dowens

A system and method are disclosed for recognizing and routing telephone call activity involving a hearing or speech impaired person. A caller places a local, intra-LATA, or inter-LATA telephone call by adding a three digit prefix to a called party number (CPN); the prefix identifies the call as one in need of routing to an Operator Services for the Deaf (OSD) or Tele-communications Relay Services (TRS) center. The call is first routed to a switching network where a query is sent to a Universal Subscriber Data Structure database using the caller's Automatic Number Identification (ANI) and the CPN of the called party. The database responds with the caller's and the called party's profiles. Thereafter, the call is routed to an adjunct which connects the call to an appropriate OSD or TRS center, whereupon the conversation can be relayed between the hearing or speech impaired person and the voice party. During this time, the adjunct can monitor a call for a particular subscriber's feature interaction, and can route the call to an appropriate switch in the network based upon the feature invoked by that party. A second and third database connected to the adjunct can verify feature subscriptions and perform calling card validation, respectively.

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Union City, NJ, United States of America

Elvis Hernandez