Patent · US Expired

Devices, softwares and methods for rule based determination of attributes of called device for network telephone call setup

US7460518B1 · kind B1 · utility

3Cited by

5References

52Claims

0Family size

Assignee

Cisco Technology, Inc. · US

Inventors

Hussein Farouk Salama · Sunnyvale, US
Francois Le Faucheur · Valbonne, FR

Key dates

Filing date	Aug 31, 2001
Grant date	Dec 2, 2008
Priority date	—
Expiry date	Jul 3, 2024

Classification

Technology area (CPC H)Electricity
CPC primaryH04M7/0072
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

Devices, softwares and methods can establish an IP connection with each other through a network. Dynamic connection attributes of the called device are inferred locally by the calling device. These may include any one or more of type of codec, bandwidth, port number, and so on. A rule may be used for inference, expecting that the called device uses the same rule. Setup takes place without the calling device receiving this information explicitly by signaling. Plus setup may take place even though expected handshake signals might not be transmitted at all, due to differences in implementation, or even a difference in protocols.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.