Sigma-T, OOO NPO

Automatic telephone exchanges
Systems of automation of technological processes
 Full list ...

Devices of the commutation for the channels of cable communication systems
Distribution and switching equipment, telephone, selector and optional equipment
Switchgear, distributors and telephone equipment
 Full list ...

Installation of telephone systems
Services in installation, start-adjusting and maintenance service of the equipment for systems of telecommunication
Services of organizations - operators of telephone local wireless communications networks
Services of telecommunication additional, improving service of the subscriber
 Full list ...