Method and apparatus to facilitate inter-domain presence services
First Claim
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1. An apparatus to facilitate inter-domain presence services comprising:
- a first presence server comprising a part of a first communications domain;
a second presence server comprising a part of a second communication domain, which second communications domain is at least partially different from the first communications domain;
wherein the first presence server and the second presence server are arranged and configured to communicate presence information regarding client devices of their respective communications domains between each other.
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Abstract
A first presence server as comprises a part of a first communications domain and a second presence server as comprises a part of a second communications domain are configured and arranged to communicate presence information regarding the respective client devices of their respective communications domains. Pursuant to one approach, session initiation protocol messaging facilitates such an exchange of presence information. Pursuant to one embodiment, inter-domain presence information can be cached at a receiving presence server to permit subsequent use when responding to a local request for inter-domain presence information.
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Citations
29 Claims
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1. An apparatus to facilitate inter-domain presence services comprising:
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a first presence server comprising a part of a first communications domain;
a second presence server comprising a part of a second communication domain, which second communications domain is at least partially different from the first communications domain;
wherein the first presence server and the second presence server are arranged and configured to communicate presence information regarding client devices of their respective communications domains between each other. - View Dependent Claims (2, 3, 4, 5)
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6. A method to facilitate inter-domain presence services comprising:
at a first presence server as comprises a part of a first communications domain;
determining a need to source a SUBSCRIBE message;
directing a SUBSCRIBE message to a second presence server as comprises a part of a second communications domain regarding a second communications domain client device. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A presence server comprising:
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a controller;
a first memory operably coupled to the controller and having presence information regarding local communications domain client devices stored therein;
a second memory operably coupled to the controller and having presence information regarding at least one non-local communications domain client device stored therein. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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Specification