Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Reexamination Certificate
2011-03-01
2011-03-01
Corsaro, Nick (Department: 2617)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
C455S414100, C455S418000, C455S412100, C455S567000, C700S094000, C700S018000, C700S109000
Reexamination Certificate
active
07899086
ABSTRACT:
A method is provided for signaling a change from a first service to a second service during a call between a terminal device and a further terminal device over at least one communication network. When a change from the first service to the second service takes place during a call between the terminal device and the further terminal device, a network unit of the communication network, via which the terminal device is currently communicating to at least one further network unit, signals whether the change was initiated by the terminal device or by a network unit of the communication network.
REFERENCES:
patent: 6134434 (2000-10-01), Krishnamurthi et al.
patent: 2001/0038615 (2001-11-01), Chang
patent: 2005/0180338 (2005-08-01), Pirila et al.
patent: 2006/0135257 (2006-06-01), Nourry et al.
“Universal Mobile Telecommunications System (UMTS); Technical realization of Circuit Switched (CS) multimedia service; UDI/RDI fallback and service modification; Stage 2 (3GPP TS 23.172 version 6.1.0 Release 6); ETSI TS 123 172”; ETSI Standards, European Telecommunications Standards Institute, Sophia, Antipo, FR vol. 3-CN3, No. V610; Sep. 2004; XP014027515; ISSN: 0000-0001.
Corsaro Nick
Greenberg Laurence A.
Hua Quan M
Locher Ralph E.
Siemens Aktiengesellschaft
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