Method of operation of a nodal telephone and data communication network to provide specific facilities in changeable domains of the network
First Claim
1. A method of operation of a PABX telephone and data communication network comprising a set of nodes interlinked by TDM transmission lines;
- each node comprising a switching module, one or more peripheral modules with user gates connected thereto, and a control module;
such method comprising;
providing local data in each node of a subset of said set of nodes, such local data controlling the operation of the control module in the relevant node to provide a specific facility-bound program;
including in the local data in each node of said subset an adjustable file of addresses of nodes in said network at which a call for said specific facility can be accepted;
and incorporating the addresses of all nodes in said subset in the address file of each of such nodes, to thereby define a domain wherein said specific facility is made available to nodes listed in the address files of the nodes in said subset.
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Abstract
A method of operation of a telephone and data PABX communication network which comprises a set of nodes interlinked by means of TDM-transmission lines. Each node serves an individual switching exchange and comprises its own control module. To a user the network is manifested as a single system. The invention flexibly sub-divides such a system, allowing the offering of fully integrated specific facilities within the boundaries of domains that can be arbitrarily defined within the total network configuration. Local data is provided in each node for a specific facility-bounded program which dictates the operation of a control module of the node. Such data contains an adjustable address file having the addresses of those nodes over which a call or a specific facility to which such program relates can be accepted. Nodes to which a specific facility is extended and whose addresses are incorporated in the file of each such node define a fully integrated domain wherein the relevant specific facility can be offered.
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4 Claims
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1. A method of operation of a PABX telephone and data communication network comprising a set of nodes interlinked by TDM transmission lines;
- each node comprising a switching module, one or more peripheral modules with user gates connected thereto, and a control module;
such method comprising;providing local data in each node of a subset of said set of nodes, such local data controlling the operation of the control module in the relevant node to provide a specific facility-bound program; including in the local data in each node of said subset an adjustable file of addresses of nodes in said network at which a call for said specific facility can be accepted; and incorporating the addresses of all nodes in said subset in the address file of each of such nodes, to thereby define a domain wherein said specific facility is made available to nodes listed in the address files of the nodes in said subset. - View Dependent Claims (2, 3, 4)
- each node comprising a switching module, one or more peripheral modules with user gates connected thereto, and a control module;
Specification