LAN-Based Communication System
A secure offline communication system for staff and guests, enabling calls or texts over LAN with no internet or SIM needed. Connect via app or QR code!

Client
K&A Luna, Turtle Beach Resort
Industry
Hospitality / Communication Technology
Company Size
Not Specified
Headquarters
Philippines
Project Duration
Not Specified
This project is a secure offline communication system designed for staff and guests within hotels and other establishments. It enables real-time communication through calls and text messaging over a local area network (LAN), without requiring internet access or SIM cards.
Commaster allows users to connect easily through a mobile app or QR code, providing a fast and seamless way to communicate within the facility. It is designed to replace traditional physical radio devices, offering a more modern and efficient communication solution.
The system is suitable for hotels, resorts, and similar establishments where reliable internal communication is essential for daily operations and guest services.
By operating entirely offline, Commaster ensures stable, private, and secure communication within the network environment while improving coordination between staff and guests.
Case Study
The Challenge
Hotels and resorts relied on costly physical radio devices for internal communication, which were limited in scalability, impractical for guest interaction, and unable to support modern communication needs within facilities.
Our Solution
We developed an offline LAN-based communication system that enables real-time voice calls and text messaging between staff and guests via a mobile app and QR code — with no internet or SIM card required.
The Results
Establishments replaced expensive radio hardware with a modern, scalable communication solution that improved staff-guest coordination and internal operations while reducing communication infrastructure costs.
Key Features
Reliable, offline-first communication built for hotels, resorts, and any venue where internet access is unreliable or unnecessary.
LAN-Based Messaging
Send and receive messages over a local area network with no internet connection required.
Voice Calls over LAN
Make clear voice calls between staff and guests entirely within the local network.
No Internet or SIM
Operates completely offline — no internet subscription or SIM card needed.
QR Code Connection
Guests and staff connect to the system instantly by scanning a simple QR code.
Staff-to-Guest Messaging
Staff can communicate directly with guests for service requests and announcements.
Multi-user Support
Support simultaneous connections for multiple staff members and guests at once.
Multi-room Coverage
Deploy across multiple rooms or floors within a single unified LAN system.
Secure Private Channels
Create private communication channels to keep conversations secure and organized.