Method and system for connecting a media stream, and method and system for detecting a connectivity
US7885278B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 29, 2009 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Feb 5, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/42017
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This invention discloses a method for connecting a media stream, which includes: transmitting, by a media gateway in a private network, a connecting message to an external network device through a network address translation device; the connecting message is used for generating a new address mapping, which is used for a subsequent media stream to pass through the network address translation device, in the network address translation device when there is no address mapping available in the network address translation device; and the connecting message is used for keeping alive an address mapping when the address mapping is already available in the network address translation device. The invention further discloses a system for connecting a media stream, two methods for detecting connectivity, and a system for detecting connectivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.