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Call and circuit state machine for a transaction control layer of a communications signaling gateway

a technology of communication signaling gateway and transaction control layer, which is applied in the field of computer telephony, can solve the problems of large and statistics generated, and the modification of the platform as a result of interface changes will require significant time, money and effor

Inactive Publication Date: 2001-12-27
VERIZON PATENT & LICENSING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010] Another advantage of the present invention is that by using a single process to track different states, several states can be related. This allows resource management to be performed for an entire NGSN.

Problems solved by technology

This results in an inefficient network because a call needing a certain application must be routed to a certain IVR service node irrespective of that node's current load.
Any modification to the platform as a result of interface changes will require significant time, money and effort.
Also, statistics are generated for all incoming messages and invalid messages are alarmed.
However, the NGSN platform is a complex computing platform with great costs associated with making any modifications thereto.

Method used

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  • Call and circuit state machine for a transaction control layer of a communications signaling gateway
  • Call and circuit state machine for a transaction control layer of a communications signaling gateway
  • Call and circuit state machine for a transaction control layer of a communications signaling gateway

Examples

Experimental program
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Embodiment Construction

of TCL State Processing

[0066] Processing flow 300 is performed by the TCL 214 for call state processing--(1) incoming calls processing; (2) outgoing calls processing--and for resource (circuit) state processing--(3) local circuit maintenance blocking states processing; and (4) remote maintenance blocking states processing.

[0067] 1. Incoming Call States Processing

[0068] FIGS. 4A-C are call flows illustrating the incoming call states processing 400 performed by the TCL 214 in a preferred embodiment. FIGS. 4A-C illustrate the states that a current call may have within the TCL 214, the messages that trigger state transitions, and actions performed by the TCL 214. General processing is described below. It should be noted that not all events described herein appear in FIGS. 4 A-C (and FIGS. 5-7 to follow). Events related to the unique processing of the TCL 214 are highlighted, however, events related to standard ANSI ISUP processing, which will be apparent to one skilled in the relevant a...

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PUM

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Abstract

A transaction control layer for a signaling gateway that encapsulates multiple signaling systems into a single signaling interface for use by an advanced service node deployed in a telecommunications network. The transaction control layer performs call and resource state management functions for the advanced service node. The single state machine process has the capability of tracking different types of states for both calls and network resources (i.e., circuits) while using industry standards for call processing.

Description

[0001] 1. Field of the Invention[0002] The present invention relates generally to computer telephony, and more particularly to providing a signaling method for a communications signaling gateway to be used in conjunction with advanced service node platforms to handle calls on a telephone network.[0003] 1. Related Art[0004] Service node platforms that provide enhanced call services are common in the telecommunications industry. The modern trend is to design and implement modular service nodes that may be placed anywhere throughout a telecommunications network. A common example of a service node is an Interactive Voice Response (IVR) service node. It is common for a business, who is a customer of a telecommunications service provider, to use IVR services in conjunction with call center services. The IVR service nodes are commonly used for customer call center routing. They perform processing of customer applications, based on one or more criteria selected by the customer, such as the ...

Claims

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Application Information

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IPC IPC(8): H04M15/00H04Q3/00
CPCH04M15/00H04M15/43H04Q3/0025
Inventor CAPERS, JAMES A.MACEDO, JOHNPHELPS, DAVIDTROUSDALE, SHANNAN E.
Owner VERIZON PATENT & LICENSING INC