Method for establishing a communication connection in a direct communication network

• US 7,609,663 B2
• Filed: 08/13/2004
• Issued: 10/27/2009
• Est. Priority Date: 09/26/2003
• Status: Expired due to Fees

• Current Assignee: Unify GmbH & Co. KG (Atos SE)
• Original Assignee: Siemens AG
• Inventors: Uecker, Rainer, Neuhaus, Ralf
• Primary Examiner(s): Moe, Aung S
• Assistant Examiner(s): ELLIOTT IV, BENJAMIN H
• Application Number:
  US10/573,676
• Publication Number:
  US 20070005720A1
• Time in Patent Office: 1,901 Days
• Field of Search: 370/420, 370/312, 370/432, 455/417, 455/456.1, 455/456.2, 455/463, 709/206, 709/212, 709/217, 709227-228, 709230-231, 709/239, 709/245, 379/211.01, 379/211.02, 379/212.01, 379/215.01, 379/221.01
• US Class Current: 370/312
• CPC Class Codes: H04L 61/4535 using an address exchange platform which sets up a session between two nodes, e.g. rendezvous servers, session initiation protocols [SIP] registrars or H.323 gatekeepers
• CPC Class Codes: H04L 61/4552 Lookup mechanisms between a plurality of directories; Synchronisation of directories, e.g. metadirectories
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1106 Call signalling protocols; H.323 and related
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04M 3/54 Arrangements for diverting calls for one subscriber to another predetermined subscriber based on the calling party profile H04M3/42059; based on location H04M3/42348; based on presence H04M3/42365; to voice mail H04M3/53308
• CPC Class Codes: H04M 7/0063 where the network is a peer-to-peer network

Abstract

A method for establishing a communication connection between two subscribers of a plurality of subscribers in a direct communication network is provided. Subscriber address information required for establishing paired communication connections between the subscribers is stored in the plurality of subscribers in a distributed manner; a searching subscriber sends a broadcast request message aimed at the establishment of at least one communication connection between a calling subscriber and at least one sought subscriber; each subscriber receiving the broadcast request message sends a response message containing subscriber address information required for the at least one communication connection, provided that the emission of a response message is associated therewith according to the respective functionality thereof; and said subscriber address information is then used to establish the communication connection between the calling subscriber and the at least one sought subscriber.

Claims

1. A method for setting up a communication link between a plurality of clients in a communication network, comprising:

storing client address information in a distributed form for the plurality of clients;

establishing a waiting communication link between a sought client and a waiting destination client;

the waiting, destination client sending a waiting destination descriptor;

transmitting a broadcast request message from a searching client;

the waiting destination client sending a response message comprising a client address information to the searching client; and

the waiting destination client sending signaling information configured for setting up the communication link between the searching client and the sought client.

2. The method according to claim 1 wherein the client address information is stored in at least one database.

3. The method according to claim 2, wherein the stored client address information describe clients in a call transfer group, wherein the broadcast message is transmitted to the call transfer group clients described in the stored client address information, and wherein the clients involved in the communication link are in a free operating state at a start of the sending of signaling information.

4. The method according to claim 1 wherein the signaling information is rejected or not answered within a time period by the sought client;

and wherein the broadcasted message includes an identifier for the sought client, and wherein the client address information in the response message is for a call diversion client.

5. The method according to claim 1 wherein the signaling information is sent in a diversion message.

6. The method according to claim 5, wherein the response message is comprised of a client address information item.

7. The method according to claim 1 wherein the searching client belongs to a call transfer group, and the method further comprising transferring the waiting communication link to the searching client using the stored client address information that describes clients in the call transfer group.

8. The method according to claim 1 wherein the communication link is formed from transferring the waiting communication link to the searching client via the waiting destination client.

9. The method according to claim 8, wherein the sought client is a client in a call transfer group, wherein the client address information in the response message is for the sought client, and wherein the communication link is set up between the searching client and the sought client.

10. The method according to claim 1 wherein the stored client address information describe clients in a group.

11. The method according to claim 1 wherein the communication network is a directly communicating communication network.

12. The method according to claim 11, wherein the waiting destination descriptor is sent to the searching client.

13. The method according to claim 11, wherein the sending of signaling information is effected by the sending of the response message to the searching client.

14. The method according to claim 1 wherein the client address information in the response message is stored by the searching client in a database, and wherein the database is accessed to set up the communication link.

15. The method according to claim 1 wherein the broadcast message comprises at least one filter criterion for selecting particular clients, and wherein the waiting destination client meets the at least one filter criterion.

16. The method according to claim 1 wherein the broadcast message comprises at least on filter criterion for selecting particular clients, and wherein the waiting destination client has a property that meets the at least on filter criterion.