Siemens Aktiengesellschaft

Wolfgang Fraas

Klaus Huenlich

Klaus Hünlich

Klaus Wehrend

Klaus H&uuml;nlich

Bernhard Petri

Karlo Nemeth

A method for connecting exchanges via a packet-oriented communication network wherein the exchanges are connected via a respective conversion device to the packet-oriented communication network, in which data transmission involves data packets subdivided into substructure elements being set up. For data transmission, the conversion device associated with a transmitting exchange inserts the substructure elements into the data packets, and a conversion device associated with the receiving exchange separates the substructure elements from the data packets.

Method for connecting exchanges via a packet-oriented communication network

The communication terminals are connected to the packet-oriented communication network via a hub and the switching system is connected to the packet-oriented communication network via an access unit. A data format formed of substructural elements is set up for a data transmission between a switching system and the communication terminals. The data to be transmitted in the form of substructural elements are inserted into data packets at the transmitter end for a data transmission via the communication network. The substructural elements are extracted from the received data packets at the receiver end. Accordingly, the data packets have been transmitted transparently with no compression/decompression and conversion according to the RTP protocol at the transmitter and receiver end.

Method for connecting communications terminals to a exchange via a communications network

A method for data transmission via a packet-oriented communications network, wherein, communications terminal devices are connected to the packet-oriented communications network via at least one transfer unit and a switching system. To transmit data between the switching system and the communications terminal devices, a time-slot-oriented data format is provided, which is formed from a periodic sequence of channel-specific information segments. For the transmission of data via the communications network, a user data area of a data packet used to transmit data via the communications network is subdivided into at least one first subpacket and into a second subpacket, data of a channel-specific information segment being transmitted in each case in the first subpackets.

Method for data transmission via a packet-oriented communications network

Communication terminals are connected to a communication network via at least one hub having an unambiguous address in the communication network. Data transmission between the switching system and the communication terminals is provided using a time-slot-oriented data format formed from a periodic sequence of channel-oriented information segments. The address of the hub is transmitted from the hub to the switching system in an agreed information segment.

Method for identifying a transfer unit which is part of a connection between a communications terminal and a private branch exchange

A method for determining a network access address wherein a terminal address and a system address designating the switching system associated with the communication terminal are stored in the communication terminal. When the communication terminal is connected to the communication network, a configuration message containing the terminal address is transmitted to the switching system determined by reference to the system address, which switching system determines the network access address via the configuration message.

Method for determining a network access address

In a transmission of voice data, the stream of voice data is first decomposed into phonemes. For each phoneme a code symbol which is assigned to that specific phoneme in a selectable voice-specific and/or speaker-specific phoneme catalog is transmitted to a voice synthesizer at the transmission destination. The amount of data which has to be transmitted is generally greatly reduced. The decomposition of the stream of voice data into phonemes is carried out by a neural network which is trained to detect the phonemes stored in the selected voice-specific and/or speaker-specific phoneme catalog. The voice synthesizer reconverts the stream of received code symbols into a sequence of phonemes and outputs it.

Method of transmitting voice data

In response to a connection setup initiated by a time-division-multiplex-oriented component, an ATM-communications-network-specific destination information item is derived from a specified signaling information item, and an ATM switched connection is automatically set up in the ATM communications network. After a transparent transfer of signaling and useful information via the switched connection that has been set up, the ATM switched connection in question is released. This provides more efficient use of the ATM communications network.

Method and adapter device for switching switched connections between time-division-multiplex-oriented components of a communications network via an ATM communications network

In a method for transmission of digital signals present in the form of time division multiplex channels via an ATM transmission device, a plurality of time division multiplex channels are cyclically combined in a call frame with cyclically transmitted frame cycles. The call frame contains at least one useful information channel and at least one control information channel. The digital signals present in the form of time division multiplex channels are converted into ATM cell useful information. These ATM cells are transmitted in virtual ATM channels and then again converted into time division multiplex channels which are combined in a call frame with frame cycles to be transmitted cyclically. If empty useful information channels are to be transmitted, an information item regarding empty useful information channels is inserted into the control information channel data and the useful information channels are not transmitted via ATM. At the receiving point, the information item regarding empty useful information channels is detected and empty useful information channels are inserted.

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Wolfratshausen, Germany

Wolfgang Fraas