Our Services

ICT (Information and Communication Technology) Consulting

We support our clients in analyzing their current ICT situation, and provide them with our expertise in technology, telecommunications and services - competent and practice-tested!

Software Development

We develop projects for our clients, make improvements for existing projects, on various systems and platforms, as well as in various programming languages, according to their individual needs. Our software development activity covers various areas such as telecommunications, web solutions, business systems, mobile and embedded systems.

Project Management

Our project management serves as an interface between the user, the development and the implementation team. Client expectations are met with our project management and the realization team, respecting the critical elements such as requirements, resources, schedules, planning and risks.

Support & System Administration

We provide Support & System Administration of the ICT Systems, Servers and Software regardless of whether the systems or solutions come from us or not. We help our clients to keep their systems working and up to date, according to the current security requirements. This ensures the achievement of optimal performance with their technology systems.

Our Projects


Network - Server - Security - Backup
Open Source - High Availability
Virtualization - Docker

Hosted PBX - VoIP - IVR
Asterisk - FreeSWITCH - Kamailio

IoT - Industry 4.0
Embedded Systems

About Us

The company MultiLine ZM e.U. was founded from the telecommunications department of Multi-Line Handels-GmbH, founded in 1990, and was splintered to several parts in the year 1996. We are the "front-end" of an international team of experts to solve your ICT (Information & Communication Technology) concerns in various fields.

We offer requirements analysis, consulting, project management, software & hardware development, equipment purchase, deployment, maintenance and support. Our activities cover telecommunications, web solutions, business systems, mobile solutions, embedded systems, Industry 4.0 and Internet of Things (IoT).

Get in Touch


MultiLine ZM e.U.
Flachgasse 11/53
A - 1150 Wien (Vienna)
Phone: +43-1-7893232-0
Mobile: +43-650-9873232
email: office@multiline.at

Company registration no: FN 372889t
Commercial court: Handelsgericht Wien

VAT-Nr: ATU39918808

Bank: Bank Austria AG
IBAN: AT981200050191669000

Contact Info

MultiLine ZM e.U.
Flachgasse 11/53
A - 1150 Wien (Vienna)
Phone: +43-1-7893232-0
Mobile: +43-650-9873232
email: office@multiline.at

Copyright: MultiLine is registered trade mark of the MultiLine ZM e.U. (www.multiline.at)