In a telecommunication network, each node is provided with the same physical topology information relating to a physical construction of telecommunication paths included in the telecommunication network and with the same logical topology information relating to routing of telecommunication paths. When a failure occurs, restoration is effected by transmitting information relating to the failure that has occurred in the telecommunication network, throughout the network. Each node that receives the...

In a switch having input ports and output ports, a fast ring reservation arbitration is provided by grouping crosspoint units associated with an output port. If any of the crosspoint units of a group request the output port, a received token will be passed to crosspoint units within the group. If, on the other hand, none of the crosspoint units of a group request the output port, then a received token will bypass the group and be forwarded to a next group.

A communication network uses intermediate nodes to resolve local traffic contention. Intermediate nodes receive upstream signals from end users, derive traffic information signals from the upstream signals, and transmit the traffic information signals to end users. By listening to the traffic information signals from the intermediate node, the end users know whether the upstream transmission channels are idle or busy, or whether a collision has occurred. The intermediate nodes derive and transmi...

A radiotelephone device receiving network information, transmitted along a radio channel, from a network includes an acknowledgement coordination module determining a mode for exchange of acknowledgement information with the network. The radiotelephone device transmits the acknowledgement information to the network through a main dedicated control channel, using a defined service access point identifier corresponding to transmission of the acknowledgement information through the main dedicated c...

Techniques employed in packet networks for transferring a packet across subnetworks with different namespaces. When a packet enters a given subnetwork and has a destination in a subnetwork with a different namespace, the given subnetwork encapsulates the packet by adding a header which specifies a decapsulator in the namespace. When the packet arrives at the decapsulator, the decapsulator strips the header and provides the packet to a subnetwork with a different namespace. A particular use of th...

The invention includes a system for processing telecommunications signaling. Signaling for a call is received into a signaling processor. The signaling processor processes the call and generates new signaling incorporating the processing. The new signaling is transferred to network elements as appropriate. The signaling processor is not coupled to a switch matrix and only communicates with the network elements over signaling links.

The objective of the invention is a system, comprising an ISDN-network, having access through the intelligent network service switching point (SSP) to the services offered by the intelligent network service control point (SCP), a data network, in which at least one computer has a data network-address, and a gateway connecting the networks. The call can be connected to a telephone integrated to the computer, so that the data network-address used by the subscriber's computer and the subscriber's p...

In a method of routing a short message with high or low priority from a service center to a mobile station in a public land mobile network providing both packet data service and circuit switched service, a choice is made, in advance, as to whether the short message should be received by the mobile station either via a specific one of the services or via any of the services. Based upon this choice in step, the priority of the short message sent from the service center, and an indication of whethe...

A method of setting up a conference has the following steps: 1) selecting a conference bridge (68) and a conference number; 2) dialing a conference number; 3) when a private branch exchange (52) seizes an off-network trunk (55), receiving the conference number at a interexchange carrier service switching point; 4) routing the conference call to a local exchange carrier service switching point (74); 5) routing the conference call over a dedicated access line (78) to an on-network service switchin...

A data processing apparatus for performing data communication via a digital interface includes a receiver circuit for receiving reception data and a transmitter circuit for transmitting transaction data corresponding to the reception data. The transaction data includes a source ID representative of a source node and a destination ID representative of a destination node. ID information of the data processing apparatus is controlled by a management control circuit. An ID setting circuit sets the I...