Acewo One-Button Hands-Free Intercom: A 4G Wireless Emergency Call System That Only Requires Power

In environments such as tunnels, industrial parks, unattended

locations, or emergency access routes, unstable networks

and difficult cabling are often the biggest obstacles to building

emergency communication systems. Addressing this industry

pain point, the Acewo One-Button Hands-Free Intercom System

was developed—it provides stable and clear emergency call

communication without relying on traditional networks, requiring

only power.

I. System Overview: A Truly "Plug-and-Play" Emergency

Intercom Solution

The Acewo One-Button Hands-Free Intercom is an emergency

call system based on 4G wireless communication technology, 

consisting of a main unit and extension units.

The system requires no complex network deployment, does

not rely on fiber optics or LANs, and only needs a power source

to operate, significantly reducing construction difficulty and 

deployment costs.

Core advantages summarized in one sentence: Works with

power, one-button communication in case of emergency.

II. Equipment Features: Industrial-Grade Design, Clear

Status Indication

The Acewo one-button hands-free intercom's hardware

design fully considers industrial and outdoor application

scenarios:

Silver metal casing

Rugged and durable, impact-resistant and 

corrosion-resistant, suitable for long-term operation

Single power supply

No additional network equipment required, simpler

installation

4G / LAN / SIP status indicator lights

Clearly visible device operating status, more 

efficient maintenance

Both main unit and extension units can operate 

independently

Not reliant on traditional network architecture, more 

flexible deployment

III. Core Function Demonstration: One-Button Direct

Connection, Seamless Two-Way Communication

1️⃣ Two-Way Calling System

The Acewo one-button hands-free intercom supports

true two-way communication:

Extension units can call the main unit with one button

The main unit can call a specified extension unit in return

Clear and stable call process, no howling, no delay

Whether it's the person requesting help or the duty center,

a call connection can be quickly established.

2️⃣ Diverse Intelligent Call Answering Methods

To adapt to different usage scenarios, the system 

supports multiple call answering methods:

Touchscreen digital input call (main unit)

Physical button answering (long press 

"1" to connect)

Automatic extension answering function

Avoids communication interruption due to

operational errors in emergencies

Truly achieves: No learning cost required in 

emergencies.

3️⃣ Emergency Guidance and Precise Location

After the call ends, the system will automatically 

play a voice prompt:

"Please wait patiently for rescue personnel to arrive."

Simultaneously, the system supports precise location

of the call source through the device number, allowing

the command center to confirm the location of the 

request for help immediately, buying valuable time 

for subsequent rescue.

IV. Standard Operating Procedure: Simple and Intuitive,

Zero-Learning User Experience

The Acewo one-click hands-free intercom's operating

procedure is extremely simple:

Enter the target extension number on the main unit

touchscreen

Click confirm to initiate the call

After establishing the call, full-duplex hands-free 

communication is achieved

The system automatically records call information for 

easy later retrieval and management

No complicated training required; anyone can quickly

get started.

V. Application Scenarios: Born for "Critical Moments"

The Acewo one-button hands-free intercom system is 

widely applicable to:

Tunnels/Underground Passages

Unmanned Parking Lots

Industrial Parks/Factory Areas

Emergency Points in Schools/Hospitals

Public Safety Locations such as Scenic Spots and Ports