Method of and system for providing intelligent network control services in IP telephony
First Claim
1. A system comprising:
- a call control entity comprising;
a Session Initiation Protocol (SIP) proxy device to;
receive a first SIP invite request for a first called party, the first SIP invite request being associated with a first intelligent network service,send a second SIP invite request to a location manager in response to receiving the first SIP invite request that is associated with a first intelligent network service,receive, from the location manager, a first address for the first called party at a first egress Internet Protocol (IP) telephony device, andestablish a first telephone call using the received first address, andan H.323 device to;
receive an H.323 call establishment message for a second called party, the H.323 call establishment message being associated with a second intelligent network service,send a third SIP invite request to the location manager in response to receiving the H.323 call establishment message that is associated with a second intelligent network service,receive, from the location manager, a second address for the second called party at a second egress IP telephony device, andestablish a second telephone call using the received second address.
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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.
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Citations
20 Claims
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1. A system comprising:
a call control entity comprising; a Session Initiation Protocol (SIP) proxy device to; receive a first SIP invite request for a first called party, the first SIP invite request being associated with a first intelligent network service, send a second SIP invite request to a location manager in response to receiving the first SIP invite request that is associated with a first intelligent network service, receive, from the location manager, a first address for the first called party at a first egress Internet Protocol (IP) telephony device, and establish a first telephone call using the received first address, and an H.323 device to; receive an H.323 call establishment message for a second called party, the H.323 call establishment message being associated with a second intelligent network service, send a third SIP invite request to the location manager in response to receiving the H.323 call establishment message that is associated with a second intelligent network service, receive, from the location manager, a second address for the second called party at a second egress IP telephony device, and establish a second telephone call using the received second address. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system comprising:
an H.323 device to; receive an H.323 call establishment request for a called party, determine, in response to receiving the H.323 call establishment request, whether the H.323 call establishment request is associated with an intelligent network service, send a first Session Initiation Protocol (SIP) invite request to a location manager in response to determining that the H.323 call establishment request is associated with an intelligent network service, receive, from the location manager, an address for the called party at an egress Internet Protocol (IP) telephony device, and establish a telephone call using the received address. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method comprising:
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receiving an H.323 call establishment request for a called party, the received H.323 message being associated with an intelligent network service; sending, in response to receiving the H.323 call establishment request, a first Session Initiation Protocol (SIP) invite request to a location manager in response to determining that the H.323 call establishment request is associated with an intelligent network service; receiving, from the location manager, an address for the called party at an egress Internet Protocol (IP) telephony device; and establishing a telephone call using the received address. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification