JPH07147610A - Variable absent transfer system for exchange - Google Patents

Abstract

PURPOSE:To provide the variable absent transfer system for exchange with high service functionability by not executing transfer processing but performing connection processing in the case of call incoming from a transfer destination terminal registered for absent transfer. CONSTITUTION:When a caller B dials a number '4000' from an extension terminal 5000, a private branch exchange 1 refers to whether the extension terminal 4000 is in absent transfer registeration or not. When the private branch exchange 1 confirms that the extension terminal 4000 is in the absent transfer registeration on the extension terminal 5000, it is identified whether the number of the caller terminal 4000 is matched with the number of the extension terminal 5000 at the transfer destination or not. When the caller terminal is the transfer destination terminal, the private branch exchange 1 calls the extension terminal 4000 and when a caller A of the extension terminal 4000 performs off hook, a channel path is set between the extension terminal 5000 and the extension terminal 4000 so as connect these terminals.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to telephone exchanges, and more particularly to call forwarding services in telephone exchanges such as private branch exchanges and button telephone systems.

[0002]

2. Description of the Related Art For example, a private branch exchange has various service functions to improve the usability of the user.
Among them, the call forwarding service is a service that allows an extension telephone user to transfer a call to another extension or relay stand even if he / she is absent when he / she is away from his desk for a long time. This is a very useful function when you want to do it.
The absent-call transfer service includes fixed-absent transfer for fixing the transfer destination and variable-absent transfer for arbitrarily changing the transfer destination.

When the private branch exchange is registered for variable call forwarding, for example, all the calls arriving at this set and registered terminal are automatically transferred to the registered transfer destination terminal. At that time, the private branch exchange calls the transfer destination terminal if the transfer destination terminal is free or closed, and sends a busy tone to the caller terminal if the transfer destination terminal is closed.

[0004]

However, in such a conventional technique, when the transfer source terminal, which has been set, is called from the transfer destination terminal in which the absent transfer is registered, the transfer destination terminal is always in the calling state, and therefore, it is always necessary. It becomes closed (busy). Therefore, the caller listens to the busy tone, and cannot contact his / her own office from the place where he / she left, and in such a case, the use of the variable call forwarding function deteriorates the usability.

The present invention solves the above-mentioned drawbacks of the prior art, and in the case of an incoming call from a transfer destination terminal that has registered an absent transfer, the connection process is performed without performing the transfer process, so that the service functionality is high. It is an object of the present invention to provide a variable call forwarding system in an exchange.

[0006]

In order to solve the above-mentioned problems, the present invention, in the case of an incoming call to a terminal to which call forwarding is set and registered, determines whether the calling terminal is the transfer destination terminal. An identification function is provided, and when the calling terminal and the transfer destination terminal match, the connection processing is performed without performing the transfer processing.

[0007]

According to the present invention, when the exchange accommodating various terminals receives the selection signal sent from the calling terminal, whether or not the called terminal indicated by this selection signal is a terminal in call forwarding registration. If the called party terminal is a terminal for which call forwarding is registered, it is identified whether the forwarding destination of this called party terminal is the calling party terminal, and the forwarding destination of the called party terminal is If it is the calling terminal, the connection processing between the calling terminal and the called terminal is performed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a variable call forwarding system in an exchange according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows an embodiment in which the variable call forwarding system in an exchange according to the present invention is applied to a private branch exchange. The private branch exchange 1 is an exchange that executes exchange processing of a plurality of extension terminals accommodated by a call processing program,
It has various service functions including variable call forwarding.

FIG. 2 is a processing flow showing the registration procedure of variable absent transfer in this embodiment. Variable call forwarding
This is a service function that can be set and released at any time from the extension terminal. When an extension terminal with this setting receives a call, the call is automatically transferred to the transfer destination terminal.

The variable absence transfer setting registration is performed by the extension terminal that performs the absence transfer. That is, when performing variable call forwarding, the operator first goes off-hook the handset and dials a predetermined call forwarding registration special number in a calling state in which a dial tone is heard (S200).
02).

When the private branch exchange 1 (see FIG. 1) receives the call forwarding registration special number, it recognizes that there is a registration request for the variable call forwarding service, and executes the setting registration process. At this time, a voice message such as "Please input the transfer destination terminal number" may be sent to the operator by voice. The operator dials the call forwarding special number after dialing the call forwarding special number, and the call forwarding registration operation is performed (S204). In this case, the operator is notified by voice message that the call forwarding registration was registered. You may.

Upon receiving the transfer destination terminal number, the private branch exchange 1 stores both the extension number and the transfer destination terminal number for which the registration of the absent transfer is registered as data until the absent transfer is released, and the stored data is used for call processing. Used as reference data (S
206). This completes the setting registration of variable call forwarding in this embodiment (S208).

FIG. 3 is a processing flow when there is an incoming call at the extension terminal in which the variable call forwarding shown in FIG. 2 is registered. The operation of the variable call forwarding service in this embodiment will be described with reference to FIGS. 1 and 3. In addition, in FIG.
It is assumed that the extension terminal 4000 is set and registered for the absence transfer to the extension terminal 5000 according to the processing flow shown in FIG.

For example, when caller C dials 4000 from extension terminal 6000 accommodated in private branch exchange 1 (S300, S302), private branch exchange 1 connects to extension terminal 4000 from the received selection signal. Recognizing that this is a process, it is confirmed from the reference data whether or not this extension terminal is undergoing call forwarding registration (S304). When the private branch exchange 1 confirms that the extension terminal No. 4000 is being registered for call forwarding to the extension terminal No. 5000, it identifies whether the caller terminal No. 6000 matches the transfer destination extension terminal No. 5000 ( S306).

In this case, since the calling terminal is not the transfer destination terminal, the private branch exchange 1 calls the extension terminal 5000 (S308, S310), and when the called party B of the extension terminal 5000 goes off-hook, the extension terminal 6000. No. and the extension terminal 5000 are set up and a connection path is set.

When the caller B dials 4000 from the extension terminal 5000 (S300, S302),
Similarly to the above, the private branch exchange 1 refers to whether or not the extension terminal 4000 is registered for call forwarding (S304). In the private branch exchange 1, the extension terminal No. 4000 is the extension terminal 5
When it is confirmed that the call forwarding registration is being performed at No. 000, it is determined whether the caller terminal No. 4000 matches the transfer destination extension terminal No. 5000 (S306).

In this case, since the calling terminal is the transfer destination terminal, the private branch exchange 1 calls the extension terminal 4000 (S).
312, S310). When the called party A of the extension terminal 4000 goes off-hook, the private branch exchange 1 sets a call path path between the extension terminal 5000 and the extension terminal 4000 and performs a connection process for these.

As described above, according to this embodiment, when the call connection process is performed, it is confirmed whether the call forwarding is registered in the callee terminal, and whether the callee terminal is the caller terminal. Only by adding a process for identifying such a situation, it is possible to improve the serviceability in the unattended transfer without particularly changing the hardware.

Although the present invention is applied to a private branch exchange in this embodiment, the present invention is not particularly limited to a private branch exchange, and can also be applied to an exchange such as a button telephone system having a call forwarding service function. Is.

[0021]

As described above in detail, according to the present invention, it is possible to make a call from the terminal of the department to which the user is leaving to the terminal of his / her office while he / she is away (while registering the absence transfer). It is possible to make contact from the person leaving the office, etc., and expect improvement of serviceability in absence transfer.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an embodiment of a variable call forwarding system in an exchange according to the present invention.

2 is a flowchart of a registration procedure in the variable call forwarding system shown in FIG.

3 is a flowchart of call processing in the variable call forwarding system shown in FIG.

[Explanation of symbols]

 1 Private branch exchange 4000, 5000, 6000 Extension telephone

Claims (1)

[Claims] 1. In a variable call forwarding system in a switch accommodating various terminals, when the switch receives a selection signal sent from a calling terminal, the called terminal indicated by this selection signal is registered during call forwarding registration. It is determined whether or not it is a terminal, and if the called terminal is a terminal in call forwarding registration, it is identified whether or not the transfer destination of this called terminal is the calling terminal, A variable call forwarding system in an exchange characterized in that when a transfer destination of a called party terminal is the calling party terminal, a connection process between the calling party terminal and the called party terminal is performed.