JPH0250557A - Telephone system - Google Patents

Abstract

PURPOSE:To make an automatic callback function by the condition of an actual telephone set and to precisely perform the processing even when plural telephone number are assigned to one telephone set by detecting whether or not respective telephone sets are in the callable condition and executing the automatic callback processing for telephone number data concerning a telephone set in a callable condition. CONSTITUTION:The title system is provided with a setting information storing means 102 to store the setting information of an automatic callback for telephone number data and a telephone number data storing means 101 to store telephone number data assigned for a telephone set. To a central control unit, a memory and an input/output device for setting data are connected, and operated as an automatic callback processing means 100. Thus, it is detected whether or not respective telephone sets can call, an automatic callback processing is executed for telephone number data concerning the telephone set in the callable condition, the condition of the telephone set called by the automatic callback is recognized and the automatic callback can be precisely carried out.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a telephone device such as a private branch exchange, and more particularly to a telephone device having a so-called automatic call return function.

(Prior Art) A conventional private branch exchange is equipped with an automatic call return function, which is executed as follows.

The phone number dialed from the extension terminal of the private branch exchange is a1a2a
3 The phone number is b1b2 from phone A which is said to be a4.
When a call operation is performed to telephone @B designated as b3b4, if telephone B is busy, a busy tone signal is sent to telephone A. Then, the caller operates a predetermined key to activate the automatic call return function. As a result, the central controller of the private branch exchange changes the telephone number b1b2b3b4 to the telephone number a1.
The fact that automatic callback has been set from a2a3a4 is memorized by, for example, setting a flag. - On the other hand, the central control unit constantly scans the usage status of the phone with phone number b1b2b3b4, and when it detects that the phone has been restored and can now be called, the party that has set up automatic call return based on the above flag. phone number a1 a2 a
3 Detect the usage status of A4's telephone. As a result of detection,
If callable, phone number b1b2b3b4
Make a call to phone number a1 a2 a3 a
4, and when each person answers, the phones with phone numbers a1, a2, a3, and a4 and the phone number b1b2
A communication path is established with the telephone set b3b4 to establish a communication state. In addition, if the telephone number a1, a2, a3, a4 on the side where automatic call return was set is in a state where it is not possible to make a call, wait until it is in a state where it can be called, and then change the telephone number a1, a2, a3, a4 and b1b2b3b
When both of the four telephones are in a callable state, a call is made to each of them.

As described above, in conventional private branch exchanges, it is assumed that one telephone number is assigned to one telephone, and the telephone number data is used to detect whether the telephone is in a callable state or not, and to set automatic calling. However, in recent years, with the diversification of services, cases have emerged in which multiple telephone numbers are assigned to a single telephone. In such a case, if the automatic call-back process described above is performed, the following problems will occur. Phone number b1b2b3b to phone B above
4 and b5b6b7b8 are assigned. First, if telephone B is called with telephone number @b1b2b3b4 and becomes busy, and telephone A calls with telephone number b5b6b7b8, if telephone number b5b6b7b8 has not been assigned to another telephone, b5b6
Since b7b8 is unavailable, a busy tone signal is transmitted to telephone A. Therefore, set up automatic call return on phone A.
The automatic callback flag for 6b7b8 is set. Since the automatic call-back function is checked when the telephone number is empty, the telephone number b5b6b7b8 is treated as callable, which does not match whether the actual telephone is callable or not. Problems have arisen in that either the automatic call return function does not work or telephone calls cannot be made even if telephone A responds to the automatic call return function.

(Problems to be Solved by the Invention) As described above, according to the conventional telephone device, even when multiple telephone numbers are assigned to one telephone, it is difficult to determine whether or not it is possible to make a call using only the respective telephone number data. In order to perform automatic call-back processing and detection, there may be a discrepancy between whether the actual telephone is in a callable state or not and the data related to management.
There has been a problem in that the automatic call return function does not work or the call cannot be made even if the automatic call return function is answered by the telephone set on the setting side.

The present invention was made to solve these problems with conventional telephone devices, and its purpose is to accurately perform automatic call return processing even when multiple telephone numbers are assigned to one telephone. The purpose of the present invention is to provide a telephone device that can be obtained.

[Structure of the Invention] (Means for Solving the Problems) In the present invention, when a plurality of telephones are provided and an automatic call return setting is made from the telephone that made a call to the busy telephone, Automatic call return setting information is stored for each telephone number data in a telephone device that performs automatic call back processing that calls the telephone concerned and the telephone that made the call when the telephone recovers from a busy state and becomes able to make a call. A setting information storage means to be stored, a telephone number data storage means to store telephone number data assigned to each telephone, and management and management of setting information in the setting information storage means by data given from each telephone. It is detected whether each telephone is in a callable state, and for each telephone in a callable state, the telephone number data in the setting information storage means is determined based on the data in the telephone number data storage means and the setting information storage means. The telephone device is equipped with automatic call-back processing means for performing automatic call-back processing.

(Function) According to the above configuration, it is detected whether each telephone is in a callable state, and automatic call-back processing is performed for each telephone number data for each telephone in a callable state, so that the state of the telephone is grasped. Even if a plurality of telephone numbers are assigned to one telephone set, automatic call return will function depending on the actual state of the telephone set, and accurate processing will be performed.

(Example) Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 2 is a block diagram of a private branch exchange according to an embodiment of the present invention. In the figure, reference numeral 1 denotes a switching circuit which forms a voice communication path between extension circuits 51 to 5o or between extension circuits 51 to 5o and office line circuit 7 under the control of central controller 2. Telephones 61-6n are connected to extension circuits 5-5, respectively. The central control device 2 has a configuration of, for example, a microcomputer, and controls each part based on its own program. In other words, the central control device 2
~5o, it receives various control data etc. from telephones 61~6o, and conversely gives necessary data, signals, etc.
It receives incoming call information etc. from the office line circuit 7 connected to the office line 8, gives dial information, and transmits a dial signal. Further, a storage device 3 and a data setting input/output device 4 are connected to the central control I device 2. The data setting input/output device 4 is a device for inputting various operational data settings and outputting current operational data through key operations. The storage device 3 has an input/output device 4 for data setting.
In addition to the data input from the central controller 2, various data necessary for the operation of the central controller 2 are stored. Among these, what is necessary for the operation of this embodiment is a key data table 300 of various data assigned to each key of each telephone 6 as shown in FIG. 3, and automatic call return setting information ( The setting information storage means 102 (FIG. 1) stores a flag indicating whether or not the setting has been made and the telephone number data of the telephone on which the setting was made for each telephone number data, and the setting information storage means 102 (Fig. There is a telephone number data storage means 101 (FIG. 1) in which telephone number data is stored. The data in the telephone number data storage means 101 and the data in the key data table 300 are set by input from the data setting input/output device 4. In addition, key data table 3
At 00, data is registered in the standard telephone only for the key rOJ. Further, a key for setting automatic callback is provided on the telephone 6 as a function key. The central control unit 2 of the private branch exchange having such a configuration operates as the automatic call return processing means ioo (FIG. 1) based on the flowcharts shown in FIGS. 4 and 5 stored in its own main memory.

First, for example, from phone B with phone number b11b12b13b14 to phone A with phone number a11a12a13.
When a call is made to a14, if all telephones with this telephone number are busy, a busy tone signal is sent back to telephone B. If the operator of telephone B tries to set up automatic call return and operates the automatic call return function key (50
0), the central control device 2 detects that automatic callback is set based on the key data table 300, and stores the telephone number data a11a12a13a in the setting information storage means 102.
Sets the flag "1" to indicate that automatic call back is set in area 14, and also sends the setting party's phone number b1.
1b12b13b14 is stored (510). This is how the automatic call return setting is performed.

Next, the operation when performing automatic call back will be explained with reference to FIG. The central control unit 2 scans the usage status of extension lines and office lines based on a program shown in a flowchart (not shown), and detects whether each telephone number is in use. When it is detected through the above operation that the telephone number a11a12a13a14 assigned to telephone A has been restored (600), it is detected based on the setting information storage means 102 whether automatic call return is set for the telephone number a11a12a13a14. (605).

Here, when it is detected that the setting has been made, the phone number b11b12b13b14 of the side that has been set and the phone number a11a12a13a14 of the side to which automatic callback is performed are retrieved, and the phone to which the above phone number is assigned based on the phone number data storage means 101 is set. The state of the call is detected, and if it is in a callable state, the automatic call return function is activated (610). That is, a call is made to both compatible telephones, and a call is made possible when a response is made. If such an automatic call return is performed, or if at least one of the above-mentioned compatible telephones is not in a callable state, or step 60
If it is detected in step 5 that automatic callback is not set for the telephone number a11a12a13a14, the telephone that accommodates the recovered telephone number based on the telephone number data storage means 101 (A in the above example) 620), and detects whether there is another telephone number (625). If there is another telephone number, it is detected based on the setting information storage means 102 whether or not the automatic call-back function is set for the other telephone number (
635). If set here, step 61
0 (640), and if it is not set, or if the process of step 640 is completed, check whether there is any other phone number accommodated in the phone. Detected based on the data storage means 101 (645), the automatic call back setting is checked for all telephone numbers, and if it is set and the automatic call back function has not been activated, the process returns to step 620, and if all have been completed or If it branches to "none" in step 625, the program ends (650).

In this way, each phone number is scanned to see if it has been restored, and if the phone number is restored, it is checked whether the phone number is set for automatic callback or not, as well as other phone number orders assigned to the phone. , it detects whether automatic callback is set and performs automatic callback when possible, so automatic callback is performed accurately even when the telephone and telephone number are combined m:n. It is possible,
It is possible to improve services for users.

[Effects of the Invention] As explained above, according to the present invention, it is detected whether each telephone is callable or not, and automatic call-back processing is performed for each telephone number data for telephones that are in a callable state. , the state of the telephone being called by the automatic callback is known, and the automatic callback is performed accurately.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2 is a block diagram of a private branch exchange according to an embodiment of the invention, Fig. 3 is a diagram showing a memory map of a key data table, Figs. 5
The figure is a flowchart for explaining the operation of an embodiment of the present invention. 1... Exchange circuit 2... Central control device 3... Storage device 4... Data setting input/output device 51-5o... Extension circuit 61-6o... Telephone 7
... Office line circuit 8 ... Office line 100 ... Automatic call return processing means 101 ... Telephone number data storage means 102 ... Setting information storage means Agent Patent attorney Nori Chika Ken Shu Kanshu Sanno Dai 2 figure

Claims (1)

[Claims] When a plurality of telephones are provided and an automatic call return setting is made from the telephone that made a call to the busy telephone, the busy telephone recovers from the busy state and becomes able to make a call. In a telephone device that performs an automatic call-back process that calls the telephone and the telephone that made the call when A telephone number data storage means in which allocated telephone number data is stored, and data provided from each telephone set to manage the setting information in the setting information storage means and detect whether each telephone set is in a callable state. automatic call-back processing means for performing the automatic call-back processing for each telephone number data in the setting information storage means based on the data in the telephone number data storage means and the setting information storage means for telephones that are in a callable state; A telephone device characterized by comprising: