Abstract: A method of communicating devices using virtual buttons comprises receiving, by a user device, a store code and transmitting, by the user device, the store code to a server; searching, by the server, for virtual buttons corresponding to the store code, and transmitting, by the server, to the user device the virtual buttons corresponding to the store code; providing, by the user device, an interface configured to receive a location identifier and button selection input among the virtual buttons received from the server, and transmitting, by the user device, the location identifier and the button selection input to the server; transmitting, by the server, to a staff device the location identifier and the button selection input; and receiving, by the staff device, the location identifier and the button selection input and displaying information associated with the location identifier and requested service corresponding to the button selection input.

Abstract: A paging system comprise paging buttons configured to transmit a first signal including a paging request; a server configured to: receive the first signal, identify which of the paging buttons transmit the first signal received by the server, and transmit to at least one portable device a second signal including information on an identifier corresponding to the identified paging button that transmits the first signal, and the paging request; and at least one portable device configured to: display the identifier corresponding to the identified paging button and/or the paging request based on the second signal, and transmit to the server a third signal in response to an acceptance input responded to the paging request. The server transmits to at least one portable device a fourth signal confirming that the portable device transmitting the third signal is matched to the identified paging button in response to the third signal.

Abstract: A method of communicating devices using virtual buttons comprises receiving, by a user device, a store code and transmitting, by the user device, the store code to a server; searching, by the server, for virtual buttons corresponding to the store code, and transmitting, by the server, to the user device the virtual buttons corresponding to the store code; providing, by the user device, an interface configured to receive a location identifier and button selection input among the virtual buttons received from the server, and transmitting, by the user device, the location identifier and the button selection input to the server; transmitting, by the server, to a staff device the location identifier and the button selection input; and receiving, by the staff device, the location identifier and the button selection input and displaying information associated with the location identifier and requested service corresponding to the button selection input.

Abstract: A method of communicating devices using virtual buttons comprises receiving, by a user device, a store code and transmitting, by the user device, the store code to a server; searching, by the server, for virtual buttons corresponding to the store code, and transmitting, by the server, to the user device the virtual buttons corresponding to the store code; providing, by the user device, an interface configured to receive a location identifier and button selection input among the virtual buttons received from the server, and transmitting, by the user device, the location identifier and the button selection input to the server; transmitting, by the server, to a staff device the location identifier and the button selection input; and receiving, by the staff device, the location identifier and the button selection input and displaying information associated with the location identifier and requested service corresponding to the button selection input.

Abstract: A paging system comprise paging buttons configured to transmit a first signal including a paging request; a server configured to: receive the first signal, identify which of the paging buttons transmit the first signal received by the server, and transmit to at least one portable device a second signal including information on an identifier corresponding to the identified paging button that transmits the first signal, and the paging request; and at least one portable device configured to: display the identifier corresponding to the identified paging button and/or the paging request based on the second signal, and transmit to the server a third signal in response to an acceptance input responded to the paging request. The server transmits to at least one portable device a fourth signal confirming that the portable device transmitting the third signal is matched to the identified paging button in response to the third signal.

Abstract: A service request system comprises: a call bell device transmitting service request information in response to a customer's input; a first gateway device receiving the service request information through a local area communication; a service server connected to the first gateway device over an Internet and, in an online status, receiving the service request information from the first gateway device through the Internet; a staff terminal connected to the service server over the Internet and receiving the service request information from the service server through the Internet; a local server connected to the first gateway device and the staff terminal over the local area communication, monitoring availability of the Internet and, in an offline state, receiving the service request information of the call bell device from the first gateway device and transmitting the service request information of the call bell device to the staff terminal through the local area communication.

Abstract: A paging system comprise paging buttons configured to transmit a first signal including a paging request; a server configured to: receive the first signal, identify which of the paging buttons transmit the first signal received by the server, and transmit to at least one portable device a second signal including information on an identifier corresponding to the identified paging button that transmits the first signal, and the paging request; and at least one portable device configured to: display the identifier corresponding to the identified paging button and/or the paging request based on the second signal, and transmit to the server a third signal in response to an acceptance input responded to the paging request. The server transmits to at least one portable device a fourth signal confirming that the portable device transmitting the third signal is matched to the identified paging button in response to the third signal.

Abstract: A method of communicating devices using virtual buttons comprises receiving, by a user device, a store code and transmitting, by the user device, the store code to a server; searching, by the server, for virtual buttons corresponding to the store code, and transmitting, by the server, to the user device the virtual buttons corresponding to the store code; providing, by the user device, an interface configured to receive a location identifier and button selection input among the virtual buttons received from the server, and transmitting, by the user device, the location identifier and the button selection input to the server; transmitting, by the server, to a staff device the location identifier and the button selection input; and receiving, by the staff device, the location identifier and the button selection input and displaying information associated with the location identifier and requested service corresponding to the button selection input.

Abstract: A method of communicating devices using virtual buttons comprises receiving, by a user device, a store code and transmitting, by the user device, the store code to a server; searching, by the server, for virtual buttons corresponding to the store code, and transmitting, by the server, to the user device the virtual buttons corresponding to the store code; providing, by the user device, an interface configured to receive a location identifier and button selection input among the virtual buttons received from the server, and transmitting, by the user device, the location identifier and the button selection input to the server; transmitting, by the server, to a staff device the location identifier and the button selection input; and receiving, by the staff device, the location identifier and the button selection input and displaying information associated with the location identifier and requested service corresponding to the button selection input.

Abstract: A paging system comprise paging buttons configured to transmit a first signal including a paging request; a server configured to: receive the first signal, identify which of the paging buttons transmit the first signal received by the server, and transmit to at least one portable device a second signal including information on an identifier corresponding to the identified paging button that transmits the first signal, and the paging request; and at least one portable device configured to: display the identifier corresponding to the identified paging button and/or the paging request based on the second signal, and transmit to the server a third signal in response to an acceptance input responded to the paging request. The server transmits to at least one portable device a fourth signal confirming that the portable device transmitting the third signal is matched to the identified paging button in response to the third signal.

Abstract: A paging system comprise paging buttons configured to transmit a first signal including a paging request; a server configured to: receive the first signal, identify which of the paging buttons transmit the first signal received by the server, and transmit to at least one portable device a second signal including information on an identifier corresponding to the identified paging button that transmits the first signal, and the paging request; and at least one portable device configured to: display the identifier corresponding to the identified paging button and/or the paging request based on the second signal, and transmit to the server a third signal in response to an acceptance input responded to the paging request. The server transmits to at least one portable device a fourth signal confirming that the portable device transmitting the third signal is matched to the identified paging button in response to the third signal.

Abstract: A service request system comprises: a call bell device transmitting service request information in response to a customer's input; a first gateway device receiving the service request information through a local area communication; a service server connected to the first gateway device over an Internet and, in an online status, receiving the service request information from the first gateway device through the Internet; a staff terminal connected to the service server over the Internet and receiving the service request information from the service server through the Internet; a local server connected to the first gateway device and the staff terminal over the local area communication, monitoring availability of the Internet and, in an offline state, receiving the service request information of the call bell device from the first gateway device and transmitting the service request information of the call bell device to the staff terminal through the local area communication.

Abstract: A paging system comprise paging buttons configured to transmit a first signal including a paging request; a server configured to: receive the first signal, identify which of the paging buttons transmit the first signal received by the server, and transmit to at least one portable device a second signal including information on an identifier corresponding to the identified paging button that transmits the first signal, and the paging request; and at least one portable device configured to: display the identifier corresponding to the identified paging button and/or the paging request based on the second signal, and transmit to the server a third signal in response to an acceptance input responded to the paging request. The server transmits to at least one portable device a fourth signal confirming that the portable device transmitting the third signal is matched to the identified paging button in response to the third signal.

Abstract: A paging system comprise paging buttons configured to transmit a first signal including a paging request; a server configured to: receive the first signal, identify which of the paging buttons transmit the first signal received by the server, and transmit to at least one portable device a second signal including information on an identifier corresponding to the identified paging button that transmits the first signal, and the paging request; and at least one portable device configured to: display the identifier corresponding to the identified paging button and/or the paging request based on the second signal, and transmit to the server a third signal in response to an acceptance input responded to the paging request. The server transmits to at least one portable device a fourth signal confirming that the portable device transmitting the third signal is matched to the identified paging button in response to the third signal.

Abstract: A method of communicating devices using virtual buttons comprises receiving, by a user device, a store code and transmitting, by the user device, the store code to a server; searching, by the server, for virtual buttons corresponding to the store code, and transmitting, by the server, to the user device the virtual buttons corresponding to the store code; providing, by the user device, an interface configured to receive a location identifier and button selection input among the virtual buttons received from the server, and transmitting, by the user device, the location identifier and the button selection input to the server; transmitting, by the server, to a staff device the location identifier and the button selection input; and receiving, by the staff device, the location identifier and the button selection input and displaying information associated with the location identifier and requested service corresponding to the button selection input.

Abstract: A paging system comprise paging buttons configured to transmit a first signal including a paging request; a server configured to: receive the first signal, identify which of the paging buttons transmit the first signal received by the server, and transmit to at least one portable device a second signal including information on an identifier corresponding to the identified paging button that transmits the first signal, and the paging request; and at least one portable device configured to: display the identifier corresponding to the identified paging button and/or the paging request based on the second signal, and transmit to the server a third signal in response to an acceptance input responded to the paging request. The server transmits to at least one portable device a fourth signal confirming that the portable device transmitting the third signal is matched to the identified paging button in response to the third signal.