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  At a Glance  


Cologne Chip develops and manufactures ISDN controller ICs for Basic Rate and Primary Rate Access. Board with HFC-S mini

The company offers highly integrated HDLC controller and ISDN transceiver chips for a broad variety of ISDN applications, such as PABX, digital phones, VoIP gateways, Integrated Access Devices (IAD) and POS terminals. For PC add-on cards there are single-chip solutions available.

All chips are built in pure digital CMOS architecture which leads to utmost stable quality and makes high functional integration possible – at excellent prices. By patented technology, the line interfaces for ISDN S/T or E1 are part of the chips, too.

The chips, marked with famous Cologne Cathedral, are sold in millions of pieces and can be found in a broad range of ISDN products all around the globe. Since more than a decade the company has a leading position among the semiconductor manufacturers in the ISDN field.

Being a company of innovation ever since, Cologne Chip holds a significant number of patents and registered intellectual properties – besides ISDN also in CODEC technology (ADC/DAC) and other fields. As a consequence the company does not only supply its standard products, but increasingly supports customer ASIC projects by granting licenses of intellectual properties (IP blocks).

Nowadays, the ISDN transceivers of Cologne Chip are demanded in growing quantities for Residential Gateways for broadband access via xDSL, cable, 4G or fiber: So the company contributes to the migration from traditional PSTN to IP-based Next Generation Networks, underlining its technological leadership in the ISDN market:

Cologne Chip – The ISDN Chip Company!



Please read on about Company History, Our Mission and the Management.




Copyright © 2011 Cologne Chip
The ISDN Chip Company!
Last Modified: 20/05/2011