Telecommunication relay service assistance for incoming calls
US8204179B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2008 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Apr 20, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/56
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method is provided in a telecommunications network for clandestinely providing a transmission relay service (TRS) to a called party (30). The method includes: receiving a first call from a calling party (10), the first call being received at a network node (40) serving a called party (30) for which the first call is intended; detecting the called party (30) answering the first call; and, determining whether or not to invoke a feature (44) supported by the network node (40). If it is determined that the feature (44) is to be invoked, then the method further includes: reserving a bridge; placing a second call to a relay center (50) supporting the TRS; obtaining an acknowledgement from the relay center (50) that an operator (52) at the relay center (50) is ready to participate in the first call; and, in response to obtaining the acknowledgement, completing the reserved bridge between the calling party (10) and the relay center (50), and establishing a TRS link between the relay center (50) and the called party (30).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.