Abstract:
The invention relates to a plurality of common switching systems which are interconnected in order to form a virtual switching system. The number of the internal switching system is entered into the numbering of the port of the virtual switching system thus making a standardised user interface of the switching system become available. The port can be managed by a user in a traditional manner. The virtual switching system can be automatically configured due to said type of configuration when a central entity for developing the internal routing on the partial system is introduced, and then, optional geographical redundancy of the virtual switching system is possible.
Abstract:
A process is disclosed for detecting the availability of components of a redundant communication system in which hardware components are available at least in duplicate, the redundant system components taking over the function of the previously active operating system components when one or more hardware components break down. The system components operate together in resource groups and each resource group can run on at least two hardware components. In order to permit system component availability to be detected, one resource group operates actively on precisely one single hardware component and the at least one redundant resource group runs on at least one additional system component in a standby mode, the data in the active resource group being automatically replicated.
Abstract:
In one aspect, a method for billing for a connection routed via a packet network is provided. According to the method, billing is started the when the connection is established between a plurality of subscriber terminals. Information packets are transmitting according to a quality standard by at least one of the terminals. The information packets are routed in the network via a central device controlling a quality. The billing is stopping if the quality standard is not met.
Abstract:
In one aspect, a method for detecting the fault of a message interface in a communications device is provided, wherein the message interface comprises at least two layers which communicate with each other, a top layer accesses to the services of the lower layer and offers the services thereof to upper layers, for detecting a fault in the layers, at least one test application sends at least one test message for testing the information state of at least certain individual layers, thereby making it possible to control the information capabilities between the layers of the message interface.
Abstract:
An identical clone, with identical hardware, identical software and an identical data base, is allocated to each switching system to be protected, as a redundancy partner. Switching is carried out in a quick, secure and automatic manner by a superordinate, real-time enabled monitor which establishes communication with the switching systems which are arranged in pairs. In the event of communication loss with respect to the active communication system, real-time switching to the redundant switching system is carried out with the aid of the central controls of the two switching systems.
Abstract:
During the output of data and distribution services, user data streams frequently transferred to a corresponding communication device (i.e. information output system and/or the distribution system) are possibly irrelevant to the server. Despite this, resources for the processing of incoming useful data flows inside the communication device are provided in many cases on account of compatibility grounds. As a result, energy is reduced in the communication device. According to the invention, in order to reduce the efforts involved in processing useful data transferred in the direction of the communication device, at least one part of useful data is discarded prior to the implementation of working steps provided for the processing of useful data.
Abstract:
The invention relates to a distribution of load to peripheral adaptation units of a packet-based switching system, whereby the peripheral adaptation units serve as an interface between the packet-based switching center and a packet-based communications network. According to the invention, a load that accrues in the switching center is statically or dynamically distributed to the peripheral adaptation units by a load distributor. This enables the periphery adaptation units to be utilized whereby preventing wiring-related overloads and, in addition, being able to take different performance capacities of the peripheral adaptation units into account. When at least one additional switching center is provided upstream, a load budget concerning its use of the peripheral adaptation units can be transmitted thereto from the packet-based switching center. The load distribution is adapted in the event of hardware failures and signaling interferences.
Abstract:
A method for providing language-based services in a telecommunication system is provided. According to the method, the definitions of the respective services are globally defined exclusively in a central service controller and are then converted into regional formats in regional media servers in accordance with predefined transformation rules. In addition, the method utilizes data of the exchange for selecting the desired language.
Abstract:
In general, electrical units have to meet the requirements for high reliability and a high level of operational safety. This applies in particular to communications systems where the constant availability of all devices is necessarily required. For this reason, computer capacity is held in reserve in order to guarantee operational safety, so that in the event of failure of an electrical device, the currently-running functions can be transferred to additional (active) electrical devices. The control of these processes is carried out by a redundancy control. However, the problem associated with prior art remains, whereby all processes for redundancy control are expensive or unreliable, sometimes even both. An aspect of the invention provides a solution by virtue of the fact that each of the electrical devices is monitored by an additional electrical device and that, optionally, each of these devices, in turn, monitors at least one of the electrical devices.
Abstract:
An identical clone, with identical hardware, identical software and an identical data base, is allocated to each switching system to be protected, as a redundancy partner. Switching is carried out in a quick, secure and automatic manner in real time by a superordinate monitor in the network.