JPH08237373A - Incoming connection control method at the time of changing extension telephone number - Google Patents

Abstract

PURPOSE: To make a given transmission and connection to which one of the subscriber of the callee or the subscriber of the old telephone number when a caller dials the old telephone number of the callee. CONSTITUTION: When an exchange 1 judges that the telephone number dialed by a subscriber (c) is the old one, a guidance is sent to him from a voice mail device 2 so as to allow him to choice which one of a subscriber (a) of the callee who has a new telephone number now or a new subscriber (b) of the old telephone number. In response to this, when the subscriber (c) transmits the choices number, an incoming call to the subscriber (a) comes to which one of the subscriber (b) or (a) according to the choice.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, when the extension telephone number of a called extension subscriber has been changed, dials the old extension telephone number from the calling extension subscriber to call the called extension subscriber. Based on the guidance from the voice mail device, the incoming call from the calling extension subscriber to the called extension subscriber is the new extension subscriber of the old extension telephone number or the new extension subscriber. The present invention relates to an incoming call connection control method when an extension telephone number is changed so that a called extension subscriber of the extension telephone number can receive the call.

[0002]

2. Description of the Related Art Private branch exchanges (hereinafter simply referred to as exchanges)
In, the extension telephone number (hereinafter, simply referred to as a telephone number) of the extension subscriber (hereinafter, simply referred to as a subscriber) may be frequently changed due to personnel change of the accommodation extension subscriber, etc. As a problem in the case where the telephone number is changed frequently, the old telephone number is changed when the calling subscriber calls the called subscriber whose telephone number is changed without knowing the fact of the change. The case where the calling subscriber dials is mentioned. As a matter of course,
Since the old telephone number is already unused or in use by the new subscriber,
Until then, the incoming call from the calling subscriber cannot be reached by the desired called subscriber. By the way, as a method for coping with such a situation, a number change notification transfer method described in, for example, Japanese Patent Laid-Open No. 62-217759 has been known so far. If this is the case,
The exchange has a table of new and old telephone numbers, and if the called telephone number exists in the old telephone number table, the call to the called subscriber is once transferred and connected to the number guidance device. In addition, after the numbering announcement, which is commonly prepared in advance, is made to the calling subscriber, the call is automatically transferred to the called subscriber by the new telephone number. Further, according to Japanese Patent Laid-Open No. 55-136763, after the guidance of the new telephone number of the called subscriber to the calling subscriber from the Toki (announce) device, the call to the called subscriber is updated. The telephone number is automatically transferred to the called party.

Incidentally, the connection system for the numbered telephone set disclosed in Japanese Patent Laid-Open No. 55-136763 mentioned above will be described in detail with reference to FIG.
That is, the calling subscriber c calls the called subscriber a from the telephone C assuming that the extension telephone of the called subscriber a (simply referred to as a telephone) has already been changed from the telephone A to the telephone B. When the telephone number corresponding to the telephone A is dialed, the telephone number is called under the exchange control by the exchange 1 before the call to the called subscriber a is connected to the telephone A via the route I. It is checked by the number change data inside the exchange 1. If the telephone number of the called subscriber a is already changed to the telephone number corresponding to the telephone set B by this check, the call is once transferred to the announcement device 2 via the route II, and the announcement device 2 is also transferred.
To telephone C from called party a via route III.
After the change guidance to the effect that the telephone number has been changed to the new telephone number, the call is automatically transferred and connected to the telephone set B via the route IV by the new telephone number.

[0004]

However, as can be seen from the above, in the case of the countermeasures taken so far when changing the telephone number, the connection to the called subscriber is changed by the new telephone number after the guidance is completed. As a result, despite the fact that a telephone corresponding to the old telephone number actually exists, it is impossible to change the connection to the old telephone with the old telephone number as it is. The problem in this case is not that it is simply impossible to change the connection to the old phone, but the problem is that the old phone does not exist even if it actually exists. It means that the number had to be a free telephone number. Under the condition that the old phone number must be a free phone number, in addition to the normal connection process, a free phone number matching process and a free phone number registration storage area are required in addition to the normal connection process. For this reason, restrictions were naturally imposed on the extremely limited extension telephone number plan and the storage area. Further, according to the conventional technique, when the subscriber of the telephone is changed, that is, the subscriber of the telephone A is changed from the subscriber a to the subscriber b, the telephone is called to call the subscriber a. The calling subscriber who dialed the telephone number corresponding to A said, "At present, the telephone set A is used by the subscriber b. , Etc., there was no service to notify the change of telephone subscribers. Therefore, when the telephone number corresponding to the telephone set A is dialed, any one of the old subscriber a and the new subscriber b for the telephone set A is made to be selected by the calling subscriber by the PB signal. No service has been provided to forward the call to the selected subscriber. Under such circumstances, let alone PB
The above service cannot be provided at all for a DP telephone that cannot send a signal, or for a facsimile terminal with an automatic transmission function that cannot understand the operation even if a selection operation is prompted by voice from an exchange. It was the situation that was considered.

A first object of the present invention is to make a call when the telephone number of the called subscriber is changed to a new telephone number and the calling subscriber dials the old telephone number of the called subscriber. Incoming call when the extension telephone number is changed, in which the called party with the new telephone number or the subscriber with the old telephone number is selected by the subscriber's volition and the call can be transferred to the selected subscriber. There is a connection control method. A second object of the present invention is to call the calling subscriber when the telephone number of the called subscriber is changed to a new telephone number and the calling subscriber dials the old telephone number of the called subscriber. The called party with the new telephone number or the subscriber with the old telephone number can be voluntarily selected, and the call can be transferred to the selected subscriber, and under certain conditions, the call is relayed. It is intended to provide a method of controlling an incoming call connection at the time of changing an extension telephone number, which can be transferred and connected to a table. A third object of the present invention is to provide a calling subscriber with a telephone number changed to a new telephone number and the calling subscriber dials the old telephone number of the called subscriber. The called subscriber of the new telephone number or the subscriber of the old telephone number can be freely selected, and the call can be transferred to the selected subscriber.
The call may be transfer connected to the called party at the new telephone number,
There is a method of controlling incoming connection when changing the extension telephone number. A fourth object of the present invention is to provide the calling subscriber with the telephone number of the called subscriber changed to a new telephone number and when the calling subscriber dials the old telephone number of the called subscriber. Provides an incoming call connection control method at the time of changing the extension telephone number so that the call can be transferred and connected to the called subscriber of the new telephone number after the guidance of changing the extension telephone number is given from the exchange side.

[0006]

The first purpose is to call from a voice mail device when a telephone number dialed by a calling subscriber is identified as changed to a new telephone number. For the subscriber, following the extension telephone number change guidance including the name of the new subscriber of the old telephone number and the new telephone number of the called subscriber, either the new subscriber or the called subscriber can be selected. While the extension subscriber selection guidance prompting the user to select the number is sent, in response to this, when the calling subscriber sends the selected branch number as the PB signal, the called subscriber is notified. The incoming call is achieved by being received by either the new subscriber or the called subscriber.

The second purpose is that when the telephone number dialed by the calling subscriber is identified as being changed to the new telephone number, the voice mail device gives the calling subscriber Following the guidance for changing the extension telephone number that includes the name of the new subscriber of the old telephone number and the new telephone number of the called subscriber, it is possible to select either the new subscriber or the called subscriber as the selection branch number. While the extension subscriber selection guidance to the effect of prompting is sent, in response to this, when the calling branch subscriber sends the selected branch number as a PB signal within a certain period of time, an incoming call to the called subscriber is given. Is received by either the new subscriber or the called subscriber, but if the selected branch number is not sent within the fixed time, the incoming call to the called subscriber is received by the relay stand. To be done.

[0008] The third purpose is that when the telephone number dialed by the calling subscriber is identified as being changed to a new telephone number, the voice mail device notifies the calling subscriber of the change. Following the guidance for changing the extension telephone number that includes the name of the new subscriber of the old telephone number and the new telephone number of the called subscriber, it is possible to select either the new subscriber or the called subscriber as the selection branch number. While the extension subscriber selection guidance to the effect of prompting is sent, in response to this, when the calling branch subscriber sends the selected branch number as a PB signal within a certain period of time, an incoming call to the called subscriber is given. Calls the new subscriber or the called subscriber, but if the selected branch number is not sent within the fixed time, the incoming call to the called subscriber is received by the called subscriber. Can be achieved.

The fourth purpose is that when the telephone number dialed by the calling subscriber is identified as being changed to a new telephone number, the voice mail device notifies the calling subscriber of the change. , After the extension telephone number change guidance including the name of the new subscriber of the old telephone number and the new telephone number of the called subscriber is sent, the incoming call to the called subscriber is immediately sent to the called extension subscriber. It is achieved by receiving an incoming call.

[0010]

[Function] When the telephone number dialed by the calling subscriber is identified by the exchange as having been changed to the new telephone number, the new subscriber of the old telephone number is added to the calling subscriber. After the guidance including the name of the new subscriber and the new telephone number of the called subscriber, the guidance prompting the user to select either the new subscriber or the called subscriber is sent. If the selected branch number is sent out as a PB signal from the calling subscriber, the incoming call to the called subscriber will be based on the free will of the calling subscriber,
It can be received by any of the called subscribers. Also,
If the called subscriber is called immediately after the guidance including the name of the new subscriber of the old telephone number and the new telephone number of the called subscriber is sent, be aware of any change in the telephone number of the called subscriber. However, the calling subscriber can be quickly connected to the called subscriber even if the calling terminal is a DP telephone, a facsimile terminal with an automatic transmission function, or the like. Furthermore, if the selected branch number is sent within a certain period of time, the incoming call is made to either the new subscriber or the called subscriber, but if the selected branch number is not sent within the certain period of time, it is received at the relay stand. In this case, the calling subscriber, even if the calling terminal is a DP telephone, can be connected to either the new subscriber or the called subscriber via the relay operator. At that time, when the called subscriber receives the call instead of receiving it at the relay stand, the calling subscriber does not need to be aware of the change of the telephone number of the called subscriber, and Even a DP telephone or a facsimile terminal with an automatic transmission function can be connected to the called subscriber.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to FIGS. First, an outline of an incoming connection control method according to the present invention will be described with reference to FIG.
The explanation is as follows. That is, as shown in the figure, the exchange 1 accommodates a plurality of telephones A, B, C and a voice mail device 2, but in the present example, the subscriber a of the telephone A is transferred to the telephone B by the subscriber a. In addition, it is assumed that for telephone set A, b is a new subscriber, and calling subscriber c calls subscriber a from telephone set C so that calling subscriber c sets up telephone set A. It is assumed that the corresponding telephone number is dialed. Now, when the calling subscriber c dials a telephone number corresponding to the telephone set A, in the exchange 1, since the subscriber a is changed from the telephone set A to the telephone set B, the telephone set is originally routed through the route I. The call to the called subscriber a to be received by A is automatically forwarded to the voice mail device 2 via the route II. As a result, the voice mail device 2 sends the extension telephone number change guidance to the telephone C via the route III. From the contents of this guidance, the calling subscriber c determines the subscribers b and a of the telephones A and B, respectively.
Can be identified. After that, following the extension telephone number change guidance, the extension subscriber selection guidance sent out via route III prompts the extension subscriber number guidance from the calling subscriber c to select one of the subscribers a and b. The PB signal is sent to the voice mail device 2 via the IV, and the voice mail device 2 knows from the selected branch number whether the call transfer destination is the telephone set A or B. Therefore, if the telephone number indicating the call transfer destination is transmitted from the voice mail device 2 to the exchange 1, the called subscriber a, which should normally be received by the telephone A, under the control of the exchange 1 based on the telephone number. Call to route A via telephone A
Alternatively, the call is received by the telephone set B via the route V '.

The outline of the incoming connection control method according to the present invention has been described above. The present invention will be described in more detail below. FIG. 2 shows an internal configuration of an example of the exchange 1 and the voice mail device 2 according to the present invention. As shown in the figure, the telephones 3 to 5 are assumed to correspond to the above-mentioned telephones C, A, and B, respectively, and a telephone path switch 11 The main storage device 13 for storing the exchange control program and various data, and the central processing unit 12 for collectively controlling the exchange operation in the exchange 1 are provided in the main storage device 13. In addition, the subscriber telephone number data 131 and the telephone number corresponding automatic transfer data 132 are registered as updatable. On the other hand, the voice mail device 2 includes the central processing unit 24 for collectively controlling the operation of the voice mail device 2 and the number guidance data 25 for accumulating the guidance data corresponding to the telephone relating to the telephone number change. , A number guidance reproducing section 23 for generating an extension telephone number change guidance and an extension subscriber selection guidance based on the number guidance data 25, a selection branch number from a calling subscriber, and a transfer source telephone number from the exchange 1. A signal receiving unit 21 and a telephone number sending unit 22 for sending a telephone number corresponding to the selected branch number to the exchange 1 are provided.

As shown in FIG. 4, the telephone numbers of the telephones 4 and 5 are "2000" and "5000", respectively, and the subscriber of the telephone 4 is "a". When the subscribers of the telephones 4 and 5 are changed to "b" and "a" respectively due to the change of workplace, the subscriber "c" of the telephone 3 calls "2000" as the old telephone number to call the subscriber a. If it is dialed, depending on the measures taken so far, at best, the guidance "Your telephone number has been changed to 5000. Please connect as it is because I am connecting." (Call) After being sent to subscriber c, the telephone number is "50
The transfer connection was changed to the telephone number "00". However, in the case of the present invention, if the subscriber "c" dials "2000" as the old telephone number to call the subscriber a, the processing flow shown in FIG. 3 (the processing within the one-dot chain line display frame is performed by voice mail). Corresponds to the processing in device 2)
, The call to subscriber a is to be processed accordingly. That is, first, when the calling subscriber type is determined and the calling subscriber type is not the voice mail device 2 or the relay stand, in other words, the calling subscriber is a PB / DP telephone or a facsimile terminal with an automatic calling function. In this case, the extension information of the telephone number "2000" is checked by referring to the subscriber telephone number data 131 and the automatic transfer data 132 (processes 111 to 11).
4). When the transfer destination telephone number is not registered in the automatic transfer data 132 corresponding to the telephone number "2000", it is assumed that the subscriber of the telephone set 4 has not been changed and the calling subscriber type is the voice mail device. As in the case of 2 and relay stand, normal incoming call connection processing is performed. Incidentally, when the calling subscriber type is the voice mail device 2 or the relay stand, the fact that the subscriber has been changed is already known. Therefore, the telephone number 4 (the telephone number 4 of the telephone 4) is immediately transmitted. It is possible to call the telephone number 5 (if the subscriber a of the telephone 4 has been changed), or if the subscriber 5 of the telephone number "5000" has been changed. However, the telephone number “90” of the voice mail device 2 is set as the transfer destination telephone number corresponding to the telephone number “2000”.
If the number "00" is registered, as shown in FIG. 5, it is assumed that the subscriber a of the telephone set 4 has been changed to a subscriber of another telephone set, and a call to the subscriber a is made by a known automatic call. The incoming call is once transferred to the voice mail device 2 by the transfer function (processes 114 and 115). At this time, the transfer source telephone number "2000" is also sent to the voice mail device 2 (process 116).

On the other hand, in the voice mail device 2, when the transfer source telephone number is received via the signal receiving section 21, the telephone number shown in FIG.
Under the control of the central processing unit 24, the corresponding data in the numbering guide data 25 is transferred to the numbering guide reproducing unit 23, and the numbering guide reproducing unit 23 calls the calling subscriber c as shown in FIG. Following the extension telephone number change guidance related to the number "2000", the extension subscriber selection guidance is transmitted (step 117). As such guidance, for example, "the telephone number 2000 you have dialed is currently subscriber b. Subscriber a is 50".
It has been changed to 00. If you are calling subscriber b, please dial "1". If you are connecting to subscriber a, please dial "2". Is sent. As shown in FIG. 7, when the guidance prompts the calling subscriber c to dial "1" or "2" as a branch number, the branch number is a PB signal and is a signal in the voice mail device 2. In addition to being received by the receiving unit 21, the content is analyzed by the central processing unit 24 (process 118). According to the analysis result, as shown in FIG. 8, the telephone number corresponding to the selected branch number is transmitted from the telephone number transmission unit 22 to the exchange 1 (processes 119 and 120). In the example shown in FIG. 8, the old telephone number "2000", that is,
Since subscriber b has been selected as the called subscriber,
As shown in FIG. 9, the call to the subscriber a is connected to the telephone set 4 of the subscriber b. At this time, if the telephone number "5000" is selected, the call to the subscriber a is of course connected to the telephone set 5 of the subscriber a. After all, the incoming call to the called subscriber a can be received by either the new subscriber b or the called subscriber a based on the free will of the calling subscriber c. Not only when the transfer destination of the subscriber a is a telephone that accommodates the exchange 1, but also when it is a telephone that accommodates a private line or a telephone that directly accommodates an office line, incoming connection to these telephones is possible. It has been done.

By the way, in the above, the destination telephone number is selected after waiting for the selected branch number from the calling subscriber c, but the selected branch number is dialed within a fixed time after the guidance is sent from the voice mail device 2. If not, the telephone number "5000" is received so that the original called subscriber a can receive the call.
The number may be unconditionally selected.
In this way, when the telephone number "5000" is unconditionally selected, the calling subscriber c does not care about the change of the telephone number of the called subscriber a, and the calling subscriber c Even a DP telephone or a facsimile terminal with an automatic transmission function can be quickly connected to the called subscriber a.

The case where the telephone 5 is equipped with a facsimile terminal with an automatic transmission function is as follows. That is, for example, although the facsimile terminal with an automatic transmission function was originally attached to the telephone number "2000", the facsimile terminal was moved to the telephone number "5000" by changing the company number. Assuming that the telephone set 4 is newly changed to another subscriber b, if an attempt is made to perform a facsimile transmission from the outside facsimile terminal to the telephone number 4 of the telephone number "2000," the exchange 1 Similar to the case, the call to the telephone 4 is transferred to the voice mail device 2 by the automatic transfer function. The voice mail device 2 sends the extension telephone number change guidance, followed by the extension subscriber selection guidance, but the content of the guidance cannot be understood by the facsimile terminal with an automatic transmission function which is the calling subscriber. As it is, while waiting for the connection with the partner facsimile terminal, the voice mail device 2 eventually does not send the selected branch number from the calling subscriber within a fixed time after the guidance is sent, and the telephone 4
To the telephone 5 having the telephone number "5000", which is the transfer destination.

The present invention has been described above. By the way, in the above, since the DP calling subscriber cannot send the selected branch number as the PB signal, although the called subscriber of the new telephone number is allowed to receive the incoming call, the old telephone number of the old telephone number is still available. Due to the free will, new subscribers cannot receive incoming calls. In order to make this possible, it is conceivable that once the selected branch number is not sent out within a certain period of time, the incoming connection is once made to the relay stand. When an attendant is used, the calling subscriber can be arbitrarily connected to either the new subscriber or the called subscriber even if the calling terminal is a DP telephone. It is a thing.

The case in which a call is temporarily connected to the relay station when the selected branch number is not transmitted within a fixed time will be described below. FIG. 10 shows the present invention in which call transfer to the relay station is considered. The internal configuration of an example of the exchange 1 and the voice mail device 2 is shown. In this case, what is substantially different from that shown in FIG. 2 is that the exchange 1 has the telephone 6 for the relay connection operator as an existing one or is newly accommodated and the extension telephone number change guidance is provided. Subsequently, after the extension subscriber selection guidance is sent, if the selected branch number is not sent from the DP calling subscriber within a fixed time, the telephone number sending unit 22 sends the telephone number corresponding to the telephone 6 to the exchange 1. By sending the number, the call to the called subscriber a is once transferred to the attendant. FIG. 11 shows an example of the incoming call connection control processing flow when changing the extension telephone number according to the present invention in consideration of the call transfer to the relay stand. As can be seen from this, the DP calling subscriber within a certain time If the selected branch number is not transmitted, the call to the called subscriber a is once transferred to the telephone 6 (process 12).
1). As a result, the DP calling subscriber informs the relay connection handler of either the new subscriber b or the called subscriber a as an incoming connection destination, so that the relay connection handler can use a known call. By the back transfer function,
Although the incoming call destination telephone number is dialed, the caller in this case is used as a relay stand, so that the call from the DP calling subscriber is performed by the telephone 4 or the telephone by performing the normal connection processing. 5 can be arbitrarily received (process 113).

[0019]

As described above, according to claim 1, the telephone number of the called subscriber is changed to the new telephone number, and the calling subscriber dials the old telephone number of the called subscriber. In this case, the calling subscriber may be selectively connected to either the called party of the new telephone number or the subscriber of the old telephone number by the voluntary willingness of the calling subscriber. Is the new telephone number of the called subscriber, if the telephone number of the called subscriber is changed to a new telephone number and the calling subscriber dials the old telephone number of the called subscriber. 4. The call may be selectively transfer-connected to either the called subscriber or the subscriber with the old telephone number, and under certain conditions the call may be transfer-connected to the attendant base, further according to claim 3. For example, the telephone number of the called party is changed to a new telephone number, and the calling party When the old telephone number of the called subscriber is dialed, the called subscriber of the new telephone number or the subscriber of the old telephone number is selected and selected by the calling subscriber's free will. The call can be transfer-connected to the called subscriber and, under certain conditions, the call can be transfer-connected to the called subscriber of the new telephone number, and also according to claim 4, the called subscriber. When the caller's telephone number is changed to a new telephone number and the calling subscriber dials the called subscriber's old telephone number, the calling party is provided with the extension telephone number change guidance from the exchange side. Later, the call can be quickly transfer connected to the called party of the new telephone number.

[Brief description of drawings]

FIG. 1 is a diagram for explaining an outline of an incoming connection control method according to the present invention.

FIG. 2 is a diagram showing an internal configuration of an example of an exchange and a voice mail device according to the present invention.

FIG. 3 is a diagram showing an example of an incoming call connection control processing flow when an extension telephone number is changed according to the present invention.

FIG. 4 is a diagram (No. 1) for explaining the incoming call connection control processing operation;

FIG. 5 is a diagram for explaining the incoming connection control processing operation thereof (Part 2).

FIG. 6 is a diagram (part 3) for explaining the incoming connection control processing operation of the same.

FIG. 7 is a diagram (part 4) for explaining the incoming connection control processing operation of the same.

FIG. 8 is a diagram for explaining the incoming call connection control processing operation (No. 5).

FIG. 9 is a diagram (No. 6) for explaining the incoming connection control processing operation of the same.

FIG. 10 illustrates a call transfer to a relay console,
The figure which shows the internal structure in an example of the exchange and voice mail apparatus which concern on this invention.

FIG. 11 illustrates a call transfer to a relay console,
The figure which shows the example of incoming call connection control processing flow at the time of changing the extension telephone number which concerns on this invention

FIG. 12 is a diagram for explaining a coping method according to the related art when changing an extension telephone number.

[Explanation of symbols]

1 ... Private branch exchange, 2 ... Voice mail device, 3, 4, 5 ... Extension telephone, 6 ... Telephone for person handling relay connection

Claims (4)

[Claims] 1. In the private branch exchange, when the extension telephone number of the called extension subscriber has been changed, the former extension telephone number is dialed from the calling extension subscriber to call the called extension subscriber. Incoming connection control method in
If it is identified that the extension telephone number dialed by the calling extension subscriber is changed to the new extension telephone number based on the extension subscriber telephone number data stored as updateable in the private branch exchange, An incoming call to the called extension subscriber is automatically forwarded to the voice mail device once, and the calling extension subscriber from the voice mail device sends the name of the new extension subscriber of the old extension telephone number and the called subscriber. Continuing with the extension telephone number change guidance including the new extension telephone number of the call extension subscriber,
An extension subscriber selection guidance for prompting the user to select either the new extension subscriber or the called extension subscriber as a selection branch number is transmitted, while the calling extension is issued in response to the extension subscriber selection guidance. When the subscriber sends the selected branch number as a PB signal to the voice mail device,
The incoming call from the calling extension subscriber to the called extension subscriber is controlled by the private branch exchange based on the extension telephone number corresponding to the selected branch number transferred from the voice mail device. A method for controlling incoming connection when an extension telephone number is changed so that an extension subscriber can receive an incoming call. 2. The private branch exchange, when the extension telephone number of the called extension subscriber is changed, the former extension telephone number is dialed from the calling extension subscriber to call the called extension subscriber. Incoming connection control method in
If it is identified that the extension telephone number dialed by the calling extension subscriber is changed to the new extension telephone number based on the extension subscriber telephone number data stored as updateable in the private branch exchange, An incoming call to the called extension subscriber is automatically forwarded to the voice mail device once, and the calling extension subscriber from the voice mail device sends the name of the new extension subscriber of the old extension telephone number and the called subscriber. Continuing with the extension telephone number change guidance including the new extension telephone number of the call extension subscriber,
An extension subscriber selection guidance for prompting the user to select either the new extension subscriber or the called extension subscriber as a selection branch number is sent out, while a response to the extension subscriber selection guidance is sent within a certain period of time. When the selected branch number is sent to the voice mail device as a PB signal by the calling extension subscriber, the call is controlled by the private branch exchange based on the extension telephone number corresponding to the selected branch number transferred from the voice mail device. The incoming call from the calling extension subscriber to the called extension subscriber is received by either the new extension subscriber or the called extension subscriber, and the selected branch is selected from the calling extension subscriber within the fixed time. If the number is not sent as a PB signal to the voice mail device, under the control of incoming call by the private branch exchange based on the extension telephone number corresponding to the relay station transferred from the voice mail device,
A method of controlling incoming connections when an extension telephone number is changed so that an incoming call from a calling extension subscriber to a called extension subscriber is received by a relay stand. 3. In the private branch exchange, when the extension telephone number of the called extension subscriber is changed, the former extension telephone number is dialed from the calling extension subscriber to call the called extension subscriber. Incoming connection control method in
If it is identified that the extension telephone number dialed by the calling extension subscriber is changed to the new extension telephone number based on the extension subscriber telephone number data stored as updateable in the private branch exchange, An incoming call to the called extension subscriber is automatically forwarded to the voice mail device once, and the calling extension subscriber from the voice mail device sends the name of the new extension subscriber of the old extension telephone number and the called subscriber. Continuing with the extension telephone number change guidance including the new extension telephone number of the call extension subscriber,
An extension subscriber selection guidance for prompting the user to select either the new extension subscriber or the called extension subscriber as a selection branch number is sent out, while a response to the extension subscriber selection guidance is sent within a certain period of time. When the selected branch number is sent to the voice mail device as a PB signal by the calling extension subscriber, the call is controlled by the private branch exchange based on the extension telephone number corresponding to the selected branch number transferred from the voice mail device. The incoming call from the calling extension subscriber to the called extension subscriber is received by either the new extension subscriber or the called extension subscriber, and the selected branch is selected from the calling extension subscriber within the fixed time. If the number is not sent as a PB signal to the voice mail device, the call extension subscriber calls the called extension under call control by the private branch exchange based on the new extension telephone number transferred from the voice mail device. Incoming connection control method at the time of telephone extension changes as incoming calls to subscribers are coming into said called extension subscriber. 4. In the private branch exchange, when the extension telephone number of the called extension subscriber has been changed, the former extension telephone number is dialed from the calling extension subscriber to call the called extension subscriber. Incoming connection control method in
If it is identified that the extension telephone number dialed by the calling extension subscriber is changed to the new extension telephone number based on the extension subscriber telephone number data stored as updateable in the private branch exchange, The incoming call to the called extension subscriber is automatically forwarded to the voice mail device, and then the voice mail device gives the calling extension subscriber the name of the new extension subscriber of the old extension telephone number and the called party. After the extension telephone number change guidance including the new extension telephone number of the extension subscriber is sent, the calling extension subscriber receives a call from the calling extension subscriber under the incoming call control by the private branch exchange based on the new extension telephone number transferred from the voice mail device. A method of controlling incoming connection when an extension telephone number is changed so that an incoming call to a call extension subscriber is immediately received by the called extension subscriber.