Packet telephony gateway for hearing impaired relay services
US6625259B1 · kind B1 · utility
34Cited by
3References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2000 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Mar 29, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2201/40
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are provided for relaying text between a hearing impaired person and a third party through the public switched telephone network. The method includes the steps of converting the text between a multifrequency textual format on the public switched telephone network and a packet format on a local area network and exchanging the text with the hearing impaired person through the local area network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.