JPS58146165A - Calling system of digital telephone set - Google Patents

Abstract

PURPOSE:To obtain various information before response, by providing a control signal for a selection signal received/transmitted between a telephone set and an exchange at calling, and changing the sound volume or tone of the incoming telephone set. CONSTITUTION:Through the dial operation of a digital telephone set 1, a selection signal and a control signal representing name of a caller and emergency are transmitted to an exchange 4 at incoming side via an exchange 3 at calling side. The exchange 4 interpretes the received dial signal, selects the line of a telephone set 1' of incoming side, and transmits a call signal and the control signal via a multiplex separation circuit 2'. The telephone set 1' compares data set by a called party in advance with the transmitted control signal, the sound volume and tone are changed when they are coincident to go a sounder. Thus, the called party discriminates whether the call is an incoming call from a specific subscriber before response or not, and whether the call is the incoming call having high urgency.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a calling system for a digital telephone that uses digital signals as signals exchanged between a telephone and an exchange.In the conventional signaling system for a digital telephone, when making a call, The control signal for incoming and outgoing calls sent from telephone number i to the exchange is terminating 4MII.
It only sends out a selection signal, which is the subscriber number of II, and if a control signal other than the selection signal is sent out, the exchange is configured so that it does not accept the call. Even if a double/spare left signal path is configured between the exchange and the called telephone, only the subscriber data such as the calling party's number (calling number) and terminal type that are registered in the calling switch in advance is available. It was not possible to transmit signals to the telephone on the nursing side, and it was not possible to transmit signals that varied variously each time a call was made, such as the name of the calling party, the name of the called party, and the degree of emergency.

Therefore, when receiving a call, the subscriber: (1) Even if the calling party number is sent, if the caller made the call from a public telephone or other line, the subscriber must go off-hook to confirm the identity of the other party. The caller cannot be known.

(2) When the same telephone is used by multiple operators, the called party cannot know the called party desired by the caller unless he is the one who initiated the off-hook call.

(3) Even if the incoming call from the called provincial line caller is highly urgent, it cannot be distinguished from a normal incoming call.

The called party may not be able to decide whether or not to answer the call if necessary, or if the caller answers and the call is to someone other than a friend, the called party may have to relay the call. There are some drawbacks.

The present invention has the purpose of fundamentally eliminating such conventional drawbacks, and adds signals other than selection signals to signals sent and received between telephones and exchanges and between exchanges and O-links when making and receiving calls, The receiving phone sets the ringer volume based on the added signal.

The present invention provides an extremely effective calling system for a digital telephone in which at least one of the tone color and tone color can be varied.

Hereinafter, the present invention will be explained in detail with reference to figures showing examples.

Figure 1 is a network configuration diagram of a telephone circuit, where 1.1' is a digital telephone, 2.2' is a multiplexing/demultiplexing device for multiplexing or decomposing voice signals and control signals, and for transmitting subscriber lines. circuit, 3iL is the originating exchange, 4 is the terminating exchange,
5.5' is a control circuit L6 that selects a line based on the selection signal sent from the spinning machine and instructs the transfer of the control signal to the signal control circuits of the exchanges 3 and 4, which will be described next.
' assembles the control signal from the telephone 1 and the subscriber data signal, and sends the assembled signal to the control circuit 5.'. A signal control circuit has a function of transferring the signal to the destination exchange 4 according to an instruction from S', a storage device 1 for storing subscriber data, and an sFi paging signal generation circuit. Note that dotted lines in the figure indicate the flow of control signals.

FIG. 2 is a block diagram showing an example of the configuration of the digital telephone 1 in Figure 1, in which 9 is a subscriber line, 10 is a hook switch, 11 is a transmission termination section, 12 is a service line termination section,
13 is a signal generation circuit with an internal memory that generates signals corresponding to the operations of the keyboard, function buttons and dials; 14 is a signal reception circuit; 15 is a telephone call circuit; 1@ is the signal generation circuit. 1. A comparison circuit that stores and compares the output signal from the signal receiving circuit 14 with the stored signal; 17 A ringing circuit that sends out a ringing signal based on the output signal from the comparison circuit 16; 11B, a keyboard;
18 is a dial, 20 to 21 are function buttons, and 2
0 is a send button, 21 is a memory setting button for setting the memory in the signal generation circuit 13, 22 is a memory continuous button, and 23 #i is a storage area for setting a rounded storage area for storing the signal from the signal generation circuit 13. Settings button, 24#
i Volume setting button to specify the volume of the ringtone, 2s is the tone setting button to specify the tone of the ringtone, 2@ is the sounder,
27 is a transmitter, and 28 is a receiver.

Note that FIG. 3 is a flowchart showing an example of the operating procedure when the digital telephone 1 makes a call, and FIG. 4 is a flowchart showing an example of the operating procedure when setting the volume and tone when receiving a call.

Next, the transfer operation of control signals when making and receiving calls will be explained.

W, In figure 1, dial 1g of digital telephone 1
operations and predetermined order.

Selection signals and caller name generated and assembled in response to keyboard operations based on number of digits.

The control signal indicating the name of the called party and the degree of emergency is sent to the multiplexing/separating circuit 2.
The control signal is separated in the same circuit 2 and sent to the signal control circuit 6.

In addition, in the signal control circuit 6, the selection signal is exchanged 41
! 30 to the control circuit 5, and also accesses the storage device T to read out the number of the calling subscriber (caller number),
The read subscriber number is inserted after the one-selection signal sent to the control circuit 5 first, and then the selection signal and the calling party number 2 are sent to the signal control circuit 6' of the destination exchange 4 in accordance with instructions from the control circuit 5. Caller name.

Transfer a control signal indicating the degree of urgency.

At this time, the control circuit 5 decodes the selection signal sent from the signal control circuit 6, selects the communication path for the audio signal and the control signal, and instructs the transfer of the control code.

Next, the signal control unit 6' of the destination exchange 40, which has received the control signal transferred from the signal control 1iilliI of the originating exchange 3, sends the received selection signal to the control circuit 5' of the exchange 4 and generates a calling signal. Access the circuit $ and insert a calling signal in place of the selection signal.

On the other hand, the control circuit 5' decodes the received 9-dial signal and selects the line for the receiving telephone 1', and also removes the selection signal and inserts a ringing signal to the signal control circuit 6'. The control signal is controlled to be sent to the receiving telephone 1' via the multiplex separation circuit 2'.

Therefore, a control signal is sent from the calling telephone 1 to the receiving telephone 1' as a predetermined friendship number and number of digits.

Next, the operation of the digital telephone ml,.1'0 will be explained.

In FIG. 2, when the hook switch 10 is turned on at the time of making a call, the transmission termination section 11 extracts the power necessary for the operation of the telephone using the line current from the one subscriber line 9, and
This circuit automatically equalizes the characteristics of the subscriber line 9 and establishes synchronization between the exchanges 3 and 4 and the telephones 1 and 1'. It is a circuit that performs speed conversion between the signal transmission speed on the subscriber line 9 and the effective speed of voice signals and control signals. As shown, the admission examination number is entered on the pushbutton dial 19, and then, using the keyboard 18, the calling party's name, the called party's name, and the degree of urgency are entered in a predetermined number of digits using the keyboard 18. Next to this, call button 2
When 0 is pressed, a signal corresponding to the subscriber number 2, calling party name, called party, and degree of urgency is created in the signal generation N path 13, sent to the line termination section 12, and then sent to the transmission line termination section. 11 to the exchange 3.

In addition, variable control of the ring tone when a call is received is such that the receiving side sets the control signal and the tone and tone of the ring tone corresponding to the control signal in advance, and is controlled from the exchange 4!
14I! This is done by comparing the signal and the control signal set by the call 11Ill.

In other words, the operating procedure for setting the volume and tone of the ringtone is shown in the fourth @9. First, by operating the storage area setting button 23, data on the tone and volume is transferred to the storage area in the comparison path 16. setting, and then registering the control signal on the keyboard 18 or the pushbutton dial 1s. in this case,
As a control signal, you may specify any of the calling party number 2, calling party, called party name, degree of emergency, etc.; (Enter blank blank).

Next, the volume setting button 24 and tone setting button 25 are operated to set the volume and tone when the control signal corresponding to the data registered in the storage area of the comparison circuit 16 is sent from the exchange 4.

When a call is received, the signal receiving circuit 14 receives the control signal from the exchange 4, decodes it, and sends it to the comparing circuit 1@. Compare with the nine control signals sent,
Only when there is a match, press the volume setting button 24.
The ringer circuit 17 creates a ringer signal according to the volume and color set by the tone setting button 25, and the sounder 2
Ring @.

However, when two or more of the control signals match,
The sounder 26 operates according to the order in which the control signals are sent, and the sounder 26 is made to sound based on the control signal that matches first.

Note that the comparison circuit 1@ may be configured such that a priority order is provided in the order in which the control signals are registered in the comparison circuit 16, and a ringing tone signal is selected in accordance with this order.

Further, when the control signal does not match any data, the comparison circuit 16 sends a signal for sending out a normal ringing tone signal to the ringing tone circuit 1T.
At this time, the ringing tone circuit 11 creates a normal ringing tone signal.

When making a call, if it takes a long time to press the call button after going off-hook and inputting the selection signal 9, the calling party's name, called party's name, and level of urgency, the exchange 3 will time out. If there is a possibility that the control signal from the telephone 1 will not be accepted, operate the memory setting button 21 before going off-hook, and then press the dial tS
Then, by operating the keyboard 18, the control signal is stored in the memory in the signal generation circuit 13, followed by off-hook, and the control signal is read by operating the memory read button/22, and then by pressing the call button. The call may be made by operating 2G.

However, the configurations in Figures 1 and 2 can be arbitrarily selected depending on the conditions, and in Figures 3 and 4, steps can be replaced or steps can be omitted depending on the situation. The present invention can be modified in various ways.

As is clear from the above explanation, according to the present invention, when a call is received, the calling party number, the calling party's name, and the called party's name are input.

A control signal indicating the degree of emergency, etc. is sent to the called phone, and the called phone compares the pre-registered data with the control signal sent from the exchange and determines the ringer volume and color. (11) Before answering, the called party can determine whether the call is from a pre-registered specific subscriber number (9) or not (9). Can be done.

(21) If the same telephone is used by multiple operators, the ring tone can be changed for each called party, so the caller can know the desired called party before answering.

(3) Since it is possible to know before answering whether or not the incoming call is highly urgent, it is possible to decide whether to answer or not as necessary.

It is possible to obtain the effects that are appropriate for the operational purpose of both physical and digital devices.

[Brief explanation of the drawing]

FIG. 1 is a network configuration diagram of a telephone circuit showing an embodiment of the present invention, FIG. 2 is a block diagram showing an example of the configuration of the digital telephone in FIG. 1, and FIG. 3 is an operational procedure for the digital telephone when making a call. Figure 4 is a flowchart illustrating an example of an operation procedure for setting the volume and tone of a ringtone. 1.1'...Digital telephone, 2.2'...
Multiplexing/separating circuit, 3... Originating side exchange, 4...
Terminating side exchange, s, s' threat... control circuit, 6.6'.
...Signal control circuit, 7...Storage device, 8...
Calling signal generation circuit, 9... subscriber line, 10...
・Hook switch, 11 Transmission termination section, 12...Line termination section, 13...Signal generation circuit, 14...Signal reception circuit, 15...Telephone circuit, 16...Φ・Comparison Circuit, 11... Ringer circuit, 18 Keyboard, 19.
・・Life dial, 20・・am call button, 21・・・
・Memory setting l button, 22・-Content・Memory read button, 23・Φ-・Storage area setting button, 24・・Volume setting button/, 25・・=Tone setting button, 26−・
・Fist Kunda, 27'-1...Transmitter, 28...Kiku・
telephone receiver. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Scope of Claims] In a digital telephone that uses digital signals as control signals and voice signals sent and received between the telephone and an exchange, there is provided a signal receiving circuit for decoding control signals sent from the exchange, a dial, a keyboard, and functions. button and the dial. a signal generation circuit that generates a signal corresponding to the operation of a keyboard and a function button; a comparison circuit that stores the output of the signal generation circuit and compares the output signal from the signal reception circuit with the stored signal; and a ringer circuit that sends out a ringer signal based on the output signal from the comparison circuit, and at least one of the volume and tone of the ringer is varied in response to a control signal sent from the exchange when a call is received. A calling method for digital telephones featuring