JPH0341849A - Telephone system for isdn - Google Patents

Abstract

PURPOSE:To offer the telephone system rich with multi-function and excellent in operation convenience to the user by sending voice recording or prescribed recording message to other call while being in communication to one call. CONSTITUTION:When a person C uses a keyboard 104 to make dialing to call a person A, the telephone system sends a SET UP message to a network. When a telephone system of the person A receives the SET UP message from the network, since a B1 channel is busy with the talking with a person B, an ALERT message signal including the assignment of a communication channel to a channel B2 is sent to the network. The telephone system of the person C recognizes the ALERT message by a signal control circuit 101, then a call tone signal 30 informing the call by a called party is sent. When the person A does not want to make a call with the person C, key entry of the keyboard 104 is applied to send a changeover command so as to connect a voice recording memory 102 to a B2 channel reception signal 107 and a voice reply memory 103 to a B2 channel transmission signal 109.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an ISDN network that can be connected to an ISDN network.
The present invention relates to a telephone device for use in a telephone.

(Prior art) Fig. 5 is a diagram showing a digital telephone set for ISDN shown in, for example, Industrial Technology Seminar B-4903 "Digital Service Integrated Network/ISDN Basic Technology". It is a transmitting and receiving circuit for connection, and consists of a transformer, a receiver integrated circuit, a driver integrated circuit, etc. (2) The received frame signals from the ISDN network are two 64kb/s B channel signals and 16kb
/SL: A received frame signal decomposition unit that decomposes the signal into one D channel signal. (3) is 64kb/s B channel signal 2
A transmission frame signal assembling unit assembles the main frame and one 18 kb/S D channel signal as a transmission frame signal to the ISDN network. (4) is a D channel control section that analyzes and sends out D channel signals, and a D channel control section that analyzes and sends out D channel signals;
Channel selection is performed and the decoding device (5)/encoding device (
6) 81 - Sends instructions to the reception frame signal disassembly unit (2) and transmission frame assembly unit (3) as to which B2 channel should be connected, and generates a signal (30) such as a ring tone when a call is received. A signal (32) that receives and analyzes the dial number signal (31) from the dial (lO), and displays the calling number, charge display, etc. on the display unit (11).
) A signal control circuit consisting of an application control section that generates a signal. (5) is the received pulse signal of the D channel signal (
25) into a received electrical signal (27) representing sound. (6) is an encoding device that converts a transmitted electrical signal representing sound into a transmitted pulse signal (26) of a B channel signal. (7) is a receiver that converts the received electrical signal (27) into voice. (8) is a transmitter that converts voice into a transmitted electrical signal (28). Signal (21) is a received signal from the ISDN network. Signal (22) is a transmission signal to the ISDN network. Signal (23) is a received signal in which two B channel signal trees and one D channel signal tree are multiplexed. The signal (24) is a transmission signal in which two B channel signal trees and one D channel signal tree are multiplexed. Signal (29) is D
Transmission and reception of channel signals. (9) is a sounder that converts a signal (30) such as a ring tone when a call is received into sound; (11) is a display unit that displays information such as a dial number.

Next, the operation will be explained. As an example, FIG. 6 shows a signal connection procedure for a circuit-switched call in an ISDN telephone device that supports only one B-channel signal. This shows a case where person A makes a call to person B, connects the B channel signal, and then person C makes a call to person A. person A is person B
In order to make a call to the user, dial the number of connected people B using the dial (10). When the manual dialing is completed, a SET UP message signal is sent from the signal control circuit (4) to the transmission frame assembly section (3), and sent to the ISDN network via the transmission/reception circuit (1). In ISDNI, SET
Analyze the dialed number of the other party in the tlP message,
Send a SET tlP message to person B's ISDN telephone device. Person B's ISDN telephone device receives the reception signal (21) from the ISDN network using the transmitting/receiving circuit (1),
The received frame is analyzed by the signal control circuit (4) via the received frame decomposition unit (2) and recognized as a SET LIP message °. The signal control circuit (4) sends a ringing tone signal (30) to the sounder (9) to prompt that there is an incoming call, and
Sends a ^LERT message signal to the ISDN network indicating that the destination is currently being called. person B's I
In the SDN telephone device, when the signal control circuit (4) recognizes the ALERT message, it sends out a ring tone signal (30) to notify that the multiplexing call side is making a call. Person B
When person B picks up the handset or otherwise indicates a call connection response, person B's ISDN
The signal control circuit (4) of the ISDN telephone equipment of person A sends out an ONN message signal indicating that the called party has answered. When the ISDN telephone equipment of person A recognizes the C0NN message signal, the B channel is connected. The communication becomes live and busy.

Next, in order to place a call to person A, person C inputs the dial using the dial (10) as described above, and selects SET U.
Sends the P message to the ISDN network. However, person A's I
Since the SDN telephone device is busy and supports only one B channel, it cannot be connected to Person C's ISDN telephone device, so it sends a REL-00M message indicating channel disconnection to the ISDN network. When the REL message, which is a channel disconnection completion notification, is sent from the IS[IN network, the ISDN telephone device of person C recognizes the REL message, displays the other party's user busy on the display section (11), and
A REL-00M message is sent to the N network.

[Problem to be solved by the invention]

As described above, conventional ISDN telephone equipment can use two B-channel signals, but when one B-channel signal is used to talk to the other party, other B-channel signals may cause other people to make a call. Even if you call, you cannot call the other party, and the other party cannot be notified that the call has been made.
There were problems in that it was necessary to make multiple calls, and even in cases of emergency, it was not possible to communicate with the other party.

This invention was made to solve the above-mentioned problems, and an object thereof is to obtain an ISDN telephone device that can appropriately switch and select one of two B channel signals of an RSDN network. .

[Means to solve the problem]

The ISDN telephone device according to the present invention transmits and receives voice signals by selecting one of two B channel signals that are mutually communicated between the calling side and the called side through the I5I)N network. A handset/receiver, a voice recording memory for recording voice from a voice amplification signal, a voice response memory for storing a predetermined message for responding to a calling party through a voice transmission signal, and when one of the above B channels is used, the other When a voice signal from the B channel is received, the user can either switch the B channel in use to the other B channel and make a call, or manually switch the voice reception signal from the other B channel or channel to the voice recording memory, or The apparatus is provided with a switching means for switching and outputting the voice response memory contents into a voice transmission signal.

[Effect]

The ISDN telephone device according to the present invention allows each B channel to be switched at the user's discretion, so that only one B channel can be switched.
If you are communicating using a channel and receive a call from another B channel, if it is the person you want to connect to, switch the handset to the other B channel and send and receive voice signals; If so, a voice response is added to the voice signal transmitted by the B channel, or the received voice signal is captured and voice recorded.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings. 1st
In the figure, (1) is a transmitting/receiving circuit for connecting to ISDN'M4, and (2) is a transmitting/receiving circuit for connecting to ISDN'M4, and (2) is a transmitting/receiving circuit for connecting to ISDN'M4. Channel received signal (107
) and a received frame decomposition unit that decomposes the 16 kb/S D channel received signal into one tree. (3) is 2 B of 64kb/S
Channel signal, B1 channel transmission signal (tOa) and 82
Channel transmission signal (109) and 16kb, /S D
A transmission frame assembling unit that assembles one channel transmission signal as a transmission frame to the ISDN network. (5) is a decoding device that converts the received pulse signal (110) of the B channel signal into a received electrical signal (27) representing the intensity of the sound. (6) is an encoding device that converts a transmission electrical signal (28) representing the intensity of sound into a transmission pulse signal (112) of a B channel signal.

(7) is a receiver that converts the received electrical signal (27) into voice. (8) is a transmitter that converts voice into a transmitted electrical signal (28). (102) is a voice recording memory that stores encoded voice data from the other party. (103) is a voice response memory that stores voice data for responding to the other party. (
100) is the B1/B2 channel transmission/reception signal (106)
, (107), (108), (109) and decoding device (5), voice recording memo', l (102)
, an encoding device (6), a voice response memory (103), etc., can be arbitrarily switched by a switching instruction signal (114) from a user. (101) is a D channel signal control unit that analyzes and sends out the D channel signal (29), and a switching device (101) that generates a ringing tone signal (30) and
The key code signal (104) from the keyboard (104) is used to instruct switching to
115) and generates a display signal (116) for displaying the caller number, fee display, etc. on the display section (115).

Next, the operation will be explained. As in the conventional example, person A is person B.
This shows a case where person C makes a call to person A after making a call to person A and connecting the B1 channel. In order to make a call to person B, person A dials the number of connection party B using the keyboard (104). The signal control circuit (10
The SET IJP message signal is sent from 1) to the transmission frame assembling unit (3), passes through the transmission/reception circuit (1), and then is sent to the IJP message signal.
It is sent to the SDN network. SET LIP on 15ON network
Analyze the destination dial number in the message and send a SET tlP message to person B's ISDN telephone device. In the ISDN telephone device that arrived in Japan, the reception signal (21) from the ISDN network is received by the transmission/reception circuit (1), passed through the reception frame disassembly section (2), and analyzed by the signal control circuit (101), and then sent as a SET tlP message. I recognize that. The signal control circuit (101) sends a ringing tone signal (30) to the sounder (9) to remind the sounder (9) that there is an incoming call, and also sends an ALERT message signal to the ISDN network to indicate to the caller that a call is currently being made. Send to. This ALE
In the RT message, person A responds to a call from person B.
Also included is a message to the effect that the B1 channel will be assigned as the communication channel between the ISDN telephone device and ISDNwlU. In addition, in this extra-large A ISDN telephone device, the handset (7) and decoding device (5) are connected to the 81-channel reception signal (106), and the transmitter (8) and encoding device (6)
The signal control circuit (101) sends a switching instruction signal (114) to the switch (100) so as to connect the B1 channel transmission signal (108) to the B1 channel transmission signal (108). Person B's ISDN
In telephone equipment, the ALERT message is sent to the signal control circuit (
101), the multiplexing call side sends out a ringing tone signal (30) to notify that a call is being made. When person B indicates a response to call connection, such as by picking up the receiver, the signal control circuit (101) of person B's ISDN telephone device sends out a C0NN message signal. C0 on person A's ISDN telephone device.
When the NN message signal is recognized, the B1 channel is connected and the communication state becomes busy.

Next, when person C dials in using the keyboard (104,) as described above to place a call to person A, I
The SDN telephone device sends a SET IIP message to the ISDN network. Person A's ISDN telephone device is l5D.
IIIIII! When I receive the SET UP message from , the B1 channel is 82 because it is being used for a call with person B.
AL containing a message to allocate a communication channel to channel 82 in order to communicate with person C on the channel
Sends the ERT message signal to the ISDN network. When the signal control circuit (101) in the TSDN locking device of person C recognizes the ALERT message, it sends out a ringing tone signal (30) to notify that a call is being made on the multiplexing call side.

When person A wants to talk directly with person C, he connects the receiver (7) and decoding device (5) to the B2 channel reception signal (107).
In addition, the keyboard (10
The signal control circuit (101) instructs the signal control circuit (101) using the key 4), and the signal control circuit (101) sends a switching instruction signal (114) to the switch (100) to perform switching.

Since nothing can be heard on this sunny day B, the 81 channel transmission signal (108) is stored in the voice response memory (103).
! Subsequently, some sound may be generated. Also, person A is person C
If you do not want to talk directly with the person, use voice recording memory (1
02) to the 82 channel reception signal (107), and the voice response memory (103) to the B2 channel transmission signal (109).
), the switching instruction may be sent by manually pressing the keys on the keyboard (104). When the response to person C is ready, person A's signal control circuit (101) is set to C0NN.
Send a message. C on person C's ISDN telephone device.
: When the ONN message is recognized, the B2 channels are connected to each other and the communication state becomes busy.

In addition, in the above embodiment, one side is used for calls using a handset, and the other is used as an answering machine using a voice response/recording memory. Person A can switch the switching device (100) at any time to connect the received signal and the 82 channel transmission signal, thereby making a three-way telephone call between persons A, B, and C. Furthermore, the same thing can be done with persons B and C. If you go, you will receive a multi-party phone call. At this time, it is assumed that the handset (7) and decoding device (5) of the ISDN telephone of the person switching over can be arbitrarily connected to the 81 channel reception signal and the B2 channel reception signal.

(Effects of the Invention) As described above, according to the present invention, the switching means for appropriately switching between two B channels is provided, and it is possible to appropriately respond to multiple calls, and while one call is being made, the other Since a voice recording or a predetermined recorded message can be played in response to a call, it is possible to provide an ISDN telephone device that is easy to use for the user and is highly versatile.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an ISDN telephone device according to an embodiment of the present invention, FIG. A)
, (B) is a flowchart of the call control procedure and incoming call control procedure of the device of this embodiment, and FIG.
Figure 5 is a configuration diagram of a conventional ISDN telephone device, Figure 6 is a diagram showing the signal connection procedure between persons A, B, and C in a conventional circuit-switched call, and Figure 7 is an explanatory diagram of the diagram. (A), (B)
1 is a flowchart of a call control procedure and an incoming call control procedure of a conventional device. In the figure, (1) is the transmitting/receiving circuit, (7) is the receiver, (
8) is a transmitter, (21) and (23) are received signals,
(,22), (24) are transmission signals, (100) is a switch, (102) is a voice recording memory, (103) is a voice response memory, (106) is a B1 channel reception signal,
(107) is the B2 channel received signal, (108) is the B2 channel received signal
1 channel transmission signal, (109) is a B2 channel transmission signal. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] The calling and called parties communicate with each other through the ISDN network.2
ISDN equipped with a handset that selects one of the main B channel signals and transmits and receives audio signals
a voice recording memory for recording voice from a voice reception signal; a voice response memory for storing a predetermined message for responding to a calling party through a voice transmission signal;
If you receive an audio signal from the other B channel while using one of the B channels mentioned above, either switch the B channel in use to the other B channel and make a call, or
1. An ISDN telephone device comprising a switching means for switching and inputting a voice reception signal from a channel to a voice recording memory, or switching and outputting a voice response memory content to a voice transmission signal.