JPH02220594A - Telephone system - Google Patents

Abstract

PURPOSE:To improve convenience by revising a transferred time in response to the time zone when no reply comes from a trunk line incoming call to a prescribed extension telephone set. CONSTITUTION:An allowable time data till the transfer at no reply for daytime and an allowable time data for night are set to a time data storage means 101. When the night mode is selected by an attendant board 11 and a transfer control means 103 detects an incoming call from a trunk line 3, a timer 102 is referenced to check whether or not the time zone is XA or XB and the timer value corresponding to the relevant time zone is used to call the telephone set 1. Even if the call is made by the time corresponding to the time value, if no reply comes from an extension telephone set 1, a trunk line incoming call is transferred to an UNA 12. Thus, the time for transmission is revised in response to the time zone to offer the convenience.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to telephone systems such as private branch exchanges and key telephone devices.

(Prior Art) A conventional private branch exchange, as shown in FIG.
, extension telephone 1, relay console 11, and Universal Night Answer (UNA) 12, which is a specific extension terminal, are connected and the night mode is set from relay console 11, incoming calls from the central office line are received as shown below. It was done.

As shown in FIG. 5, when there is an incoming call from the central office line 3 to the trunk 4, the control unit 20 detects this (FIG. 6a) and detects whether the night mode is set from the relay console 11. 6b), If in night mode, read the RNA timer value (allowed time until transfer in case of no response) from memory (Fig. 6c), Here, the above R is sent to trunk 4.
Set the timer based on the NA timer value (Fig. 6 d),
Predetermined extension phone number! An incoming call is generated to 1aTA (Fig. 6e).

As long as there is no response from the extension telephone TA to this call, the 6th
Figure f), when a timeout occurs, it is necessary to detect whether the relay console 11 is in night mode (Figure 6 g), and if it is in night mode, it is necessary to cause the UNA 12 to receive a call (Figure 6 h).
. This tJNA 12 is a terminal that only generates a ringing tone when a call is received, does not have a response function, and widely announces the arrival of a call.

Then, when the UNA 12 hears the ringing tone and responds using the extension telephone TB (FIG. 5), the control unit 20
detects this (FIG. 6i) and forms a communication path between the trunk 4 and the extension telephone BITB (FIG. 6j). In other words, a distributed response method is used. Furthermore, if the relay console 11 is not in the night mode in steps b and 0, an incoming call is generated to the relay console 11 (Fig. 6k).However, in such a private branch exchange, there is only one type of RNA timer value. If the operator of the relay stand 11 is absent when returning home at night and the night mode is set, the same operation as during the daytime will occur even though it is nighttime. That is, as explained in FIG. 5, since the call is made to the extension telephone TA for a while and then transferred to the UNA 12,
There is a high probability that there is no one near the extension telephone TA, and the office line 3
This has caused an inconvenient problem as the waiting time for the other party making the call via the Internet becomes long.

(Problems to be Solved by the Invention) As described above, according to the conventional telephone system, there is only one type of RNA timer value, and regardless of whether it is nighttime, calls are made to a predetermined extension telephone with a lower probability that there is a person nearby than during the daytime. The problem is that the call is transferred to UNA after a while, resulting in a long waiting time for the other party. It is conceivable to shorten the RNA timer value, but this causes the problem that the call is immediately transferred to UNA during the daytime, making it difficult to respond with a predetermined extension telephone.

The present invention was developed in view of the problems of the conventional telephone system, and its purpose is to reduce the time it takes to transfer a call to a predetermined extension telephone when there is no response to an incoming call to a central office line.
To provide a telephone system which can be conveniently used by both a side using an extension telephone and a side making a call to a central office line by changing it according to the time zone.

[Structure of the Invention] (Means for Solving the Problem) In the present invention, a central office line, a plurality of extension terminals, and a relay stand are connected, and when in a first mode, the relay stand receives an incoming call from the central office line. a specific extension terminal for causing an incoming call from the central office line to occur at a predetermined extension terminal when in a second mode, and causing an incoming call from the central office line to occur when the telephone system generates only a ring tone; a timer; a time data storage means in which permissible time data until transfer is performed in the case of no response is set for each time period; Permissible time data within the means is obtained by referring to the timer, and if there is no response even if the call is made to the predetermined extension terminal according to the permissible time data, the specific extension terminal receives a call from the central office line. The telephone system is equipped with a transfer control means for transferring the information.

(Operation) According to the above configuration, allowable time data for each time period is set in the time data storage means, and the transfer control means refers to the timer to obtain allowable time data corresponding to the time period and performs transfer. This means that the transfer time is appropriate depending on the time zone, that is, the extension telephone operator is given ample time to respond, and the caller using the central telephone line is given waiting time.

(Example) Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the present invention. In the figure, 100 indicates a private branch exchange, a central office line 3, an extension telephone 1,
Connected to the relay stand 11 is a UNA 12, which is a specific extension terminal that receives a call on a predetermined extension telephone in night mode and becomes a forwarding destination when there is no response and generates only a ringing tone. The private branch exchange 1ioo includes a time data storage means 101,
A timer 102 and transfer control means 103 are provided.

The time data storage means 101 is set with daytime allowable time data (RNA timer value A) until transfer is performed when there is no response, and nighttime allowable time data (RNA timer value B). When the transfer control means 103 detects an incoming call from the central office line 3, it refers to the timer 102 and determines that the time zone is XA.
(daytime) or X8 <nighttime) and use the timer value corresponding to the relevant time zone. of course,
The prerequisite for this operation is that the relay console 11 sets the night mode and the night mode flag is set.

Therefore, in the night mode, the transfer control means 103 first receives and calls the extension telephone 1 that should receive the call (■). If there is no response at the extension telephone 1 even after the number of calls corresponding to the timer value obtained above has been made, the incoming call from the central office line is transferred to the UNA 12 and the call is made (■).

FIG. 2 shows a more specific configuration of the private branch exchange 100 explained in FIG. 1. In this figure, the same components as in FIG. 1 are given the same reference numerals. Extension telephones 11 to 1o, relay stand 11 are line circuit (LC) 21
~2o, 1, and UNA12 is connected to LJNA line circuit (UL) 28+2. Office line 31-3I
Il is connected to trunk circuits (TRK) 41 to 4ffl. 5 indicates a switch circuit (SW), and line circuit 2. ~2n, 1. UNA line circuit 2n+2'
The trunk paths 41-4- are connected. The control unit 2o includes a central processing unit (CC) 7, a memory (MEM) 8 storing programs used by the central processing unit 7, and a memory (MEM) 9 corresponding to the time data storage means 101.
is provided. The central processing unit 7 functions as a transfer control means 103 based on the program in the memory 8, and
It includes a timer 102. The central processing unit 7 controls the switch circuit 5 via the data bus line 6, and controls the line circuits 21 to 2 . +,, line circuit 2 for UNA,
Trunk circuits 41 to 41Il and n+2 transmit and receive control data.

In the private branch exchange configured in this way, the central processing unit @7 operates based on a program in the flowchart in the memory 8 as shown in FIG. This is the third
This will be explained with reference to FIG.

First, when an incoming call is received from the central office line 3 to the trunk 4, the central processing unit 7 detects this (2a) and detects from the relay stand 11 whether the night mode is set (2b). The night mode is set by setting a flag in the memory 8 using control data sent from the relay console 11. Next, the central processing unit 7 detects whether it is nighttime based on the timer 2C>, and if it is nighttime, reads out the corresponding nighttime RNA timer value B from the memory 92d).
If it is daytime, the corresponding daytime RNA timer value A is successively read out from the memory 9 (2e), and the read timer value is set in the trunk (2f). Next, extension telephone 1 for night reception
(21), and as long as there is no response to the call to this extension telephone 1, it is detected whether the timer has timed out (2q), and when the timeout occurs, the relay console 11 switches to night mode. If the mode is night mode, the UNA 12 receives a call (21). Here, extension telephone 1 (T,)
It is detected whether or not a response has been made at an extension telephone set 1 other than the telephone number (2j), and when a response is detected, a switch circuit 5 connects the trunk 4 to the extension telephone set 1 that responded (T in FIG. 4). is controlled and formed to enable communication (2k).

Also, step 2b.

If it is detected that the call is not in night mode at 2h, the relay console 118 receives the call (2m).

Note that in the above, it is preferable that the timer value A is set larger than the timer value B. That is, in the daytime, there are more people near the extension telephone for night reception, whereas at night, even if there is a person on any of the extension telephones 11 to 1o, there are people near the extension telephone for night reception. This is because it is thought that there are often no people in the area. Of course, the magnitude of the timer value may be reversed. Also, the time zone is 3 instead of 2.
The timer value may be set more precisely than the band.

Further, in step 2j, a distributed response method is adopted, and the extension telephones 11 to 1. It is preferable to be able to answer from any telephone (excluding those for night reception), but it may be set so that responses cannot be made from a specific extension telephone. These operational data are stored in the memory 8 in advance.

``Effects of the Invention'' As explained above, according to the present invention, permissible time data for each time period is set in the time data storage means, and the transfer control means refers to the timer to determine the permissible time data corresponding to the time period. By obtaining time data and performing the transfer, the transfer time can be set appropriately depending on the time zone, that is, the time the caller on the central line must wait for a response can be shortened, and the extension side can respond from a predetermined terminal. It's convenient.

[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 system according to an embodiment of the present invention, and FIG.
Figure 4 is a flowchart for explaining the operation of an embodiment of the present invention, Figure 4 is a diagram for explaining the operation of an embodiment of the invention, and Figure 5 is a diagram for explaining the operation of a conventional private branch exchange. , and FIG. 6 are flowcharts for explaining the operation of a conventional private branch exchange. 1... Extension telephone 21-21, 1... Line circuit 3... Office line 4... Trunk 5.
...Switch circuit 7...Central processing unit 8.9
...Memory 11...Relay stand 12...t
JNA 100...Private branch exchange 101
...Time data storage means 102...Timer 10
3...Transfer control means agent Patent attorney Book 1) Takashi Figure 1 Figure 2 Figure Figure Figure Figure Figure Figure

Claims (1)

[Scope of Claims] A central office line, a plurality of extension terminals, and a relay stand are connected, and in a first mode, the relay stand receives an incoming call from the central office line, and in a second mode, a predetermined extension terminal is connected to the relay stand. In a telephone system that causes a terminal to receive a call from the central office line, the telephone system includes a specific extension terminal for causing a terminal to receive a call from the central office line when only a ring tone is generated, a timer, and a system for detecting no answer for each time period. a time data storage means in which permissible time data until transfer is set; and when a call is received from the central office line during the second mode, the permissible time data in the time data storage means is referenced to the timer; and transfer control means for transferring an incoming call to the specific extension terminal when there is no response even if the call to the predetermined extension terminal is made in accordance with the allowable time data. A telephone system characterized by: