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Welcome to ZyXEL Press Room In this area you can browse the latest announcements, events and more from ZyXEL and our worldwide subsidiaries.

ZyXEL makes it simple for service providers to migrate customers from ISDN to IP connections

New Sphairon SIP Gateway makes it easy to transition customers from legacy ISDN to IP-based broadband connectivity while protecting their investment

November 15, 2013


ZyXEL Communications, one of the world’s leading specialist developers of customer-premises equipment (CPE), has unveiled the new Sphairon Gateway 400 ISDN SIP solution, which makes it simple for ISPs to migrate customers from legacy ISDN to IP-based connections.

Sphairon was acquired by ZyXEL in May 2013 and the launch underlines the developer’s continued strength under its new ownership.  ZyXEL is already established as one the leading providers of CPE equipment to the broadband industry and its acquisition of Sphairon has given the company even greater prominence in the European market. 

The Sphairon Gateway 400 is the first major new product to emerge since ZyXEL made its investment in the developer. It enables service providers to offer customers a smooth transition from ISDN to IP-only infrastructures by proving four ISDN Basic Rate Interfaces (BRIs) that can be used to connect existing ISDN PABXs to IP networks. It supports the SIPconnect 1.1 standard and advanced QoS ensures continuous bandwidth availability for high quality voice communications.

By cascading two Gateway 400 devices, up to eight BRIs (utilising 16 channels) can be provided. An integrated ADSL2+-/VDSL2-modem can be used to provide the connection to a DSL line. Alternatively, the Ethernet interface on the Sphairon Gateway 400 can be used to connect to an external modem or existing LAN.

Christian Epp, European Business Development Manager, Service Provider Solutions at ZyXEL, says: “The Gateway 400 has been developed by Sphairon R&D team to provide a smooth transition for the large number of organisations that want to move from ISDN to IP connections. It enables service providers to protect their customers’ investments in ISDN, whilst offering them a seamless migration to broadband services and all the benefits they deliver.”

As part of ZyXEL Communications, the Sphairon team of expert developers continues to work on innovative solutions specifically designed to meet the needs of European ISPs. Renowned for many years for its ability to design solutions to meet the exact need of customers, Sphairon has developed solutions for many leading service providers in Germany and internationally. Customers of the company include Deutsche Telekom, Vodafone, Telefonica O2, NetCologne and Versatel.