Abstract: Disclosed is a power control apparatus of a public telecommunication terminal which makes the public telecommunication terminal (e.g., a public telephone) disposed in every place provided with a power control program so that the public telecommunication terminal itself can turn on/off the power supplied thereto in an automatic way.

Abstract: A public telephone with a cash payment function is connected to a server of a banking agency through a telephone network and verifies whether a card, such as a credit card, inserted by a user is available for the requested cash service and, as the result of the verification, provides an amount of money required by the user from a currency cassette, thereby facilitating the cash withdrawal for the user. Therefore, an operator can use an inexpensive telephone network, instead of an exclusive line, thereby reducing operational cost.

Abstract: A system for providing service in wireless network environment using customer relation management comprises: an operation server provided with integrated customer information database and customer preference database; and an access point connected to the operation server in server-client distribution environment and installed at a hot-spot, for recognizing a client wireless terminal that enters detection area; wherein the operation server comprises: a customer authentication module for determining whether the customer is registered to the customer information database using a device profile of the detected wireless terminal and a user identifier in response to a request of the access point; and a customer event analysis module for analyzing event information of the customer generated in the hot-spot and extracting customer preference information; the access point comprises: a recognition module for recognizing the client wireless terminal that enters the detection area, transferring a remote agent program and

Abstract: A public telecommunication terminal used for both of PSTN telephony and VoIP telephone and a method of controlling thereof are disclosed. When a user takes a handset, a dial tone is generated, and a dial tone corresponding to a number the user dials is generated and outputted. When a telephone call completion button is selected, the dialed number is transmitted to the Internet in the form of data packet. The public telecommunication terminal checks if the Internet is available, and it is automatically converted into PSTN mode when the Internet is not available.

Abstract: A system for multimedia public telecommunication terminal networking is disclosed.

Abstract: Disclosed is a power control apparatus of a public telecommunication terminal which makes the public telecommunication terminal (e.g., a public telephone) disposed in every place provided with a power control program so that the public telecommunication terminal itself can turn on/off the power supplied thereto in an automatic way.

Abstract: A public telephone with a cash payment function is connected to a server of a banking agency through a telephone network and verifies whether a card, such as credit card, inserted by a user is available for the requested cash service and, as the result of the verification, provides an amount of money required by the user from a currency cassette, thereby facilitating the cash withdrawal for the user. Therefore, an operator can use an inexpensive telephone network, instead of an exclusive line, thereby reducing operational cost.

Abstract: Disclosed is lottery service system and method utilizing an integrated circuit card, by which a user can utilize not only a communication service, but also an additional lottery service. The system includes a server, and a terminal. The terminal has a card reader section, a card verification section, a display section, an input section, a memory section, and a first communication section interconnected to a network. The server has a second communication section interconnected to the network, a lottery ticket sale information storage section, a lottery ticket information generation section, a cipher algorithm section, a lottery ticket purchaser verification section, and a control section.

Abstract: Disclosed is an advertising method using a public telephone and a system for providing free or discounted call service according to watching of an advertisement. A public telephone, a relay server, a communication line provider, an advertiser server and an Internet information server are connected through a communication network together. The relay server receives advertisement information from the advertiser server or the Internet information server and displays advertisement information through a display device of the public telephone for advertisement. The public telephone periodically downloads renewed advertisement information from the relay server to renew it. A user is benefited by free-call or discounted-call service depending on seeing and hearing of an advertisement over a given number. The multifunctional public telephone, which is installed at an unspecified location and displays advertisements, provides advertising effect of a high level for a low price to advertisers.