VoIP call routing information registry including hash access mechanism
US8072967B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2007 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Jul 16, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M7/0075
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A VoIP call routing information registry including a hash access mechanism. In particular implementations, a method includes receiving a telephone number; computing a hash of the telephone number; accessing a registry wherein the registry comprises a plurality of entries, and wherein each entry comprises a hash of a telephone number and data associated with that telephone number, or a prefix and data associated with that prefix; searching the registry for a matching entry; and until a matching entry is found or the telephone number has been stripped down to a minimum number of digits, stripping the last digit of the telephone number, re-computing a hash of the stripped-down telephone number, and re-searching the registry for a matching entry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.