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Electronic Telephone Book

KatharSys® ETB is your networkable CTI tool for handling the high demands placed on your telephone exchange.


Use direct dial to connect internal, external and private callers via the V.24 or TAPI interface. Search for contacts on the basis of 14 freely combinable criteria and import or export call contacts via a user interface that is easy to operate and compatible for blind-person workplaces.

Check our Brochures or simply get in touch with us for more information. We would be happy to answer any questions you might have and explain the performance properties of KatharSys® ETB.