Presence-aware private branch exchange (PBX)
First Claim
1. A presence aware communications system comprising:
- a first device;
a second device; and
a third device operative between the first device and the second device, wherein the first device transmits to the third device a first subscription request for establishing presence, the third device receiving the first subscription request and, in response, translating the first subscription request, and generating and routing a second subscription request to the second device based upon retrieved information in the first subscription request.
2 Assignments
0 Petitions
Accused Products
Abstract
A presence aware Private Branch Exchange (PBX) system is provided that has capabilities of presence subscription, notification and management. The system sends notifications to subscribed user agent clients (UACs) indicating that the telephone set is off-hook or on-hook. If the telephone set user interacts with a PBX'"'"'s IVR or voicemail systems, additional types of notification messages such as “out-of-the-office”, “do-not-disturb”, and the like may also be sent. The system may also provide capability for granting or rejecting subscriptions to UACs that want to monitor a telephone user'"'"'s presence state. Optional external subscription and notification servers, coupled to the PBX via IP and telephony trunks, may operate on behalf of the PBX and provide additional presence services.
48 Citations
62 Claims
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1. A presence aware communications system comprising:
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a first device;
a second device; and
a third device operative between the first device and the second device, wherein the first device transmits to the third device a first subscription request for establishing presence, the third device receiving the first subscription request and, in response, translating the first subscription request, and generating and routing a second subscription request to the second device based upon retrieved information in the first subscription request. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A presence aware private branch exchange (PBX) communications system comprising:
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a first device;
a second device; and
a third device operative between the first device and the second device, wherein the second device transmits to the third device a presence change, the third device receiving the presence change and, in response, translating the presence change, and generating and routing a notification to the second device and the second device forwarding the notification to the first device. - View Dependent Claims (36, 37, 38, 39, 40)
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41. A method for establishing a presence aware communications system between a first, second and third device, the method comprising:
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receiving a first subscription request from the first device for establishing presence;
operating on the first subscription request to result in a second subscription request; and
transmitting the second subscription request to the second device based upon retrieved information in the first subscription request. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61)
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62. A method for establishing a presence aware private branch exchange (PBX) communications system between a first, second and third device, the method comprising:
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receiving a presence change from the second device;
operating on the presence change to result in a notification;
receiving the notification from the third device; and
transmitting the notification to the first device.
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Specification