Method and communication system for setting up an H.323 or SIP connection from a source network to a connection destination which is external to the source network
First Claim
1. A method for setting up an H.323 or SIP connection from a source network to a connection destination which is external to the source network and is identified by logical address information, comprising:
- conveying H.323 or SIP connection setup signaling from a first gateway device associated with the source network to a second gateway device via a first transit network;
conveying H.323 or SIP connection setup signaling from the second gateway device to a third gateway device via a second transit network, the third gateway being associated with a communication network which is routed to the connection destination, wherethe first gateway device uses at least one section of the logical address information to derive a first transport address which identifies the second gateway device in the first transit network the first transport address being used to convey the H.323 or SIP connection setup signaling to the second gateway device, andthe second gateway device uses at least one further section of the logical address information to derive a second transport address which identifies the third gateway device in the second transit network, the second transport address being used to convey the H.323 or SIP connection setup signaling to the third gateway device whereinthe source network has an H.323 or SIP gatekeeper for controlling H.323 or SIP connections internal to the source network,the first gateway device has a first H.323 or SIP interface to the source network and a second H.323 or SIP interface to the first transit network, andthe first H.323 or SIP interface is designed for operation in a gatekeeper-controlled H.323 or SIP mode, and the second H.323 or SIP interface is designed for simultaneous operation in a gatekeeperless H.323 or SIP mode.
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Accused Products
Abstract
An H.323 or SIP connection is set up from a source network (LAN1) via at least one packet-oriented transit network (WAN1, WAN2) to a connection destination (EG2) which is external to the source network. The connection is set up via gateway devices (GW1, . . . , GW4) which are cascaded between networks and respectively manage only access to gateway devices and communication devices which are logically directly adjacent. In this context, H.323 connection setup signaling (SET1, . . . , SET4) is conveyed, using logical address information (030-222) or sections thereof (030, 030-2), from gateway device to gateway device until it reaches the connection destination (EG2).
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Citations
16 Claims
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1. A method for setting up an H.323 or SIP connection from a source network to a connection destination which is external to the source network and is identified by logical address information, comprising:
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conveying H.323 or SIP connection setup signaling from a first gateway device associated with the source network to a second gateway device via a first transit network; conveying H.323 or SIP connection setup signaling from the second gateway device to a third gateway device via a second transit network, the third gateway being associated with a communication network which is routed to the connection destination, where the first gateway device uses at least one section of the logical address information to derive a first transport address which identifies the second gateway device in the first transit network the first transport address being used to convey the H.323 or SIP connection setup signaling to the second gateway device, and the second gateway device uses at least one further section of the logical address information to derive a second transport address which identifies the third gateway device in the second transit network, the second transport address being used to convey the H.323 or SIP connection setup signaling to the third gateway device wherein the source network has an H.323 or SIP gatekeeper for controlling H.323 or SIP connections internal to the source network, the first gateway device has a first H.323 or SIP interface to the source network and a second H.323 or SIP interface to the first transit network, and the first H.323 or SIP interface is designed for operation in a gatekeeper-controlled H.323 or SIP mode, and the second H.323 or SIP interface is designed for simultaneous operation in a gatekeeperless H.323 or SIP mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A communication system for setting up an H.323 or SIP connection from a source network to a connection destination which is external to the source network and is identified by logical address information, comprising:
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a first gateway device for conveying H.323 or SIP connection setup signaling from the source network to a first transit network; a second gateway device for conveying the H.323 or SIP connection setup signaling from the first transit network to a second transit network; and a third gateway device for conveying the H.323 or SIP connection setup signaling from the second transit network to a communication network which is routed to the connection destination, wherein in the first gateway device, at least one section of the logical address information has an associated transport address identifying the second gateway device to the first transit network, and, in the second gateway device, at least one further section of the logical address information has an associated transport address identifying the third gateway device to the second transit network, and where the gateway devices have a respective switching devices for deriving transport addresses from the logical address information and for conveying H.323 or SIP connection setup signaling using the derived transport addresses wherein the source network has an H.323 or SIP gatekeeper for controlling H.323 or SIP connections internal to the source network, the first gateway device has a first H.323 or SIP interface to the source network and a second H.323 or SIP interface to the first transit network, and the first H.323 or SIP interface is designed for operation in a gatekeeper-controlled H.323 or SIP mode, and the second H.323 or SIP interface is designed for simultaneous operation in a gatekeeperless H.323 or SIP mode. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification