Patent · US Active

Systems and methods for handoff of a mobile telephone call in a VOIP environment

US8223720B1 · kind B1 · utility

7Cited by

4References

16Claims

0Family size

Assignee

Vonage Network, LLC · US

Inventors

Tzahi Efrati · Hoboken, US
Baruch Sterman · Beer Sheva, IL
Yariv Trabelsi · Jerusalem, IL

Key dates

Filing date	Dec 13, 2011
Grant date	Jul 17, 2012
Priority date	—
Expiry date	Dec 13, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04L63/0823
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

When a mobile telephony device is conducting a voice over Internet protocol (VOIP) telephone call via a data network, and the mobile telephone device transitions from a first wireless data connection to a second wireless data connection, signaling between the mobile telephone device and a media relay inform the media relay how to address data packets bearing the media of the call after the transition has occurred. In some embodiments, the mobile telephone device establishes multiple simultaneous wireless data connections, and the mobile telephony device switches the media of the call between the wireless data connections depending on the quality of the wireless data connections.

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