Signaling method for internet telephony
US6937597B1 · kind B1 · utility
207Cited by
17References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1999 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | Feb 26, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/561
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for creating, modifying, and terminating connections between Internet end systems, particularly, although not exclusively, for Internet telephony communication. The method relies on several request messages sent between a client and a server and the response messages sent back in response. Each request and response message may contain one or more header fields which modify or more uniquely link the messages with a given connection. On this basis, advanced telephony services, such as call forwarding, call transferring, and multiparty conferencing are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.