About us - History

Telecommunications Research Institute, founded in 1953, since its inception engaged in the development of telecommunications equipment. Besides the development of complete systems, both exchanges and transmission equipment, the engineers had to deal with the development of components from which these systems were designed. These are namely the development of electromechanical components, relays, switches and the development of the necessary instrumentation. From a historical perspective, it is worth mentioning the development of control centers for power, PLC systems and systems for the transmission of digital signals from remote locations.

International PBX

Exchange systems from the own development was delivered to Czechoslovakia network, as well as to many other countries, especially to the Eastern bloc. Hierarchically highest ranked was the international telephone exchange MN60, which was installed in Prague, Moscow and Berlin. The sixties division also successful developed a first digital transmission system (KPK 24) which has already been fully equipped with semiconductor devices and has been constructed in another form, with 24 channels and 7-bit coding of voice channel (EU recommendations 30 channels and 8-bit coding systems were not implemented at the time).

A new era

1989 opened new possibilities and perspectives. The research institute first became a state enterprise TESLA VÚT, which was privatized and subsequently transformed into a modern manufacturing company. Followed by the development of a series of business activities, which in successive steps shaped the present TTC Holding.

Up-to-date technological solutions

TTC TELEKOMUNIKACE continuously provide its customers with the modern technical solutions and the latest results of research, development and innovation in communications technology. Besides the design, installations and servicing of supplied systems provides consultancy services and engineering in various forms.

Head office
TTC TELEKOMUNIKACE, s.r.o.
Třebohostická 987/5
100 00 Praha 10, Czech Republic

Phone: +420 234 052 111
Fax: +420 234 052 999
E-mail: info@ttc.cz
Manufacturing department
TELLUS Premises
Naskové 3
150 00 Praha 5 - Košíře

Phone: +420 234 053 304
Fax: +420 234 053 245
E-mail: vyroba@ttc.cz
Identification data

EU VAT ID No.: CZ41194403
The company is registered
in the Commercial Register of the
Municipal Court in Prague, no. C4736