JPH0750729A - Telephone set - Google Patents

Abstract

PURPOSE:To provide the telephone set convenient for a user to select the line of a low call tariff by deciding the line according to the judgement of the user at every time by reporting time for the line call tariff of a certain telecommunication company to exceed that of the other telecommunication company to the user before the selection of the line. CONSTITUTION:Dial data inputted by a dial key 11 are stored in a CPU 12. While referring to a tariff list memory 13, the CPU 12 gets call tariff data for each line between a present station and the destination of dialing. As the result of calculating these call tariff data, when the line of the lowest call tariff is changed corresponding to calling time, the CPU 12 displays that calling time on a display device 14. The user of the telephone set compares the indication of the display device 14 with its own estimated calling time and selects the line to be used. In this case, when a line select button 15 is pressed, the line of a telecommunication company A is selected and when a line select button 16 is pressed, the line of a telecommunication company B is selected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone using a plurality of lines.

[0002]

2. Description of the Related Art Conventionally, when selecting one of a plurality of lines, it has a LCR function of dialing a line selection number prior to dialing a call destination or automatically transmitting a line selection number. I was using a telephone.

The LCR function internally stores a charge table for a plurality of lines, compares the call charges up to the dial destination within a preset call time, and selects the line with the lowest call charge among them. It is a function to select and automatically send a selection signal of the selected line.

An example of a block diagram of a telephone having an LCR function is shown in FIG.

[0005]

[Problems to be Solved by the Invention] However, LCR
When using the function to select a line, it was not always possible to select the cheapest line.

When the actual call time is significantly different from the comparison in the call time preset by the LCR function, L
Call rates may be higher on the line selected by the CR function as a result.

An example of this is shown in FIG. FIG. 3 is a graph showing the relationship between the call duration and the call charge for the dial destination. In FIG. 3, a graph 31 shows a call charge when the line of the telecommunications carrier A is used, and a graph 32 shows a call charge when the line of the telecommunications carrier B is used.

When graph 31 and graph 32 are compared,
At the time of t1, the graph 31 is cheaper than the graph 32, but the same charge is made at t2, and the graph 32 is cheaper at t3.

The call time preset by the LCR function is t
If the number is 3, the telephone with LCR function automatically selects the line of the telecommunications carrier B. However, if only t1 is actually used, the line is selected when the telecommunications carrier A is selected. In comparison, there was the inconvenience that the call charge would be high.

Further, the conventional LCR function telephones often do not have a charge display, and even if an expensive line is automatically selected, the user cannot notice it. Therefore, the user used the LCR function telephone while wondering whether a really cheap line was selected.

[0011]

Therefore, in the telephone of the present invention, a charge table for a plurality of lines is stored internally, and in a telephone having a function of referring to the charge table, the call charge to the dial destination is changed depending on the call time. If the cheapest line is different, a method of notifying the user of the call time until the line with the cheapest call charge becomes a different line, and a method of selecting the line at the user's will And a means for automatically transmitting a selection signal for the selected line.

[0012]

1 shows an example of a concrete block diagram of a telephone of the present invention, and FIG. 2 shows an example of an external view of the telephone of the present invention.

The dial data input to the dial key 11 is stored in the CPU 12. The CPU 12 refers to the charge table memory 13 to obtain call charge data for each line between the own station and the dial destination. As a result of calculating the call charge data by the CPU 12, if the line with the lowest call charge changes depending on the call time, the call time until the change is displayed on the display device 14.

The user of the telephone selects the line to be used with reference to the display on the display device 14. The line is selected by pressing the line selection button 15 and the line selection button 16. When you press the line selection button 15, the telecommunications carrier A
Is selected and the line selection button 16 is pressed, the line of the telecommunications carrier B is selected. CPU12
Controls the line control circuit (NCU) 17 so as to send a line selection signal to the selected line, and sends a line selection signal and a dial signal to the general subscriber line 18.

In FIG. 3, the line of the telecommunications carrier A is cheaper than the line of the telecommunications carrier B at the time t1 when the call time is short, but the same charge is applied at the time t2, and the telecommunications carrier B at the time t3. The line is cheaper. Display device 14
Indicates the call time of t2.

When the line with the lowest call charge is constant at any call time, the cheapest line is unconditionally selected without waiting for the selection of the line selection buttons 15 and 16 and the line selection signal is given. Send a dial signal.

Display device 14 used in the telephone of the present invention
FIG. 4 shows an example of the display contents of ". With reference to this, the dialing procedure / line selecting procedure as seen from the user will be described.

The display device 14 is a backlight type transmissive liquid crystal display, and the backlight is off when the receiver is on-hook (state a).

When the handset is lifted, the backlight turns on and the display device 14 becomes bright (state b).

When the dial number is input by the dial key 11, it is displayed (state c).

When it is determined by the telephone of the present invention that the line with the lowest call charge changes according to the call time according to the dial number, the call time until the change is displayed on the display device 14 (state d). ).

This means that if the call ends in less than the displayed call time, the call charge will be the same or cheaper when the line of the telecommunications carrier A is selected. On the contrary, if the call time is longer than the displayed time, it is shown that the call charge becomes cheaper when the line of the telecommunications carrier B is selected.

The input of the dial key 11 is displayed as it is pressed (state e).

The user of the telephone displays the display on the display device 14,
Select the line to use by comparing it with the expected call time. The line is selected by pressing the line selection button 15 and the line selection button 16. When the line selection button 15 is pressed, the line of the telecommunications carrier A is selected, and when the line selection button 16 is pressed, the line of the telecommunications carrier B is selected (state f).

When the dial key is input in 9 digits or more and the line selection button is not pressed for 10 seconds, the cheap line is automatically selected with the set talk time like the normal LCR function.

A case where the line of the telecommunications carrier B is selected by pressing the line selection button 16 from here will be described. When the line selection button 16 is pressed after dialing the telephone number of the person to be called, the line selection signal of the telecommunications carrier B and the dial signal input by the dial key are transmitted.

When the other party responds to the call and the call is started, the selected telecommunications carrier name B, the call time and the call charge are displayed (state g).

If the call time exceeds the time displayed in (state d), in addition to the call time and the call charge, how much the call charge is lower than when the telecommunications carrier A is selected Is displayed. In addition, the telecommunications carrier B is selected, and in order to display that the call time has become cheaper, a display of Tokutoku time is displayed (state h).

When the call ends and the handset goes into the on-hook state, the display before the on-hook is held for 10 seconds, then the backlight is turned off, and the state returns to (state a).

Next, the case where the line selection button 15 is pressed to select the line of the telecommunications carrier A will be described. After dialing the telephone number of the person you want to call, line selection button 1
When 5 is pressed, the line selection signal of the telecommunications carrier A and the dial signal input from the dial key are transmitted.

When the other party responds to the call and the call is started, the selected telecommunications carrier name A, the call time, and the call charge are displayed (state i).

When the call ends and the handset goes off-hook, the display of (state h) is held for 10 seconds, then the backlight is turned off, and the state returns to (state a).

When the telecommunications company A is selected, the charge difference with the line of the telecommunications carrier B is not displayed.

[0034]

By using the telephone of the present invention, before selecting the line, the time t2 before the line call charge of the telecommunications carrier A exceeds the line call charge of the telecommunications carrier B in the above example. To the user, and the user can decide the line at that time by the judgment at that time.
It is possible to solve a problem such as a CR function in which a line with a high call charge is selected without the user's knowledge.

[Brief description of drawings]

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

FIG. 2 is a specific external view of the telephone of the present invention.

FIG. 3 is a graph showing a relationship between a call time and a call charge for a dial destination.

FIG. 4 is a diagram showing specific display contents of a display device used in the present invention.

FIG. 5 is a block diagram of a telephone having an LCR function.

[Explanation of symbols]

 11 ... Dial key 12 ... CPU 13 ... Charge list memory 14 ... Display device 15 ... Line selection button 16 ... Line selection button 17 ... Line control circuit (NCU) 18 ... General subscriber line

Claims (2)

[Claims] 1. A telephone having a function of internally storing a call charge table of a plurality of telecommunications carrier lines (hereinafter referred to as "line") and referring to the call charge table, depending on a call time, reaches a dial destination. If the line with the lowest call rate is different, a means to notify the user of the call time until the line with the lowest call rate becomes a different line, and a means to select the line at the user's will And a means for transmitting a selection signal for the selected line. 2. A function of storing a charge list of a plurality of lines inside, referring to the charge list, and automatically or manually selecting the cheapest line at a preset call time, and a function of selecting the selected line. A telephone having a function of transmitting a selection signal, comprising a means for notifying a user of a difference between a call charge of a selected line and a call charge of another line.