System and method for transferring a call bridge between communication devices

• US 9,210,268 B2
• Filed: 04/07/2014
• Issued: 12/08/2015
• Est. Priority Date: 05/17/2011
• Status: Active Grant

• Current Assignee: Damaka, Inc.
• Original Assignee: Damaka, Inc.
• Inventors: Chaturvedi, Sivakumar, Gundabathula, Satish, Hiremath, Rashmi
• Primary Examiner(s): Kizou, Hassan
• Assistant Examiner(s): Daya, Tejis
• Application Number:
  US14/247,018
• Publication Number:
  US 20140219435A1
• Time in Patent Office: 610 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04L 12/1818 Conference organisation arrangements, e.g. handling schedules, setting up parameters needed by nodes to attend a conference, booking network resources, notifying involved parties
• CPC Class Codes: H04L 12/185 with management of multicast group membership
• CPC Class Codes: H04M 3/56 Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities video conference systems H04N7/15
• CPC Class Codes: H04M 3/562 where the conference facilities are distributed
• CPC Class Codes: H04N 7/15 Conference systems

Abstract

An improved system and method are disclosed for conference bridging. In one example, the method enables a device engaged in a conference call as a participant to bridge the conference call and to transfer the bridge to another device engaged in the conference call as a participant.

Claims

1. A method for use by a first communication device comprising:

participating, by the first communication device, in a first communication session with a second communication device, wherein the second communication device is serving as a conference call bridge for a conference call in which the first communication device is involved via the first communication session;

detecting, by the first communication device, a change in a first set of parameters of the first communication device, wherein the first set of parameters identify media, device, and network capabilities of the first communication device;

sending, by the first communication device, a message to the second communication device indicating the change;

receiving, by the first communication device, a notification from the second communication device after sending the message indicating the change, wherein the notification informs the first communication device that the second communication device is transferring the conference call bridge to the first communication device; and

bridging, by the first communication device, the first communication session and a second communication session between the first communication device and a third communication device to support the conference call for the first, second, and third communication devices.

2. The method of claim 1 further comprising:

receiving, by the first communications device, a first set of parameters identifying media, device, and network capabilities of the second communication device and a second set of parameters identifying media, device, and network capabilities of the third communication device;

receiving, by the first communication device, a message from the second communication device indicating a change in at least one of the device and network capabilities of the second communication device; and

determining, by the first communication device, which of the first and second communication devices is to serve as the bridge for the conference call based on the change in the at least one of the device and network capabilities of the second communication device.

3. The method of claim 2 further comprising transferring, by the first communication device, the bridge to the second communication device if the re-determining identifies that the second communication device should serve as the bridge.

4. The method of claim 3 wherein the transferring includes:

sending, by the first communication device, a message to the second communication device that the second communication device is to be the bridge; and

sending, by the first communication device, a message to the third communication device that the second communication session is being closed.

5. The method of claim 1 further comprising:

detecting, by the first communication device, a change in at least one of the device and network capabilities of the first communication device; and

determining, by the first communication device, which of the first, second, and third communication devices is to serve as the bridge for the conference call based on the change in the at least one of the device and network capabilities of the first communication device.

6. The method of claim 5 further comprising transferring, by the first communication device, the bridge to the second communication device if the determining identifies that the second communication device should serve as the bridge.

7. The method of claim 5 wherein the determining, by the first communication device, which of the first, second, and third communication devices is to serve as the bridge for the conference call includes comparing at least one of a processing capability, an available memory, and an available network bandwidth of the first, second, and third communication devices to identify which of the first, second, and third communication devices has at least one of the highest processing capability, the most available memory, and the most available network bandwidth.

8. The method of claim 1 further comprising:

receiving, by the first communication device, a request from a fourth communication device to join the conference call;

receiving, by the first communication device, a fourth set of parameters identifying media, device, and network capabilities of the fourth communication device; and

determining, by the first communication device, which of the first, second, third, and fourth communication devices is to serve as the bridge for the conference call based on the first, second, third, and fourth sets of parameters.

9. The method of claim 8 further comprising transferring, by the first communication device, the bridge to the fourth communication device if the re-determining identifies that the fourth communication device should serve as the bridge.

10. A first communication device comprising:

a network interface;

a processor coupled to the network interface; and

a memory coupled to the processor and containing a plurality of instructions for execution by the processor, the instructions including instructions for

participating in a first communication session with a second communication device, wherein the second communication device is serving as a conference call bridge for a conference call in which the first communication device is involved via the first communication session;

detecting a change in a first set of parameters of the first communication device, wherein the first set of parameters identify media, device, and network capabilities of the first communication device;

sending a message to the second communication device indicating the change;

receiving a notification from the second communication device after sending the message indicating the change, wherein the notification informs the first communication device that the second communication device is transferring the conference call bridge to the first communication device; and

bridging the first communication session and a second communication session between the first communication device and a third communication device to support the conference call for the first, second, and third communication devices.

11. The first communication device of claim 10 further comprising instructions for:

detecting a change in at least one of the device and network capabilities of the first communication device; and

determining which of the first, second, and third communication devices is to serve as the bridge for the conference call based on the change in the at least one of the device and network capabilities of the first communication device.

12. The first communication device of claim 11 further comprising instructions for transferring the bridge to the second communication device if the determining identifies that the second communication device should serve as the bridge.