Method and system for providing enhanced caller identification information for subscribers that interface via private trunk groups
US6807267B2 · kind B2 · utility
63Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2001 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Jul 27, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2242/22
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method deliver audible caller identification information when standard Caller ID information is invalid or can not be provided, even when the called party connects to the network by private trunk group facilities. In one disclosed embodiment, a trunk group trigger associated with the called communication station is encountered, launching a termination attempt query. If standard caller identification information can not be provided for the calling party, the call will be routed to a privacy service to obtain the audible caller identification information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.