Method for establishing a telecommunication connection in a telecommunication system and telecommunication system
a telecommunication system and telecommunication system technology, applied in the direction of connection management, wireless network protocols, electrical devices, etc., can solve the problem of not being able to process further calls, and the problem of not being able to do so
Inactive Publication Date: 2016-12-22
RINGCENTRAL INC
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Benefits of technology
The patent describes a new invention with certain benefits and features. Its details can be found in the drawings.
Problems solved by technology
However, the CSTA protocol defines the transmitted data, not the transport layer.
Today, programming a telephone number of a subscriber located in a different node is also possible with some systems, but the switching state is not BLF-signaled, and as a consequence, further processing such as call pickup is also not possible.
Method used
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[0031]FIG. 1 illustrates a network of nodes in a LAN environment. Shown is a telecommunication system comprising a network and multiple switching nodes 10, 20, 30, each with a respective local server C1, C2, C3 and associated terminals D1, D2, D3, D4 arranged in the network, as well as a central DSS server DSS for controlling the telecommunication system using a general switching protocol with network trunks N5, N6, N7 and N8. The subscriber terminals (hereinafter also referred to as “terminals”) D1 . . . D4 of a switching node 10, 20, 30 are controlled under a local protocol by the local server C1, C2, C3. A central DSS server (Direct Station Selection server), which is responsible for providing presence information across nodes according to the description of DE 10149983 A1, is typically present in each of the nodes 10, 20, 30, but according to the invention runs preferably only in the main node specified according to the configuration. According to the CSTA Standard ECMA 269, C t...
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In a telecommunication system comprising multiple switching nodes (10, 20, 30) having a respective local server (C1, C2, C3) and associated terminals (D1, D2, D3, D4) located within a network and a central DSS server (DSS) for controlling the telecommunication system by using a general switching protocol, the terminals (D1, D2, D3, D4) of a switching node (10, 20, 30) are controlled by the local server (C1, C2, C3) under a local protocol comprising control commands for node-internal call pickup. The pickup of a call directed from a third terminal (D4) to a first terminal (D3) assigned to a first switching node (10) through a second terminal (D1) assigned to another, second switching node (20) occurs across nodes by using the general switching protocol through transferring the control commands provided in the local protocol for call pickup to the general switching protocol and providing them across nodes through the central DSS server (DSS to the multiple switching nodes (10, 20, 30) located within the network, and converting the registration of a terminal (D1, D2, D3, D4) for call pickup provided in the local protocol to the general switching protocol and forwarding it to the central DSS server.
Description
FIELD OF INVENTION[0001]The present invention concerns a method for establishing a telecommunication connection in a telecommunication system and in particular to the establishment of a telecommunication connection in a telecommunication system by call pickup.BACKGROUND OF THE INVENTION[0002]Modern telecommunication systems, such as IP-based systems, comprise a network and multiple switching nodes, each having a respective local server and associated terminals arranged in the network, as well as a central DSS server for controlling the telecommunication system using a general switching protocol. The “Session Initiation Protocol” (SIP) is a frequently used protocol in IP telephony for establishing a communication session between two or more participants. The protocol is specified in RFC 3261 as well as RFC 4235 and RFC 5359, among others. In connection with the present invention, express reference is made to the RFC 3261 standard and the updates named therein, which are considered kn...
Claims
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Login to View More IPC IPC(8): H04W76/02H04W80/10H04W72/04H04W60/02
CPCH04W76/021H04W60/02H04W88/12H04W72/0406H04W80/10H04L65/1096H04L65/1104H04L65/1046H04L65/1073H04L65/1059H04W76/11H04L65/1053H04W72/20
Inventor RIST, CLAUSWILLMANN, MICHAELGLASER, MARTINVOLKMANN, MICHAEL
Owner RINGCENTRAL INC