Exchange for communication network
First Claim
1. A communications exchange comprising:
- a plurality of distributed nodes for processing calls from or to local exchanges, said nodes functioning as a single exchange for signaling purposes, two or more of said nodes each being arranged to be connected to selected ones of a plurality of local exchanges by respective trunk routes, and a signaling point code being assigned to a node-end of each trunk route, wherein the signalling point codes assigned to the node-ends of the separate trunk routes to each said local exchange differ from each other;
wherein said point codes are re-used for the respective node ends of the trunk routes connecting to each said local exchange; and
wherein communication between the distributed nodes of said communications exchange is effected without the use of inter-exchange signalling.
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Abstract
An exchange comprises a plurality of distributed nodes for processing calls from or to a first neighboring exchange, two or more of said nodes being arranged to be connected to the first neighboring exchange by separate trunk routes, and a signalling point code being assigned to the node-end of each trunk route, wherein the signalling point codes assigned to the node-ends of the separate trunk routes to the first neighboring exchange, differ from each other.
The first neighboring exchange sees the exchange as if it were two or more conventional exchanges. The total amount of call processing for handling a call in a network which incorporates one or more exchanges of the invention can be reduced.
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Citations
10 Claims
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1. A communications exchange comprising:
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a plurality of distributed nodes for processing calls from or to local exchanges, said nodes functioning as a single exchange for signaling purposes, two or more of said nodes each being arranged to be connected to selected ones of a plurality of local exchanges by respective trunk routes, and a signaling point code being assigned to a node-end of each trunk route, wherein the signalling point codes assigned to the node-ends of the separate trunk routes to each said local exchange differ from each other;
wherein said point codes are re-used for the respective node ends of the trunk routes connecting to each said local exchange; and
wherein communication between the distributed nodes of said communications exchange is effected without the use of inter-exchange signalling.- View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of routing traffic across a communications network incorporating at least one distributed communications exchange comprising a plurality of distributed nodes for processing calls from or to a first neighbouring exchange, said nodes functioning as a single exchange for signaling purposes, two or more of said nodes each being arranged to be connected to selected ones of a plurality of local exchanges by respective trunk routes, and wherein communication between the distributed nodes of said communications exchange is effected without the use of inter-exchange signalling;
- wherein the method comprises;
assigning signalling point codes one to the node end of each trunk route such that the signalling point codes assigned to the node-ends of the separate trunk routes to each said local exchange differ from each other and such that said point codes are re-used for the respective node ends of the trunk routes connecting to each said local exchange; and
routing traffic across the network on the basis of at least one of the re-used point codes. - View Dependent Claims (8, 9, 10)
- wherein the method comprises;
Specification