Avaya Inc.

Other

Vonage Network, LLC

Vonage America Inc.

Weiping Guo

Wu Chou

Zhi Qiang Zhao

Feng Liu

Kai Xin

Boaz Zehavi

Arthur Wilton

Joseph Guo

Marc Lefar

Vivekananda Velamala

Mark Wootton

Lookman Y Fazal

Methods and systems for voice and video messaging are provided here. In some embodiments a method for voice and video messaging may include establishing a telecommunication session with a calling device associated with a first user in response to an indication that a call request from the calling device directed to a called identifier associated with a second user failed, providing to the calling device an option to leave a video message and an option to leave an audio message, receiving a selection from the calling device indicating the selection of the option to leave a video message, disconnecting the established telecommunication session, and receiving a video message from the calling device.

Methods and systems for voice and video messaging

A system for enabling communication between a first domain and a second domain is disclosed. At least the first domain is protected by a firewall. A first data-processing system is provided in the first domain and a second data-processing system provided in second domain. The second domain hosts an application that the first domain desires to access. To enable the communication between the two domains a tunnel is established through the firewall. The tunnel runs from the first data-processing system to the second data-processing system. The second data-processing system provides a web-proxy interface to interface to the application and also acts as a tunnel gateway.

Framework for communicating across a firewall

High availability (HA) protection is provided for an executing virtual machine. At a checkpoint in the HA process, the active server suspends the virtual machine; and the active server copies dirty memory pages to a buffer. During the suspension of the virtual machine on the active host server, dirty memory pages are copied to a ring buffer. A copy process copies the dirty pages to a first location in the buffer. At a predetermined benchmark or threshold, a transmission process can begin. The transmission process can read data out of the buffer at a second location to send to the standby host. Both the copy and transmission processes can operate asynchronously on the ring buffer. The ring buffer cannot overflow because the transmission process continues to empty the ring buffer as the copy process continues. This arrangement allows for using smaller buffers and prevents buffer overflows, and thereby, it reduces the VM suspension time and improves the system efficiency.

Method and apparatus for efficient memory replication for high availability (HA) protection of a virtual machine (VM)

High availability (HA) protection is provided for an executing virtual machine. A standby server provides a disk buffer that stores disk writes associated with a virtual machine executing on an active server. At a checkpoint in the HA process, the active server suspends the virtual machine; the standby server creates a checkpoint barrier at the last disk write received in the disk buffer; and the active server copies dirty memory pages to a buffer. After the completion of these steps, the active server resumes execution of the virtual machine; the buffered dirty memory pages are sent to and stored by the standby server. Then, the standby server flushes the disk writes up to the checkpoint barrier into disk storage and writes newly received disk writes into the disk buffer after the checkpoint barrier.

Method and apparatus for high availability (HA) protection of a running virtual machine (VM)

High availability (HA) protection is provided for an executing virtual machine. At a checkpoint in the HA process, the active server suspends the virtual machine; and the active server copies dirty memory pages to a buffer. During the suspension of the virtual machine on the active host server, dirty memory pages are copied to a ring buffer. A copy process copies the dirty pages to a first location in the buffer. At a predetermined benchmark or threshold, a transmission process can begin. The transmission process can read data out of the buffer at a second location to send to the standby host. Both the copy and transmission processes can operate substantially simultaneously on the ring buffer. As such, the ring buffer cannot overflow because the transmission process continues to empty the ring buffer as the copy process continues. This arrangement allows for smaller buffers and prevents buffer overflows.

Growing community of inventors

Hillsborough, NJ, United States of America

Weiping Guo