T-mobile Deutschland Gmbh

Deutschetelekom Ag

T-mobile International Ag

T-mobile International Ag & Co Kg

Matthias Britsch

Stephan Blicker

Georg Fuchs

Colin Hirsch

Andreas Florath

Norbert Esseling

Ralf Hager

René Bemmer

Jörg Rass

A computer cluster includes: a first compartment, further including a plurality of first physical nodes configured to provide first resources for a first infrastructural virtual instance and second resources for guest virtual instances; and a second compartment, further including a plurality of second physical nodes configured to provide third resources for a second infrastructural virtual instance and fourth resources for guest virtual instances. Each of the plurality of physical nodes further includes a mass storage device, the mass storage device further including: a partition provided for booting the physical node; a partition as part of resources assigned to an infrastructural virtual instance; and a partition as part of other resources. The first infrastructural virtual instance and the second infrastructural virtual instance are configured for monitoring each other.

Computer cluster and method for providing a disaster recovery functionality for a computer cluster

The invention relates to a method for securing IP connections with a combinatory connection of a communication network of a first network operator with a communication network of at least one second network operator using the Session Initiation Protocol, SIP. This method is based on the fact that portions of an SIP message, but at least the information necessary for the combinatory connection of the networks, is transmitted in encrypted form between a transmission channel of the first network operator and a reception channel of the second network operator.

Method for securing IP connections for network operator combinatory connections

A method and system for operating a push-to-talk communication between a PoC-group consisting of at least of one member of a first communication network and a PoC-group consisting of at least of one member of a second communication network, using a PoC application server in each communication network. Members of the PoC-group of the first network operator are connected with the members of the PoC-group of the second network operator, and the PoC application servers are synchronized to each other.

Push-to-talk interworking

A computer cluster includes: a first compartment, further including a plurality of first physical nodes configured to provide first resources for guest virtual instances, each of the plurality of first physical nodes further including a mass storage device, the mass storage device further including: a first partition provided for booting the first physical node; and a second partition as part of the first resources; and a second compartment, further including a plurality of second physical nodes configured to provide second resources for guest virtual instances, each of the plurality of second physical nodes further including a mass storage device, the mass storage device including: a third partition provided for booting the second physical node; and a fourth partition as part of the second resources. The first and the second physical nodes are further configured to provide third resources for a plurality of storage management processes.

An IP Multimedia Subsystem, IMS, for providing a service via a network to at least one subscriber, the system comprising: at least a first proxy function and a first server function for handling messages with a first protocol, a subscriber database connected via a first interface to the server function, at least a second proxy function and a second server function for handling messages with a second protocol, the second server functionally is connected via a second interface to the database.

IP multimedia subsystem (IMS) and method for routing an HTTP message via an IMS

The present invention relates to a method for transmitting user data via a dialed connection in a radio communication network, characterized in that the user data are transmitted as dedicated data packets upon controlled release. A dedicated push-to-talk domain is provided which is hosting push-to-talk service network nodes (PTT SNN) and application servers (AS).

Method and system for implementing a push-to-talk service in a mobile radio communication network of the GSM-type

The present invention relates to a method for application layer authentication of subscribers connected to the authenticating network domain by a 2G or 2.5G GPRS core network or a 3G UMTS network, characterised by using data which are assembled by the network layer during establishment of a PDP context in GPRS networks. The invention comprises System of units in a mobile telecommunication network, including at least a first authentication unit which is connected via a data line to a second unit which assembles data according to the described method.

Transparent access authentication in GPRS core networks

A method and a system for operating a radio communication network which is characterized in that a first radio communication network uses at least one function of a second radio communication network by connecting the first radio communication network to at least one module of the second radio communication network.

Growing community of inventors

Königswinter, Germany

Matthias Britsch