Generating call detail records
First Claim
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1. A method of generating a call detail record for a telecommunications call established via a media gateway under the control of a media gateway controller, comprising the steps of:
- detecting messages exchanged between media gateways and at least one media gateway controller;
locating identification information within the messages;
associating command messages with corresponding response messages in accordance with a first kind of identification information;
associating command and response messages relating to a specific gateway in accordance with a second kind of identification information;
associating messages relating to different gateways in accordance with a third kind of identification information; and
combining the messages which have been associated with one another to produce a call detail record.
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Abstract
Request and response messages conforming to a protocol such as Media Gateway Control Protocol between media gateways and a media gateway controller are examined to enable them to be correlated. The correlated messages are assembled to produce a call detail record describing a voice or data call established over an IP network via the media gateways under the control of the media gateway controller.
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Citations
20 Claims
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1. A method of generating a call detail record for a telecommunications call established via a media gateway under the control of a media gateway controller, comprising the steps of:
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detecting messages exchanged between media gateways and at least one media gateway controller; locating identification information within the messages; associating command messages with corresponding response messages in accordance with a first kind of identification information; associating command and response messages relating to a specific gateway in accordance with a second kind of identification information; associating messages relating to different gateways in accordance with a third kind of identification information; and combining the messages which have been associated with one another to produce a call detail record. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. Apparatus for generating a call detail record for a telecommunications call established via a media gateway under the control of a media gateway controller, comprising:
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a monitor for detecting messages exchanged between media gateways and at least one media gateway controller; a locator for locating identification information within the messages; an associator for associating command messages with corresponding response messages in accordance with a first kind of identification information, for associating command and response messages relating to a specific gateway in accordance with a second kind of identification information, and for associating messages relating to different gateways in accordance with a third kind of identification information; and a combiner for combining the messages which have been associated with one another to produce a call detail record. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification