Proven investment strategy – IP telephony for large financial services provider

Digital transformation - from legacy ISDN connections to IP telephony in Europe

Time pays off not only in asset accumulation, but also in far-reaching technical changes which need careful preparation. This is all the more true in an industry that thrives on the trust of its customers. With this in mind, Colt provided forward-looking support to an internationally operating financial services provider from Germany during the transformation from ISDN to IP telephony.

Long before the switch-off of ISDN was announced by the major telecommunications companies in 2014, Colt introduced the financial services provider and long-standing customer to the then new digital IP telephony in innovation workshops. Thus, unlike many competitors, the company was prepared when the switchover finally became acute in 2018.

In the tender that was set up for this purpose, Colt convinced the customer with its global orientation and its SIP trunking solution, which covers 13 European countries. The customer was satisfied with the performance and security of the previous services. The prospect of rolling out the new technology to all European locations via a single point of contact was viewed very positively. As a result, the financial services provider decided to place its complete communications infrastructure for Europe in the hands of Colt – as the single responsible provider. It was not only the already proven quality of service that was decisive, but also Colt’s financial reliability as a service provider, which is also crucial for such key investments in business-critical infrastructure.

The roll-out took three years and went smoothly. Colt provided its own global account team with experienced staff. Local contacts, familiar with the customs in the respective countries, ensured short decision-making processes and a flawless implementation.

Brexit did not pose a challenge, as Colt has its own intercontinental connections and a separate SIP infrastructure was set up for the customer in the UK. The connection to the important financial centre of London is thus maintained.

With the installation of SIP trunking and the integration of call centres in different European countries, a total of 10,000 parallel calls are possible. This means that the financial service provider can be reached by its customers at any time and can fulfil its core service of advice without worrying about capacity bottlenecks.

Colt is also at your side as an innovation leader for the next digitalisation steps. Here, it is not the speed that is decisive, but the responsible handling of technology and sensitive data. Because as fast-moving as the financial world is: At its core, it is about providing people with a reliable point of contact for their financial transactions. Colt can provide secure, high-performance network services for this purpose.

Case Study Deutsche Bank_Image

Large, internationally operating financial services provider from Germany


Financial services and consulting


Digital transformation - from legacy ISDN connections to IP telephony in Europe


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