System and method for enhanced origination services for toll free telephone calls
US7242759B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2003 |
| Grant date | Jul 10, 2007 |
| Priority date | — |
| Expiry date | Jan 22, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13376
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Enhanced Origination Services (EOS) for Toll Free (TF) telephone calls consists of uploading instructions to the SMS/800 National Database, which instructions are subsequently downloaded by Signal Control Points (SCPs) in the United States for the routing of TF telephone calls. When a caller dials a TF number, a communication switching device queries the SCP serving the caller's LATA and routes the call according to the EOS instructions for that TF number. EOS instructions route the call to a POTS number in the originating LATA using an intraLATA Carrier Identification Code. The POTS number is connected to a private gateway, which utilizes the Dialed Number Identification Service (DNIS) of the POTS number to perform a translation function, which may replace the received DNIS with the DNIS of the originally dialed TF number. The call is routed over the private network using the private network owner's database for routing instructions for the specific TF number. The call is routed through a dedicated connection to a facilities-based carrier or called party or through a switched connection to an egress SSP or local CO.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.