Hot Standby

High availability solution for 24/7 response.

What Is Hot Standby?

Basically, PBX Hot Standby pertains to a redundant implementation that allows you to create a mirroring server pair and recover immediately when failure occurs.As a fully automated disaster recovery mechanism, PBX Hot Standby connects two identical PBX servers (the primary server and the secondary server) to enable real-time data replication and constantly monitor the operation status of both systems.

When the primary server fails, the secondary server will automatically switch all system control to the secondary server. Thus, the downtime is kept to an absolute minimum and communications can continue to operate as usual. The failover is automatic and almost instantaneous. You can also bypass automatic failover and manage the transition on your own schedule.

How Hot Standby Works on Yeastar Phone System?

The Hot Standby on Yeastar PBX System (the appliance and software editions) enables the highest level of system resilience while ensuring the easiest deployment possible. It’s less than a minute to connect the redundant Hot Standby PBX pair and the service will keep running in the background to ensure real-time data replica and seamless failover.

PBX Hot Standby Redundancy Solution

Fast 1 to 10 seconds automatic recovery in event of any failure.

Shared virtual IP between the paired active and hot-standby PBX servers, which ensures a complete system switch to the standby server when the active server fails, including all IP phones and 3rd-party integrations connected to the PBX.

Instant email notification via email or call when a failover event occurs.

The Benefits of PBX Hot Standby

Enhanced Reliability.
Hot standby allows your business phone system to function with zero or minimal downtime. The Secondary server is always here to back you up and will assumes all telephony responsibilities when the Primary server fails.

Improved Performance.
A redundant system can reduce the impact to your customers and userswhenever you need to take the system offline to perform necessary maintenance tasks, such as nightly backups, system upgrade, etc.

Easy Configuration.
It doesn’t require technical expertise to deploy the solution. With an intuitive interface, it takes only 1 minute to do the pairing PBX server authentication. You can also check if your hot standby functions well with simple status indicators.

Prompt Notification.
In event of any PBX server failure or automatic failover, your IT team will be prompted with email or phone calls. There is no gap in-between. Youcan fix the failed system right away while all your phone calls on the system are not impacted.

Common FAQs

What is the prerequisite on provisioning PBX Hot Standby?


Product Model

Local Network Environment (LAN)

Firmware and Hardware Version

Software Configuration

For hardware PBX: expansion boards and modules should be installed on the same slots.

How to configure Hot Standby on Yeastar PBX System?


For P-Series Phone System: Appliance Edition | Software Edition

For S-Series VoIP PBX: Configuration Guide

What type of company benefits from Hot Standby?


Yeastar P-Series Phone System

Complete Communications Solution

Available both in the cloud and on-premises, Yeastar P-Series Phone System unites calls, video, omnichannel messaging, integrations and more in one simple system for your seamless communications anywhere.

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