Call set-up server

• US 6,108,705 A
• Filed: 09/09/1997
• Issued: 08/22/2000
• Est. Priority Date: 06/29/1995
• Status: Expired due to Term

• Current Assignee: Unwired Planet LLC (JP Morgan Chase & Co)
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Svennevik, Anders C., Lundberg, Stefan R.
• Primary Examiner(s): Follansbee, John A.
• Application Number:
  US08/925,858
• Time in Patent Office: 1,078 Days
• Field of Search: 370/60, 370/360, 709/227
• US Class Current: 709/227
• CPC Class Codes: H04L 12/2856 Access arrangements, e.g. Internet access asynchronous transfer mode networks H04L12/5601; broadband local area networks H04L12/2801; optical access or distribution networks H04Q11/0067; access to open networks H04L12/5691; digital subscriber line end-user equipment and bit-level processing of data on a PSTN-based network H04M11/00; home network gateways H04L12/2834; wireless access networks H04W
• CPC Class Codes: H04L 12/2876 Handling of subscriber policies group policies management H04L41/0893
• CPC Class Codes: H04L 2012/5619 Network Node Interface, e.g. tandem connections, transit switching
• CPC Class Codes: H04L 2012/563 Signalling, e.g. protocols, reference model
• CPC Class Codes: H04L 65/1043 Gateway controllers, e.g. media gateway control protocol [MGCP] controllers
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/401 wherein the services involve a main real-time session and one or more additional parallel real-time or time sensitive sessions, e.g. white board sharing or spawning of a subconference
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04Q 11/0435 Details
• CPC Class Codes: H04Q 11/0478 Provisions for broadband connections
• CPC Class Codes: H04Q 2213/1305 Software aspects
• CPC Class Codes: H04Q 2213/1307 Call setup
• CPC Class Codes: H04Q 2213/13093 Personal computer, PC
• CPC Class Codes: H04Q 2213/13204 Protocols
• CPC Class Codes: H04Q 2213/13209 ISDN
• CPC Class Codes: H04Q 2213/13248 : Multimedia
• CPC Class Codes: H04Q 2213/1329 : Asynchronous transfer mode, ATM
• CPC Class Codes: H04Q 2213/13337 : Picturephone, videotelephony
• CPC Class Codes: H04Q 2213/13389 : LAN, internet

Abstract

A communication system is provided which permits the transfer of broadband multimedia data through a network. The communication system includes network terminals, a transmission backbone, and a call set-up server. The call set-up server controls call handling and connection handling. The call set-up server includes an access part, a user part, and a central part used for call handling. The central part sets up a call between parties in the system and operates independently from the access part and the user part, enabling a new access part to be added without affecting the existing central part.

Claims

1. In a system for transferring data in a communication network, comprising network terminals and a transmission backbone, a call set-up server for handling call control, the call set-up server comprising:

an access part holding information representing physical equipment in the network, which controls how a call is represented to the network by the physical equipment, and how the call is represented to the physical equipment by the network,

a user part holding information representing a user, which selects services based on the user information, independently of the information held in the access part,

a central part representing services, which sets up a connection between two parties in the network independently of the information in the access part and the user part, and

interfaces connecting the access part to the user part and the user part to the central part, for permitting interaction between the parts,

wherein the call comprises a call portion representing data for transmission between the two parties and a connection portion representing connection points;

the connection comprises a route through the communication network that is based on the connection points and that is taken by the data;

the call portion and the connection portion are handled separately; and

each service comprises a first part that relates to the physical equipment, a second part that relates to the user, and a third part that is independent of the first and second parts.

2. The call set-up server of claim 1, wherein new access parts or user parts can be added or old access parts or user parts can be modified without affecting existing services in the central part.

3. The call set-up server of claim 1, wherein the data transferred comprises multimedia data.

4. The call set-up server of claim 1, wherein the access part, user part, central part, and interfaces form software architecture of the call set-up server.

5. In a system for transferring data in a communication network, comprising network terminals and a transmission backbone, a method for handling call control, the method comprising the steps of:

holding information in an access part representing physical equipment in the network to control how a call is represented to the network by the physical equipment and how the call is represented to the physical equipment by the network,

holding information in a user part representing a user, which selects services based on the user information, independently of the information held in the access part,

setting up a connection between two parties in the network independently of the information representing physical equipment and a user, in a central part, and

connecting the access part to the user part and the user part to the central part using interfaces, thus permitting interaction between the parts,

wherein the call comprises a call portion representing data for transmission between the two parties and a connection portion representing connection points;

the connection comprises a route through the communication network that is based on the connection points and that is taken by the data;

the call portion and the connection portion are handled separately; and

each service comprises a first part that relates to the physical equipment, a second part that relates to the user, and a third part that is independent of the first and second parts.