Voice Services


CDT-Virtual Operator

ČDT-Virtual operator provides a connection of a smaller operator to fixed public telephone network. The product is used mainly by minor providers of voice services who are interested in access to other public fixed telephone networks through ČD - Telematika telephone network.

Product creates a "virtual tandem exchange" for the customer and allows them to become a "virtual operator". The customer does not have to invest in expensive technology to ensure voice services for their clients, even with a small number of clients.

Service parameters

  • Connection to ČD-T communications network via ISDN PRI port or via SIP protocol
  • Transit call to/from the public communications networks from/to the customer's network
  • Number portability from the existing telephone service operator
  • Continuous monitoring of the network
  • Technical support and assistance in troubleshooting 24 hours a day
  • Per-second billing
  • Peak traffic: weekdays from 7.00 a.m. to 7.00 pm, other periods - low traffic
  • Customer charges the end-users

Main benefits

  • Financial cost savings
  • Possibility of further service portfolio expansion
  • Opportunity to increase sales

Who is the service intended for?

  • Local Internet providers
  • Local CSP/ASP (Content/Application Service Provider)

Supplementary services

  • CDT-Telehousing – we provide the customer with space in our data centers to place their own transmission technology
  • CDT-800 – reverse charge calls

CDT-800

Service ČDT-800 offers reverse charge calls.

The product is suitable for customers who want their clients have a chance to obtain free information. It is one of the most effective means of direct communication with customers.

Service parameters

  • establishment and operation of 800 XXX XXX number
  • fax and voice transmission
  • number portability from other operators
  • continuous monitoring of the network
  • technical support and assistance in troubleshooting 24 hours a day
  • per-second billing
  • availability from both fixed and mobile networks
  • number is only available in the Czech Republic

Main benefits

  • favourable cost price
  • one contact number for the Czech Republic
  • customers can choose the number

Who is the service intended for?

  • large and medium-sized companies
  • government and local government

CDT-Voice Direct

CDT Voice-Direct offers connection of the customer's private branch exchange to the public telephone network.

The product is designed especially for business customers who need high-quality fixed voice services. The service offers calls within the Czech Republic and international calls, free allocation of user numbers and portability of numbers.

Service parameters

  • Calls within the Czech Republic and abroad
  • Allocation of subscriber numbers for free according to customer needs
  • Phone numbers are published in the phonebook
  • Portability of numbers from the current operator
  • Continuous monitoring of the network
  • Technical support and assistance in troubleshooting 24 hours a day
  • Connection to ČD-T communications network via ISDN PRI ports or via SIP protocol
  • Fax transmission to groups G3 2.4 - 14.4 Kb/s G4 64 Kb/s
  • Data transfer rate in multiples of 64 Kb/s
  • Per-second billing

Main benefits

  • Advantageous prices for five destinations in the Czech Republic and abroad according to the customer's choice
  • Financial costs savings

Who is the service intended for?

  • Large and medium-sized companies
  • Government and local government

Supplementary services

  • CDT-800 – reverse charge calls

Contact Us

Relevant Products and Services

Data Services

Do you require VPN, quick optical channel connection or constant transfer capacity?

Internet

The CDT-Internet service enables access to the Internet via the ČD - Telematika network