…and a new year starts

teldat logoA year that has a very special meaning for Teldat, because during 2015 we will celebrate the thirtieth anniversary of our company’s establishment.

Thirty years in which we have been participants in the amazing technological evolution of communications, from the first modems to the latest 4G products. Thirty years that have led us from our very first small office (similar to some famous garage start-ups) to four continents, competing with global leaders. Thirty years that we have shared with our team, suppliers and customers, with whom we also hope to share the celebration of such a special birthday.

It will also be an important year because it’s the year in which we will see the successful accomplishment of many projects, investments and initiatives, which we have been working on during these last few years, and especially in 2014. Moreover, also because if the forecasts are reached, this year should be better than previous years. Not only for us, but for everyone and this will be very good news.

That’s why we commence 2015 with strength, enthusiasm and ambitiousness. In fact nothing very different from what we have always done at the beginning of each year, during the last thirty…


A Year ending…

Anna Maria Schmitz - Navidad 2014…which for Teldat has been an important and significant year, successful and with many new projects. A year of integration and growth.

This year 2014 that will finish shortly, has meant among other things, a change in the way Teldat has interacted with our customers, suppliers and all those interested in our technology and what we do.

Since June, when we launched this blog and our Twitter and LinkedIn accounts, we have shared many things with our readers: activities, knowledge, opinions, projects, case studies. Everything that we considered relevant to show what makes and what is a small Spanish multinational company which is able to compete with the largest companies within its market sector.

To end this year, we want to thank all our readers for their loyalty and interest as well as welcoming more than 1.000 new followers who have joined our communication channels.

Moreover, we especially want to wish all of them, to all who read us occasionally and all our customers and friends, to have a very merry Christmas and may 2015 be as fruitful for them as this 2014 has been for us.

Teldat Group

Photo: Anna Maria : Teldat´s annual drawing competition. Congratulations!


What is a wireless LAN controller and who has taken it to the cloud?

colibri serviceThe main function of a traditional wireless LAN controller (WLC ) is to configure wireless access points (AP) that connect to it locally.

However, due to the technological characteristics of a wireless area network (or Wi-Fi as it is commonly known), the traditionally used Wi-Fi network architecture and the manufacturers’ commercial strategies, a WLC carries out or can carry out many other functions, which can be grouped into the following categories:


Eduardo Tejedor: Telecommunications Engineer, Teldat V.P. Strategic Marketing

Final step of convergence: ALL IP

voip solutions The increasing convergence of voice and data has been going on for many years. The shift towards Voice over IP (VoIP) has already started!

In some countries such as Germany, there has been going on a discussion about when to decommission the public ISDN networks. The end of ISDN and analog telephone connections is approaching. In Germany all current landline connections will be shifted to IP based connections by the end of 2018. All data, whether voice, email or video, will be exclusively transmitted by the Internet Protocol IP.


Having only one technology for all telecommunication networks requires some essential changes. Network providers take advantage from the benefit of a simpler and more cost-effective network structure. Numerous companies have enjoyed (and still do) the advantages of ISDN services, such as X.25, FTAM, CAPI or OFT. Nevertheless, let’s do not forget the most basical part of telephony which is without any doubt the voice quality. ISDN offers an excellent voice quality and of course no one who has already enjoyed a very high quality wants to move a step back. As a consequence the voice quality of VoIP has to be the same as of ISDN (at lease more or less) and a solution has to be found in order to ensure the quality.

Voice Quality – Quality of Service (QoS)

Quality of Service is the magic word and guarantees exceptional voice quality when you use Voice over IP technology. Professional routing solutions always provide QoS functionalities which give, for instance, voice traffic a higher priority for making sure that there is always sufficient bandwidth for voice applications. It classifies the streams of data and a sophisticated traffic management gives preference to voice data over e-mail data within a VPN tunnel. This results in exceptional voice quality even when bandwidth usage is at its highest. In order to provide maximum security, a professional integrated IPSec implementation uses preshared keys as well as certificates.


Voice quality is only one challenge to cope with when the final shift to ALL IP will happen but it is certainly one of the most fundamental requirements for anybody picking up the phone. The strict separation between the competence areas data and voice is history and ALL-IP will be no longer a vision of the future. In this current transition phase, it is absolutely necessary to have a strong partner with multidimensional know-how because ALL IP not only brings two worlds together but merges them. Teldat is in an excellent position because two of the manufacturer’s core competences are data and voice. Therefore Teldat is a strong partner to have when entering the new world of ALL IP.

Heidi Eggerstedt: Heidi Eggerstedt is part of the bintec-elmeg's Marketing Department. Within this department she is responsible for Marketing Documentation and Translations

Wireless LAN – correctly installed in companies

wireless lan controllerBy now wireless LAN is not just a “nice to have“ gimmick anymore but an essential part of IT in companies. Depending on the industry or sector, the availability of a wireless LAN network is now often integrated as part of the workflows, besides the usual office applications. Availability and security of the wireless LAN for these applications rank among business-critical parts of the infrastructure.

Faulty installations or unprofessional solutions can risk security in companies or interrupt accustomed workflows.

What makes the difference in detail?

The network should be constantly monitored by a wireless LAN controller. A wireless LAN controller alerts each failure of an access point. By means of a wireless LAN controller the administrator can document performance and availability of the network at any time and also indentify problems on time.

Professional access points constantly scan their environment and therefore detect threats or attacks. The scanning process of the environment is automatically carried out in the background without any interruption of data transmission. Some highly advanced solutions don’t even need an external, separate access point for monitoring.

A WIDS (Wireless Intrusion Detection System) detects any threat at an early stage and informs the network administrator via email alerts or reports via a SNMP trap to a network management system. If a so-called rogue access point is detected, the approximate location of the attack will be determined which facilitates removing the rogue access point. The integrated WIPS (Wireless Intrusion Protection System) detects password cracking attacks of clients or sending of inadmissible frames which would reduce the performance of the wireless LAN. Such attacks will be fended off and ignored, suspicious clients will be quarantined.

Professional load balancing: Wireless LAN client

Professional load balancing includes several technical processes which all together make sure that each wireless LAN client is always connected to the optimal access point and therefore can work optimally. This kind of load balancing ensures for example that a wireless LAN client trying to connect to an access point which serves already many clients will be rejected and will be connected to an access point with less data load. If an access point provides two radio modules and sends data in 2.4 and 5 GHz frequency, band steering makes sure that the wireless LAN client preferably uses the more powerful 5 GHz frequency. Further protocols such as airtime fairness and the integrated bandwidth limitation enable the optimized usage of the medium air. All together these technical measures ensure in big installations that a vast number of clients can be provided with wireless LAN.

Teldat’s wireless LAN concept has been proven to be the perfect solution for congresses and major events, as well as other scenarios. Our Wireless LAN hardward and software covers all the essential issues, mentioned above.

Hans-Dieter Wahl: WLAN Business Line Manager
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