Two step database interrogation for supporting the implementation of a fall-back at call set-up
US7668551B2 · kind B2 · utility
0Cited by
7References
9Claims
0Family size
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Key dates
| Filing date | Dec 6, 2003 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Jul 15, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/329
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to methods and devices that enable to request more than one service during call set-up. To this end a new indicator is introduced into a request message sent to a database storing subscriber data, for indicating that at least one further request message is sent and a response indicator that a database is adapted to handle said indicator. Furthermore a set of rules is defined how different responses from the database are processed to enable said request.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.