Warning for users of DECT-type cordless phones - UKE

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Warning for users of DECT-type cordless phones

The President of the Office of Electronic Communications informs users of the Digital Enhanced Cordless Telecommunications (DECT) type phones, which most often originate in Latin America or North America, that they cause radio interference in UMTS system mobile networks (a base plugged into the telephone socket via a cable with a portable receiver or several receivers). Those types of phones should not be used. They also cannot be transferred or sold.


“DECT” type phones used in Poland should have a characteristic “CE” marking.  Lack of the “CE” symbol indicates that the product is not in conformity with the essential requirements and cannot be marketed and used. Devices imported from outside the European Union which do not have this marking have a negative effect on the quality of services provided by telecommunications operators. In extreme cases they make it impossible to get through to emergency numbers, including 112, emergency services, fire services and police.


Correct marking of products admitted for trading and use in the European Union

Telephones sets most often originating in the United States or Canada, as well as in Latin American countries, are not admitted to operation in Poland and other European Union countries due to the different operation frequency range. According to ITU guidelines devices from those countries use the frequency range of 1920-1930 MHz, whereas according to frequency reservations and radio licenses in Poland the band is dedicated to the telecommunications operator Orange Polska S.A. On the European continent ITU has assigned the frequency range of 1880-1900 MHz to this technology.

The most common brands of phones imported from the USA and Canada include: PANASONIC, VTECH, UNIDEN and AT&T. Very often they are described as “DECT 6.0”, which is the American equivalent of the European “DECT” standard. This standard is also used by other devices with voice transmission over short distances, e.g. computer peripheral devices used to talk via instant messengers. The use of DECT type cordless phones imported from the above-mentioned regions is forbidden in Poland, due to harmful interference they cause to other devices, which fulfil the essential requirements within the meaning of the Act of 13 April 2007 on electromagnetic compatibility (Journal of Laws 2007, No. 82 item 556).

Urządzenia zakłócające typu DECT
Photographs show devices causing interference identified by UKE workers in the course of duties. There is no “CE” marking on the rating plate. „DECT 6.0” inscription is visible on the device base.

According to Article 208 of the Act of 16 July 2004 on Telecommunications Law (consolidated text, Journal of Laws of 2014, item 243, as amended): “Whoever uses a radio transmitting or a transceiver without a required licence, shall be liable to a financial penalty in the amount up to PLN 1000. If the author of the deed acts in a persistent manner, he/she shall be liable to a financial penalty, restriction of personal liberty or deprivation of liberty up to 2 years.” Also a telecommunications undertaking using frequency without a license to do so or in violation of this license is subject to a penalty of up to 3% of its revenue generated in the previous calendar year (Article 209, paragraph 1, point 9 of the Telecommunications Act).


Fragment of electromagnetic spectrum of UMTS2100 Uplink with a visible parasitic signal from
a cordless phone “DECT 6.0” registered by a spectrum analyzer

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    The President of the Office of Electronic Communications (President of UKE) is the national regulatory authority for the market of telecommunications and postal services. The President of UKE is also the specialised authority in the area of equipment conformity assessment, including telecommunications terminal equipment and radio equipment.

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