Redundancy & High Availability

This page describes the TelcoBridges VoIP Gateway high availability features. TelcoBridges' products are designed with the following two goals in mind:

1. Recover from a system failure and minimize the system down-time and network instability, as much as possible. This is achieved with fault tolerance and redundancy designed into the very architecture of the product.
2. Keep active calls open after a fail-over, whenever possible.

TelcoBridges High Availability and Redundancy

TelcoBridges high availability and redundancy is comprised of a collection of features. These features enable customers to add as many HA and redundancy fdeatures to their systems as required.

Definitions

The following is a list of terms that are used in the description of high availability features:

• Active Calls
• Active/Standby
• Load Sharing
• Master/Slave
• Primary/Secondary
• Resynchronization
• Switchover
• Switchover Period
• Transient Calls

TMG800 Features

• Power Supply
• VoIP Network
• Clocking
• Signaling Protocols
• H.248
• TMG-CONTROL

TMG3200 Features

• Power Supply
• VoIP Network
• OC3/STM-1 Interface
• Clocking
• Signaling Protocols
• H.248
• TMG-CONTROL

TMG7800 Features

• Power Supply
• Network
  • VoIP Network
  • Control Network
  • TMS Network
• Tdm Interfaces
• Clocking
• Signaling Protocols
• H.248
• TMG-CONTROL
• Host redundancy
  • Hard Disks

Installation, Maintenance and Provisioning

This section will illustrate how to install, upgrade and configure a high availability system.

First, we will look at the software installation and provisioning (Host redundancy).

• Installing a host redundancy system

• Upgrading a host redundancy system

• Configuring a host redundancy system