KR20020071581A - Apparatus for Controlling A Tele-communication use in the office - Google Patents

Abstract

PURPOSE: A private communication control device is provided to connect a call, if the call is generated to a mobile phone with VoIP(Voice over Internet Protocol) from an extension phone, directly to a mobile communication network or an Internet network, without passing a PSTN(Public Switched Telephone Network), and to support a cable phone and a wireless phone as the extension phone to enable an extension subscriber to perform speech through the cable or wireless phone. CONSTITUTION: A wireless phone controller, if a predetermined extension is called in a state that wireless phones(W1-Wn) are registered correspondingly to cable phones(T1-Tn), calls a wireless phone corresponding to the extension, and forms a wireless speech channel upon hook-off of the wireless phone. A VoIP server(26) connects a speech path with an incoming party through an Internet network for a VoIP call originated from the cable phones(T1-Tn) or wireless phones(W1-Wn). A mobile phone interface part(20) delivers a mobile communication call originated from the cable phones(T1-Tn) or wireless phones(W1-Wn) to a mobile phone base station(22) through a calling mobile terminal, to deliver the corresponding mobile communication call directly to a mobile communication network without passing a PSTN. A CPU(Central Processing Unit,10) makes the originated call delivered through an optimum path based on a type of the call originated from the cable phones(T1-Tn) or wireless phones(W1-Wn), and makes corresponding cable phone and wireless phone corresponding to the predetermined called extension simultaneously called. And a switching part(16) switches a voice signal path for originating and incoming calls of the cable phones(T1-Tn) or wireless phones(W1-Wn).

Description

Apparatus for Controlling A Tele-communication use in the office}

The present invention relates to an internal communication control device, and more particularly, when a call from an extension telephone to a mobile telephone or VoIP occurs, the call is directly connected to a mobile communication network or an internet network without passing through the PSTN network, and is wired as an extension telephone. An indoor communication control apparatus for supporting a telephone and a wireless telephone to enable an extension subscriber to make a telephone call through a wired telephone or a wireless telephone.

In general, an internal branch exchange (hereinafter referred to as PBX) used by an enterprise for internal telephone exchange, when an external call arrives through a PSTN, analyzes a called number for the call and then uses an extension telephone (corresponding to the called number). Outputs a ring signal to the telephone to output the ringing from the extension telephone, and when the extension telephone is hooked-off by the user taking a call / receiver in response to the telephone ring, the normal telephone call path is set to the extension. A series of exchange operations is performed to allow a telephone call to be made between the telephone (called party) and any caller.

In addition, since the conventional PBX is fixedly installed in the PSTN network, even if an extension user accommodated in the PBX enters a mobile communication number after pressing a specific identification number, for example, "9" to make an outside call, If the call is determined to be a mobile communication call, the call is transferred to a mobile communication exchange that manages the mobile communication call.

When a called party establishes a call path between the extension user and the called party of the mobile terminal in response to a call, the call path is connected to the mobile communication network via the wired network. The user had to pay both the PSTN network fee and the mobile network fee.

On the other hand, when an extension number assigned to a PBX is called, a ring signal is output to the extension telephone corresponding to the extension number, and the user is notified of the call status. Due to the characteristics of the phone, it is impossible to impart mobility, and there is a problem in that the call cannot be answered when the person in charge of the landline phone leaves the seat.

Therefore, the present invention was created to solve the above-mentioned problems. When a call from an extension subscriber to a mobile phone or VoIP occurs, the call is directly connected to the mobile communication network or the Internet without passing through the PSTN network. It is an object of the present invention to provide an internal communication control device that allows a subscriber to make a telephone call through a wired telephone or a wireless telephone by providing a subscriber with a wired telephone and a wireless telephone.

1 is a block diagram showing an internal configuration of an internal communication control apparatus according to an embodiment of the present invention;

2 is a flowchart for explaining the main operation of the internal communication control apparatus according to an embodiment of the present invention.

<Description of Symbols for Major Parts of Drawings>

10: central control unit 12: PBX

14: PBX matching unit 16: switching unit

18: SLIC unit 20: mobile phone interface unit

22: mobile phone base station 24: data conversion unit

26: VoIP server 28: WOS server

32: BTS

T1 to Tn: Wired telephone W1 to Wn: Wireless telephone

In order to achieve the above object, the internal communication control apparatus according to an embodiment of the present invention,

At the same time, a number of fixed line telephones with an extension number are connected, and the other end is connected to the PSTN network to perform an exchange operation so that an extension line is formed through the PSTN network and a call route for another wired telephone period. An indoor communication control device including an internal switching unit which performs an exchange operation so as to form a communication path of a period;

When a predetermined extension number is called while the wireless telephone is registered correspondingly to the landline telephone, the wireless telephone calls the wireless telephone corresponding to the extension number and forms a wireless call channel when the wireless telephone is hooked off. A controller;

A VoIP server to which an Internet voice telephone service call (VoIP call) originated from the wired or wireless telephone is connected to a called party and a call path through an internet network;

A mobile telephone interface unit for transmitting a mobile communication call transmitted from the wired telephone or a wireless telephone to a mobile telephone base station through a calling mobile terminal and transmitting the mobile communication call directly to a mobile communication network without passing through a PSTN;

Based on the type of the call originating from the wired telephone or the wireless telephone, the premises exchange unit, the wireless telephone controller, the VoIP server, and the mobile telephone interface unit are controlled to transmit the outgoing signal to the optimum route and to call the predetermined extension number. A central control unit controlling the premises exchange unit and the wireless telephone controller so that the wired telephone and the wireless telephone correspond to the same; And

And a switching unit which performs a switching operation of a voice signal path for an incoming / outgoing signal of the wired telephone or a wireless telephone under the control of the central controller.

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

1 is a block diagram showing an internal configuration of an internal communication control apparatus according to an embodiment of the present invention. As shown in the figure, the internal communication control apparatus according to an embodiment of the present invention includes a central control device (10). ), PBX 12, PBX matching unit 14, switching unit 16, SLIC unit 18, mobile phone interface unit 20, data conversion unit 24, VoIP server 26, WOS (Wireless) Office Solution) server 28, and BTS (Base Transceiver Station) (32).

The central controller 10 analyzes the call type of the called number input from the extension wire telephone (T) or the wireless telephone (W) when a call connection is requested from the extension wire telephone (T) or the wireless telephone (W). According to the analysis result, the switching unit 16 is controlled so that the wired telephone T or the wireless telephone W is connected to the WOS server 28, the VoIP server 26, the mobile telephone interface 20, It performs a function of performing a series of controls to be connected to the DAA 14 signal.

The PBX matching unit 14 performs a function of matching the PBX 12 and the switching unit 16, and the switching unit 16 includes the SLIC unit 18, the PBX matching unit 14, and the Mobile telephone interface 20, the VoIP server 26, the WOS server 28 is connected to the wired telephone (T) and wireless telephone (W) is the SLIC unit 18, the PBX matching unit 14 ), And performs a switching operation so as to be connected to any one of the mobile phone interface unit 20, the VoIP server 26, and the WOS server 28.

Such a switching board 16 is implemented by using the telephone call device described in Korean Patent Application No. 2000-000211, 'Phone Call Device and Method between Caller and Callee', filed January 4, 2000 by the present applicant. This is possible, and the detailed structure of this switching board 16 is abbreviate | omitted in this embodiment.

The SLIC unit 18 is connected to an extension telephone line (T: T1 ~ Tn) to supply power for the phone and to transfer a DTMF (Dual Tone Multi Frequency) signal to the central control unit 10 for the call transfer Function to generate data.

The mobile telephone interface 20 is provided with a mobile terminal (HP1, HP2) for direct connection with a mobile communication network when the call command for the mobile communication call is received from the central control unit (10). Performs a function of requesting a call connection to the mobile phone base station 22 through HP2).

The mobile phone base station 22 transmits a call connection request message to a called terminal corresponding to a called number transmitted from the mobile terminal when the call connection request message is transmitted from the calling mobile terminal while managing the registered mobile terminal. Call, and when the called terminal responds to the call, it performs the function of connecting the call path of the calling mobile terminal and the called mobile terminal period.

The data conversion unit 24 performs a function of data conversion when the mobile phone base station 22 and the mobile phone interface unit 20 are connected by wire.

The VoIP server 26 transfers the call to the Internet network when the call control command is received by the central controller 10 to the VoIP (Internet Voice Call Service using Voice over Internet Protocol) to use the VoIP service. It supports voice coding and voice processing (echo processing, voice compression, etc.) technology, PSTN I / F technology, directory search technology for number conversion and signaling / control procedures, additional service support, and reliability support. Support such technology.

The WOS server 28 outputs a call signal to a corresponding wireless telephone when a call of a predetermined wireless telephone is requested by the central control apparatus 10. The call path between the calling phones is connected. In addition, the WOS server 28 stores wireless telephone information registered for each extension number and manages the state of each wireless telephone. Perform the function.

The BTS 32 performs the same function as the home base of the known Citi Phone.

The BTS 32 and the radio telephone (W; W1 to Wn) for transmitting / receiving an RF signal are called to the BTS 32 using a wireless public network, for example, a frequency band of 900 MHz to 2.4 GHz. Function to transmit RF signal about related signal and voice signal, receive RF signal about call processing related signal and voice signal transmitted from the BTS 32, perform reproduction processing, and output it so that user can recognize it. Do this.

In addition, reference numeral 40 shown in Fig. 1 is a data bus which is a data transmission path between the components.

Hereinafter, with reference to the flowchart shown in Figure 2 will be described in detail the main operation of the internal communication control apparatus according to an embodiment of the present invention.

If any wired telephone T is hooked off and a digit signal for a called number is input (S10), the SLIC unit 18 transmits a DTMF signal for the digit signal to the central controller 10. do.

Subsequently, the central control apparatus 10 analyzes the DTMF signal (S12) to determine which call type among the internal call / VoIP call / mobile communication call / wire call.

First, the central control apparatus 10 determines whether the corresponding call is an internal call (S16), and if it is determined that the outgoing call is an internal call without an external telephone identification digit, for example, '9' (Yes in S16). A predetermined control signal is applied to the SLIC unit 18 and the WOS server 28 so that the wired telephone and the wireless telephone corresponding to the called number are simultaneously called (S18).

On the other hand, the SLIC unit 18 by the control of the central control unit 10 outputs a ring signal to the landline telephone corresponding to the extension number to notify the user the call has arrived, the WOS server 28 The BTS 32 outputs a call connection request message to the radio telephone corresponding to the extension called number through the BTS 32 so that a ring signal is output through the radio telephone.

Then, the SLIC unit 18 and the WOS server 28 determines the response state of the wired telephone or cordless telephone, and when any one of the telephone line and the cordless telephone answers the call and hooks off the telephone. The central controller 10 controls the switching unit 16 to connect a call path between the outgoing landline telephone and the called telephone (wired telephone or wireless telephone) and to make a call to a telephone that does not answer the call. Abort.

On the other hand, if it is determined in step S16 that the call signal is not an internal call (No in S16), the central controller 10 determines whether the call signal is a VoIP call (S22), and the VoIP call identification digit. For example, if it is determined that '7' is an input VoIP call (Yes in S22), a predetermined control signal is applied to the switching unit 16 so that the outgoing landline telephone and the VoIP server 26 are connected in signal form (S24). ).

Then, the central control apparatus 10 transmits the calling party subscriber information and the called party subscriber information (called party number) to the VoIP server 28 for the call connection request. Based on this, the VoIP server 26 connects to the Internet. Calling the called party through the network to connect the call path between the outgoing landline and the called terminal of the called party (S26).

On the contrary, if it is determined in S22 that the call signal is not determined to be a VoIP call (No in S22), the central controller 10 determines whether the call signal is a mobile communication call (S28), where the call signal is external. If it is determined that the mobile communication service provider network number, for example, '01X' is input in the state in which the telephone identification digit, for example, '9' is input (Yes in S28), a predetermined control signal is applied to the switching unit 16 to the After the outgoing landline and the mobile phone interface unit 20 are connected in a signal manner, the mobile telephone interface unit 20 transmits the calling party subscriber information and the called party (called party number) to the mobile phone interface unit 20 (S20).

Subsequently, the mobile phone interface unit 20 transmits a call setup request message for the called number through the outgoing mobile terminals HP1 and HP2 based on the mobile communication service provider identification number included in the called number. The mobile phone base station 22 receiving the message delivers a call setup request message to the called party corresponding to the called number and calls the called party.

Thus, when the called subscriber answers the call, the outgoing landline telephone and the incoming mobile terminal are directly connected through the mobile communication network without passing through the PSTN network. You can save call charges compared to paying the fee.

On the other hand, if it is determined in step S28 that the call signal is not a mobile communication call (No in S28), the central controller 10 determines whether the call signal is a wired call (S34), and the call signal is an external telephone. If the identification digit, for example, '9' is determined as the input external wired call (YES in S34), the central control apparatus 10 applies a predetermined control signal to the switching unit 16 so that the originating wireline telephone and the PBX 12 ) Is connected to the PBX matching unit 14 and at the same time transmits the calling party information and the called party information (called number) to the PBX 12 by the PBX matching unit 14 and the incoming subscriber information and incoming Subscriber information is transmitted (S38).

Subsequently, the PBX 12 transmits the calling subscriber information and the called subscriber information to the calling exchange through the PSTN network, and the calling exchange sends a call connection request message to the called exchange receiving the called subscriber based on the incoming information. When the called party's terminal is called, and the called party's terminal responds to the call, a call path is connected through the PSTN network to allow a telephone call between the outgoing landline and the incoming landline.

However, if it is determined by the central controller 10 that the digits input through the outgoing wire telephone are not for the internal call / VoIP call / mobile communication call / wired call (No in S34), the SLIC unit ( 18) through the outgoing landline to output a signal tone corresponding to the outage of the call to notify the outgoing call to the outgoing landline (S36).

In the main operation of the internal communication control apparatus according to the embodiment of the present invention described above, the central control apparatus 10 determines that it is an internal call in the process of classifying the type of the outgoing call, and then determines that the VoIP call is a mobile communication call. Although the determination is made in the following order, the present invention is not limited to this, but the present invention is not limited thereto, and the call type determination order may be changed to determine the type of the call signal through the changed determination order.

In addition, the present invention has described only the connection process of the call originating from the extension landline telephone, but can also process the outgoing call from the wireless telephone through a similar process, as well as for the call that came to the extension landline telephone. A similar process can be used to connect the channels.

According to the indoor communication control device according to an embodiment of the present invention as described above, according to the type of the call from the subscriber, the call can be selectively switched to the mobile communication network / Internet network / PSTN network to be delivered to the appropriate path When the call arrives at the extension number, the landline telephone and the wireless telephone registered with the extension number are called at the same time so that the user of the extension number can answer the call even when the user has left the seat.

As described above, when the outgoing call is a mobile communication call or a VoIP call, the present invention is directly transmitted to the mobile communication network or the Internet network without passing through the PSTN network. Because of this, there is an effect that can reduce the call charge.

In addition, the present invention is because the landline phone and the cordless phone is called at the same time when the call arrives to the extension telephone, if the user is located only in the communication area of the wireless telephone, even if the user does not have a seat, the telephone can be received through the wireless telephone There is an effect that can maximize the success rate.

On the other hand, the present invention is not limited to the above-described embodiment, but can be modified and modified within the scope not departing from the gist of the present invention, such modifications and changes should be regarded as belonging to the following claims. will be.

Claims (4)

At the same time, a number of fixed line telephones with an extension number are connected, and the other end is connected to the PSTN network to perform an exchange operation so that an extension line is formed through the PSTN network and a call route for another wired telephone period. An indoor communication control device including an internal switching unit which performs an exchange operation so as to form a communication path of a period; When a predetermined extension number is called while the wireless telephone is registered correspondingly to the landline telephone, the wireless telephone calls the wireless telephone corresponding to the extension number and forms a wireless call channel when the wireless telephone is hooked off. A controller; A VoIP server to which an Internet voice telephone service call (VoIP call) originated from the wired or wireless telephone is connected to a called party and a call path through an internet network; A mobile telephone interface unit for transmitting a mobile communication call transmitted from the wired telephone or a wireless telephone to a mobile telephone base station through a calling mobile terminal and transmitting the mobile communication call directly to a mobile communication network without passing through a PSTN; Based on the type of the call originating from the wired telephone or the wireless telephone, the premises exchange unit, the wireless telephone controller, the VoIP server, and the mobile telephone interface unit are controlled to transmit the outgoing signal to the optimum route and to call the predetermined extension number. A central control unit controlling the premises exchange unit and the wireless telephone controller so that the wired telephone and the wireless telephone correspond to the same; And And a switching unit which performs a switching operation of a voice signal path for an incoming / outgoing signal of the wired telephone or a wireless telephone under the control of the central controller. The method of claim 1, The central control apparatus controls the switching unit so that a voice signal path is formed to a terminal hooked off first of the wireless telephone and the wired telephone while the wireless telephone and the wired telephone are simultaneously called. . The method of claim 1, The wireless telephone is an internal communication control device, characterized in that using a wireless public network. The method of claim 1, And the central controller classifies the type of the outgoing signal based on the DTMF signal for the digits input from the wired or wireless telephone.