Data Networks
under scrutiny

Data network

Whether it's about data networks, landlines, ISDN or All-IP - we can take a close look at your contracts and agreements

Planning, designing and reducing the cost of a functioning network requires expertise ranging from LAN, WAN and WI-FI to new, challenging technologies such as cloud applications, software-defined WANs or the conversion of ISDN on All-IP.

Improving prices and services

Deep technology is one thing but just as important is sufficient knowledge of the provider market and the terms currently on offer. Conducting a professional bidder survey, for example by means of a tender, is the option of choice when facing the complex requirements of companies of a certain size. This approach never fails to pay off for the tendering party since it allows a transparent comparison of engineering requirement criteria and commercial parameters. Furthermore, such a tendering process will ensure the essential element of competition that will ultimately produce an optimum final outcome.

heitzig makes the opportunities and risks associated with various suitable solution approaches transparent. Together with your project team, we develop a tailor-made solution and put it out to tender.

However, it's not always necessary to implement comprehensive calls for tenders in order to ultimately reach a specific goal. There is also the lean option of achieving the desired benefit without going through an elaborate tendering process! This approach is recommended when certain other factors come into play which should be agreed on between heitzig and its client in advance.

During its long years of project experience, heitzig has developed a highly successful survey model combined with a strategic approach we use to complete optimization projects through know-how and outstanding market expertise.

heitzig can improve the price and the performance of your networks!

The typical heitzig approach:



When it comes to achieving an optimum cost-/benefit ratio, we will be happy to advise and assist your company in any way we can.

+43 5757 6010


Benefits of Software-Defined WAN

Although each SD-WAN project basically involves similar structures and processes, company-specific details and requirements are completely unique and new challenges with each roll out.

In the age of cloudification, SD-WANs promise to combine the cost benefits of an Internet connection with the service levels of an MPLS network. An SD-WAN not only simplifies the configuration and management of the WAN, but can also reduce costs by outsourcing bandwidth-intensive and less critical applications and data to the cheaper public Internet (Traffic Offloading).

If necessary, bandwidth requirements can be increased at short notice and then reduced again. This means that the higher costs for more bandwidth are only incurred in the actual time period.

SD-WAN may be of interest to the following target groups:

  • Companies with larger international networks
  • Companies that already use VPN alongside MPLS
  • Customers who want to move applications to the cloud or get more and more applications from the cloud

We are happy to help you to explore your specific requirements!


From ISDN to All-IP

The technology of the future for fixed-line telephony is called All-IP, is actually a marketing term and means the changeover from the classic ISDN to IP. By the end of 2019, large telecommunications companies (e.g. Telekom Germany or Swisscom) have switched their customers' connections from ISDN to IP telephony. By 2022 at the latest, there will be no more ISDN connections. In Austria, no new orders for ISDN will be officially possible until 2023, but the All-IP forced migration is already taking place in Austria.

However, it's mostly the telecommunications companies themselves that will profit from this All-IP changeover. While it will reduce their maintenance and personnel costs, it may also produce many benefits for customers and make external communication processes significantly more efficient.

The network capable of accommodating all these services is called Next Generation Network (NGN). It means that in the future, customers will only have single All-IP connection which they can use to surf the internet, make phone calls, send faxes or watch TV. An ISDN connection that is separate from an internet connection will no longer be required.

Some potential issues, however, still need to be considered - some ISDN-based peripheral devices and accessories, for example, may cease to work in All-IP systems.

Migrations often fail due to a lack of internal resources. Simply leave the entire handling of the changeover process to heitzig. All of our services include an optimization estimate for your landline agreements.

We would be happy to help you explore your own specific requirements!

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