Provisioning of Redundant Sip Proxy Resources
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Accused Products
Abstract
A resolution of the address of an SIP proxy in an SIP network, with redundant SIP proxy resources, is provided. To establish a connection in an SIP network, an SIP client typically transmits a request to a DNS server system to obtain an address to gain access to SIP proxy resources. The SIP proxy resources are provided in the form of SIP proxy servers which are part of a peer-to-peer group. Messages are exchanged within the peer-to-peer group via a peer-to-peer protocol in order to communicate responsibilities for SIP domains or user-agent addresses. Adjustable responsibilities are defined within group. The address of the SIP proxy server responsible for the request of the SIP client is made available to the DNS server system so the DNS server system can forward the address to the SIP client so as to allow the SIP client to access the relevant Sip proxy server.
41 Citations
40 Claims
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1-21. -21. (canceled)
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22. A method for resolving the address of an SIP proxy in an SIP network with provisioning of redundant SIP proxy resources, comprising:
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providing SIP proxy resources in the form of a plurality of SIP proxy servers, wherein the SIP proxy resources are accessible by a first SIP client; organizing the SIP proxy servers in a peer-to-peer group forming a peer-to-peer network, the peer-to-peer network having responsibility for the first SIP client; exchanging messages within the peer-to-peer group via a peer-to-peer protocol, through which responsibilities for SIP domains or user agent addresses are made known; and performing an address resolution within the peer-to-peer network for a connection setup between the first SIP client and a second SIP client when the peer-to-peer network has responsibility for the first SIP client. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification