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We are looking forward to hearing from you:
Office Vienna
Hebbelplatz 5,
1100 Vienna, Austria
Office Innsbruck
Olympiastraße 17 / 1. Stock
6020 Innsbruck, Austria
Office Graz
St. Peter Gürtel 8, Top 2
8042 Graz, Austria
Office Obertshausen
Friedensstraße 20,
63179 Obertshausen, Germany


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Our Services

digital BSS for short „time-to-market“ cycles
>10 Mio. Customer Record sets
100 % web-based Shop, Customer SelfCare and App
several 100 Mio. Workflows


We are looking forward to your message!

The Challenge

congstar is a wholly-owned subsidiary of T-Mobile and one of the leading “no-thrills” telecommunication companies in Germany. Thanks to the rapid increase in customers, only two years after its establishment efforts had to be channelled into creating a more efficient solution. In early 2009 the decision was made to introduce aax2 to handle prepaid, postpaid and DSL product business.

The Solution

There are currently more than 11 million congstar SIM cards on the market, and more than 7 million customer records in the system. More than 160 – often complex – workflows have been implemented and more than 50 external systems rolled out. The great versatility of aax2 enables congstar to offer very short time-to-market cycles with high scalability and low costs.

Solutions provided by
“…we offer our customers exactly those mobile phone and DSL products that best suit their personal lifestyle.“


Numerous companies from a wide range of industries have placed their trust in our expertise for years. And that's not only because of the quality and flexibility of aax2. It's also because we treat our clients like partners.

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