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  • CDMA
  • ISDN services
  • ISDN Additional
  • Cardphone


CDMA is one of the technologies of wireless digital communication and data transfer. CDMA can be installed where it is impossible to install an ordinary wire telephone.

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ISDN services

ISDN (Integrated Services Digital Network – Цифровая сеть интеграционных услуг) is an advanced technical solution for generalized provision of telecommunication services.

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ISDN additional services

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The use of CardPhones communication

CardPhones operate by four types of telephone cards.

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