KR100285688B1 - Paging system - Google Patents

Abstract

PURPOSE: A paging system is provided to efficiently and reliably execute subscriber information construction, system extension, and subscriber information management by separately managing pager subscriber information through a dedicated system. CONSTITUTION: If the subscriber number of a called pager is received to an IPU(Intelligent Peripheral Unit) through a PSTN(S11), the IPU detects the called subscriber number and sends an information search signal for the subscriber to an MCU(Main Control Unit) through a LAN switching unit(S12). The MCU searches a subscriber information storage part for subscriber information(S13) and sends a subscriber information search result to the IPU through the LAN switching unit(S14). The IPU judges whether services are available for the subscriber, based on the subscriber information search result(S15). If services are available for the subscriber, the IPU fetches the subscriber's greetings from the subscriber information storage part or basic greetings from a voice processing part and sends them to the caller through the PSTN. At the same time, the IPU announces selection numbers corresponding to a preset service type in voice(S16). The IPU judges whether a service selection number is selected by the caller(S17). If a service selection number is selected and received, the IPU fetches an information voice from the voice processing part according to the selected number and sends it to the caller through the PSTN(S18). The MCU provides a service corresponding to the selected number to the caller(S19).

Description

Wireless Calling System for Convenient Subscriber Information Management and Call Processing Method Using the Apparatus

The present invention relates to a wireless calling system, and in particular, by separating the subscriber information management into a dedicated system, the subscriber can easily manage the subscriber information to improve the efficiency and reliability of large capacity subscriber information construction and system expansion and subscriber information management. A call processing method using a system and the apparatus.

Conventional radio calling system, as shown in Figure 1, comprises a radio call switching station 11, a radio base station 12, a radio pager 13 and a plurality of voice processing device 14, a general caller Press '012' or '015' with the telephone and then press the subscriber number of the pager 13 to be connected to the radio call switching center 11 through the public telephone network and the signal is transmitted to the base station 12 so that the pager 13 ), Or after the caller operates a specific button of the telephone according to the guide voice from the voice processing apparatus 14, and leaves a message by voice, the subscriber of the wireless pager 13 is notified of the reception of the voice message by the vibration or ring tone. The subscriber can listen to the voice message through the telephone.

As shown in FIG. 2, the radio call switching center 11 includes a network connection unit 21, a PCM codec unit 22, a switching unit 23, a dual tone multi frequency (DTMF) detection unit 24, a central processing unit ( 25), the subscriber information storage unit 26 is provided, and the network connection unit 21 matches two-wire analog telephone lines and converts them into four lines, occupies and recovers a call path, and receives them through a public telephone network. The subscriber call signal and the analog voice signal to the PCM (Pulse Code Modulation) codec unit 22 and the DTMF detection unit 24, and the PCM codec unit 22 receives the analog voice signal input through the network connection unit 21. The PCM voice data is converted into PCM voice data and output to the switching unit 23, and the PCM voice data applied through the switching unit 23 is converted into an analog voice signal and output. The switching unit 23 switches a plurality of different input channels applied from the PCM codec unit 22 to be connected to the corresponding voice processing device 14, and the DTMF detection unit 24 connects the network connection unit 21 through a public telephone network. The DTMF signal (subscriber call number and service selection number) is detected from the signal input to the control unit and applied to the central processing unit 25. The central processing unit 25 controls the switching unit 23 according to the subscriber call number applied from the DTMF detection unit 24 to connect with the corresponding voice processing unit 14, and controls the corresponding voice processing unit 14. The compression, reproduction, and input / output processing operations of the voice data are controlled, and the subscriber information storage unit 26 stores information on the pager subscriber, that is, information on types of services that can be provided, such as voice, text, and missed guidance.

The radio base station 12 is connected to the radio call switching center 11, and serves to transmit a radio call signal corresponding to the subscriber call number from the radio call switching station 11 to the radio pager 13.

When the wireless pager 13 receives the wireless call signal from the wireless base station 12, the wireless pager 13 informs the subscriber that the call or voice message has been received through a ring tone or vibration.

As shown in FIG. 3, the audio processing device 14 includes a data compressor 31, a data reproducing unit 32, and a data storage unit 33. The data compression unit 31 is a wireless call. The PCM voice data applied through the switching unit 23 of the switching center 11 is compressed into ADPCM voice data and stored in the data storage unit 33, and the data reproducing unit 32 is applied from the data storage unit 33. The ADPCM voice data is reproduced as PCM voice data and applied to the switching unit 23 side of the radio call switching station 11, and the data storage unit 33 stores ADPCM voice data applied from the data compression unit 31.

Such a conventional wireless calling system detects a subscriber's call number used by a connected pager when the wireless pager subscriber or any caller attempts to access a call for voice message recording or subscriber call. The subscriber finds the registered voice processing device 14 and routes the call to provide the service.

In the conventional wireless paging system as described above, since the pager subscriber information is stored in the wireless paging exchange station, when the corresponding paging system is expanded, the subscriber information is distributed to several switching stations, which makes it difficult to expand the corresponding paging system and manage the subscriber information. There is this.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems described above, and its object is to separate and manage information on subscribers of a pager in a wireless caller system into a dedicated system, thereby establishing a large capacity of subscriber information, system expansion, and subscriber information management. To improve efficiency and reliability.

A feature of the present invention for achieving the above object is an IPU connected to a public telephone network for relaying the system, and compressing, reproducing and storing voice for a pager subscriber; A microcontroller configured to control an operation related to a radio call while managing information on the radio pager subscriber; It includes a LAN switching unit for connecting the IPU and the MCU, and is connected to the Internet to interconnect with other regional systems.

The MCU includes an IPU control unit for controlling the operation of the IPU through the LAN switching unit; A subscriber information storage unit for storing information on the subscriber of the pager, that is, information on types of services available to the subscriber; And a subscriber information processing unit for retrieving subscriber information stored in the subscriber information storage unit and transmitting a subscriber information search result to the IPU through the IPU control unit and the LAN switching unit.

According to another aspect of the present invention, there is provided a mobile station comprising: a first process of transmitting an information search signal for a subscriber corresponding to the subscriber call number to the MCU when the subscriber call number of the wireless pager is received from the caller; A second process of searching for subscriber information after the first process, and then transmitting the corresponding subscriber information search result to the IPU; A third step of determining whether a service for the subscriber is available based on a result of searching for the corresponding subscriber information after the second step; If the service is available to the subscriber in the third process, the subscriber's greeting or the greeting provided by the system is transmitted to the caller, and the voice is guided by a selection number corresponding to a preset service type. A fourth step of determining whether a service selection number is received; A fifth process of transmitting a voice announcement for the service selection number when the service selection number is received in the fourth process, and providing a service corresponding to the service selection number to the caller; In the third process, if the service for the subscriber is not available, the sixth process of transmitting a guide voice for missing or suspended use.

1 is a block diagram of a conventional radio calling system.

FIG. 2 is a detailed block diagram of the radio call exchanger of FIG. 1;

3 is a detailed block diagram of the audio processing device of FIG. 1;

4 is a configuration block diagram of a wireless call system according to the present invention.

5 is a detailed block diagram of the IPU of FIG. 4;

6 is a detailed block diagram of the MCU of FIG.

7 is a flowchart illustrating a call processing operation of a wireless call system according to the present invention.

Explanation of symbols on the main parts of the drawings

41: Intelligent Peripheral Unit (IPU) 42: LAN Switching Unit

43: MCU (Main Control Unit) 44: other area system

51: network connection unit 52: PCM codec unit

53: switching unit 54: voice processing unit

55: DTMF detection unit 56: central processing unit

57: subscriber voice storage 61: IPU control unit

62: subscriber information processing unit 63: subscriber information storage unit

64: Internet access control

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 4, the wireless call system according to the present invention is connected to a public telephone network and relays the system, and compresses, reproduces, and stores voices of a wireless pager subscriber and an IPU 41 (Intelligent Peripheral Unit). And other regional systems via the Internet through a LAN switching unit 42 that connects the IPU 41 and the MCU (Main Control Unit) 43 and is connected to the Internet to perform interconnection with other regional systems 44. Comprising MCU (43) for providing the subscriber information to the MCU of (44).

As illustrated in FIG. 5, the IPU 41 includes a network connection unit 51, a PCM codec unit 52, a switching unit 53, a voice processing unit 54, a DTMF detection unit 55, and a central processing unit 56. And a subscriber voice storage unit 57, wherein the network connection unit 51 matches a two-wire analog telephone line to convert it into four lines, occupies and restores a call path, and receives a subscriber through a public telephone network. The call signal and the analog voice signal are output to the PCM codec unit 52 and the DTMF detection unit 55, and the PCM codec unit 52 converts the analog voice signal input through the network connection unit 51 into PCM voice data for switching. The unit 53 is output to the side 53, and the PCM voice data applied through the switching unit 53 is converted into an analog voice signal and output. The switching unit 53 switches a plurality of different input channels applied from the PCM codec unit 52 so as to be connected to the corresponding voice processing unit 54, and the voice processing unit 54 is applied through the switching unit 53. The PCM voice data is compressed and stored as ADPCM voice data, and the ADPCM voice data is reproduced as PCM voice data and applied to the switching unit 53, and the DTMF detection unit 55 is input to the network connection unit 51 through the public telephone network. The DTMF signal (subscriber call number and service selection number) is detected from the signal and applied to the central processing unit 56. The central processing unit 56 controls the switching unit 53 according to the subscriber call number applied from the DTMF detection unit 55 to connect with the corresponding speech processing unit 54, and controls the corresponding speech processing unit 54 to control the voice data. Control the compression, playback and input / output processing of the subscriber, and the subscriber voice storage 57 stores the greeting of the wireless pager subscriber.

The LAN switching unit 42 matches signals input and output between the IPU 41 and the MCU 43, and is connected to the Internet to interconnect with other regional systems 44.

As shown in FIG. 6, the MCU 43 includes an IPU control unit 61, a subscriber information processing unit 62, a subscriber information storage unit 63, and an Internet access control unit 64. ) Controls the operation of the IPU 41 through the LAN switching unit 42, and the subscriber information processing unit 62 searches for subscriber information stored in the subscriber information storage unit 63 to switch the LAN with the IPU control unit 61. The subscriber information search result is sent to the IPU 41 through the unit 42, and the subscriber information storage unit 63 provides information on the types of services that can be provided, such as voice, text, and out-of-office guidance. Save it.

Call processing operations of the wireless call system according to the present invention configured as described above are performed in the order shown in FIG. 7.

First, when the subscriber call number of the wireless pager is received from the caller via the public telephone network through the public telephone network (step S11), the IPU 41 detects the corresponding subscriber call number and retrieves an information search signal for the subscriber of the corresponding wireless pager. Is sent to the MCU 43 side via the LAN switching unit 42 (step S12). After step S12, the MCU 43 retrieves the subscriber information stored in the subscriber information storage unit 63 (step S13), and then sends the corresponding subscriber information search result to the IPU 41 via the LAN switching unit 42. (Step S14). After step S14, the IPU 41 determines whether the service for the subscriber is available according to the result of the subscriber information search (step S15), and if the service is available for the subscriber, the subscriber's greeting stored in the subscriber voice storage 57 is available. Withdraws and sends to the caller through the public telephone network or the basic greeting provided by the system from the voice processing unit 54 to send to the caller through the public telephone network and voice guidance of the selection number corresponding to the preset type of service. (Step S16). After step S16, the IPU 41 determines whether the service selection number selected by the caller is received (step S17), and terminates the operation if the service selection number is not received, and if the service selection number is received, the IPU 41 determines the corresponding service selection number. The guide voice is taken out from the voice processing unit 54 and sent to the caller via the public telephone network (step S18). After step S17, the MCU 43 provides the caller with the service corresponding to the service selection number (step S19), and ends the operation. On the other hand, if the service for the subscriber is not available in step S15, the guide voice for missing or suspended use is withdrawn from the voice processing unit 54 and sent to the caller via the public telephone network (step S20), and the operation ends.

As described above, the present invention is to separate and manage the information on the subscriber of the pager in a wireless caller system to a dedicated system, it is possible to improve the efficiency and reliability of large capacity subscriber information construction and system expansion and subscriber information management. .

Claims (2)

An IPU matching a public telephone network and compressing, reproducing and storing voice for a pager subscriber; A MCU which controls and processes operations related to a wireless call while managing subscriber information for the pager subscriber; Subscriber information characterized in that it comprises a LAN switching unit for connecting the IPU and the MCU, the MCU is connected to other regional systems via the Internet, and transfers the subscriber information from the MCU to the IPU and other regional systems. Easy to manage wireless calling system. 2. The system of claim 1, wherein the MCU comprises: an Internet access control unit for accessing the Internet through the LAN switching unit and transmitting subscriber information to the other regional system; An IPU control unit for controlling the operation of the IPU through the LAN switching unit and transferring subscriber information to the LAN switching unit and the Internet access control unit; A subscriber information storage unit for storing the subscriber information, that is, information on types of services that can be provided to subscribers; The subscriber information stored in the subscriber information storage unit is retrieved and the subscriber information is transmitted to the IPU through the IPU control unit and the LAN switching unit, and the IPU control unit, the Internet access control unit, the LAN switching unit, and the other local system through the Internet. And a subscriber information processing unit for transmitting subscriber information.

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