Method of and system for providing intelligent network control services in IP telephony
First Claim
1. A method, performed by a call control entity, for establishing a telephone call, comprising:
- receiving a call establishment request from a data network;
determining whether the call establishment request is associated with an intelligent network service;
sending, in response to determining that the call establishment request is associated with an intelligent network service, a Session Initiation Protocol (SIP) invite request to a called party at a SIP redirect server, the SIP invite request causing the SIP redirect server to obtain a new address for the called party; and
establishing the telephone call based on the new address.
7 Assignments
0 Petitions
Accused Products
Abstract
A method and system for providing intelligent network control services in IP telephony, wherein the system includes a location manager and an IP telephony proxy server. The location manager includes an interface to a legacy telephony service control entity and the IP telephony proxy server includes an IP interface to the location manager. If the IP telephony proxy server requires intelligent network services, then the IP telephony proxy server sends an IP telephony session initiation request to the called party at the location manager. The location manager uses the information to query the legacy telephony service control entity for routing information. When the location manager receives a routing response from the service control entity, the location manager maps the response to an IP telephony session control message back to the IP telephony proxy server.
34 Citations
22 Claims
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1. A method, performed by a call control entity, for establishing a telephone call, comprising:
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receiving a call establishment request from a data network; determining whether the call establishment request is associated with an intelligent network service; sending, in response to determining that the call establishment request is associated with an intelligent network service, a Session Initiation Protocol (SIP) invite request to a called party at a SIP redirect server, the SIP invite request causing the SIP redirect server to obtain a new address for the called party; and establishing the telephone call based on the new address. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system comprising:
a network device configured to; receive a telephone call establishment request from a data network, the telephone call establishment request including a called party address, determine whether the telephone call establishment request is associated with an intelligent network service, send, in response to determining that the telephone call establishment request is associated with an intelligent network service, a Session Initiation Protocol (SIP) invite request to a called party at a SIP redirect server to acquire a new address for the called party, and establish a telephone call based on the acquired new address. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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16. A system comprising:
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a Session Initiation Protocol (SIP) component configured to; receive a SIP call establishment request, determine whether the SIP call establishment request is associated with an intelligent network service, acquire first routing information from a remote network device when the SIP call establishment request is associated with an intelligent network service, and establish a telephone call using the first routing information; and an H.323 component configured to; receive an H.323 call establishment request, determine whether the H.323 call establishment request is associated with an intelligent network service, acquire second routing information from the remote network device when the H.323 call establishment request is associated with an intelligent network service, and establish a telephone call using the second routing information. - View Dependent Claims (17, 18)
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19. A network device comprising:
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a first component configured to process Session Initiation Protocol (SIP)-based call establishment requests where, when processing a SIP-based call establishment request, the first component is configured to; determine whether the SIP-based call establishment request is associated with an intelligent network service, acquire routing information from a remote network device when the SIP-based call establishment request is associated with an intelligent network service, and establish a telephone call using the routing information, and a second component configured to process H.323-based call establishment requests. - View Dependent Claims (20)
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21. A network device comprising:
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a first component configured to process Session Initiation Protocol (SIP)-based call establishment requests; and a second component configured to process H.323-based call establishment requests where, when processing an H.323-based call establishment request, the second component is configured to; determine whether the H.323-based call establishment request is associated with an intelligent network service, acquire, by sending a SIP invite request, routing information from a remote network device when the H.323-based call establishment request is associated with an intelligent network service, and establish a telephone call using the routing information. - View Dependent Claims (22)
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Specification