FTTx Solutions-Germany ISP wilhelm.tel

Fiber access

wilhelm.tel provides fiber‑to‑the‑home connectivity


Main challenge

One of wilhelm.tel’s customers, housing company SAGA Unternehmensgruppe, wanted to provide its 130,000 building tenants in Hamburg with fiber connections to enable high-bandwidth, low-latency connectivity.



Zyxel Communications provided wilhelm.tel with comprehensive end-to-end solutions, from central port to the customers and successfully helped wilhelm.tel expand its fiber infrastructure by replacing each building’s copper cables with fiber optics for true fiber-to-the-home (FTTH) connections.

Main story​

This FTTB deployment brought fiber connections to over 130,000 households and provided a major service upgrade with the speed of active ethernet for even more powerful internet.

Throughout the engagement, Zyxel has been a proactive and responsive partner. Whenever wilhelm.tel provided a feature request, Zyxel quickly fulfilled it and fully developed individual software within different project-specific requirements. Zyxel’s products fully delivered on the promise of behaving in real situations exactly as simulated in Zyxel’s laboratory.




Currently, approximately 50 percent of the 130,000 households have full fiber-to-the-home connections for maximum bandwith capabilities. The remaining 50 percent will be completed by the end of 2022. The fiber networks extend from the central office to each individual unit and room. Subscriber download speeds increased from 100Mbps to 1Gbps.



We can look back at years of successful cooperation with Zyxel, especially in the chassis product segment and in customer and technical support. Together, our companies built a solid foundation and relationship, which is why we were confident in Zyxel’s ability to upgrade and extend our fiber connections to each subscriber’s household.​

Nicolas Fahl
senior project manager for planning and system integration, wilhelm.tel.

Our customer​

Founded in 1999, wilhelm.tel is a regional telecommunications provider based in Norderstedt. As a full-service provider, it supplies large parts of northern Germany with cable TV, internet, telephony and mobile communications. With more than 90% of the market share, the German provider of fiber connections is the most dominant in the Hamburg metropolitan area.

Zyxel product solutions​

Zyxel’s IES5200 Series* of Temperature-Hardened Chassis MSAN supports access to VDSL2, GPON and fiber-based GbE services and all service slots work with any service line cards.

With the FTTH installations, the previous 100Mbps FTTB download speeds are increased to over one gigabit per second (Gbps), and the network can potentially be upgraded for speeds reaching up to 10 Gbps.

*The IES5200 Series includes IES5206 and IES5212


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