KR20040094546A - A device and a method of call processing with mutual calling for exchange - Google Patents

Abstract

PURPOSE: A call processing device for mutual calls within switching centers is provided to confirm whether an originated number and a called number are identical with each other if a calling party and a called party simultaneously call each other, and to set a communication path with the called party based on the calling part, thereby immediately connecting mutual calls. CONSTITUTION: A subscriber unit(120) is connected with plural subscribers, transmits call connection request signals while transmitting state information of each communication line, and outputs a signaling signal to the subscribers. A call setup unit(130) inputs the call connection request signals while setting a communication path, and controls a call connection between a calling party and a called party if an originated number is identical with a called number. A path translator(150) translates the call connection request signals into path information, and outputs the translated path information. A local line unit(140) is connected with other switching center through a local line by a control signal.

Description

A DEVICE AND A METHOD OF CALL PROCESSING WITH MUTUAL CALLING FOR EXCHANGE}

The present invention relates to call processing when two callers subscribed to the same exchange call each other at the same time, and in particular, if the caller calling number and the called party's call number are the same, the caller immediately calls the caller based on the first caller. An apparatus and a method for mutual call processing between exchange stations for call connection processing are provided.

When the exchange station is connected to multiple subscribers and receives a call connection request signal or dialing signal from a specific subscriber, the exchange station analyzes and switches the applied dialing signal to establish a communication path and call. It is a communication system device that allows communication by connection.

The switching center checks the occupancy state of the called line or line of the called party in which the communication path is established, and if the line is busy, outputs a busy tone signal to the caller, If the IDLE state is not occupied, the called party outputs an incoming ring or ringing signal to the called party so that a ring or bell sound is generated. It outputs the (RING BACK TONE) signal to recognize the response status of the called party and the hook on / off status.

That is, the switching center detects, confirms, and analyzes the called line condition on the communication path, and outputs an incoming call signal to the called party only when it is in an idle state rather than a busy state.

For example, in a mutual call where two parties joined to the same exchange station simultaneously call each other, the communication lines of each other are busy, and the exchange station outputs a busy signal to each other so that the call connection does not proceed and communication is performed. After a certain time has elapsed, a call connection attempt with the other party must be repeated.

Therefore, there is a need to solve the problem of not being able to make a call immediately in the case of a mutual call where each subscriber in the same switching center simultaneously calls each other's counterparts for urgent communication.

Hereinafter, an internal interchange call processing method according to the prior art will be described with reference to the accompanying drawings.

1 is a functional configuration diagram of a general switching center system, and FIG. 2 is a flowchart of a method for internal interchange call processing according to the prior art.

Referring to FIG. 1, a general switching center system includes: a plurality of subscribers (10, 15) joined to the switching center and connected and communicated by calling and called; An exchange station (20) connected to the plurality of subscribers (10, 15) and setting a corresponding communication path since the switching process is performed by a call connection request signal; And a public switching network (PSTN) 30, which is connected to the switching center 20 and establishes a connection path with another communication system or communication network.

Hereinafter, a general switching center system having the above configuration will be described in detail with reference to the accompanying drawings.

When the subscriber 10 wants to call another subscriber 15 subscribed to the switching center 20, the switching center 20 analyzes and switches the call number authorized from the subscriber, and sets the corresponding communication path.

When the subscriber 10 requests a connection to another communication system or communication network, the switching center switches to connect the corresponding path through the public communication network 30.

For example, when the first subscriber 10 calls the second subscriber 15 and at the same time the second subscriber 15 calls the first subscriber 10, that is, in the case of simultaneous mutual call, the first subscriber 10 calls the second subscriber 15. The exchange station 20 recognizes that the communication line of the first subscriber 10 is occupied and is in use, and the busy station BUSY is occupied by the communication line of the second subscriber 15. Recognize that it is a condition.

In the case of simultaneous mutual call, the switching center 20 monitors and confirms that each communication line is occupied and busy, as described above, and the second subscriber 15 occupies the communication line to the first subscriber 10. By outputting the busy signal that is in communication, the second subscriber 15 also outputs the busy signal that the first subscriber 10 is in communication by occupying the communication line.

Therefore, since the call connection is not made in the case of the mutual call where the first subscriber 10 and the second subscriber call each other at the same time, it is time-consuming and must communicate immediately after a predetermined time elapses. There is no such thing as troublesome.

Hereinafter, referring to FIG. 2, a call processing method of internal switching internal exchange according to an example of the prior art will be described.

A first step (S10) of determining whether a call connection request signal is applied from the first subscriber (10) by the switching center (20); A second step (S20) of analyzing and switching the call connection request signal and setting a communication path when the call connection request is received from the first subscriber (10) as determined in the first step (S10); The switching center 20 monitors the second subscriber 15 connected to the communication path set in the second step S20 to determine whether the communication line is occupied in a busy state or in an idle state that is not occupied. A third step (S30) of determining the recognition; If it is determined in the third step (S30) that the communication path of the second subscriber 15 is not occupied in the idle (IDLE) state, the switching center 20 outputs the ringing bell signal to the second subscriber 15 to avoid Notifying that the call has been made, the first subscriber 10 outputs a ring back tone signal corresponding to the ringing tone signal, and the call state and hook on / off of the second subscriber 50 (HOOK ON / OFF). A fifth step (S40) for recognizing a state and a fifth step (D) of determining whether the second subscriber 15 who has received the incoming ring signal of the fourth step (S40) is hooked off to communicate. S50); When the second subscriber 15 hooks off in the fifth step S50, a sixth process is performed after the communication is performed by the call connection between the first subscriber 10 and the second subscriber 15. Step S60; When the line LINE, which is the communication line of the second subscriber 15, is busy, as determined in the third step S30, the exchange station 20 transmits a busy tone to the first subscriber 10. ) And a seventh step S70 of outputting the signal and proceeding to the end.

Hereinafter, the call processing method of the internal call of the switching center will be described in detail by an example of the prior art having the above configuration.

For example, when the switching center 20 inputs a signal for requesting a call connection from the first subscriber 10, that is, unique to the second subscriber 15 calling the second subscriber 15, which is a communication counterpart. When a telephone number dialing signal is input (S10), the incoming call connection request signal is analyzed and switched to set the communication path between the first subscriber 10 and the second subscriber 15. In operation S20, it is determined whether the line state of the second subscriber 15 connected to the communication path set as described above is a busy or idle state (S30).

If the line state of the second subscriber 15 is in the idle state in the determination (S30), the switching center 20 outputs an incoming ring signal to the second subscriber 15 to recognize that the call has been made. Since the first subscriber 10 outputs a ring back tone signal (S40), the first subscriber 10 is connected to a communication path, and the switching center 20 proceeds with the call of the second subscriber 15. At the same time, it is determined whether the hook-off (HOOK OFF) state or the hook-on (HOOK ON) state at the same time (S50), the second subscriber 15, the communication partner in the determination (S50) hooks off (HOOK OFF) In case of communication through the call connection (S60) and proceeds to the end.

In addition, when the busy line BUSY is occupied and occupied by the communication line or line of the called party in the third step S30, the switching center 20 transmits the busy tone to the first subscriber 10. BUSY TONE) is output to indicate that communication is impossible because the second subscriber 15 is currently occupying the communication line (S70) and proceeds to the end.

However, in the prior art of the above configuration, the first subscriber 10 calls the second subscriber 15 and the second subscriber 15 calls the first subscriber 10 at the same time. The first subscriber 10 is in a busy state occupying its own communication line, and the second subscriber 15 is also busy in occupying its own communication line.

Accordingly, the switching center 20 outputs a busy tone signal to the first subscriber 10 and also outputs a busy tone signal to the second subscriber 15, so that a call connection is not made. There is a problem in that the call connection request is terminated and waits for a predetermined time before the call connection request is communicated again.

In the present invention, in the case of a mutual call where a caller and a called party subscribed to the same exchange call each other at the same time, each caller and call number are determined to be the same, and the same number is determined. It is an object of the present invention to provide a call processing apparatus and method for mutual call in an exchange station that immediately establishes and communicates with a called party.

In order to achieve the above object, the present invention is connected to a plurality of subscribers in a matched state, and receives and transmits a call connection request signal and simultaneously transmits a state of each communication line, and transmits a signaling signal to the corresponding subscriber by a corresponding control signal. A subscriber unit for outputting to; A call setup unit for translating and inputting a call connection request signal input from the subscriber unit, switching to set a communication path, and if the calling number and the calling number connected to the busy communication line are the same, a call setting unit for controlling call connection between the caller and the called party. Wow; A path translation unit connected to the call setting unit and translating a call connection request signal applied by the control signal into path information; And a trunk line section connected to the call setting section and connected to another switching station through a trunk line by the control signal.

In addition, the present invention has been made in order to achieve the above object, the call setup section of the exchange process the route information when the call connection request signal from the subscribing caller to translate the route information and set the communication path by switching; A checking step of detecting and checking the calling number and the calling number if the called line connected to the communication path of the process is busy; In the above process, if it is determined that the calling number and the calling number are the same, the caller and the called party are connected, and the communication process proceeds to the end.

1 is a functional configuration diagram of a general switching center system;

Fig. 2 is a flow chart of a method for internal interchange call processing according to the prior art;

Fig. 3 is a functional block diagram of a call processing device for mutual exchange in an exchange station according to the present invention;

4 is a flow chart of a call processing method for inter-exchange calls in accordance with the present invention.

** Explanation of symbols on the main parts of the drawing **

100 caller 110 callee

120: subscriber 130: call setup unit

140: route translation unit 150: national office

DESCRIPTION OF EMBODIMENTS Hereinafter, an apparatus and method for calling internal exchanges in a switching center according to the present invention will be described with reference to the accompanying drawings.

3 is a functional block diagram of a call processing apparatus for internal switching internal exchange according to the present invention, and FIG. 4 is a flow chart of a method for calling internal switching internal exchange according to the present invention.

Referring to Fig. 3, a call processing apparatus for internal switching of an internal switching center according to the present invention is connected to a plurality of subscribers in a matching state, and receives and transmits a call connection request signal, while simultaneously providing status information of each communication line. By transmitting the signaling signal to the subscriber according to the control signal, and monitors and reports the communication line occupied state of the callee 110 by the control signal of the call setup unit 130, the ringing bell signal, ring A subscriber unit 120 for outputting a signaling signal of a back tone signal and a busy tone signal, respectively;

Translating and inputting the call connection request signal input from the subscriber unit 120, switching (SWITCHING) to set the communication path, and if the calling number and the calling number detected in the communication line of the busy (BUSY) state and the caller The callee is controlled to make a call connection, and outputs a call connection request signal applied from the subscriber unit 120 to the path translation unit 140, inputs translated path information, and switches to the translated path information. (SWITCHING) process to set the communication path, and report the line state of the set communication path, if the called caller communication line state is occupied and used busy (BUSY) state, if the calling number and the call number is the same And, if the call number and the call number is the same in the confirmation call setting unit 130 for controlling to call the caller and the called party, and

The call connection request signal, which is connected to the call setting unit 130 and applied by the control signal, is translated and outputted as path information, and the call connection request signal received from the call setting unit 130 together with the control signal is received. A route translation unit 140 for checking route information by analyzing the number and outputting the route information to the call setup unit 130;

A trunk line unit 150 connected to the call setting unit 130 and connected to another switching station through a trunk line CO according to a control signal;

And the caller 100 is connected to the subscriber unit 120 and dialing (DIALING) the unique phone number of the called party that is the communication counterpart and communicates by call connection,

Called party 110 is connected to the subscriber unit 120 and the caller 110 is connected to the caller in the established communication path.

EMBODIMENT OF THE INVENTION Hereinafter, with this invention of the above structure, the call processing apparatus of internal exchange of exchange offices is demonstrated in detail with reference to attached drawing.

The caller 100 dials the unique telephone number of the called party 110 which is the counterpart to communicate with, and applies it to the subscriber unit 120 as a call connection request signal, and the subscriber unit 120 receives the authorized call connection request signal. Enter the matching (MATCHING) state and delivers to the call setup unit (130).

The call setup unit 130 outputs the applied call connection request signal to the path translation unit 140 along with a corresponding translation request control signal, and the path translation unit 140 analyzes and translates communication path information. The translated route information is output to the call setup unit 130 as follows.

Since the call setup unit 130 performs the switching process using the path information received from the path translation unit 140, the communication path is set, and the communication path set as described above is connected to the callee 110 through the subscriber.

The subscriber unit 120 monitors the occupation state of a line or line, which is a communication path connected to the called party 110, and reports the monitored state information to the call setup unit 130 as described above. And analyzing whether the reported callee line state information is occupied in busy state or in idle state (IDLE) state, and if the result of the analysis is not occupied in idle state (IDLE) state Since the control unit 120 outputs signaling information, the ringing signal is output to the called party 110, and the ringback tone signal associated with the ringing signal is output to the caller. .

In addition, when the callee line is occupied and in use as a result of the analysis, the call setup unit 130 may call the caller 100 and the callee 110 call number detected through the busy line. Check and analyze whether the numbers identified as above are the same or not.

The call setup unit 130 outputs a busy signal to the caller 100 when the analysis results are not the same number. If the analysis result is the same number, the call setup unit 130 calls each other at the same time. Therefore, the caller 100 and the callee 110 call to communicate by controlling the call connection immediately.

In addition, when the caller 100 inputs a call connection request signal for connecting to another communication network, the call setting unit 130 switches to connect to another communication network through the trunk line unit 150.

Accordingly, according to the present invention having the above-described configuration, the call processing apparatus for internal switching of internal switching centers, in the case of the mutual call where the caller 100 and the callee 110 simultaneously call the other party, the calling number confirmation and the calling number As soon as the mutual call is confirmed by the confirmation, the call 100 of the caller 100 and the callee 110 are connected and communicated.

Hereinafter, a call processing method of internal switching internal exchange according to the present invention will be described with reference to FIG.

The call setup unit 130 of the exchange translates the route information when the call connection request signal is input from the subscribed caller 100 and establishes a communication path by switching. The call setup unit 130 sets the subscriber unit 120 by the call setup unit 130. Determining whether a call connection request signal is input from the caller 100 connected to the caller (S100); If the call connection request signal from the caller 100 is input in the step (S100), the step (S110) of translating the path information to be connected to the callee 110 by the analysis; A route process consisting of switching to the translated route information in step S110 and establishing a communication path between the caller 100 and the callee 110 (S120);

When the called line connected to the communication path of the path process is in a busy state, the calling party 110 connected to the set communication path is determined by detecting the calling number and the calling number and determining whether the called number is the same number. Determining whether a line (LINE) which is a communication path of the bus is occupied and in use in a busy or busy state (IDLE); If it is determined that the callee 110 line busy state in the process (S130), a step (S140) of checking the caller 100 and the caller call the caller 110 to communicate with the unique caller (100); A check step (S150) of determining whether the calling number of the caller 100 and the called number of the called party 110 identified in the step (S140) are the same or not the same number;

If it is determined that the calling number and the calling number are the same in the checking process, the caller 100 and the called party 110 are connected to the call to communicate and communicate with each other to proceed to the end (S160),

When the communication line of the callee 110 is determined to be in a standby state rather than in a busy state in the checking process (S130), the incoming call signal is output to the callee 110 under the control of the call setup unit 130 and the caller 100 is called. Outputting a ringback tone signal at (S170),

Determining whether a hook off signal is input from the called party 110 by the step S170, and proceeding to the communication step S160;

If it is determined that the calling number and the calling number are not the same in the checking process (S150), the subscriber unit 120 is controlled to output a busy signal to the caller 100, and then proceeds to the end (S190).

EMBODIMENT OF THE INVENTION Hereinafter, with the present invention of the above structure, the call processing method of internal exchange of switching centers is demonstrated with reference to attached drawing.

The call setup unit 130 constituting the switching center determines whether a dialing signal for requesting a call connection is input from the caller 100 through the subscriber unit 120 (S100), and the call connection request signal is determined by the determination (S100). When input, the corresponding path information is translated through the path translation unit 140 (S110), and switching is performed using the translated path information as described above, so that a path for communication is set (S130).

The call setup unit 130 determines whether the line of the called party 110 connected to the established communication path is busy or waiting state through the subscriber unit 120 (S130), and determines the busy state in the determination. When the caller 100 checks the caller 100 and the caller 110, the caller 100 calls the caller 100 to communicate with the caller 100. The caller 100 checks whether the caller 100 is the same or different number. S150), if it is determined that the calling number and the calling number are the same number in the determination (S150), the caller 100 and the callee 110 is connected to the call (CALL) to proceed with the communication (S160) to end do.

In addition, when the line (LINE) of the callee 110, the communication path is set in the confirmation process (S130) is not occupied standby (IDLE) state, the call setup unit 130 controls the subscriber unit 120 The signaling signal is controlled to be output, that is, the ringing tone signal is output to the callee 110, and the ringback tone signal is output to the caller 100 (S170).

As described above, when the called party 110 receives the incoming bell signal and recognizes that the called party is being called, the call setup unit generates a hook off signal by hooking off the corresponding handset HANDSET (S180). 130 controls to proceed to the communication process (S160) so that the call (CALL) of the caller 100 and the callee 110 is connected to make a communication and ends.

In addition, if the calling number of the caller 100 and the calling number of the callee 110 in the confirmation process (S150) is not the same, because the callee 110 is communicating with the other party, the recommendation The government 130 controls the subscriber unit 120 to output the signaling signal of the busy tone to the caller 100 (S190).

Therefore, in the case of the mutual call occurring inside the exchange, the caller 100 checks the caller 100's unique caller ID, and the caller 110 checks the caller's caller's caller number. If is the same, call each other at the same time, so that the call connection is made immediately based on the caller who called first, and communication proceeds.

In the present invention having the above-described configuration, in the case of mutual calling simultaneously called in the same exchange, it is determined whether the calling number and the calling number are the same, and if the numbers are the same in the judgment, the caller and the called party are immediately connected. There is an industrial use of communication.

In addition, in the case of mutual calls simultaneously calling each other, since a busy signal is generated and a certain time has elapsed, a call connection and communication are performed immediately without requiring a call connection, so that urgent communication is easy and convenient in use.

Claims (10)

A subscriber unit which is connected to a plurality of subscribers in a matching state and receives and transmits a call connection request signal and simultaneously transmits state information of each communication line, and outputs a signaling signal to the corresponding subscriber by the corresponding control signal; A call for translating and inputting a call connection request signal input from the subscriber unit, switching to establish a communication path, and controlling to call the caller and the called party if the calling number and the calling number detected in the busy line are the same With the government, A path translation unit connected to the call setting unit and translating the call connection request signal applied by the control signal into path information; And a trunk line section connected to the call setting section and connected to another switching station through a trunk line by the control signal. According to claim 1, A caller who accesses the subscriber unit and dials and inputs a unique telephone number of the called party, which is a communication counterpart, and communicates by call connection; And a called party which connects to said subscriber and communicates by calling with said caller through a set communication path. The method of claim 1, wherein the subscriber unit, The call setting unit monitors and reports the occupied state of the communication line occupied by the control signal, and outputs a signaling signal of a ringing tone signal, a ringback tone signal, and a busy tone signal, respectively. Call processing device. The method of claim 1, wherein the call setting unit, Outputs the call connection request signal applied from the subscriber unit to the path translation unit, inputs translated path information, switches to the translated path information to set a communication path, and reports a line state of the set communication path. Receiving and if the called party communication line state is busy, checks whether the calling number and the calling number are the same; and if the calling number and the calling number are the same in the confirmation, the caller and the called party are connected. A call processing device for mutual calling in an exchange country. The method of claim 1, wherein the path translation unit, And analyzing the called number of the call connection request signal input together with the control signal from the call setting unit to check the route information and output the route information to the call setting unit. The call establishment part of the exchange translates the path information when the call connection request signal is input from the subscribed caller and sets the communication path by switching. When the called line connected to the communication path of the process is busy, checking and detecting the calling number and the calling number and determining whether the call number is the same number; If the calling number and the calling number are determined to be the same in the above process, a call process for communicating with the caller and the called party, and performing a communication process. The method of claim 6, If the communication line of the called party is determined to be in a standby state rather than a busy state, outputting a ringing bell signal to the called party and controlling a ringback tone signal to the caller under the control of the call setup unit; And determining whether a hook-off signal is input from the called party by the process, and then proceeding to the communication process. The method of claim 6, If it is determined that the calling number and the calling number are not the same in the checking process, controlling the subscriber unit to output the busy signal to the caller and proceed to end. Way. The method of claim 6, wherein the route process, Determining whether a call connection request signal is input from a caller connected to a subscriber by the call setup unit; If the call connection request signal is input in the above process, the process of translating to the route information to access the callee by the analysis; And setting up a communication path between the caller and the called party by switching to the translated route information in the above process. The method of claim 6, wherein the checking process, Determining whether the line of the called party connected to the set communication path is occupied and busy or not in standby; If it is determined that the called line is busy, the checking of the calling party's calling number and the called party's calling number, respectively; And determining whether the calling party's calling number and the called party's calling number are the same number.