TrueConf Server – Business-Grade Offline Messaging

Empower your team with reliable internal chat and collaboration tools that work without internet access. Fully self-hosted, scalable, and secure.

office chat messenger

Team Messaging Without Limits

Group and personal chats

Managing chat moderators and transferring owner rights

Edit, reply & forward messages

Text formatting: bold, underline, strikethrough, and italics

Participants mentions

Customization of pop-up notifications

«Typing» status

Information about reading the message

Secure Communications

Working in the Company's Contour

Offline operation within a closed network without an Internet connection.

Safe Data Transfer

Strong encryption of all corporate communications.

Corporate Messenger

Group and Personal Chats

Exchange messages during conferences and beyond! Respond to colleagues' requests in personal and group chats, swiftly transitioning discussions into online meetings.

Group and Personal Chats

Unlimited Notifications

Receive push notifications when new messages appear in personal and group chats.

Unlimited Notifications

Fast File Sharing

Share and quickly view files directly in TrueConf client applications.

Fast File Sharing

Documents and Media Files View

View the resulting images and video files, as well as PDF documents, in TrueConf desktop client applications.

Documents and Media Files View

Organization of the Address Book

With the help of a convenient address book and department navigation, you can contact any employee of the company and see which colleagues are available for communication.

Organization of the Address Book

Presence Statuses

OnlineBusyConference ownerOfflineDo not disturbAwayOn the phoneOn the terminalаRecently active

Integration with Active Directory

Enhance the capabilities of the address book by integrating Active Directory or any LDAP directory with TrueConf Server.

Integration with Active Directory

Seamless Authorization

Single Sign-On (SSO) technology, along with support for NTLM and Kerberos protocols, allows users of TrueConf Server client applications to securely log in without entering a username and password.

Seamless Authorization
Syncing on all Devices

Syncing on all Devices

Access your TrueConf Server account on multiple devices simultaneously while synchronizing your correspondence and message drafts.

Desktop Applications

The corporate messenger for video conferencing and secure communication, running on popular operating systems and browsers.

Mobile Devices

Organize video conferences and discuss tasks in chats wherever you are — all corporate communications in one mobile application!

Communicate without borders with TrueConf Server!

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Our Project

Department of Justice and Home Affairs

Department of Justice and Home Affairs

With limited resources and judges short on time, Zurich legal professionals and court officials are embracing video conferencing for all stages of the legal process. With TrueConf Server, officers are spending less time on inmate security and transport to focus more on their primary job functions, while multiple inmates from multiple locations can be connected without the need for extra holding cells in the courtrooms.

Hindustan Aeronautics Limited

Hindustan Aeronautics Limited

TrueConf Enterprise has powered Hindustan Aeronautics Limited to create a private collaboration cloud that enables more than 30,000 employees to communicate seamlessly from any convenient device. After moving their meeting activities online, HAL managed not only to save time and money on transportation costs but also reduce the risk of delays and cancellations due to travel disruptions.

European Patent and Trademark Attorneys

European Patent and Trademark Attorneys

TrueConf helped Isarpatent to connect multiple company offices and provide online patent consultations with their clients and partners. All communications between patent advisors and clients are encrypted and safely stored on the company’s premises.

Istanbul Airport

Istanbul Airport

The visitors of Istanbul Airport can experience a new level of real-time customer service and get immediate help in a matter of seconds thanks to information video kiosk system powered by TrueConf SDK.

ZTM Bad Kissingen

ZTM Bad Kissingen

The TeleView for Refugees project based on TrueConf video conferencing systems was quickly deployed and did not require large financial contributions or legacy video conferencing endpoint installments. The solution meets the requirements for sensitive medical data processing, storage and transmission.

Koluman Holding

Koluman Holding

Koluman Holding, one of the leading manufacturers in Turkey’s automotive industry, has replaced hardware MCU with TrueConf Server, a software video conferencing system. The solution integrates smoothly with existing SIP/H.323 infrastructure, delivering high quality video collaboration across five branches.

News

TrueConf Server 5.4.5: updates and improvements

TrueConf Server 5.4.5: updates and improvements

TrueConf Server 5.4.4: updates and improvements

TrueConf Server 5.4.4: updates and improvements

TrueConf Server 5.4.3: updates and improvements

TrueConf Server 5.4.3: updates and improvements

FAQ

What is Offline Messaging?

Offline messaging enables the exchange of messages without an active internet connection by utilizing alternative communication methods such as Bluetooth, Wi-Fi Direct, or mesh networks. This technology allows devices to communicate directly, making it essential in environments where internet access is unreliable or unavailable.

Here’s how these technologies function:

Bluetooth: Connects devices within a short range (up to 330 feet) for direct messaging, ideal for small groups nearby.

• Wi-Fi Direct: Allows devices to connect via Wi-Fi signals without needing a traditional network, offering a longer range and faster data transfer compared to Bluetooth. This makes it suitable for environments where devices are spread out but still within a considerable distance from each other.

• P2P Messaging: Sends messages directly between devices without a central server, often using Bluetooth or Wi-Fi Direct. This decentralized approach, known as p2p messaging, ensures that communication can continue even if one or more nodes in the network go offline, enhancing reliability and security

• Local Area Network (LAN): Connects devices within the same local network, such as in a home or office, allowing message exchange without requiring an external internet connection. This method leverages existing infrastructure to facilitate seamless communication.

Benefits of Offline Messaging

Reliable Communication: Ensures messages are delivered even in areas with poor or no internet connectivity, maintaining constant contact. Plus, if you use offline messaging app via text message API or software, the recipients don’t even need to download any app.

Emergency Use: Vital for communication during natural disasters or emergencies when traditional networks may be down, facilitating rescue and coordination efforts.

Security: Provides secure communication through direct device-to-device connections, reducing the risk of data breaches and ensuring privacy.

Offline Messaging Use Cases

Natural Disasters: Ensures communication during hurricanes, earthquakes, or floods when internet and cellular networks are down, aiding in emergency responses.

Large Events: Facilitates messaging at concerts, festivals, or sports events where network congestion is common, ensuring attendees stay connected.

Corporate Segment: Enables internal communication in offices or corporate environments without relying on external internet, enhancing data security and operational continuity.

Government and Army: Provides secure and reliable communication for government agencies and military operations, where confidentiality and independence from public networks are crucial. This ensures sensitive information remains protected, and operational efficiency is maintained.

Top Offline Messaging Solutions

TrueConf

TrueConf is an on-premises corporate messenger within a local area network that provides comprehensive communication solutions. Deployed on company hardware, it guarantees data security and prevents third party access to information. The server operates autonomously, ensuring constant control and management, with detailed installation and configuration guides for both Windows and Linux operating systems.

TrueConf supports high-quality 4K video communication and screen sharing for enhanced collaboration. Personal and group chats enable efficient team communication, while robust privacy protection ensures secure interactions. In addition, the platform supports large conferences with up to 1500 users and 49 speaking participants, making it scalable for extensive enterprise use.


Briar

Briar operates with Bluetooth and Wi-Fi Direct as a system of meshes; thus, it can be used in places where one cannot access the internet or when it is unreliable. Briar also uses strong encryption to ensure that all the conversations remain secret and safe for users who are worried about their data privacy.

Moreover, the application is open-source hence making its security protocols verifiable by other independent parties hence increasing trust. Furthermore, group chats and forums are just two of its many features which make it a versatile tool for communication purposes for different types of people using different forms of communication. By and large, Briar is a very strong offline messaging app that would be perfect for keeping communications secure even under difficult situations.


Bridgefy

Bridgefy is one of the most remarkable offline messengers that excels in providing a medium for communication without necessarily using the Internet through Bluetooth. It is particularly essential during huge events, natural calamities or remote areas having inadequate or no normal network coverage. Messages can be sent to distances of up to 330 feet, and messages transmit from one user to another in order to expand the communication range by creating a mesh network. Additionally, integrating Network Monitoring Software can enhance connectivity efficiency by analyzing device performance, identifying potential disruptions, and ensuring seamless offline communication. Bridgefy’s user-friendly interface makes it simple for all people to use.

Additionally, it supports group messaging as well as individual chatting thereby being appropriate in various settings with effective communication channels. However, this means that it works best when users are in close proximity to each other since it relies on Bluetooth technology.


FireChat

FireChat is an innovative offline messaging application that facilitates communication without an Internet connection by using mesh networking technology. This technology allows messages to be sent through a network of nearby devices using Bluetooth and Wi-Fi Direct. FireChat is especially valuable in scenarios where traditional networks are unavailable, such as during natural disasters, large public gatherings, or in remote locations. The application supports both private and group messaging, making it adaptable to different communication needs. Overall, FireChat is a reliable tool for maintaining connectivity in offline situations, providing a dependable solution when Internet access is not available.


Signal Offline Messenger

With Wi-Fi Direct technology, Signal Offline Messenger is a great offline messaging app for communication without connectivity. Consequently, delivered messages are on device. This makes it suitable for regions that have poor network coverage or scenarios where internet cannot be accessed. In order to facilitate versatile conversations, the program supports both one-to-one and multiple chats among users. Due to its powerful encryption, Signal Offline Messenger has become highly recognized as one of the most secure and private messaging applications across different platforms. It is simple in look and feel and can be easily navigated; hence encouraging an uninterrupted user experience. Its online-offline duality with top-notch security features is invaluable for secure communicators. All in all, this app remains dependable when you need to stay connected offline, ensuring privacy and efficiency.