JPH0691586B2 - Method for storing voice messages from the calling subscriber when the called subscriber does not respond / when busy - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to storing voice messages from a calling subscriber when the called subscriber is busy or does not answer the call. The present invention relates to a voice message storage method that is registered in a device, and in particular, it is not necessary for each calling subscriber to send out a called subscriber telephone number or the like as a transmission destination code, and a voice from the calling subscriber is not required. The present invention relates to a method for accumulating a voice message from a calling subscriber when the called subscriber does not respond / busy when a message is registered.

[Background of the Invention]

Up to now, when an incoming call is received by the called subscriber, the called subscriber does not respond even if called by the exchange for a certain period of time, or when the called subscriber is busy. As a coping method, for example, a substitute call by call transfer is considered. The incoming call is forwarded with the telephone number registered in advance in the exchange by the called subscriber as the forwarding destination. If the call transfer destination responds to the call from the exchange, the calling subscriber can make a call with a third party (including the called subscriber) in place of the called subscriber. By the way, recently, as an alternative to the substitute call based on the call transfer, the voice message storage service based on the call transfer is gradually put into practical use. This is because if the telephone number of the voice message storage device is registered as the call transfer destination, the voice message addressed to the called subscriber will be sent while the calling subscriber is connected to the voice message storage device by the call transfer. It can be automatically registered, and the called subscriber can later listen to the contents of the voice message at any time by a voice message reproduction request from the called subscriber. When the voice message from the calling subscriber is registered with the called subscriber's telephone number as the destination code, the called subscriber uses his or her telephone number as a key to send the voice message addressed to himself from the voice message group. It is possible to selectively search, and the searched voice message is reproduced as a voice so that the called subscriber can know the content.

As described above, in the conventional voice message storage service, when each voice message is registered, the called subscriber telephone number is added as a transmission destination code corresponding to the voice message, while the called subscriber ,
There is a voice message storage service by call forwarding that allows you to search and play voice messages addressed to you using your own telephone number as a key, but when this voice message storage service is performed, As a problem, there is a method of giving a transmission destination code to each voice message. As a method of giving a transmission destination code, those described in, for example, the document “Voice Storage Service Concept” (SE79-98) and the document “Voice Storage Service Method” (SE82-54) have been known so far. According to these documents, when the calling subscriber is connected to the voice message storage device for call transfer connection, the dialing operation by the calling subscriber causes the voice message storage device to receive the telephone number of the called subscriber and security information.
ID etc. need to be sent. However, the problem in this case is the subscriber service class type of the calling subscriber. That is, the calling subscriber's telephone sets the DTMF (Dual Tone Multi Frequency) signal (so-called P
As long as it can send B signal), no trouble will occur, but if it is only DP (dial pulse) signal that can be sent (rotary dial telephone), DP as DC pulse The signal is that it cannot be transferred within the telephone switching network (especially if the telephone switching network is a time division telephone switching network). In other words, from the rotary dial telephone to the voice message storage device,
The required incoming subscriber telephone number etc. cannot be sent out,
Because of this, the calling subscriber of the rotary dial telephone cannot receive the voice storage service.

[Object of the Invention]

The object of the present invention is not dependent on the subscriber service class type, and therefore even if the originating subscriber of a rotary dial telephone sets, the originating subscriber will receive from each of the originating subscribers a called subscriber telephone number or the like as a transmission destination code. To store voice messages from the calling subscriber without the need to be sent, so that voice messages from the calling subscriber can be registered.

[Outline of Invention]

For the above purpose, the present invention provides an incoming call corresponding to the called subscriber when the called subscriber has an incoming call and the called subscriber is busy or does not answer the call. If the telephone number of the voice message storage device accommodated as a common device in the exchange is registered as the transfer destination, the telephone number of the called subscriber is displayed from the telephone exchange after the voice message registration service special number. After the DTMF signal is automatically sent from the DTMF signal transmitter that is commonly installed in the telephone exchange, the incoming call to the called subscriber is transferred to the voice message storage device for the first time. A voice message from a calling subscriber whose subscriber service club type is arbitrary can be automatically registered by using the above called subscriber telephone number as a transmission destination code. It is.

Example of Invention

 The present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 shows an example of a switching network including a voice message storage device and an automatic telephone exchange according to the present invention, and FIG. 2 shows a state transition in the automatic telephone exchange (hereinafter, simply referred to as an exchange). It is a thing. As shown in FIG. 1, the switching network in this example is configured as a single switching device, and the switching network SW for forming a speech path as a component thereof includes subscribers (telephones) A, B and voices. In addition to the message storage device VMS, the transmission register OR, the subscriber mutual trunk IOT, the transmission register OS, etc. are accommodated, and a desired speech path is set in the switching network SW under the control of the central processing unit CPU. It has been approved.

First, assuming that the subscriber A is a called subscriber, the pre-registration of the call transfer destination by the subscriber A will be explained. If the subscriber A makes a call by putting the telephone set in the off-hook state, the call information is given. Is notified to the central processing unit CPU via the signal distribution unit SRD. Based on this notification, under the control of the central processing unit CPU, the vacant transmission register OR is selected, and after the subscriber A is connected to this via the route 1 set in the switching network SW, the subscriber is joined. A dial tone is sent from the call register OR to the person A. If the dial tone prompts subscriber A to dial the call forwarding registration special number, dialing the call forwarding destination telephone number (in this example, the representative telephone number of voice message storage device VMS) is dialed. The information is received by the transmission register OR and is also notified to the central processing unit CPU via the signal distribution device SRD. In the central processing unit CPU, the incoming call forwarding destination registration processing is started based on the incoming call forwarding registration special number, and the incoming call forwarding destination telephone number is registered in the incoming call forwarding destination storage unit D on the main storage device MM in correspondence with the subscriber A. It is something. When the registration of this call transfer destination is completed, the central processing unit
Registration completion is notified from the CPU to the transmission register OR via the signal distribution device SRD, and the registration completion tone sent from the transmission register OR is heard by the subscriber A. It is known that registration is completed. If subscriber A confirms that registration is complete and then puts the phone on-hook, subscriber A, the calling register OR
By releasing the route 1 between the subscribers, when the subscriber A subsequently receives an incoming call, the subscriber A does not respond even if the subscriber A is called by the exchange for a certain period of time, or the subscriber A When A is in a busy state, in the exchange, the call transfer destination telephone number corresponding to the subscriber A is read from the call transfer destination storage unit D and the call is transferred to the call transfer destination. Is. Even when the subscriber B pre-registers the call transfer destination, the call transfer destination telephone number corresponding to the subscriber B can be registered in the same manner.

Now, assuming that the telephone number of the subscriber A is dialed from the subscriber B who is the calling subscriber, the voice storage service according to the present invention will be described as follows.

That is, if the subscriber B takes the telephone off-hook, the subscriber B and the transmission register OR are connected via the route 1'set in the switching network SW in the same manner as described above, and the subscriber is also connected. A dial tone is sent to B. In FIG. 2, state transition number 11
The corresponding state shows the state. Now, if the subscriber B confirms the dial tone and the telephone number of the subscriber A is dialed, this telephone number is set to the calling register.
In addition to being received by OR, it is notified to the central processing unit CPU via the signal distribution device SRD. Central processing unit CPU
Since no special number is added to the telephone number, it is determined that the telephone number is a normal calling telephone number, and then the subscriber data corresponding to the subscriber A in the main storage device MM is first referred to. It has become one. It is easily known from the subscriber data whether subscriber A is idle or busy, but if it is determined that the subscriber A is busy, the call transfer destination storage unit D handles subscriber A. The telephone number to which the call is transferred is read out. Further, if the subscriber A is idle, the subscriber A is called by the call signal for a certain period of time, but if the subscriber A does not answer the call, it is in the busy state. Similarly to the case, the call transfer destination telephone number corresponding to the subscriber A is read from the call transfer destination storage unit D. In this example, the call transfer destination telephone number corresponding to the subscriber A is registered as the representative phone number of the voice message storage device VMS, but in the central processing unit CPU, the call transfer destination telephone number is the telephone number of the general subscriber. That is, it is known whether it is the representative telephone number of the voice message storage device VMS. In the case of the general telephone number of the subscriber, the normal call transfer control is adopted so that the calling subscriber B can be connected to the call transfer destination, but if it is the representative telephone number of the voice message storage device VMS. Is connected to the voice message storage device VMS from the exchange before the calling subscriber B is connected to the voice message storage device VMS for call transfer.
In this case, the called subscriber telephone number and the like as the transmission destination code are automatically transmitted by the DTMF signal.

More specifically, when it is determined that the call transfer destination is the voice message storage device VMS, the central processing unit C
Under the control of the PU, after the route 1'between the calling subscriber B and the calling register OR is released, an empty sending register OS is selected, and then the sending register OS and the voice message storage device VMS are connected. But the switching network SW
It is once connected via the route 2 set inside. In FIG. 2, the state corresponding to the state transition number 12 shows that state. In this state, the central processing unit CPU sends to the voice message storage unit VMS the message registration service number via the signal distribution unit SRD and the transmission register OS, followed by the telephone number of the subscriber A as the transmission destination code of the DTMF signal. It is automatically sent in the format. Based on the received message registration service number, the voice message storage device VMS is placed in the voice message registerable state.

On the other hand, on the exchange side, when transmission of the telephone number of the subscriber A from the transmission register OS is completed, the route 2 between the transmission register OS and the voice message storage device VMS is released under the control of the central processing unit CPU. In addition, by the routes 3 and 4 newly set in the switching network SW,
For the first time, the calling subscriber B has a call transfer connection to the voice message storage device VMS via the subscriber mutual trunk IOT. In FIG. 2, the state transition number 13
The corresponding state shows the state. In this state, the voice from the calling subscriber B is stored in the voice message storage device.
It can be registered (recorded) as a voice message in the VMS. At that time, the telephone number of the subscriber A is associated with the voice message as a transmission destination code. Eventually, when the calling subscriber B goes on-hook with the completion of the registration of the voice message, the routes 3 and 4 set in the switching network SW are released, and the series of voice storage service processing is terminated. Is.

Finally, registered in the voice message storage device VMS,
The case where the subscriber A plays and listens to the voice message addressed to the subscriber A will be briefly described as follows.

That is, if the subscriber A takes the telephone off-hook, the subscriber A and the calling register OR are connected, and the subscriber A can hear the dial tone. In this state, the subscriber A receives the voice message storage device VMS. The representative telephone number is dialed. As a result, the subscriber A is connected to the voice message storage device VMS via the subscriber mutual trunk IOT. In this state, if the subscriber A sends out its own telephone number in the DTMF signal format following the message reproduction service number, the voice message storage device VMS will use the telephone number as a key to extract from the voice message group. Since the voice message addressed to the subscriber A is retrieved and reproduced as a voice, the subscriber A can know the content.

〔The invention's effect〕

As described above, in the case of the present invention, regardless of the subscriber service class type, even if the originating subscriber of the rotary dial telephone, the originating destination subscribers use the transmission destination code as the destination code. The voice message from the calling subscriber can be registered without having to send out the telephone number of the called subscriber.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a switching network including a voice message storage device and an automatic telephone exchange according to the present invention, and FIG.
The figure is a diagram showing the state transition in the exchange. SW: Switching network, OR: Transmission register, OS
… Transmission register, A, B… Subscriber (telephone), D… Call forwarding destination storage

Claims (1)

[Claims] 1. When an incoming call is received by the called subscriber, if the called subscriber is busy or does not answer the call, the called subscriber places the call in a telephone exchange beforehand. , If the telephone number of the voice message storage device accommodated as a common device to which the representative telephone number is assigned to the telephone exchange is registered as the call transfer destination corresponding to the called subscriber, the calling subscriber is After the call transfer connection is made to the voice message storage device via the telephone exchange, the voice message from the calling subscriber is later transmitted by the voice message reproduction request from the called subscriber by the DTMF signal including the own telephone number. A method of storing a voice message from a calling subscriber when the called subscriber does not respond / is busy and is registered as playable at any time. If the subscriber is busy or does not answer the call, and if the telephone number of the voice message storage device is registered as the call transfer destination for the called subscriber, the telephone exchange. From the voice message registration service special number, the called subscriber's telephone number is automatically transmitted as a DTMF signal from the DTMF signal transmitter commonly provided in the telephone exchange,
When an incoming call to the called subscriber is first transferred to the voice message storage device, the above-mentioned called subscriber telephone number is used as the transmission destination code, and the calling service from the calling subscriber whose subscriber service class type is arbitrary A method for accumulating voice messages from the calling subscriber when the called subscriber does not respond or is busy when the voice messages are automatically registered.