Patent EP0734187A2 successfully refreshed from Google Patents.
EP0734187A2
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EP
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Updating call processing data in a telecommunications network
Assignee: AT&T Inc
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Filing: 1996-03-13
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Granted: —
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Expires: 2016-03-13
Abstract
Abstract A telecommunication network may be arranged in accord with the invention so that a change in provisioning data occurring at one element of the network is automatically supplied to the other elements of the network, thereby eliminating the need of having a network administration facility to communicate manually the change to the other network elements. For example, if a local central office switch is rehomed from a first toll switch to a second toll switch, then the first and second toll switches form messages respectively characterizing the rehome and then send the messages to each of the other network toll switches so that the other toll switches may update their respective routing and trunking data relating to the rehomed switch. The network is also arranged to implement a rule-based, end-to-end routing scheme which automatically selects a routing path from multiple candidates based on (a) class-of-service parameters and (b) availability of network capacity. The automatic selection of a routing path thus replaces the provisioning of routing data in the toll switches, which data was priorly needed to select the appropriate routing path.
Inventors
- 👤 Gerald Richard Ash
- 👤 Kenneth King-Yu Chan
- 👤 Jiayu Chen
- 👤 Alan Eugene Frey
- 👤 Andrew Wynne Peck
- 👤 James J. Gallagher
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 18:50
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/64; H04Q3/66; H04Q2213/00; H04Q2213/13144; H04Q2213/13176; H04Q2213/13251; H04Q2213/13353
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
69 words
Apparatus for provisioning call processing parameters in a telecommunications network, said network comprising a plurality of interconnected switches and characterized by means for changing said call processing routing data in one of said plurality of switches, and in said one of said switches, means, responsive to said change, for forming a message characterizing said change and then sending said message to each of the other ones of said switches.
Claim 2
Dependent Claim
68 words
The apparatus set forth in claim 1 wherein said call processing routing data include trunking and routing parameters and wherein said change is a change in a trunk group data profile specifying the trunking and routing parameters associated with a trunk group internal to said one of said switches and wherein said trunking and routing parameters include data specifying a circuit selection capability for said internal trunk group.
Claim 3
Dependent Claim
33 words
The apparatus set forth in claim 2 further characterized in that said circuit selection capability specifies a signal processing function that will be applied to voice signals transported over the associated trunk group.
Claim 4
Dependent Claim
32 words
The apparatus set forth in claim 3 further characterized in that said signal processing function is either a signal enhancement function, or a DTMF digit detection function, or a data compression function.
Claim 5
Dependent Claim
35 words
The apparatus set forth in claim 2 further characterized in that said circuit selection capability specifies whether intertoll connections to respective trunks of the associated trunk group are optical fiber connections, or via radio satellite.
Claim 6
Dependent Claim
107 words
Tne apparatus set forth in claim 1, further characterized in that said one of said switches is connected to at least one central office switch disposed external to said network via at least one trunk group internal to said one switch and wherein said call routing parameters include a data Network Addressable Destination (NAD) data record associated with said trunk group and wherein said NAD data record includes data identifying (a) an address of said one central office switch, (b) dialing codes supported by said one central office switch, (c) transport capability of said one trunk group, and (d) circuit selection capability of said one trunk group.
Claim 7
Dependent Claim
27 words
The apparatus set forth in claim 6 further characterized in that said change is a change in the dialing codes supported by said one central office switch.
Claim 8
Dependent Claim
47 words
The apparatus set forth in claim 1 further characterized by in another one of said switches means, responsive to receipt of said message, for changing the call processing routing data associated with said other one of said switches in accord with the contents of said received message.
Claim 9
Dependent Claim
45 words
The apparatus set forth in claim 2 further characterized by in said one of said switches means for automatically allocating for a predetermined period of time, for provisioning purposes, a predetermined level of bandwidth to each routing pattern identity value associated with said trunk group.
Claim 10
Dependent Claim
39 words
The apparatus set forth in claim 9, further characterized in that said means for automatically allocating includes means, operative at the termination of said predetermined period of time, for calculating said allocation for a succeeding predetermined period of time.
Claim 11
Dependent Claim
55 words
The apparatus set forth in claim 2 further characterized by in said one of said switches means operative, for provisioning purposes, for automatically determining and allocating for different load set periods of time of respective repeating predetermined periods of time respective levels of bandwidth to each routing pattern identify value associated with said trunk group.
Claim 12
Dependent Claim
68 words
The apparatus set forth in claim 1 further characterized by means for associating a telephone call received at said one of said switches with a circuit selection index, in which said circuit selection index is a level of preference for a circuit selection capability that is used by said one of said switches to select a trunk that will be used to forward said call toward its destination.
Claim 13
Dependent Claim
107 words
The apparatus set forth in claim 12, further characterized in that said level of preference includes (a) required, meaning that said call may be routed only via a trunk having a particular circuit capability; (b) preferred, meaning that an attempt should be made to route the call via a trunk having the specified circuit capability; (c) last choice, which is the logical compliment of the preferred level of preference; (d) prohibited - meaning that the call should not be routed via a trunk having a specified circuit capability. and (e) don't care - meaning that circuit capability should not be considered in the routing of the call.
Claim 14
Dependent Claim
97 words
The apparatus set forth in claim 12, further characterized in that said means for associating includes means for forwarding said call to said destination via a trunk selected in accord with the circuit selection index associated with said call in which the selected trunk is connected to another one of said switches and for also forwarding said circuit selection index to said other one of said switches so that said call may be forwarded from said other switch toward said destination via a trunk of said other switch selected as a function of said circuit selection index.
Claim 15
Dependent Claim
100 words
The apparatus set forth in claim 6 further characterized by in said one switch means, responsive to receipt of a call and a called telephone number from a Central Office switch, for translating said telephone number into a network addressable destination and responsive to such translation for forwarding said call to said network addressable destination, and means, responsive to said telephone number translating into a plurality of network addressable destinations, for selecting one of said plurality of network addressable destinations as a function of a proportional routing method and for then forwarding said call to the selected network addressable destination.
Claim 16
Independent Claim
66 words
A method of provisioning call processing parameters in a telecommunications network, said network comprising a plurality of interconnected switches, said method characterized by the steps of responsive to changing said call processing parameters in one of said plurality of switches, forming a message characterizing said change, and responsive to the forming of said message, sending said message to each of the other ones of said switches.
Claim 17
Dependent Claim
80 words
Apparatus characterized by a telecommunications network formed from a plurality of interconnected switches, means, responsive to a change in a connection between first and second ones of said switches, for causing said first and second ones of said switches to form respective messages characterizing said change as it respectively pertains to said first and second switches, and means in each of said first and second switches for sending the associated message to each of the other ones of said switches.
Claim 18
Independent Claim
161 words
A method of forwarding a telephone call from a first switch in a telecommunications network to a Network Addressable Destination (NAD) characterized by the steps of (a) selecting a direct route from said first switch to said NAD and forwarding said call to said NAD via said direct route, (b) if said call cannot be forwarded to said NAD via said direct route from said first switch to said NAD, then identifying a second switch having a direct route to said NAD in which the latter direct route was previously used to route a call to said NAD and forwarding said call to said second switch, and (c) if said call cannot be forwarded to said NAD via a direct route of said second switch, then identifying a number of other switches each having a direct route to said NAD and forwarding said call to each of said other switches, in turn, until said call is forwarded successfully to said NAD.
References Cited (Backward Citations)
No citation records indexed.
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