JPH0678080A - Digital telephone set - Google Patents

Abstract

PURPOSE:To store the unit price of a charge and to display a charge amount on during a call. CONSTITUTION:This digital telephone set is constituted of an ISDN interface part 2 connected to an ISDN line, a codic 3 for mutually converting an analog signal and a digital signal, a hand set part 4 for transmitting/receiving calls, a storage part 5 for storing the unit price of a rate and a telephone number, a timer 6 for counting call time, a system control part 7, a display part 8 for displaying a call charge or the like, a rate calculating part 9 for calculating the unit price of the rate based upon a rate obtained by charge information service and the counted call time, and a dialing part 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital telephone connected to ISDN (Integrated Services Digital Network).

[0002]

2. Description of the Related Art By digitizing a network so that it is composed entirely of digital transmission lines and a digital exchange, and by adding all information to this by exchanging digital signals, the type of information, such as voice Since it is sufficient to handle the same digital signal regardless of whether it is data, facsimile, image, etc., what provides a plurality of communication services in the same manner in one network is the so-called ISDN. In ISDN, one of the service additional functions that can be used without additional charge is a charge information notification service. The content is a service that ISDN Net calculates and notifies the charge from the call time and call destination. However, in the charge information notification service, the charge can be known only after the call ends, and the charge during the call cannot be known.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a digital telephone capable of displaying a midway charge during a call.

[0004]

In order to achieve the above object, a first call means for connecting to an ISDN, transmitting and receiving a digital signal, processing the digital signal, and making a call; It consists of a second call means that displays the midway charge

[0005]

With the above-mentioned structure, the first calling means inputs the other party's number, connects the line, and makes a call.
The second call means identifies the other party, measures the line connection time, and displays the midway charge based on the unit price and the line connection time.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The digital telephone of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram of a digital telephone according to the present invention. A digital telephone 1 is connected to an ISDN line and sends and receives a digital signal 11. Two
Is an ISDN interface such as a basic interface connecting to two information channels (B channel) and one control channel (D channel).
A codec 3 mutually converts a digital signal and an analog signal. Reference numeral 4 denotes a handset unit including a speaker and a microphone for making a voice call. Reference numeral 5 is a storage unit that stores the unit price of the call together with the other party's number. Reference numeral 6 is a timer for measuring the call duration after the line connection and the call duration after the call is terminated. Reference numeral 7 is a system control unit for controlling the system such as identification of the other party's number, call, charge calculation and display.
Reference numeral 8 is a display unit for displaying charges and the like. 9 is a timer for measuring the call time, and a charge unit price for each destination is calculated from the call charge obtained from the ISDN network and the measured call time, and a halfway charge is calculated from the stored charge unit price and the elapsed time during the call. Is a charge calculation unit for calculating. Reference numeral 10 is a dial unit for dial input.

FIG. 2 shows the contents of the storage unit of the digital telephone according to the present invention. Reference numeral 20 is a partner number, and reference numeral 21 is a unit price stored in pair with the partner number 20.

The operation will be described. FIG. 3 is a flowchart explaining the operation of the digital telephone according to the present invention. Lift the handset, dial the other party's number, and connect to the line (STP1). Check the entered party number by referring to the stored party number (ST
P2). In the case of the other party's number that was called before (NO). The unit price stored in pair with the partner number is read out and displayed (STP3). The call time is integrated, the midway call charge is calculated for each elapsed time, and the display is updated (STP
4). Wait for the end of the call (STP5). If NO, the process returns to STP4. When the call ends (YES), IS
The call charge obtained by the charge information notification service of the DN network is displayed (STP12). The charge unit price is calculated from the call charge and the measured call time (STP13). The calculated charge unit price is stored in the storage area in association with the partner number (STP14). In case of the first partner number (STP
2 is YES), the other party number is stored in a new storage area, and the display is displayed using, for example, a display such as XXXX as the unit price (STP10). The call time is counted (STP15). Wait for the end of the call (N at STP11)
O)). When the call ends (YES), the call charge obtained by the charge information notification service of the ISDN network is displayed (S
TP12). The charge unit price is calculated from the call charge and the measured call time (STP13). The calculated unit price is stored in the storage area in correspondence with the other party's number (STP
14). Incidentally, as the display content, not only the charge during the call but also the time during the call can be displayed. In addition to the call charge unit price, if the service charge and the like are stored together with the other party's number, the total charge can be displayed when the dial Q2 service is used.

[0009]

As described above, a special service contract fee is not required, and it is possible to realize a user-friendly digital telephone that displays charges and call durations during a call and automatically updates the unit price.

[Brief description of drawings]

FIG. 1 is a block diagram of a digital telephone according to the present invention.

FIG. 2 is a diagram showing the contents of a storage unit of the digital telephone according to the present invention.

FIG. 3 is a flowchart illustrating the operation of the digital telephone according to the present invention.

[Explanation of symbols]

 1 Digital telephone 2 ISDN interface 3 Codec 4 Handset part 5 Storage part 6 Timer 7 System control part 8 Display part 9 Charge calculation part 10 Dial part 11 Digital signal 20 Other party number 21 Unit price

Claims (3)

[Claims] 1. A call means for connecting to an ISDN, transmitting and receiving a digital signal, processing the digital signal, and making a call.
A digital telephone comprising: a display means for identifying a call destination and displaying an intermediate charge during a call. 2. The unit price by destination based on the storage means for storing the charge unit price together with the number of the callee, the timer for measuring the call time, the call charge obtained from the network and the measured call time. 2. A charge calculation unit for calculating an intermediate charge from the stored charge unit price and the elapsed time during a call, and a display unit for displaying a charge during a call and the like. Digital phone. 3. The digital telephone according to claim 1, wherein the stored unit price is updated with the unit price calculated after the call.