JPH05336246A - Trunk line answer system - Google Patents

Abstract

PURPOSE:To improve the service properties to the incoming calls by giving an incoming call to a delayed extension if no answer is received for the delay time or longer to the incoming of a central office trunk where a flag shows the wright of the delayed transfer of a central office answer state storage part. CONSTITUTION:The information is previously registered to a central office trunk 1 to prescribe a transfer operation in a no-answer state. When the trunk 1 receives an incoming call from an exchange station, the terminals T1-T3 are called. At the same time, a control part 3 identifies the delayed transfer right-wrong flag corresponding to a central office trunk number (a) that received an incoming call from a central office answer state storage part 5 of a memory 4. If the flag shows the right, the part 3 controls the delayed transfer. Meanwhile the part 3 controls a network 2 so as to transfer the incoming call of the trunk 1 to a terminal T4 of a delayed transfer destination number (d) if no answer is received to the central office incoming for the delayed time (c) or longer. Then the part 3 secures the talking between an originating subscriber and the terminal T4. In such a constitution, the service properties can be improved to the incoming calls.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a station line response system in a private branch exchange having a station line receiving function. In recent years, as a basic service of a private branch exchange (called PBX), a transfer service is provided when an incoming call to each telephone terminal is not answered for a certain period of time. On the other hand, the PBX is provided with an incoming call function that allows a plurality of extension telephones to be called in advance for an incoming call to a station line connected to a switching center of a public network. It was difficult to provide a transfer service when any extension telephone did not answer.

[0002]

2. Description of the Related Art FIG. 4 is an explanatory view of a conventional example. FIG. 4 a. Shows the response delay transfer service by a conventional exchange diagrammatically and is explained below.

A. When the user of the terminal B receives an incoming call to the terminal itself, the terminal B requests that the call is transferred to the transfer destination C only when the terminal B does not answer the call for a predetermined time or longer, and the registration information corresponding to the terminal B is registered. 40 is registered in the exchange (PBX). In this case, for example, when the terminal B calls the terminal B, if the user of the terminal B answers, the call is not transferred, but if the user does not answer the call for a predetermined time or longer, the response delay transfer service is transferred to the terminal C.

FIG. 4b. Shows a connection form at the time of calling when the PBX accommodates a central office line connecting to a public network exchange. That is, the office line from the exchange is the office line trunk 4
1 is connected to the PBX network (indicated by NW) 42, and an incoming call from the exchange to the central line is received by terminals A to C of a plurality of extensions (ring tone of each telephone or blinking of a lamp). Each terminal is equipped with a station line button so that any one of the terminals can respond (actuated like a key telephone). There are other call receiving methods for the station line, one for receiving one station line and one for the extension, and a method for receiving the call to the operator of the exchange. However, the call to the operator requires a representative number because it requires human intervention. Applies to the station line used.

[0005]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention b. As shown in, when using the station line incoming function of calling a plurality of extension terminals for PBX station line incoming and making an incoming call connection to any one, one of the plurality of terminals receiving the station line incoming is used. One may respond. However, even if a call is made to a plurality of incoming terminals for a long time due to an incoming call from a station line, none of them responds, which causes trouble to the caller and deteriorates the serviceability.

On the other hand, in FIG. Since the response delay transfer service as shown in Fig. 4 is basically based on the principle that the transfer destination is registered in each terminal, in the method of receiving a plurality of terminals as shown in FIG. The conventional response delay transfer service could not be applied.

The present invention realizes a response delay transfer service regardless of any station line receiving mode including a mode for calling one extension terminal for a station line incoming and a mode for calling a plurality of extension terminals. It is an object of the present invention to provide a station line response method capable of performing the above.

[0008]

FIG. 1 is a basic block diagram of the present invention. In FIG. 1, 1 to 4 are private branch exchanges (PBX)
1 is a station line trunk, 2 is a network (NW) having a switching function, 3 is a control unit, 4 is a memory, 5 is a station line response state storage unit, and T1 to T4.
Is an extension terminal.

The station line response state storage unit 5 is composed of a to d, where a is a station line trunk number, b is a delay transfer enable / disable flag,
c is the delay time, and d is the delayed transfer destination number. According to the present invention, management information that defines a transfer operation at the time of an incoming call to a station line when no answer is received is registered in each station line trunk.
If there is no response from any extension terminal within the delay time specified when an incoming call is made to the station line, the incoming call is made to the registered transfer destination.

[0010]

In the station line response state storage section 5 of the memory 4, information for carrying out a transfer operation to each station line trunk 1 when there is no response is registered in advance. When there is an incoming call from the exchange to the office line trunk 1, a call is made in advance at a plurality of terminals that receive the office line call. In the figure, T1 to T3 are called. At this time, the control unit 3 identifies the delay transfer enable / disable flag b corresponding to the station line trunk number a of the station line trunk 1 that received the call from the station line response state storage unit 5 in the memory 4, and sets "1". Then, control of delay transfer is started for this station line trunk 1. In this case, the control unit 3 determines whether the ringing time due to an incoming call from the station line has reached the delay time c of the station line response state storage unit 5, and if there is no response until the delay time c is reached, the delay transfer destination number d ( This number is the terminal T
4) is taken out and the network 2 is controlled so that the incoming call of the office line trunk 1 is received at the transfer destination terminal T4.
In this way, when the transfer destination terminal T4 is called and responds, the call with the caller becomes possible.

[0011]

FIG. 2 is a block diagram of an embodiment. In FIG. 2, 1 to 5 correspond to respective parts having the same reference numerals in FIG.
1, 1-2 are office line trunks, 2 is a network (N
W), 3 are control units (indicated by CC), 4 is a memory, and 5 is a station line response state storage unit provided in the memory 4. Further, 6 and 7 are extension terminals called when an incoming call is made to the office line trunk 1-1, 8 is a terminal (number "200") of a delay transfer destination to the office line trunk 1-1, and 9 is a public network. It is an exchange.

Items a to d of data registered in the station line response state storage section 5 are the same as those in FIG. 1 above. FIG. 2 shows a concrete example of each data, and the trunk number "1111" (station In the case of the line trunk 1-1), the transfer enable / disable flag is "1", which indicates that delay transfer is executed, and the delay time is "30".
Seconds ”and the delayed transfer destination number is“ 200 ”(corresponding to the terminal 8). Further, in the case of the trunk number“ 2222 ”(station line trunk 1-2), since the transfer enable / disable flag is“ 0 ”, the delayed transfer is performed. In this case, the central line trunk 1-2 may receive an incoming call at a specific terminal, for example.

FIG. 3 is a processing flow of the embodiment. The processing flow of the embodiment will be described below with reference to FIG.
An incoming call from the exchange 9 occurs on the central line trunk 1-1 (S1 in FIG. 3). As a result, a plurality of terminals 6 and 7 are called by the incoming call of the office line trunk 1-1. On the other hand, the control unit 3 searches the station line response state storage unit 5 of the memory 4 for the delay transfer enable / disable flag b of the incoming line trunk of the number "1111" (S2).

If it is searched, is the delay transfer enable / disable flag registered for this station line trunk (whether it is "1" or not)?
Is determined (at step S3). In this example, since the flag is "1", it is monitored whether or not the delay time c (30 seconds in this example) stored for this trunk number is not responded (S4). In the above step S3, when the flag is not registered (in the case of "0"), the incoming call state is continued (at step S5) and the process ends.

The delay time c is monitored to determine whether the delay time c has passed (at step S6). When the delay time c has passed, it is discriminated whether the incoming call is answered by the extension terminal 6 or 7 (at step S7). If it is answered, it shifts to the call state (at step S8). If it is not answered, the control unit 3 executes the delayed transfer. The terminal of the number registered in the delay transfer destination number d of the line response state storage unit 5 (number "20
The transfer is controlled to the terminal 8) of 0 "(at step S9).

Each data in the station line response state storage section 5 of the memory 4 is registered from a maintenance console (not shown) of the PBX or a terminal.

[0017]

According to the present invention, even in the case of an office line trunk whose destination is an unspecified large number, it is possible to register and execute delay transfer to a specific terminal, so that the serviceability to an incoming call is improved. be able to.

[Brief description of drawings]

FIG. 1 is a basic configuration diagram of the present invention.

FIG. 2 is a configuration diagram of an embodiment.

FIG. 3 is a processing flowchart of the embodiment.

FIG. 4 is an explanatory diagram of a conventional example.

[Explanation of symbols]

 1 station line trunk 2 network (NW) 3 control section 4 memory 5 station line response status storage section a station line trunk number b delayed transfer enable / disable flag c delay time d delayed transfer destination number

Claims (1)

[Claims] 1. A private branch exchange having a station line receiving function, a station line trunk number, a delay destination extension number corresponding to the station line trunk, a flag indicating whether or not delay transfer is possible, and a delay time of the delay transfer. If a response to the incoming call to the station line trunk in which the flag indicating the delay transfer availability of the station line response state storage unit is transferable is not responded for the delay time or more, the delay destination is stored. A station line response system characterized in that the incoming call is received by an extension.