KR0141311B1 - Method for generating the special ringing in the full electronic switching system - Google Patents

Abstract

This particular call signal providing method is to provide a service that can generate a call signal with a specific enforcement ratio to the called party in the electronic switchboard to select the calling subscriber to make a call. To this end, the present invention is a call signal reception check process for checking whether a call signal is received from an originating subscriber, and when a call signal is received, a control requesting a call signal generation service having a specific interruption ratio to the received call signal. Determining whether a specific call signaling service request is made to determine whether a signal is included; A first call signal generation process which is generated until the called subscriber hooks off a call signal having a specific enforcement ratio when a specific call signaling service is required; If the calling subscriber does not require a specific call signal generation service, the second call signal generation process of generating a call signal having a general enforcement ratio is performed.

Description

How to provide specific call signal in electronic switch

1 is a schematic diagram of an electron exchanger for carrying out the method according to the invention,

2 is a flowchart illustrating a method for providing a specific call signal according to the present invention.

* Explanation of symbols for main parts of the drawings

101: subscriber A 102, 112: membership card

103, 114: control processor 104, 115: tone generating unit

105, 116: Dual Tone Multi Frequency (DTMF)

106, 117: time switch 109: space switch

108: space switch processor 110: trunk

The present invention relates to a method for providing a call signal in an electronic switchboard, and more particularly, to a method for providing a call signal having a specific interruption ratio so that a called party can select and make a call. It is about.

In general, since a ringing signal used for a telephone is provided at a constant enforcement ratio regardless of which telephone, a called party (or a receiving subscriber) has a problem in that it cannot select a calling subscriber who wants to make a call. That is, since the same call signal is generated regardless of the incoming call from the subscriber who does not want to call or from the subscriber who wants to call, the receiving subscriber does not respond to the call signal. Corresponded by Because of this, even if the incoming call to inform the emergency situation may occur when the call is not made.

Accordingly, an object of the present invention is to provide a method for providing a specific call signal that can select a calling subscriber by providing a service that can generate a call signal having a specific enforcement ratio to the called subscriber.

In order to achieve the above object, a method according to the present invention is a method for providing a call signal having a specific enforcement ratio through an all-electronic switchboard having a call signal service function having a specific enforcement ratio. Call signal reception checking process for checking whether a signal has been received; When a call signal is received, determining whether a specific call signal generation service request is made to determine whether the received call signal includes a control signal for requesting a call signal generation service having a specific enforcement ratio; A first call signal generation process which is generated until the called subscriber hooks off a call signal having a specific enforcement ratio when a specific call signaling service is required; If the originating subscriber does not require a specific call signal generation service, it comprises a second call signal generation process for generating a call signal having a general enforcement ratio.

Next, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram of an electronic switch for performing a method for providing a specific call signal according to the present invention, the subscriber card 102 corresponding to the subscriber telephone 101, the ring signal generator 107, the control processor (103), tone generator 104, dual tone multi frequency (DTMF) 105, subscriber card 112, ring signal generator 113 corresponding to time switch 106 and other subscriber's telephone 111 ), The control processor 114, the tone generator 115, the Dual Tone Multi Frequency (DTMF) 116, the trunk 110 for transmitting and receiving signals between the time switch 117 and other switching stations, space with other exchanges A space switch 108 which performs switching, and a space control processor 107 for controlling the operation of the space switch 108.

2 is a flowchart illustrating a method for providing a specific call signal according to the present invention.

Next, the operation of the method for providing a specific call signal according to the present invention will be described with reference to FIGS. 1 and 2.

Prior to the description, the following specific call signal providing process will be described, for example, in the case where the subscriber 101 shown in FIG. 1 is set as the outgoing subscriber and the subscriber 111 is set as the called subscriber for the purpose of understanding the invention. Let's do it.

First, the subscriber 111 who wants to be provided with a specific call signal generation service registers with the password in the same way as a general service. That is, it registers by MMC (Man Machine Communication) method using a console.

In such a registered state, a call signal is transmitted through the corresponding subscriber card 102, the time switch 106, the space switch 108, the trunk 110, etc., from the calling party 101 registered at any exchange. When the transmission is made, the switching station in which the called subscriber is registered is received and processed in the reverse order to notify the corresponding control processor 114 of the called subscriber 111 (step 201). At this time, the sending process of the calling party 101 and the receiving process of the called party 111 are performed in the same manner as in the prior art.

That is, when the calling party 101 picks up the handset to send a call for a call, it is in a hook off state and passes through the subscriber card 102 to the time switch 106 and the control processor 103. Path). Accordingly, the control processor 103 detects the hook-off state and controls the tone generating unit 104 to generate a tone using the time switch 106 to transmit the tone to the calling subscriber 101. When the tone is sent out, the calling party 101 inputs the telephone number of the subscriber who wants to make a call through a key input means (not shown). At this time, if a special service is desired, a control signal for this is also input. If it is detected that the key data is applied by the calling party 101, the control processor 103 controls the tone generating unit 104 to stop the tone generation.

When all information on the called subscriber 111 is applied by the calling subscriber 101, the control processor 103 controls the time switch 106 to analyze the authorized information and form a call path with the corresponding subscriber. In addition, the space control processor 109 is also linked to the control processor 103 to control the space switch 108 to send a call signal through the trunk (110).

On the other hand, the receiving subscriber 111 side is connected to the passage of the space switch 108 and the time switch 117 when the signal received through the trunk 110 is a corresponding call signal to the corresponding control processor 114 To provide. When it is recognized that the call signal is received by the authorized signal, the control processor 114 proceeds to step 202 to determine whether a control signal for requesting a specific call signal generation service is applied to the applied received signal.

If it is determined that the specific call signaling service is requested, the flow proceeds to step 203. At this time, the specific call signal generation service request decision is based on a content search for a control signal applied together with the called subscriber 111 phone number. The contents of the control signal include a password inputted by the incoming subscriber 111 at the time of service registration and a specific call signal generation service code designated by the telephone station. When the password is different when searching for such a control signal, it is determined that a specific call signal generation service is not required.

If the password is different or if only the telephone number of the called subscriber 111 is input in this way, it is determined that the specific call signal generation service is not required, and the flow proceeds to step 208.

In step 208, the control processor 114 controls the subscriber card 112 to provide a call signal having the same interruption ratio as before.

The subscriber card 112 is controlled by the control processor 114 to provide the ring subscriber, which is periodically generated by the ring signal generator 113, to the called subscriber 111 at 20 Hz. Currently, the ring signal has a cycle of 1 second and 2 seconds.

On the other hand, if it is determined that the specific call signal generation service is requested as a result of checking in step 202, the flow proceeds to step 203 to determine whether the specific call signal generation service registration state for the called party 111 is maintained. . As a result of the determination, when the incoming subscriber 111 releases the service registration, the process proceeds to step 208, and the call signal having the general enforcement ratio is controlled as described above. However, if the determination result of step 203 is maintained, the process proceeds to step 204.

In step 204, the control processor 114 controls the corresponding subscriber card 112 so that the ring generated by the ring signal generator 113 is generated in a specific specific call signal form. 101 to provide ring-back tone. Accordingly, the calling party 101 can recognize that the telephone ring of the called party 111 is ringing with a specific call signal, and the called party 111 can also recognize that the caller is a specific person with a call signal having a specific enforcement ratio. do.

The call signal having such a specific interruption ratio is maintained until the telephone of the called subscriber 111 is hooked off. When the called party 111 is hooked off in step 206, the process proceeds to step 207 to connect the passages of the time switch and the space switch to make a substantial call.

As described above, the present invention controls the generation of a call signal having a specific enforcement ratio in the electronic switchboard, whereby the called party can make a selective call.

Claims (3)

CLAIMS 1. A method for providing a call signal having a specific interruption ratio through an all-electronic switch having a call signal service function having a specific interruption ratio; Call signal reception checking process for checking whether a call signal has been received from an originating subscriber; When the call signal is received, determining whether a specific call signal generation service request is made to determine whether the received call signal includes a control signal for requesting a call signal generation service having a specific enforcement ratio; A first call signal generation step of generating a call signal having a specific enforcement ratio until the called subscriber hooks off a specific call signal generation service; And a second call signal generation process of generating a call signal having a general enforcement ratio if the calling subscriber does not request a specific call signal generation service. The method of claim 1, wherein the specific call signal providing method further comprises: when the specific call signal generation service is requested in the process of determining whether to request the specific call signal generation service, the called party receives the specific call signal before generating the specific call signal. A registration check process to check whether a registered service is provided to be provided; And a third call signal generation step of generating a call signal having a general enforcement ratio when the incoming subscriber is not registered in the registration check step. The method of claim 1 or 2, wherein the control signal used in the process of determining whether the specific call signal generation service request is included is configured to include a service code for the specific call signal service and a password of the called subscriber. Method of providing a specific call signal in an electronic switch.