Frequently solved issues

Useful information for the users of electronic communications services 

Last update: 05.04.2019

Guidelines for consumers: Special prices for the handicapped and senior citizens

Operators offer senior citizens and the handicapped special price plans. They can provide discounts of up to several hundred crowns.

The offers are availbale in different forms – for example a tariff provided exclusively to senior citizens, a discount on standard tariff, or a state contribution. CTU has prepared an overview of these special offers, together with valuable advice on how to save money.

Guidelines for consumers: “Colour” lines and emergency lines

Are you under the impression that calling numbers beginning with 8 are free of charge? And that calling a number starting with 9 is “extraordinarily expensive”? It is not always that way.

These guidelines, published by CTU, will help you find your way around “colour” lines and their tariff systems. The brochure explains the characteristics of individual numbers and the call prices you pay for them. Information about colour lines is supplemented by a description of possible use and the principle of how the Single European Emergency Number "112" works.

Press releases

• Subscribers to voice electronic communication services frequently encounter problems with incoming calls from unknown numbers, which cannot be called back, or problems with calls for marketing purposes. Due to an increase of inquires, requests and complaints, on how to defend againts such practices, the Office published a Press Release "Information on the issue of unwanted marketing, malicious, or nuisance calls in publicly available telephone network of electronic communications", on 10 January 2011, available here (only in CZ).
• In relation to introducing of new technologie, the Czech Telecommunication Office dealt with disputes over abuse of VoIP central offices. The abuse caused a considerable increase of costs on voice services for users of these technologies. The Office published a Press Release relating to this issue on 30 November 2009, "Securing of VoIP central offices and telephones", which can be found here. (only in CZ)

Problematic services and offers of electronic communication services

• Information for subscribers for calling telephone numbers beginning with a 9
• The abuse of Internet telephony (VoIP)
• Fake e-mails containing viruses

        (warning from the Computer Security Incident Response Team)

• Warning against calling esoteric programmes on TV (90X telephone numbers)

         (press release from the Council for Radio and Television Broadcasting)

Problematic radio and terminal telecommunication devices

• Information about the use of radio frequencies using BMIS devices with digital transmission

• The operation of radio-controlled toys – RC models

• The use of equipment to prevent GSM and GPS communication (interferers) in the Czech Republic

• The issue of using active indoor and outdoor aerials with broadband amplifier

• The issue of installing and operating GSM repeaters

• The restriction of frequency bands for wireless microphones

• Problems with the use of American DECT 6.0 cordless telephones
  (notice of the Czech Trade Inspection Authority)

• Results of joint inspections by the Czech Trade Inspection Authority and the Czech Telecommunication Office in Liberec(press release from the Czech Trade Inspection Authority)

You will find clear information about the division of radio frequencies and the use of individual frequency bands at:

• http://spektrum.ctu.cz