Handling of dialled digits in a wireless telecommunications system
US6775538B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2001 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Oct 5, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/724
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention provides a digit handling system and digit handling method for a subscriber terminal of a wireless telecommunications system, the subscriber terminal being arranged to have an item of telecommunications equipment connected thereto and being connectable to a central terminal of the wireless telecommunications system via a radio resource to enable a call to be routed between the item of telecommunications equipment and an exchange coupled to the central terminal. The digit handling system comprises a detector for detecting when the item of telecommunications equipment enters an off-hook state, a dial tone generator for generating a fake dial tone to the item of telecommunications equipment upon detection of the off-hook state, and a radio manager, responsive to detection of the off-hook state, for seeking acquisition of a communication channel of the radio resource over which to pass call data. Further, a switching element is provided for controlling the routing of digits through the subscriber terminal, the switching element being arranged to pass to a storage digits received from the item of telecommunications equipment following the detection of the off-hook …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.