JP2931652B2 - Telephone system - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial application field) The present invention relates to a telephone system having a so-called group paging service function, such as a private branch exchange.

(Prior Art) A group paging service function receives a request for a general call from an extension terminal such as an extension telephone or an attendant console to a desired group of extension telephones divided into a plurality of groups. A one-way communication path is formed with the extension telephones of the group according to the above, and the voice transmitted from the extension terminal is generated from the loudspeaker of the extension telephones of the group. The group of extension telephones involved in this general call is called a paging group.

By the way, when the paging groups are provided with groups Gr0 to Gr4 as shown in FIG. 4, for example, extension telephones can belong to a plurality of groups. And
If a request for a general call is made from an extension terminal, a busy tone is returned to the extension telephone and no general call is possible if there is no idle extension telephone in the request group. If there is a telephone, a one-way communication path is formed only for the vacant extension telephone.

(Problems to be Solved by the Invention) For this reason, in the conventional telephone system, it is impossible for the paging source terminal to know in which area within the group the communication path has been formed and the conversation has been transmitted. There is a problem in that it is not possible to continue the simultaneous call while knowing whether the message has been transmitted to the other party or the reaction.

The present invention has been made in view of such a problem of the conventional telephone system. The purpose of the present invention is to communicate with a desired party during a general call, and to grasp the spread and reaction of the conversation at the paging source terminal. It is to provide a telephone system to get.

[Structure of the Invention] (Means for Solving the Problems) A telephone system according to the present invention is directed to a plurality of extension telephones having a loudspeaker and a group composed of several extension telephones among the extension telephones. Simultaneously forming a one-way call communication path with the extension terminal of the extension telephone in an idle state of the corresponding group in response to a request for a simultaneous call by one-way call given from the extension terminal. A telephone system comprising a general call means for making a call, and whether or not an input is made from data for setting a two-way call and the other party's extension telephone from an extension terminal performing a one-way call to the group. Two-way call instruction detecting means for detecting the input of the corresponding data when the two-way call instruction detecting means detects the input of the corresponding data. Forming a bidirectional communication path between it and extension terminals and a predetermined extension telephone to perform out,
Bidirectional communication path forming means for generating an input voice from the predetermined extension telephone from a loudspeaker of the extension telephone in an idle state of the group.

(Operation) According to the above configuration, by performing a predetermined input from the extension terminal that has performed the general call and specifying a two-way call and the other party, a two-way call can be made between the extension terminal and the extension telephone of the other party requested. A communication path is formed, and the paging source can know how to reach the other party.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a configuration diagram of an embodiment of the present invention. 1 extension telephone, 1 ₁₁ to 1 _n4 represents an extension telephone set as a group. Group extension telephone 1 ₁₁ to 1 _n4 is G1~Gn belong to multiple groups. The extension telephone 1 has a handset 11, a dial key 13, a function key 14, and an LED 15 corresponding to the function key 14.
Is provided. The function key 14a is a key (GPG key) for requesting a service for group paging, and the function key 1
4b is a key (GPC key) for requesting a two-way call during a general call. _{Each of the} extension telephones ₁₁ 1 to 1 _n4 is provided with a microphone that enables voice input while the loudspeaker and the handset 11 are left.

Numeral 301 denotes a general call unit. In this example, for the sake of simplicity, only the extension telephone 1 is a paging source (a general call source). When off-hook is performed on the extension phone 1 and the GPG key 14a for paging request is operated, the LED 15a is turned on. Then, when a number (here, "1") indicating the paging group is input from the dial key 13 of the extension telephone 1, the paging means 301 determines whether or not there is a group corresponding to the number and whether the group is empty. It detects whether there is an extension telephone in the state. If these conditions are aligned, return overflow tons or Bijiiton is to extension telephone 1 performs call to the extension telephone empty state of the conditions are met extension station 1 _{11-1 13} (delivery, etc. of a predetermined tone) Then, a tone indicating that preparation is being performed is also sent to the extension telephone 1 that is the paging source, and then the handset of the handset 11 of the extension telephone 1 and the loudspeaker of the empty extension telephone in the group of the other party are transmitted. speech path T ₁ of the between is formed. In this state, a simultaneous call is made from the extension telephone 1. So, The attendant of the extension phone 1 and want to see whether or listen to the story in the extension telephone 1 ₁₃ of the group G1. Then, the operator of the extension phone 1 has the GPC key 14b
Operate. As a result, the LED 15b is turned on to indicate that identification information of the extension telephone of the other party of the two-way communication (extension number indicated by "1" in the figure) can be input. Therefore,
By operating the dial key 13 of the extension telephone 1, identification information (here, “13”) of the other party's extension telephone of the two-way communication is input, and this is received by the two-way communication instruction detecting means 302 to be assigned to the group G 1. It detects whether there is an extension telephone having identification information and whether the extension telephone is empty. Here, if not, the two-way call instruction detecting means 302
Sends an overflow tone or Bijiiton to extension phone 1, extension telephone 1 ₁₃ with the identification information when present in an empty state gives identification information to the two-way communication path forming means 303. Bidirectional communication path between the two-way communication path forming means 303 extension telephone 1 and the extension telephone 1 ₁₃ based on the identification information given (in fact, call the handset microphone and the extension phone 1 extension station 1 ₁₃ road) to form a T _2.
Thus, The attendant extension phone 1 or heard story The attendant extension telephone 1 _13, also it is possible to know whether the reaction. Then, when returning to the one-way communication path again,
The GPC key 14b of the extension telephone 1 is operated again. Then, this is received by the two-way communication instruction detecting means 302 and instructs the two-way communication path forming means 303 to cancel. Thus is released to connect the speech path T _2, extension telephone 1 is restored to a state of being connected with the extension telephone group G1 by a one-way speech path T _1.

The telephone system having the above configuration is actually realized as a private branch exchange (PBX) shown in FIG. Extension station 1 _a to 1 _n are provided to be connected to the line circuits 2 _a to 2 _n is an electronic key telephone. Also the station line is provided to be connected to the office line trunk circuit 4 _a to 4 _m. Line circuit _2a
Between each other to 2 _n, the line circuit 2 _a to 2 _n and central office trunk circuit 4 _a
A communication path is formed by the communication path network 3 between 4 _m and 4 _m . Reference numeral 8 denotes a relay console, and a communication path network 3
Because it is connected, the speech path between the line circuit 2 _a to 2 _n or office line trunk circuit 4 _a to 4 _m is formed. The central control unit (CC) 6 controls each unit via the control data bus line 5 using the program and data of the storage device (MEM) 7 to transmit and receive necessary data. Further, a relay board (ATT) 8 is connected to the central control device 6, and data is transmitted and received.

The Figure 3 shows the configuration of the extension telephone 1 _a to 1 _n.
The extension telephones 1 _a to 1 _n are provided with a handset 11, a hook mechanism 12 on which the handset 11 is placed, a dial key 13, a function key 14, and an LED 15 corresponding to the function key 14. Function key 14a
Is a key (GPG key) for requesting a group paging service, and the function key 14b is a key (GPC key) for requesting a two-way call during simultaneous paging. Each of the extension telephones 1 _a to 1 _n is provided with a microphone capable of voice input while the loudspeaker and the handset 11 are left.

The extension telephone 1 private telephone exchanges of Figure 2 _a to 1 _n
Are the extension telephones A to M, P and Q, the groups Gr0 to Gr4 of the group paging service are set as shown in FIG. That is, the paging group registration memory table M1 as shown in FIG.
Are provided, and the identification information A to M of the extension telephones A to M belonging to each of the groups Gr0 to Gr4 is provided corresponding to the groups Gr0 to Gr4. Further, the storage device 7 is provided with memory tables M2 to M4 shown in FIG. 6 to FIG. The memory table M2 is a memory table in which the identification information of the extension telephone which is the confirmation member for confirming the correspondence of the other party is stored. At least a part of the contents of the memory table M1 is set in the memory table M2. The memory table M3 is a memory table in which the identification information of the paging source terminal is stored corresponding to the groups Gr0 to Gr4. The memory table M4 is a memory table in which the identification information of the extension telephones to be recognized with respect to the groups Gr0 to Gr4 is stored. In each of the memory tables M1 to M4, if each area is unregistered or clear, FFH is stored.

Further, the storage device 7 stores a program of a flowchart at the time of a simultaneous call shown in FIG. 9 and a program of a flowchart at the time of a two-way call request (confirmation operation) shown in FIG. Is executed by

For example, the operation when the extension telephone P in FIG. 4 is the paging source and calls all at once to the group Gr2 will be described. As shown in FIG. 9, an off-hook is performed on the extension telephone P (101), the GPG key 14a (or input of a predetermined number for requesting a group paging service) is operated (102), and the paging groove number is dialed. When the key 13 is operated (103), the memory table M1 is referenced to check whether the terminal is registered in the input paging group number (104). Here, if there is no registration, an overflow tone is returned from the tone generation circuit (not shown) to the extension telephone P.
5) In this example, since the group number is "2", it is registered, and the central controller 6 refers to the memory table M3 to check whether or not the paging group Gr2 is paging (106). If paging is in progress, a busy tone is returned from the tone generation circuit (not shown) to the extension telephone P (107), and if not paging, an idle state (Idle) and an idle state (not shown) storing the busy state of each extension telephone are stored. Referring to the state memory table, it is detected whether or not there is an empty terminal (108). If there is no empty terminal, the process proceeds to step 107. If there is an empty terminal, the identification information of the extension telephone P as the paging source is written in the memory table M3 corresponding to the group Gr2 (109), and the memory table M1 is written. The extension telephone P and the empty extension telephone of the group Gr2 are connected by a one-way communication path with reference to the extension / unoccupied state memory table of the extension telephone (110), and the one-way announcement from the extension telephone P is enabled. I do. Such a state is shown in FIG. 12 (a) as a one-way communication path indicated by a broken line.

Next, a case in which a bidirectional communication path for confirmation from the extension telephone P is formed will be described. As shown in FIG. 10, when the GPC key is operated on the paging source extension telephone P (201), it is checked by referring to the memory table M3 whether or not this is an input from the paging source (202). If the input is from the paging source, the paging group number is determined (203), and key input is taken (204). Next, the key input is analyzed (205), and when the confirmation member number (identification information) is inputted, it is detected whether or not the confirmation member has already been registered corresponding to the area of the memory table M4. (206). If it has already been registered, a two-way communication path is immediately formed between the extension telephone corresponding to the confirmation member number and the extension telephone P as the paging source (13). After the end of this step, or if the answer is NO in step 206, it is detected whether or not the confirmation member number relating to the input is registered with reference to the memory table M2 (207). The overflow tone is returned to P (208), and if there is a registration in the memory table M2, it is detected whether the extension telephone corresponding to the confirmation member number has entered the paging (209). Step 2 if not
Proceed to 08, but if it has entered, write the confirmation member number in the area of the relevant group in the memory table M4 (21
0), establish a communication path and enable two-way communication (211,2
12) Return to step 204. On the other hand, if the analysis result of the input capture is the GPC key 14b, it is detected whether or not the area of the corresponding group Gr2 is already registered with reference to the memory table M4 (2
14) If there is a registration, restore the one-way communication path (21
5), clear the corresponding area of memory table M4 (21
6) If there is no registration, continue paging. In this way, by operating the GPC key 14b, a confirmation operation (formation of a two-way communication path) and its release can be performed as shown in FIG. On the other hand, FIG. 12 (b) shows the GPC of the extension telephone P.
By operating the key 14b and inputting "4", a bidirectional communication with the extension telephone H and a one-way communication path with the other extension telephones I, J, K are formed. Next, by inputting "0", the confirmation member is changed from the extension telephone H to K (FIG. 12 (c)), and further, the group Gr2 is operated by operating the GPC key 14b.
(FIG. 12 (d)).

In the present embodiment, when forming a two-way communication path, a one-way communication path is formed with a member other than the confirmation member.
A hold sound or special music may be transmitted to a member other than the confirmation member by inputting a special number or the like or automatically.
In this way, a secret conversation can be held.

[Effects of the Invention] As described above, according to the present invention, it is possible to perform a two-way call with a desired extension of the other party by a predetermined operation from a one-way call by simultaneous paging, so that the state of message delivery can be determined by the paging source. It is convenient to know.

[Brief description of the drawings]

FIG. 1 is a block diagram of a telephone system according to an embodiment of the present invention, FIG. 2 is a block diagram of a private branch exchange to which the present invention is applied, FIG. 3 is a block diagram of an extension telephone, and FIG. 5 to 8 are diagrams showing a memory map of a memory table employed in one embodiment of the present invention, and FIGS. 9 and 10 are one embodiment of the present invention. Flowchart for explaining the operation of FIG.
The figure shows the key operation procedure of two-way communication path formation / cancellation,
FIG. 12 is a diagram showing a system for transitioning from a one-way communication path to a two-way communication path. 1,1 ₁₁ to 1 _n4 , 1 _a to 1 _n ... Extension telephones 2 _a to 2 _n ... Line circuit 3... Speech path network 4 _a to 4 _m ... Office line trunk circuit 5... Control data bus line 6 Central control device 7 Storage device 8 Relay stand 11 Handset 12 Hook mechanism 13 Dial key 14 Function key 15 LED 301 302: Two-way communication instruction detecting means 303: Two-way communication path forming means

Claims (2)

(57) [Claims] 1. A plurality of extension telephones having a loudspeaker device and a group of several extension telephones among the extension telephones in response to a request for simultaneous paging by a one-way call given from an extension terminal. A telephone system comprising: a loudspeaker for an extension telephone in an idle state of a group; and a general call means for performing a general call by forming a communication path for one-way communication with the extension terminal. A two-way call instruction detecting means for detecting whether or not an extension terminal making a one-way call to a general call has input data based on data specifying the other party's extension telephone; and a two-way call instruction detecting means. Detects that the corresponding data has been input, and responds to this data by placing both calls between the extension terminal performing the general call and the specified extension telephone. Telephone system call path is formed, characterized in that the input speech from the predetermined extension telephone and a two-way communication path forming means for generating from the public address system of the extension telephone according to the idle state of the group. 2. An apparatus according to claim 1, further comprising: storage means for storing at least one identification number of an extension telephone belonging to the general call group, wherein said two-way call instruction detecting means stores said instruction when a two-way call instruction is given. 2. The telephone system according to claim 1, wherein the two-way call instruction is valid only when the extension telephone corresponding to the identification number stored in the means is the other party.