System and method for performing signaling-plan-specific call progress analysis
First Claim
1. A method of performing call progress analysis in a telephone system in which different types of in-band signaling plans are used, comprising:
- determining, from address information for a call destination contained in a call initiation message, which of different types of in-band signaling plans is utilized by equipment associated with the call destination; and
based upon the signaling plan type determination, selecting a corresponding type of call progress analysis resource and allocating the selected call progress analysis resource to the call.
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Accused Products
Abstract
Call progress analysis is performed in a telephone system employing different in-band signaling plans are used. From address information for a call destination in a call initiation message, it is determined which type of in-band signaling plans is utilized by equipment associated with the call destination, for example by examining country codes in a dialed telephone number. Based upon the determined signaling plan type, a corresponding type of call progress analysis resource is selected and allocated for use with the call. The analysis resource may include a digital signal processor (DSP) programmed with an analysis routine tailored to the determined signaling plan. The DSP may be pre-programmed with such a routine or may be loaded at call time with analysis parameters appropriate to the signaling plan. The telephone system may employ a packet network and packet-based telephony transmission, a media gateway controller or a Session Initiation Protocol (SIP) proxy server, an a media server. A telephone network employing more traditional time-division-multiplexed (TDM) based media transmission may also be utilized.
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Citations
24 Claims
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1. A method of performing call progress analysis in a telephone system in which different types of in-band signaling plans are used, comprising:
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determining, from address information for a call destination contained in a call initiation message, which of different types of in-band signaling plans is utilized by equipment associated with the call destination; and
based upon the signaling plan type determination, selecting a corresponding type of call progress analysis resource and allocating the selected call progress analysis resource to the call. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A telephone system providing analog call progress analysis, comprising:
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a packet network operative to provide packet-based transmission of media and signaling traffic;
a first node coupled to the packet network, the first node being operative to perform a routing function, the routing function determining, from address information for a call destination contained in a call initiation message received from a call initiator coupled to the packet network, which of different types of in-band signaling plans is utilized by equipment associated with the call destination; and
a second node coupled to the packet network, the second node being operative to perform a media processing function, the media processing function selecting, based upon the signaling plan type determination, a corresponding type of call progress analysis resource and allocating the selected call progress analysis resource to the call. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A telephone system providing analog call progress analysis, comprising:
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a signaling network operative to provide transmission of call signaling traffic;
a media network operative to provide time-division-multiplexed based transmission of call media;
a controller coupled to the signaling network, the controller being operative to perform a routing function, the routing function determining, from address information for a call destination contained in a call initiation message received from a call initiator, which of different types of in-band signaling plans is utilized by equipment associated with the call destination; and
a media processing node coupled to the media network, the media processing node being operative to perform a media processing function, the media processing function selecting, based upon the signaling plan type determination, a corresponding type of call progress analysis resource and allocating the selected call progress analysis resource to the call.
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Specification