Method for providing enhanced directory assistance upon command using out-of-band signaling
US6628772B1 · kind B1 · utility
18Cited by
25References
76Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1999 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Oct 13, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q3/72
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A user calls a directory assistance service provider to search for a desired telephone number and be connected to a party at the desired number. In one such connection, the user is afforded enhanced directory assistance upon a user command in the form of an out-of-band signaling message, e.g., SS7 signaling message. For example, the user may be afforded further operator assistance by pushing on the user telephone a predetermined key (e.g., “*” key), which is detectable by the directory assistance service provider as an SS7 signaling message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.