KR20010020015A - No-charge Communication Service Method - Google Patents

Abstract

PURPOSE: The free call service method, which is provided to free call service subscribers who listen to an advertisement, is provided to maximize the effect of the advertisement by selecting and transmitting an advertisement according to a calling subscriber's location and identification. CONSTITUTION: In case that a service user inputs a service number, a DTC(Digital Trunk Circuit) in a PBX(Private Branch Exchange) connects the call through digital interfacing with a PSTN(Public Switched Telephone Network)(S1). The DTC receives a ring through the PSTN and transmits the ring to an ARS(Audio Response System) side through a SLC(SLC) in the PBX(S1). At the same time, an RMFC(R2 Multi Frequency Circuit) in the PBX confirms the caller's phone number using an R2 signaling method(S3) and transmits the confirmed phone number to the ARS side through an RS232C serial communication port(S4). An ATC(Analog Trunk Circuit) in the ARS, detecting the ring transmitted through the PBX(S5), hooks off according to the control of an MPU(S6) and sends a primary advertising message stored in a DKU through a VPC(S7). The ARS searches the caller phone number in a subscriber database(S8). If the caller phone number is not the phone number of a subscriber registered in the subscriber database, the ARS reads a negative information message from the DKU, sends it to the caller through the PBX(S9) and cuts off the call path(S10). In case that the caller phone number is the phone number of a subscriber registered in the subscriber database, the ARS reads a positive information message from the DKU and sends it to the caller through the PBX(S11).

Description

Free call service method {No-charge Communication Service Method}

The present invention relates to a free calling service method, and more particularly, to a free calling service method for providing a free telephone call only to a free calling service subscriber.

As shown in FIG. 1, a PBN 20, a PBX 20 connected to the PSTN 10 through an analog interface, and the PBX 20 are configured to perform a general telephone call service. ) ARS 30 is connected to the analog interface.

Here, the PBX 20 includes an ATC 21 for connecting to the PSTN 10 through an analog interface and an SLC 22 for connecting to the corresponding ARS 30 through an analog interface.

In addition, the ARS 30 is connected to the analog interface with the PBX 20 to perform the functions such as ring detection and loop occupancy, the ATC 31, the voice guidance function and DTMF (Dual Tone) It includes a VPC 32 for detecting and transmitting Multi Frequency, an MPU 33 for processing call processing and data of the ARS 30, and a DKU 34 for storing data. have.

In the above-described configuration, the operation of the free call service will be described as follows.

First, when a service user inputs a number of a service for which a service provider (or receiver) pays a call fee, the ATC 21 provided in the PBX 20 receives a ring through the PSTN 10 to receive the corresponding PBX. It sends out to the ARS 30 side through the SLC 22 provided in the 20.

Accordingly, the ATC 31 provided in the ARS 30 receives a ring through the PBX 20 and is off-hook under the control of the MPU 33 provided in the ARS 30. After hooking, the advertisement stored in the DKU 34 included in the ARS 30 is sent out through the VPC 32 provided in the ARS 30.

And, after sending out the announcement and the 'call your desired phone number' will be sent out announcement, and when the service user listens to the announcement and enter the number you want to call through the PBX (20) said It is sent to the ARS 30 side.

Accordingly, the VPC 32 of the ARS 30 recognizes the DTMF, stores the DTMF, and performs a hook-flash through the ATC 31 of the ARS 30. Send the DTMF.

Then, the PBX 20 forms a call path so that the caller and the called party can talk to each other. If a busy tone is detected in the VPC 32 of the ARS 30, the call is made by the ARS 30. Is in progress, 'and then cut the channel. In addition, if there is no answer for a certain period of time, after the announcement 'outgoing the call' announcement to cut the call to perform the operation.

However, in the conventional technology, anyone can use the service only after hearing the advertisement and knowing the toll-free telephone service number. From the point of view of the service provider, there is a problem in the load of the system, a problem in operating costs, and no information on the service user. There was a problem that could not be selected to provide an advertisement because it could not be grasped to maximize the advertising effect.

The present invention relates to a free call service method after listening to an advertisement for solving the above-described problems, and to perform a service for providing a free phone call after listening to an advertisement only for free call service subscribers, and also for member management. It is easy to check the location and identity of the sender, so that the advertisement can be selected and transmitted, maximizing the effectiveness of the advertisement.

1 is a block diagram showing a configuration for performing a conventional telephone call service.

Figure 2 is a block diagram showing the configuration for a free call service according to an embodiment of the present invention.

3 is a flow chart showing a free call service method according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

40: Public Switched Telephone Network (PSTN)

50: Private Branch Exchange (PBX)

60: ARS (Audio Response System)

70: RS232C serial communication port

51: DTC (Digital Trunk Circuit)

52, 61: ATC (Analog Trunk Circuit)

53: RMFC (R2 Multi Frequency Circuit)

54: Subscriber Line Circuit (SLC)

62: VPC (Voice Processing Circuit)

63: MPU (Main Processing Unit)

64: Disk Unit (DKU)

The free call service method according to an embodiment of the present invention for achieving the above object comprises the steps of: receiving a toll free service number from a PBX, connecting a call to a PSTN and a digital interface, and receiving and transmitting a ring; Identifying, by the RB signaling method, the calling telephone number in the PBX and transmitting the same through the serial communication port; Reading and sending the primary advertisement after detecting and off-hooking the ring in the ARS; Receiving the caller's telephone number in the ARS and performing a member search in a subscriber database; And when the received caller's telephone number is not a member registered in the subscriber database, the ARS cuts out a call path after transmitting a fraudulent announcement.

Alternatively, the free call service method according to an embodiment of the present invention allows the caller to perform DTMF input after transmitting an affirmation message when the received caller phone number is a member registered in the subscriber database in the ARS. Characterized in that further comprises the process.

Alternatively, the free call service method according to the embodiment of the present invention receives the caller's DTMF from the PBX, recognizes and stores the DTMF from the PBX in the ARS, and then sends it to the PBX after performing a hook-flash. Process of doing; Receiving a DTMF from the ARS at the PBX and transmitting a ring to a called party; Detecting a tone of the called party in the PBX to perform a call and confirm whether a service time limit has elapsed; A step in which the ARS is notified that the service time limit has elapsed from the PBX and reads and sends a secondary advertisement; After the PBX allows a call for a predetermined time, characterized in that it comprises the step of terminating the corresponding service.

The present invention connects a call to a PBX through a digital interface and sends a ring to the ARS when the service user presses a service number that the service provider pays for the call, and confirms the caller's telephone number using the R2 signaling method. Sends to the ARS through the RS232C serial communication port, and performs member search in the subscriber database of the caller's phone number received from the PBX through the RS232C serial communication port during the transmission of the primary advertisement. In this case, affirmative announcements are sent, allowing the service user to perform DTMF input, and in the case of non-members, to send negative announcements. Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, the PSTN 40, the PBX 50 connected to the PSTN 40 by a digital interface, and the PBX 50 are illustrated in FIG. 2. ARS 60 connected to an analog interface, and an RS232C serial communication port 70 for transmitting the caller's telephone number identified by the PBX 50 using the R2 signaling method to the ARS 60 side. .

Here, the PBX 50 uses the DTC 51 to connect the PSTN 40 as a digital interface, the ATC 52 to connect the PSTN 40 as an analog interface, and the R2 signaling scheme. And an RMFC 53 for performing R2 signal processing and DTMF signal processing such as checking a caller's telephone number, and an SLC 54 for connecting to the ARS 60 through an analog interface.

In addition, the ARS 60 is connected to the analog interface with the PBX 50 to perform the functions of ring detection and loop occupancy, such as ATC 61, and VPC performing voice guidance and DTMF detection and transmission functions. And an MPU 63 for processing call processing and data of the ARS 60, and a DKU 64 for storing data.

The free call service method according to the embodiment of the present invention configured as described above will be described with reference to the flowchart of FIG. 3.

First, when the service user inputs a service number for which the service provider or the receiver pays the call charge, the call is connected to the PSTN 40 through the digital interface from the DTC 51 provided in the PBX 50 (step S1). ), Receives the ring through the PSTN 40 and transmits the ring to the ARS 60 through the SLC 54 provided in the PBX 50 (step S2).

At the same time, in the RMFC 53 provided in the PBX 50, after confirming the caller's telephone number using the R2 signaling method (step S3), the confirmed caller telephone number is transferred through the RS232C serial communication port 70. The data is transmitted to the ARS 60 side (step S4).

Accordingly, the ATC 61 provided in the ARS 60 detects a ring received through the PBX 50 (step S5), and controls the MPU 63 provided in the ARS 60. Therefore, after off-hook (step S6), the primary advertisement stored in the DKU 64 provided in the ARS 60 is sent out through the VPC 62 provided in the ARS 60. (Step S7).

In addition, the ARS 60 transmits the primary advertisement to the caller via the PSTN 40 via the PBX 50, and the ARS 60 transmits the RS232C serial communication port from the PBX 50 to the sender. In step S8, a member search is performed on the calling party telephone number received through the subscriber database.

At this time, if the caller's telephone number received in the eighth step (S8) is not the member's telephone number already registered in the subscriber database, that is, the caller is a non-member, 'unregistered member. Please use it after signing up. 'After reading the negative announcement from the DKU 64 and sending it to the caller via the PSTN 40 via the PBX 50 (step S9), cutting the call path. (Step S10).

On the other hand, if the caller's phone number received in step 8 (S8) is the member's phone number already registered in the subscriber database, that is, if the caller is a member, affirmative message 'press the desired phone number' Is read by the DKU 64 and sent to the caller via the PSTN 40 via the PBX 50 (step S11), and allows the service user to perform DTMF input.

After the operation is not shown in Figure 3 is as follows, when the service user enters the recipient's number to listen to the positive announcement and call, the PBX (50) the called party number through the PSTN (40) Is received by the DTC 51, and the RMFC 53 of the PBX 50 transmits the called party number to the ARS 60 by performing DTMF signal processing.

The ATC 61 of the ARS 60 receives a DTMF signal through the PBX 50, and recognizes the DTMF signal in the VPC 62 of the ARS 60 to temporarily recognize the corresponding DTMF signal. After storing, hook-flash is performed through the ATC 61 of the ARS 60, and then the corresponding DTMF signal is transmitted to the PBX 50 side.

Accordingly, the PBX 50 receives a DTMF signal from the ARS 60, forms a call path so that the caller and the called party can talk to each other, and transmits a ring to the called party through the ATC 51.

At this time, the PBX 50 detects a tone of the called party. If the called party is in a busy state, the PBX 50 transmits a busy tone to the ARS 60, and the VPC 62 of the ARS 60. ) Detects a busy tone received through the PBX 50 and reads the busy announcement, 'is busy', from the DKU 64 to send the caller through the PSTN 40 via the PBX 50. After the call is sent to the user, the call path is cut.

In addition, the PBX 50 checks the case where there is no response for a predetermined time and transmits a non-response sound to the ARS 60 side, and the VPC 62 of the ARS 60 receives the PBX 50 through the PBX 50. It detects the non-answering sound and sends out the non-answering announcement saying 'I don't answer the phone'.

On the other hand, the PBX 50 checks the case in which the called party responds to perform the call, and checks the case where the caller and the called party have passed a certain time, that is, the service time limit.

In addition, the PBX 50 informs the ARS 60 that the service time limit has elapsed, and the VPC 62 of the ARS 60 detects the secondary advertisement stored in the DKU 64. Will be sent out.

Accordingly, the ARS 60 sends the secondary advertisement through the PBX 50 through the PSTN 40 and terminates all services after allowing the PBX 50 to continue the call for a predetermined time. .

As described above, the present invention confirms whether the service user is registered with the service member and confirms the caller's telephone number, so that the member can be easily managed and the sender's location and identity can be checked and the advertisement can be selected and transmitted. It can be maximized.

Claims (3)

Receiving a toll free service number from the PBX, connecting a call to the PSTN through a digital interface, and receiving and transmitting a ring; Identifying, by the RB signaling method, the calling telephone number in the PBX and transmitting the same through the serial communication port; Reading and sending the primary advertisement after detecting and off-hooking the ring in the ARS; Receiving the caller's telephone number in the ARS and performing a member search in a subscriber database; And transmitting the fraudulent announcement if the caller's telephone number received by the ARS is not a member registered in the subscriber database. The method of claim 1, And if the received caller's telephone number is a member registered in the subscriber database in the ARS, causing the caller to perform DTMF input after sending a positive announcement. The method according to claim 1 or 2, Receiving the sender's DTMF from the PBX, recognizing and storing the DTMF from the PBX in the ARS, and then transmitting to the PBX after performing a hook-flash; Receiving a DTMF from the ARS at the PBX and transmitting a ring to a called party; Detecting a tone of the called party in the PBX to perform a call and confirm whether a service time limit has elapsed; A step in which the ARS is notified that the service time limit has elapsed from the PBX and reads and sends a secondary advertisement; Free calling service method comprising the step of terminating the service after allowing the call in the PBX for a predetermined time.