Providing the real magic of connectivity: Simplicity, efficiency, high quality and more

For two decades, we have been your secure global gateway. We make it easy for you and your customers to connect to the world and to Deutsche Telekom’s high-performance network. At the same time, you gain access to the Group’s hundreds of millions of customers. ICSS – agile at scale.

We bridge people and technology for best user experience

With future-proof technologies, innovative solutions, smart processes and the passion of our people, we drive your business forward and help you gain customer satisfaction and loyalty. Our ICSS Customer Survey, for example, revealed a positive 4/5 ranking. Let us turn your vision into a reality, that goes beyond connectivity!

Join our customers and rely on our deep wholesale and retail understanding

Serving the needs of the Deutsche Telekom Group and its international affiliates, as well as 900 customers worldwide, we build on a deep understanding of wholesale and retail markets. Our offering covers IP-based solutions, next-generation platforms, voice communication and mobility, content delivery, and Ethernet-focused VPN services.

With an extended security portfolio, we safeguard your revenue and reputation

The ability of hackers to launch massive, crippling attacks is on the upswing. ICSS actively fights against these threats with dedicated teams, advanced technologies and a continually expanding security portfolio. This spans from detecting and stopping fraudulent voice or SMS traffic to protecting your websites from downtime due to DDoS attacks or DNS problems.


September 25 - 28, 2017, Marrakesh, Morocco

WAS (Wholesale Agreements & Solutions Group) is a working group within the GSMA. It develops roaming and interconnect agreement templates and wholesale charging principles. Join us for individual discussions in Marrakesh! Our mobile solutions cover a variety of needs from interoperability and QoS to real-time transport and delivery of LTE.

Read more

Carriers World 2017

September 26 - 27, 2017, in London, UK

Carriers World 2017 continues to provide the meeting place for buyers, sellers and their partners to do the deals that drive Europe’s wholesale sector. Hear from ICSS’s Christian Wollner who will share his view on "Capitalizing on the IPX-IoT opportunity”. Don't miss to talk to ICSS’s Max Roettgermann about ICSS’s 360° security solutions that help stem the rising flow of DDoS attacks.

Read more

Capacity Europe 2017

October 24 - 26, 2017, in London, UK

Meet us at Europe’s largest annual meeting for the global carrier community: an excellent place to create and enhance your business network. Hear from ICSS's Mardia van der Walt who will share insights on ADVANCING WOMEN IN TELCO and  don't miss to join ICSS's expert Max Roettgermann in a panel discussion at the Network Security Summit on October 26

Read more

Sorry, your browser is not up to date

To enjoy ICSS you will need to install a modern browser.
We recommend to update your browser and to install the latest version.

iOS users, please make sure you're running at least iOS 9.

Mozilla Firefox Google Chrome Internet Explorer