Flexibility and independence for your video conferences.
Secure video conferencing for those who want to remain digitally confident.
OpenTalk Screen - Konferenz beitreten

Stronger together

Our partners are as convinced of open source and digital sovereignty as we are. - Let us tackle your wishes together.

Find experienced partners at eye level near you

For the distribution and support of OpenTalk, we also rely on cooperation with competent partners, so that our customers can always find an experienced contact person in their vicinity.

Are you looking for a specialist to help you roll out a digitally superior video conferencing solution? Or an IT service provider who will work with you to install OpenTalk as an on-premise solution? Or would you simply like to obtain OpenTalk directly from the cloud?

Then our partners will be happy to help you.

Distribution partner

Logo Fuago

FUAGO is a distributor for open source solutions, such as Open-Xchange and OpenTalk, and has many years of experience in the IT and hosting sector. Within the framework of the partnership with OpenTalk, FUAGO takes over both the onboarding and the technical and sales support of resellers. As an agile company, FUAGO maintains close contact with customers and partners.

comnet Logo

comNET is an IT system house with over 30 years of experience. As a specialist for IP communication and convergent network solutions, comNET guarantees qualified work in the LAN, wireless, WAN, voice & video over IP & security sector with complex requirements.


Logo Systemschmiede

Systemschmiede is a reseller for open source solutions, such as OpenTalk and Open-Xchange products. The company was founded in 2006 by Sascha Zucca and Thomas Teves. After starting as a local service provider and system integrator, they soon expanded to the hosting and SaaS sector. Whenever possible, they implement their projects with open source software from the beginning.

Logo IKU Systems

As a company for open source solutions, IKU Systems & Services offers OpenTalk among others. IKU is a competent consulting and service partner for economic, future-oriented and secure IT operations. Its services cover the entire IT value chain.

Jambo GmbH

jambo GmbH is an IT service provider with innovative and secure solutions for educational institutions and companies. The service provider's focus is on user-friendly systems with minimal administrative effort. The comprehensive and data protection-compliant product portfolio can be individually and flexibly adapted to the needs of customers.

Technology partner


ownCloud, an open-source content collaboration platform, enables secure and effortless storage, sharing and editing of files. As part of our partnership, we are integrating ownCloud into OpenTalk. This ensures secure storage of future conference recordings, minutes, and whiteboards directly in ownCloud.

mgm Logo

mgm technology partners is an international software company that relies on its own low-code platform A12 and model-based software engineering for the development of enterprise business applications. The aim of our co-operation is to integrate OpenTalk into the A12 platform to create a comprehensive and easy-to-use video conferencing solution for the public sector.


innovaphone AG is a leading European provider of work and communication solutions and, with innovaphone myApps, offers a platform that can customize all areas of a modern workplace based on app technology.

In addition to classic communication and UC elements, the portfolio includes various "productivity apps" and offers seamless integration of partner apps via the innovaphone App Store.

You want to become a partner?

Feel free to contact us and learn more about possible sales and technology partnerships.

Interesting facts on technology and operation

Open APIs

OpenTalk comes with open and well-documented APIs. Clearly specified interfaces enable seamless integration into existing platforms and products. All access to features is subject to strict authentication and authorization.

REST-based APIs are available for provisioning of users and rooms, configuration, metrics, and reporting.

This enables a rich set of use cases beyond pure video conferencing and makes OpenTalk a versatile video communication solution for third-party applications.


OpenTalk utilizes modern container technology. Each conference will be launched within a container. For small-scale installations, that's usually "localhost", or alternatively, a Kubernetes cluster for anything bigger. OpenTalk takes care of the provisioning, operation and shutdown of each conference container.

Containerization ensures vertical & horizontal scaling as wells as clear data separation between conferences and participants. OpenTalk allows hassle-free operation, good management of CPUs and other resources, and avoids the "10K" scale-out issues that other solutions may suffer from. A conference container runs largely independently, which is great for administrators, as configuration changes and even system updates can be performed at all times without causing disruption.

Corporate Branding

From your own logo to the adaptation of CI colours to a completely customisable white-label product: appearance, behaviour and functions can be defined system-wide, client-by-client or individually per conference. Just as you need it.

Our roadmap: For conferences, background images in the corporate design (CD) of a company can be made available on the server side and, if necessary, even enforced on the company's participants. This ensures the right external image for the customer.

Provisioning & Billing

OpenTalk is made for providers. Clear interfaces allow for clean integration, straightforward management of permissions, and flexible configuration options per customer or conference. This includes flexible billing options like basic, premium and enterprise packages as well as reporting.

Extensive metrics that can be read out enable precise recording of the scope of use and operating costs, very flexible configuration options of OpenTalk support the operation of the most diverse low-cost models and tariff groups with individually packaged functional scope.


Using well-defined interfaces and APIs, all kinds of qualitative and quantitative metrics can be retrieved from the OpenTalk platform for monitoring and performance analytics. 

OpenTalk allows you to stay on top of all mission-critical indicators: Server health, available resources and consumption by container, participant numbers per conference, number of connections, reconnects, other events, usage time, and many more.

Good reporting and meaningful statistics show the current status and predicts future situations, so that impending bottlenecks can be identified at an early stage and available resources allocated accordingly.

System architecture

OpenTalk is based on an architecture that has been developed from scratch and that reflects the current state of the art in security, authentication, encryption, scalability and flexibility.

A central "controller" supervises the logon and authentication of all users and confirms their authorization to access sessions. After the initial authentication has been successful, another authorization check is performed on the basis of an OpenID Connect token, for each access: Whether it is retrieving video streams from an ongoing conference or transmitting required control information, chat messages, voting participation or using any other feature within the scope of participation. Nothing takes place without token-based authorization.

Only after logging in will the client connection be internally forwarded to the specific video bridge from which the respective conference content is accessible. The bridge will only ever receive authorized RTC connections, which ensures that only trustworthy and authorized audio/video data are being disseminated. The internal systems can thus be protected and hardened against unauthorized access and denial-of-service attacks by way of a multi-level system ("onion skins").

Control commands, such as microphone on/off and camera on/off, are first authorized by the user client and sent to the controller, which then forwards them to the responsible video bridge with the help of a so-called message broker. The message broker has been designed for high-performance scaling and can also simultaneously process the message volumes that occur in those conferences that have a very high number of participants.

For each new conference, a separate video bridge instance is started in a container, which processes all security-sensitive data locally within the container. This protects against unauthorized access from other installations/conferences and, by dismantling the conference container upon termination, also ensures that all data stored at runtime is securely and reliably deleted at the end of the conference.

in terms of streaming quality, modern standards and license-free open source video codecs such as VP8, VP9 or AV1 are efficient when it comes to data consumption and facilitate a good, low-latency conference experience, even with limited or fluctuating available network bandwidths. The connection quality is continuously monitored and the connection parameters are dynamically adjusted to the available bandwidth.

The frontend or user interface of OpenTalk is based on React, an efficient JavaScript library that works with hierarchical components. To guard against cross-site scripting (XSS) attacks, React automatically masks all HTML data entered by users. The Redux library ensures that runtime data is only stored locally unless needed by other users, allowing for a data-efficient operation.