Network interviewing system
An access system, network access technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as large occupation
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no. 1 example
[0121] Now, the working procedure of the client computer 101 in the first embodiment will be described.
[0122] FIG. 8 is a flow chart explaining a first embodiment of the operation of the client shown in FIG. 2. FIG.
[0123] In addition to the initialization processing of the device, when an interrupt request from the modem control device 306 is input at step S601, the operation process of the client starts. The modem control means 306 must be initialized in advance so that an interrupt request can be input to the information processing means 301 when the modem control means 306 ends the telephone call from the server side modem 104 .
[0124] The information processing unit 301 has known the end of the server-side telephone call from the interruption of the modem control unit 306, and instructs the modem control unit 306 to perform an off-hook operation in step S602. Next, the server-side modem 104 and the client-side modem 103 that make the telephone call are connected t...
no. 2 example
[0178] Fig. 15 is a flow chart explaining the operation of the client shown in Fig. 2 in the second embodiment.
[0179] The second embodiment is a simplified modification of the first embodiment and does not use an access request identifier when making an access request. Step S603 to step S605 included in the operation (FIG. 8) in the first embodiment are omitted here.
[0180] In the second embodiment, the "Access Request Identifier" is not transmitted, instead, if the telephone call at the modem 103 on the client side stops (once the call stops), it can be determined that this is not a failed stop call from the particular server 102 . Thus, if the telephone call of the client 101 stops at step S1201, the client 101 instructs the modem 103 to go on-hook in the same way as in the first embodiment, and then instructs the modem 103 to go off-hook immediately at step S1203.
[0181] The process followed by waiting for line disconnection in step S1204 in the second embodiment i...
no. 3 example
[0190] Fig. 17 is a flow chart explaining the operation of the client shown in Fig. 2 in the third embodiment.
[0191] The third embodiment is a modification to the first embodiment, adding additional functions. Specifically, where communication of "identifier confirming receipt of response to access request" is performed, communication of "attribute information for data communication" is performed, and before client 101 dials up connection, reference data communication attribute is added. Operates to determine whether the client 101 is to respond to the access request from the server 102. The idea can be realized here that at the location of the client 101, the user refers to the attribute information of the data communication to determine whether it will respond to an access request from the server 102, and receives an instruction for dial-up connection from the user through the input device 302.
[0192] In FIG. 17, after the client 101 transmits the identifier in respons...
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