SIP-H.323 gateway implementation to integrate SIP agents into the H.323 system
First Claim
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1. A telecommunications system, comprising:
- a local area network;
at least one H.323 client endpoint coupled to said local area network;
at least one Session Initiation Protocol (SIP) agent coupled to said local area network; and
a gateway coupled to said local area network, said gateway including a SIP agent alias table for storing H.323 aliases for said at least one SIP agent, wherein said gateway is adapted to perform signaling conversion between said at least one H.323 client endpoint and said at least one SIP agent, such that said at least one H.323 endpoint and said at least one SIP agent can communicate over said local area network.
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Abstract
An SIP-H.323 gateway (210) is provided, which functions as a multi-alias H.323 endpoint (204) with one alias representing one SIP agent (206). The SIP-H.323 gateway (210) processes the call signaling conversions and stores and passes media port information to the signaling parties, so that the existence of SIP agents (206) is transparent to the H.323 endpoints (204) and the features are transparently available to the H.323 endpoints.
151 Citations
22 Claims
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1. A telecommunications system, comprising:
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a local area network;
at least one H.323 client endpoint coupled to said local area network;
at least one Session Initiation Protocol (SIP) agent coupled to said local area network; and
a gateway coupled to said local area network, said gateway including a SIP agent alias table for storing H.323 aliases for said at least one SIP agent, wherein said gateway is adapted to perform signaling conversion between said at least one H.323 client endpoint and said at least one SIP agent, such that said at least one H.323 endpoint and said at least one SIP agent can communicate over said local area network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A telecommunications gateway for use in a local area network, the local area network including one or more SIP agents and one or more H.323 endpoints, comprising:
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an H.323 stack;
a Session Initiation Protocol (SIP) engine; and
a SIP agent alias table;
wherein signaling conversion is performed for SIP agents whose aliases are stored in said SIP agent alias table such that said SIP agents can communicate with said one or more H.323 endpoints one said local area network. - View Dependent Claims (12, 13, 14, 15)
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16. A telecommunications method, comprising:
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storing H.323 aliases for at least one SIP agent in a gateway, said gateway and said SIP agent coupled to a local area network; and
using said stored H.323 aliases to perform signaling conversion between at least one H.323 client endpoint coupled to said local area network and said at least one SIP agent. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A telecommunications system, comprising:
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a local area network;
at least one H.323 client terminal coupled to said local area network;
at least one Session Initiation Protocol (SIP) agent coupled to said local area network; and
a gateway coupled to said local area network, the gateway including a SIP agent alias table for storing H.323 aliases for said at least one SIP agent, wherein gateway is adapted to perform signaling conversion between H.323 features and SIP features such that said at least one H.323 terminal and said at least one SIP agent can communicate over said local area network.
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Specification