Abstract: A voice relaying apparatus includes a receiving section for receiving a cell from an asynchronous transfer mode (ATM) network, a plurality of cell assembling/disassembling units for assembling and disassembling the cells, and a transmitting section for transmitting the cells assembled by each of the plurality of cell assembling/disassembling units. Each of the plurality of cell assembling/disassembling units is composed of a cell disassembling section for disassembling the cell received by the receiving section, a detecting section for detecting whether or not the voice relaying apparatus is carrying out a relay switch operation, and a cell assembling section for assembling the cell disassembled by the cell disassembling section and then sending to the transmitting section, if the fact that the voice relaying apparatus is carrying out the relay switch operation is detected by the detecting section.

Abstract: A voice relaying apparatus includes a receiving section for receiving a cell from an asynchronous transfer mode (ATM) network, a plurality of cell assembling/disassembling units for assembling and disassembling the cells, and a transmitting section for transmitting the cells assembled by each of the plurality of cell assembling/disassembling units. Each of the plurality of cell assembling/disassembling units is composed of a cell disassembling section for disassembling the cell received by the receiving section, a detecting section for detecting whether or not the voice relaying apparatus is carrying out a relay switch operation, and a cell assembling section for assembling the cell disassembled by the cell disassembling section and then sending to the transmitting section, if the fact that the voice relaying apparatus is carrying out the relay switch operation is detected by the detecting section.

Abstract: A voice relaying apparatus includes a receiving a cell from a network, a plurality of cell assembling/disassembling units for assembling and disassembling the cells, and a transmitting section for transmitting the cells assembled by each of the plurality of cell assembling/disassembling units. Each of the plurality of cell assembling/disassembling units is composed of a cell disassembling section for disassembling for cell received by the receiving section, a detecting section for detecting whether the voice relaying apparatus is carrying out a relay switch operation, and a cell assembling the cell disassembled by the cell disassembling section and for sending the cell to the transmitting section if the detecting section detects that the voice relaying apparatus is carrying out the relay switch operation.

Abstract: A voice relaying apparatus includes a receiving section for receiving a cell from an asynchronous transfer mode (ATM) network, a plurality of cell assembling/disassembling units for assembling and disassembling the cells, and a transmitting section for transmitting the cells assembled by each of the plurality of cell assembling/disassembling units. Each of the plurality of cell assembling/disassembling units is composed of a cell disassembling section for disassembling the cell received by the receiving section, a detecting section for detecting whether or not the voice relaying apparatus is carrying out a relay switch operation, and a cell assembling section for assembling the cell disassembled by the cell disassembling section and then sending to the transmitting section, if the fact that the voice relaying apparatus is carrying out the relay switch operation is detected by the detecting section.

Abstract: A voice relaying apparatus includes a receiving section for receiving a cell from an asynchronous transfer mode (ATM) network, a plurality of cell assembling/disassembling units for assembling and disassembling the cells, and a transmitting section for transmitting the cells assembled by each of the plurality of cell assembling/disassembling units. Each of the plurality of cell assembling/disassembling units is composed of a cell disassembling section for disassembling the cell received by the receiving section, a detecting section for detecting whether or not the voice relaying apparatus is carrying out a relay switch operation, and a cell assembling section for assembling the cell disassembled by the cell disassembling section and then sending to the transmitting section, if the fact that the voice relaying apparatus is carrying out the relay switch operation is detected by the detecting section.

Abstract: A path setting control system in a communication network includes terminal nodes located at both ends of a path for data transmission and a plurality of relay nodes located at intermediate positions in the path, and performing alternation process of the path at the occurrence of simultaneous failure in two transmission lines at both sides of one relay node among a plurality of the relay nodes.

Abstract: For switching data time slots between input and output data signals, each having a multiframe structure, a time slot switching device comprises only one time slot switching circuit. Consequently, the device comprises a sole data memory, a single novel write address generator, and only one novel read address generator. The write address generator comprises first through N-th frame synchronization units, where N represents the number of attributes by which the data time slots are featured. Connected to the frame synchronization units, a selector is controlled by a switch mode memory (SWM) controlled, in turn, by a central processing unit. Like each conventional read address generator, the novel read address generator comprises an address control memory (ACM) controlled by the central processing unit. Only one phase adjusting circuit is used to adjust operation of the read address generator relative to that of the write address generator as regards phases of operation.

Abstract: According to this invention, a time slot switching function diagnostic system includes a first inserting circuit, a data memory, an address controller, a second inserting circuit, and a check circuit. The first inserting circuit inserts path monitoring test pattern data into a specific on-line time slot of a unit frame consisting of N time slots. The data memory writes and reads data input to the time slots. The address control circuit supplies write and read addresses to the data memory. The second inserting circuit feeds back an output from the data memory to an input side to repetitively insert the test pattern data in time slots sequentially following the specific time slot. The check circuit extracts the test pattern data from an output corresponding to an Nth time slot of the data memory to check the test pattern data.