---
title: "Grandstream HA100"
description: "Keep your phone system steady if the main UCM6510 goes down. The HA100 watches two UCM6510 units and switches service to the backup unit automatically, helping reduce downtime for busy voice setups."
url: "https://dev.www.lightningip.com.au/hardware/grandstream-ha100"
canonical: "https://dev.www.lightningip.com.au/hardware/grandstream-ha100"
updated: "2026-10-24"
---

# Grandstream HA100

High availability controller for UCM6510

Keep your phone system steady if the main UCM6510 goes down. The HA100 watches two UCM6510 units and switches service to the backup unit automatically, helping reduce downtime for busy voice setups.

- **Brand:** Grandstream
- **Category:** Analog telephone adapters
- **Price:** $486
- **Stock status:** In stock
- **Order:** [Contact sales](https://dev.www.lightningip.com.au/contact)

## Features

- Automatic failover for UCM6510
- Monitors two UCM6510 units
- Up to 14 status LEDs
- Fast 10 to 50 second switchover

## Specifications

| Specification | Value |
| --- | --- |
| Product type | High availability controller |
| Compatibility | Two Grandstream UCM6510 IP PBXs |
| Failover | Automatic hot-standby switch |
| Switchover time | 10 to 50 seconds |
| Indicators | Up to 14 LED indicators |
| Network refresh | Gratuitous ARP support |
| Warranty | 12 months |