What is the telephone card?
Telephone card -is a small plastic card of reminding credit, which is possible to use for a long-distance and international negotiations by phone (cellular or stationary). Similar cards have some formats - for example they can be bought in a booth for cash or ordered in network. In any case telephone cards as a rule have the following general features: the number of accesses on the switchboard where the commands necessary for performance calling are written down, and also personal identification number (PIN) necessary for registration of a call in the telephone company.
At the moment there is a new format of telephone cards which allow to establish connection with help of SMS (SMS Calls). The registered user of a card sends the message with number on which he wishes to call, on number of service and connection is established. At use of mobile phones such tariffs allow not to give payment for a call to the mobile operator (entering calls, as a rule, are free-of-charge) basically such cards are got through the Internet.
A telephone card is not only a means of payment. A telephone card also services local and international telecommunication from any telephone set, even from the disk payphone which doesn't have an output on intercity.
Telephone card will allow you to choose one of two ways of establishment of telephone connection: automatic or through the operator. Establishments of connection in the automatic way are made probably from a telephone set having an opportunity of transition in a voice-frequency mode of a set and the modern payphone.
In the USA and the countries of the Western Europe service of Telephone cards was already recognized by clients. Such telephone cards are widely used at the embassies. Russian embassy found application for such telephome cards. As telephone cards are irreplaceable help Russian visa registration, authentication of given documents, internationa calls with the purpose of verification of the information necessary for acknowledgement or a refutation of the information given by the client. Service telephone cards are given by such telecommunication giants as Cable Wireless, Sprint (USA), AT*T, British Telecom, Global One. In the last some years service T.Card experiences the present boom in Russia. In particular, in Moscow, St.-Petersburg now telecommunication services on T.Card are given by such leading operators of city, as: WestCall, BCL, Metrocom, group of companies Global One and others. Do not lag behind capitals and regions. So special value has positive experience of introduction of T.Card service as one of leading operators of Northwest region - Open Society Murmanelektrosvjaz.
The main difference of the Telephone card from other types of the cards used in telecommunication systems lies in absence of special (mechanical or magnetic) devices of identification and storage of the information. Telephone cards do not contain magnetic strips, chips, microcomputers, do not demand valuable additional devices (POS-terminals, etc.) for reading of information.
Telephone cards as a matter of fact play role of simply memorandum for the client with the instruction of sequence of actions for reception of any service of communication and a code (a sequence of symbols (figures) - personal identification number (PIN), providing the access to services of communication to the client - international, interurban communication, switched access to the Internet, a VoIP-telephony, directory and other additional services). Thus telephone cards can be made of paper, cardboard, metal and plastic. They can be of different types: prepaid (Prepaid system), with balance updating, credit, corporate telephone cards (conducting several cards on the uniform account).
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