METHOD FOR TRANSFERRING SESSION IN CONVERGED INTERNET PROTOCOL MESSAGING SYSTEM

• US 20100215036A1
• Filed: 02/22/2010
• Published: 08/26/2010
• Est. Priority Date: 02/20/2009
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd., Seoul National University Industry Foundation (Seoul National University)
• Original Assignee: Samsung Electronics Co. Ltd., Seoul National University Industry Foundation (Seoul National University)
• Inventors: Park, Sung-Jin, Lee, Seung-Yong, Lee, Kyung-Tak, Eom, Hyeonsang
• Granted Patent: US 9,246,863 B2
• Time in Patent Office: Days
• US Class Current: 370/352
• CPC Class Codes: H04L 51/42 Mailbox-related aspects, e.g. synchronisation of mailboxes
• CPC Class Codes: H04L 51/56 Unified messaging, e.g. interactions between e-mail, instant messaging or converged IP messaging [CPM]
• CPC Class Codes: H04L 65/1083 In-session procedures
• CPC Class Codes: H04L 65/1094 Inter-user-equipment sessions transfer or sharing
• CPC Class Codes: H04M 3/58 Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party substation line holding circuits H04M1/80
• CPC Class Codes: H04M 7/006 Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42

Abstract

A method is provided for transferring a session between multiple devices by a target device, in which the target device selects a particular session of a source device and sends a request for session transfer for the selected session to a call server, the target device acquires from the call server data that has been transmitted from the remote party'"'"'s device of the particular session and temporarily stored in the call server after the session transfer request, and the target device sends a message indicating completed acquisition of the temporarily stored data to the call server, and receives the particular session transferred in response thereto.

Claims

1. A method for transferring a session between multiple devices by a target device, comprising:

selecting, by the target device, a particular session of a source device and a remote device, and sending a request for session transfer for the selected particular session to a call server;

acquiring, from the call server, data that has been transmitted from the remote device of the particular session and temporarily stored in the call server after the session transfer request; and

sending a message indicating completed acquisition of the temporarily stored data to the call server, and receiving, by the target device, the particular session transferred in response thereto.

2. The method of claim 1, further comprising acquiring a session history from the call server, occurring one of before and after receiving the transferred particular session.

3. The method of claim 2, wherein at least one of acquiring the temporarily stored data and acquiring the session history before receiving the transferred particular session comprises acquiring the temporarily stored data and the session history through a separate session that is set up between the target device and the call server in response to the session transfer request.

4. The method of claim 2, wherein acquiring the session history from the call server after receiving the transferred particular session comprises acquiring the session history through the transferred particular session.

5. The method of claim 1, further comprising acquiring a session history stored in a message &

media storage upon receiving a message instructing to acquire the session history from the message &

media storage from the call server, occurring one of before and after receiving the transferred particular session.

6. A method for acquiring a session list by a target device for session transfer between multiple devices, comprising:

acquiring, by the target device, a device list by sending a request for the device list to a network;

requesting a call server to generate a separate session for acquiring a session list of a source device included in the acquired device list;

acquiring the session list through the generated separate session; and

closing the generated separate session.

7. The method of claim 6, wherein requesting a call server to provide a session list comprises using a session request message including information on the source device, the session list of which is requested, wherein the session request message has one of SIP INFO, SIP MESSAGE, and SIP SUBSCRIBE formats.

8. A method for transferring a session between multiple devices in a call server, comprising:

beginning temporary storage of data transmitted from a remote party device of a particular session upon receiving a request for session transfer for the particular session of a source device from a target device;

generating a separate session with the target device for transmission of the temporarily stored data;

if the generation of the separate session is completed, ending the temporary storing of data and transmitting the temporarily stored data to the target device through the separate session; and

transferring the particular session to the target device upon receiving a message indicating completed reception of the temporarily stored data from the target device.

9. The method of claim 8, further comprising transmitting a session history of the particular session to the target device, occurring one of before and after transferring the particular session.

10. The method of claim 9, wherein transmitting a session history of the particular session to the target device before transferring the particular session comprises transmitting the session history through the separate session.

11. The method of claim 9, wherein transmitting a session history of the particular session to the target device after transferring the particular session comprises transmitting the session history through the transferred particular session.

12. The method of claim 9, wherein transmitting a session history comprises transmitting a session history stored on the call server if the session history is stored on the call server.

13. The method of claim 9, wherein transmitting a session history comprises:

acquiring a session history of the particular session from a message &

media storage if the session history is stored in the message &

media storage; and

transmitting the acquired session history of the particular session.

14. The method of claim 12, wherein transmitting the session history before transferring the particular session comprises transmitting the session history through the separate session.

15. The method of claim 13, wherein transmitting the session history before transferring the particular session comprises transmitting the session history through the separate session.

16. The method of claim 12, wherein transmitting the session history after transferring the particular session comprises transmitting the session history through the transferred particular session.

17. The method of claim 13, wherein transmitting the session history after transferring the particular session comprises transmitting the session history through the transferred particular session

18. The method of claim 8, further comprising sending to the target device a message instructing it to acquire a session history of the particular session from a message &

media storage, occurring one of before and after the transferring particular session.

19. The method of claim 18, wherein sending a message instructing to acquire a session history comprises using an SIP MESSAGE format including information about a location of the message &

media storage, in which the session history is stored.

20. A method for transmitting a session list by a call server for session transfer between multiple devices connected to the call server, comprising:

generating a requested separate session upon receiving a request for a separate session for transmission of a session list of a source device from a target device; and

upon receiving a request for transmission of the session list from the target device, transmitting the session list of the source device to the target device through the generated separate session.

21. The method of claim 20, wherein transmitting the session list to the target device comprises using a response message including session list information of the source device managed by the call server, wherein the response message has one of SIP INFO, SIP MESSAGE, and SIP SUBSCRIBE formats.