EP0631457A2
Expired / Lapsed
EP
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Communications signaling protocols
Assignee: AT&T Inc
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Filing: 1994-06-15
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Granted: —
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Expires: 2014-06-15
Abstract
Abstract A modular suite of peer-to-peer protocols that are independent of the communications network architecture supported, and the type of switching systems (packet-switched or circuit-switched), is used for a broadband and/or narrowband communications network. The protocols are comprised of client-server-oriented signaling messages that are restricted to include information and parameters associated with only one particular function of traditional call processing.
Inventors
- 👤 Thomas F. La Porta
- 👤 Malathi Veeraraghavan
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 22:38
CPC Classifications
H; H04; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0478; H04Q11/0435; H04Q11/0457; H04L; H04L12/00; H04L12/54; H04L12/56; H04L12/5601; H04L2012/5629; H04L2012/563; H04Q2213/00; H04Q2213/05; H04Q2213/056; H04Q2213/29; H04Q2213/345; H04Q2213/38
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
76 words
A modular suite of peer-to-peer protocols for use in communications between entities of broadband and narrowband communications networks, comprising at least one client-server-oriented signaling message a) comprising an operation and one or more parameters and representing a call processing function that is selected from a group of functions consisting of call control function, channel control function, and connection control function; the message being independent of communications network architecture and of switching systems used in the architecture.
Claim 2
Dependent Claim
51 words
The invention of claim 1 wherein signaling messages conforming to the protocols are defined to a) perform service control call processing function independently of the call control, channel control and connection control functions b) facilitate communications between a service-specific server providing a particular communications service, and an entity of the network.
Claim 3
Dependent Claim
65 words
The invention of claim 1 wherein said call control function includes the operations of a) service invocation and coordination when multiple services are invoked in a call, b) user-to-user and user-to-server negotiation of resources, c) recognition of needs for special resources which include protocol converters and multimedia bridges, d) maintenance of call state and configuration information and e) management of ownership and permissions for calls.
Claim 4
Dependent Claim
47 words
The invention of claim 1 wherein said channel control function includes the operations of a) allocation of resources on a link by link basis to implement a connection, and b) maintenance of Virtual Channel Identifier translation table entries to interconnect channels that are part of a connection.
Claim 5
Dependent Claim
29 words
The invention of claim 1 wherein said connection control function comprises the operations of a) establishing, releasing, and modifying connections within a call, and b) computing end-to-end quality-of-service measurements.
References Cited (Backward Citations)
No citation records indexed.
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