Patent · US Active

Method for changing between a packet-oriented PTT session and a circuit-oriented telephone connection between at least two radio communication appliances, associated radio communication appliance, network component and radio communication system

US7522584B2 · kind B2 · utility

5Cited by

0References

22Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Olaf Kautz · Berlin, DE
Josef Laumen · Hildesheim, DE
Norbert Schwagmann · Braunschweig, DE

Key dates

Filing date	Feb 25, 2004
Grant date	Apr 21, 2009
Priority date	—
Expiry date	Oct 10, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH04W76/10
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Provided are a method for changing between a packet-oriented PTT session and a circuit-oriented telephone connection between at least two radio communication appliances, an associated radio communication appliance, a network component and a radio communication system. To change between a packet-oriented PTT session and a circuit-oriented telephone connection as selectable communication connections between at least one first connected radio communication appliance and at least one second connected radio communication appliance in a radio communication system, a first of these two communication connections is selected and set up by at least one connected radio communication appliance and/or by at least one control unit in the radio network in the radio communication system. A change is made from this first communication connection, which has been set up, to the second communication connection under the control of a radio communication appliance which is connected to the first communication connection and/or under the control of that control unit in the radio network in the radio communication system which is connected to the first communication connection by activating the second com…

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