JPH02241165A - Guide system for incoming call when one is absent - Google Patents

Abstract

PURPOSE:To allow the subscribers not only of an analog network but of an ISDN network to receive respective types of guidance service by sending information on the basis of digital code when a calling side uses an ISDN network telephone device, and sending the information after converting it into a voice when the calling side uses an analog network telephone set. CONSTITUTION:When the telephone device is set in an absent mode by a mode set operating means 4, a CPU 2 always supervises an incoming call from an ISDN network, when the incoming call is generated, the CPU 2 reads the call setting message sent from the ISDN network through an S interface 1, and discriminates the type of the subscriber telephone network of the calling person by network discriminating information included in a call control message. When the calling person is the ISDN network subscriber, the CPU 2 outputs absence guidance, transmission ID notifying guidance, etc., on a sentence basis, and when the calling person is the analog network subscriber, it outputs the guidance on a voice basis. Thus regardless of the types of the subscriber telephone network of the calling person, the respective types of the guidance service for the incoming call when one is absent can be outputted.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a system for providing notification to the caller of the caller's absence or the caller number of an already received call when a call is received while the caller is absent. In particular, the present invention relates to the above-mentioned guidance system when a telephone device is connected to a digital telephone network and calls can be received from subscribers of both the analog telephone network and the digital telephone network.

[Problems to be solved by the invention] In recent years, digital telephone networks have entered the practical stage, and the so-called I
The SDN network has been constructed.

In devices connected to an ISDN network, a non-call service is provided in which data is exchanged between users via the D channel at the call setup control stage. Separately, we invented an absentee notification system and a remote reading system for incoming messages using this service. However, the above-mentioned separate invention is an invention that can be implemented in the case where both the calling side and the called side are devices connected to an ISDN network. In the case of reading, etc., if the calling party is, for example, a telephone connected to an analog network, the above service cannot be received. Note that a relay station is provided between the ISDN network and the analog network, and communication across both networks is possible.

SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide a guidance system that allows various guidance to be provided from a telephone device connected to an ISDN network even when a call is made from an analog network.

[i%! [Means for Solving the Problems] In order to solve the above problems, the present invention provides a system in which a telephone device connected to an ISDN network uses information contained in a call control message sent from the ISDN network when a call is received. Then, it is determined whether the calling party's subscriber telephone network is an ISDN network or an analog network, and if it is an ISDN network, 1. without performing response control. Information is sent as a digital code D
In the case of an analog network, the incoming call is automatically answered to complete the B channel of the ISDN network, and the information to be transmitted stored in digital code is converted into an audio signal and the above-mentioned The signal is sent to the B channel.

[Function] From a telephone device connected to the IS [IN line], the calling party
In the case of an SDN network telephone device, the information is sent as a digital code, and if the calling party is an analog network telephone device, the digital code is converted into voice and the information is sent from the ISDN network telephone device of the receiving party. Whether the calling subscriber is an analog network subscriber or an ISDN network subscriber, he or she can receive various guidance services from the called telephone device.

[Embodiment] The drawings explain the present invention in detail, and FIG. 1 is a block diagram of a telephone device, and FIG. 2 is a flowchart showing control.

Note that this embodiment provides a service that sends an out-of-office notification message from the called device and a caller number (caller ID, calling number of a call that arrived at the telephone device when the user is absent) stored in the called device. This is an example in which the present invention is implemented in a service that remotely reads data from a telephone device.

Each part of the telephone device shown in the drawings will be explained.

1 is an S interface which is a connection device with the ISDN network, and separates information transmitted from the ISDN network on its B channel and D channel, or sends information to the ISDN network into the B channel or the D channel depending on the type. It operates to apply to the D channel.

2 is the caller number (caller ID) for the missed message and the received call.
A central control unit (hereinafter referred to as a CPU) that collectively controls the telephone device, including sending control of the CPU, etc., and is usually mainly composed of a microprocessor.

Reference numeral 3 denotes a telephone communication network including a co-op, and 4 a telephone receiver, each of which is used for voice communication.
ISDNil from PII 2! Information to be sent to the B channel of l (speech synthesized absence notification message or caller ID)
etc.) (converts the audio signal into a digital code using a copier and inserts it into the B channel).

Reference numeral 5 denotes a remote setting operation means for setting various modes of the telephone device including the absence guidance mode according to the present invention.

Numeral 6 is an absentee message memory, 7 is a password memory, and 8 is a caller ID memory, each of which stores an absentee notification message, a password, and a calling party number (caller ID) in digital code.

Reference numeral 9 denotes a signal converting means for converting the information stored in the absent message memory 6 and caller ID memory 8 into a signal form to be transmitted to the B channel of ISDN 121, and is composed of, for example, a voice synthesis circuit (hereinafter, a voice synthesis circuit will be used). (For example, it is assumed that the signal converting means 9 is a speech synthesis section.) Next, the operation of the embodiment will be explained.

For example, when you are away from home, such as when you go out, you first register your absence notification message and password in your telephone device. That is, when the mode setting operation means 5 is set to the absence guidance message registration mode and the absence guidance message is inputted by the manual message means (not shown), the absence guidance message is stored in the absence message memory 6 in text format using a digital code. Next, the mode is set to a password registration mode, and when a password is input using a dial not shown, the password is stored in the password memory 7 as a digital code.

After the above operations, the mode setting operation means 5 sets the telephone device to the absent mode.

CPII 2 constantly monitors incoming calls from ISDNtfl. When an incoming call occurs, ISDNI will send the
A call control message (call setup message) for call setup is sent to the channel. This call setup message indicates whether the calling party's subscriber telephone network is an analog network or an ISD network.
It includes identification information (referred to as a progress identifier) to identify whether the caller is an ISDN network subscriber, and if the caller is an ISDN network subscriber, the caller's telephone number information (caller ID) is included. included.

When the CPt 12 reads the call setting message sent from the ISDN III via the S interface 1, it determines that an incoming call has occurred.

Upon determining that an incoming call has occurred, CP[] 2 then determines whether the telephone device is in absentee mode. When not in the absent mode, the CPU 2 performs general incoming call processing, that is, processing for making a voice call with the caller via the B channel (this processing will not be described in detail since it is not directly related to the present invention). In this case, since the telephone device is in the absent mode, the CPU 2 next determines whether the progress identifier included in the call setup message is one that identifies an ISDN network (ISDN identifier) or one that identifies an analog network (an analog identifier).

When the cPU A identifier is an ISDN identifier, that is, when the calling party is a subscriber to an ISDN network, the next cPU
Step 2 determines whether or not the user-to-user information sent with the call setting message includes a password.

This PIN number is used when remotely inquiring the incoming call optical ID, which will be explained later (when the user of the telephone device inquires about the calling number of an incoming call to the telephone device remotely from an external telephone device while the user is absent). It is something that is sent to you. Therefore, when receiving a call from a general person, the PIN number is not included in the above-mentioned user-to-user information, and when CPII 2 confirms that the PIN number is not included in the user-to-user information, it is then included in the call setup message. The calling party number received is stored in the calling ID memory 8 and stored. ISDN while you are away like this
When a call is received from a network subscriber, the telephone number of the subscriber is stored.

Next, C['U 2 reads the absence guidance message stored in the absence message memory 6, creates inter-user information including the absence guidance message to be sent to the calling party, and then performs line release control.

During line release control, CPII 2 is connected to S interface 1.
A call control message (release completion message) for line release is sent to the D channel of the ISDN network via
When this release completion message is sent, user-to-user information is also allowed to be sent to the calling party.
The CPU 2 sends a release completion message and inter-user information including the above-mentioned absence notification message to the D channel of the 15TIN network via the S interface 1, thereby completing the series of controls.

The above-mentioned user-to-user information is sent to the calling side telephone device on the D channel together with a call control message (release message) indicating line disconnection. The CPU 2 extracts the absence notification message from the read user information and displays it in text on the off-screen message display means.

In the process of determining the presence or absence of the PIN number, when CPU 2 identifies that the @ID number is included in the inter-user information from the calling party, then CP[+2 The personal identification number stored in the memory 7 is compared with the personal identification number, and if the two do not match, the control from the reading out of the absence notification message from the absence message memory 6 is carried out. If both pin numbers match, the current incoming call is an incoming call for remote inquiry of the incoming call optical ID, and the CPII 2 retrieves the calling party number stored up to that point from the calling ID memory 8. and create user-to-user information including the calling number. Thereafter, in the same way as when receiving a call from a general person, the user-to-user information including the calling number is sent to the calling party's telephone device, and the telephone device displays an unillustrated message in the same way as the out-of-office message. The calling party number is displayed on the message display means.

In addition, in the process of determining the progress identifier, if the progress identifier is determined to be an analog identifier, that is, if the calling party is a subscriber of an analog network, the CPI
I2 performs automatic response processing for incoming calls. That is, CPIJ 2 connects to ISDN via S interface 1.
A call control message (
In response to this, the ISDN network sets up a B channel between the calling telephone device and the receiving telephone device. When the B channel is completed, a call control message (response confirmation message) to confirm the response is sent from the ISDN network to the called telephone device via the D channel, so CPII 2 sends this response confirmation message to S. Read through interface 1 to confirm completion of the B channel. Next, the CPt12 determines whether or not the PIN number has been sent from the calling party. This password has the same purpose as when receiving a call from an ISDN network subscriber.

If the above-mentioned PIN code is not received, the CPt 12 reads out the absence notification message stored in digital code from the absence message memory 7, and uses the voice synthesis section 9 to generate an absence notification message in voice (analog signal) based on the absence notification message. are combined and sent to the communication network 3. In the telephone communication network 3, the voice notification message is converted into a digital signal via a codec, and the CP
The U 2 sends the absence notification message converted into a digital signal to the B channel of the ISDN network via the S interface 1. This absence notification message is converted back into voice at the relay station between the ISDN network and the analog network, and is sent to the telephone device of the calling party (telephone device for the analog network, for example, a regular telephone). As a result, the calling party is notified by voice that the called party is absent.

After performing the voice notification service as described above, the CPU 2 performs line release control and
A call control message (disconnection message) for disconnecting the line is sent to the D channel of i9 via the S interface 1, and the series of controls is completed. In response to the above-mentioned disconnection message, the ISDN network releases the B channel set for the calling and terminating sides.

In addition, in determining the presence or absence of the PIN number, the CPII
2 identifies that the PIN has been received, then C
The PII 2 compares the password with the password stored in the password memory 7. In this case, the PIN number is a number sent by a dial signal from a telephone if the telephone device on the calling side is an analog network, and this number information is transmitted via the ISDN B channel. . Therefore, since the CPU 2 receives the PIN number in the form of an analog signal through the communication network 3, the CPLI 2 identifies the PIN number by its dial signal analysis function and then verifies the PIN number.

If it is determined that the password is incorrect as a result of the password verification process, C1'Ll2 performs the control from the readout process of the absence notification message from the absence message 6. When the PIN is determined to be correct, the CPt 12 reads out the calling number stored in the digital code from the calling ID memory 8, and uses the voice synthesizer 9 to generate voice (analog) based on the calling number. Thereafter, the calling party number is sent to the calling party's telephone device via the B channel of the ISDN network in the same way as when sending the absence notification message. Line control for the ISDN network after sending the calling party number is also the same as when sending the absence notification message.

As described above, the caller (the user of the called party's telephone device who was absent) can receive calls from an analog network telephone device, such as a public telephone, to his own telephone device while he is absent (however,
The caller of an incoming call (incoming call from an ISDN network subscriber) can be confirmed.

In the above control, the type of subscriber telephone network of the calling party is determined based on the calling I
This can also be done with or without D. That is, this is because the optical ID is included in the call setup message only when the call is received from an rsDN network subscriber.

Further, the conversion of the digital code of the out-of-office message or the calling party number does not necessarily need to be converted into voice. In other words, when converting to voice, ISDNw9B is used again.
This is because it is reconverted into a digital signal for transmission to the channel. However, absent message memory 6 and caller ID
The information stored in the memory 8 consists of the number of bits suitable for character transmission (the number of bits for D channel transmission) and the number of bits suitable for voice transmission (the number of bits for B channel transmission). Because of the difference, signal conversion processing is necessary when transmitting this information to the B channel.

[Effects of the Invention] As explained above, the present invention identifies the type of subscriber telephone network of the caller in response to an incoming call when the user is not present, based on the network identification information included in the call control message sent from the ISDN network. However, if the caller is an ISDN lil subscriber, the caller will be provided with text notifications such as absence information and caller ID notification, and if the caller is an analog network subscriber, the above guidance will be provided by voice. There are advantages of ISDN networks for incoming calls from ISDN network subscribers (non-communication information can be exchanged at the call control stage, information can be transmitted quickly,
The effects of the present invention are extremely remarkable, such as being able to enjoy the advantages of low communication costs, etc.), and being able to provide various guidance services for missed calls regardless of the type of subscriber telephone network of the caller.

[Brief explanation of drawings]

Each of the drawings provides a detailed explanation of the present invention; FIG. 1 is a block diagram of the telephone device, and FIG. 2 is a flowchart showing control. 2...cpu. 6... Absence message memory, 7... PIN number memo 1c, 8... Caller ID memory, 9
...Speech synthesis section.

Claims (1)

[Claims] 1. In a telephone device connected to an ISDN network, when a call is received, the telephone device uses network identification information included in a call control message sent from the ISDN network to identify the calling party's subscriber telephone network. a calling party network identification means for identifying whether the caller is an analog network or an ISDN network; a storage means for storing information to be sent to the calling party when a call is received in an absent mode in a digital code; It has a signal converting means for converting the stored digital code information into a signal format to be transmitted to the B channel of the ISDN network, and the calling party network identifying means identifies that the calling party's subscriber telephone network is an ISDN network. When it is identified, it creates inter-user information including the digital code information stored in the storage means and transmits it to ISDN when the line is released.
When the user-to-user information is sent to the D channel of the ISDN network along with the call control message sent to the network, and the calling party network identification means identifies that the calling party's subscriber telephone network is an analog network, In response to the automatic response, the B channel of the ISDN network is completed, and the digital code information stored in the storage means is converted into a signal form for B channel transmission by the signal conversion means, and the ISDN network is completed.
A guidance system for unannounced calls that is sent to the B channel of the network. 2. In the unattended call notification method according to claim 1, the storage means is a memory for storing an unattended call notification message, and the unattended call reception information that is sent to the ISDN network at the time of unattended call reception is an unattended call notification message. Guidance method for 3. In the guidance system for missed calls according to claim 1, the telephone device further includes a preset password and an IS
It has a means to check the PIN number sent from the DN network,
In addition, the storage means stores the ISDN information when receiving a call from an ISDN network subscriber.
This is a storage memory for the calling party number sent from the DN network, and when the PIN sent at the time of unattended call reception is correct, the information sent to the ISDN network is the calling party number. Guidance method for 4. The guidance system for missed calls according to claim 1, wherein the network identification information is a progress identifier. 5. The guidance system for missed calls according to claim 1, wherein the network identification information is the presence or absence of a calling party number.