JPH06121049A - Exchange system - Google Patents

Abstract

PURPOSE:To provide the exchange system which can send exact time data to a telephone set and can display sending time and speaking time. CONSTITUTION:This system is provided with an exchange 1 equipped with a time trunk 5 for normally sending time data and a telephone control part 6 for transmitting the time data from the time trunk 5 through a speech line 16 to a telephone set 2, and the telephone set 2 equipped with a time data reading part 11 for fetching the time data from the speech line 16 and a time display part 12 for displaying time corresponding to the time data provided from the time data reading part 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exchange system including an exchange and a telephone connected to the exchange.

[0002]

2. Description of the Related Art FIG. 3 shows the configuration of a conventional exchange system. In FIG. 3, 21 is an exchange, and 22
Is one of a plurality of telephones accommodated in the exchange 21.
Reference numeral 22a is a handset connected to the main body of the telephone 22.

In the exchange 21, 23 is a control unit for controlling exchange connection of the exchange 21, and 24 is between the telephone 22 and a local line or a dedicated line (not shown) in response to a command from the control unit 23. A call path switch unit (hereinafter, referred to as SW) that forms a call path. Reference numeral 25 designates the telephone 22 and the control unit 2
3 is a telephone control unit connected to the communication path switch unit 24. 26 and 27 are a control bus and a communication path bus.

In the telephone 22, 28 is a voice conversion unit, 29 is a telephone control unit for controlling the telephone 22, and 30 is a telephone control unit.
Is a time display section for displaying the time, and 31 is an operation key section. Reference numeral 32 is a control line for transmitting and receiving control data signals between the exchange 21 and the telephone 22, and 33 is a telephone line for transmitting and receiving call data signals between the exchange 21 and the telephone 22. The telephone control unit 29 of the telephone 22 is connected to the telephone control unit 25 of the exchange 21 by the control line 32, and the voice conversion unit 28 is connected to the telephone control unit 25 of the exchange 21. Next, the operation of the conventional example will be described. Exchange 2 in FIG.
The control unit 23 of No. 1 sends the time data signal to the telephone control unit 29 of the telephone 22 via the control bus 26, the telephone control unit 25, and the control line 32. The telephone control unit 29 causes the time display unit 30 to display the received time data.

As described above, also in the conventional exchange system, the time is displayed on the telephone by the time data signal from the exchange even if the telephone connected to the exchange does not have a clock means such as a real-time clock. Can be made.

In the conventional telephone system,
When the user of each phone wants to know the usage time of that phone for each destination, normally, the exchange side wants to record the call time for each caller's phone number for each caller and to know the call time offline Notifying the applicant.

In order to know the call duration accumulated directly from the telephone in the exchange, a special processing procedure must be provided between each telephone and the exchange in addition to the call connection procedure.

On the other hand, when the telephone set itself has a function of knowing the call time, it is determined whether the telephone call signal is obtained by obtaining the time data signal from the control unit bus or by providing the telephone set itself with a clock for generating the time data. It is also possible to measure the time difference between the generation of the end signal and use it as the call time.

[0009]

However, in the above-mentioned conventional exchange system, since the time data signal is transmitted to the telephone by using the control bus, the time data is transmitted to the telephone with a delay when the call connection is frequently congested. Therefore, there is a problem that the time displayed on the telephone is delayed. Further, there is a problem that the congestion is further promoted by transmitting time data at the time of congestion.

Further, in the conventional exchange system, the time data obtained from the exchange via the control bus cannot be guaranteed to be accurate due to the congestion of the control bus, so that the user of the telephone knows the exact time. Just as there is no guarantee, knowing the exact call time is not guaranteed.

The present invention is intended to solve such conventional problems, and an object thereof is to provide an excellent exchange system capable of displaying an accurate time on a telephone and an accurate call time. is there.

[0012]

In order to achieve the above object, the present invention transmits a clock trunk that constantly sends time data, and transmits the time data from the clock trunk to a telephone through a telephone line. A telephone having a switch having a telephone control unit, a time data reading unit for fetching time data from the call line, and a time display unit for displaying time according to time data obtained from the time data reading unit. It has been configured.

In the telephone, the time data reading unit stores and holds time data at the start of call connection, the time data at the end of call connection and the time data at the start of call connection held in the storage and holding unit. And a calculation processing unit that calculates a time difference between

[0014]

Therefore, according to the present invention, in the present switching system, the telephone set can receive the time data constantly sent from the clock trunk through the call line when the telephone call is not in progress, thus affecting the congestion of the control bus. Accurate time notification can be received and displayed without being interrupted, and at the same time the call time can be accurately recorded.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 shows the configuration of an embodiment of an exchange system according to the present invention. In FIG. 1, 1 is an exchange, and 2 is one of a plurality of telephones accommodated in the exchange 1.

In the exchange 1, 3 is a control unit for controlling exchange connection of the exchange 1, and 4 is a plurality of telephones (one of which is the telephone 2) and a station line or a dedicated line in response to a command from the control unit 3. A communication path switch unit (hereinafter, referred to as SW) that forms a communication path with (not particularly shown). Reference numeral 2a is a handset connected to the main body of the telephone 2. Reference numeral 5 is a clock trunk for sending time data, 6 is a telephone control unit, and the telephone 2 is for the control unit 3 and the communication path switch unit 4
Is a telephone control unit connected to the. Reference numerals 7 and 8 are a control bus and a communication path bus.

In the telephone 2, 9 is a voice conversion unit for converting a digital voice signal on the telephone line to (to) an analog voice signal, 10 is a telephone control unit for controlling the telephone 2, 11 is a time data reading unit, Reference numeral 12 is a time display section for displaying the time, 13 is an operation key section, and 14 is a memory section.
The operation key operation unit includes a call-out key, a call-in key, a dial key, etc. for call connection operation. The telephone line 6 is connected to the telephone control unit 6 of the exchange 1. Reference numeral 15 is a control line for transmitting control data between the exchange 1 and the telephone set 2, and 16 is a call line for transmitting call data between the exchange 1 and the telephone set 2.

The telephone control unit 10 of the telephone 2 has a control line 15
In addition, the voice conversion unit 9 and the time data reading unit 11
Are connected to the telephone control unit 6 of the exchange 1 by telephone lines 16.

FIG. 2 shows the frame structure of the time data sent by the clock trunk 5 to the fixed time slot of the communication path bus 8.

FIG. 3 shows a data structure of the memory section. In the figure, 17 is a storage area for the telephone number of the other party, 18 is a storage area for the call connection start time, and 19 is a storage area for the call time.

Next, the operation of one embodiment of the present invention will be described with reference to FIGS. 1 and 2. The clock trunk 5 continuously transmits the time data having the frame structure shown in FIG. 2 to the fixed time slot of the communication path bus 8. When the control unit 3 detects the telephone 2 which is not in a call, it controls the speech path switch unit 4 to connect the speech path time slot of the telephone 2 to the fixed time slot of the speech path bus 8. As a result, a call path is set between the timepiece trunk 5 and the telephone set 2 which is not in a call, and the time data continuously transmitted from the timepiece trunk 5 is read by the time data reading section 11 and the time display section is displayed. 12 is displayed.

Operation key section of the telephone set 2 When a calling operation is performed by the telephone set 2, the calling signal is transmitted from the telephone control section 10 to the telephone control section 6 via the control line 15, and further the control section is controlled by the control bus 7. 3 is sent. When the control unit 3 transmits an incoming call signal to the partner telephone and receives a response signal, it switches the call path time slot of the telephone set 2 from the fixed time slot of the clock trunk 5 to the call time slot of the partner telephone. As a result, the time data cannot be received. Therefore, the time data is not regenerated during the call, but during this period, the user can be alerted by blinking the time display of the time display unit 12.

When the telephone call is terminated and the telephone 2 terminates the call connection, the control unit 3 connects the telephone call time slot of the telephone 2 to the fixed time slot of the clock trunk 5 again.
The time data continuously transmitted from the timepiece trunk 5 is read by the time data reading unit 11 and displayed on the time display unit 12.

As described above, according to the above-described embodiment, it is possible to always display the accurate current time on the time display section of a telephone which is not in a call.

Next, the display operation of the call time in the telephone in the embodiment of the exchange system of the present invention will be described.

When the telephone control unit 10 detects that the call key of the operation key unit 13 is pressed, it sends a call signal to the control unit 3, and when the operation key unit 13 detects the telephone number of the transmission destination, the control unit 10 receives the call signal. 3, and at the same time stores it in the other party's telephone number storage area 17 of the memory unit 14 as shown in FIG. At this time, the telephone control unit 10 stores the time data input by the time data reading unit 11 in the call connection start time storage area 18 in association with the partner telephone number of the memory unit 14. Since the time data cannot be received during the call, the time data cannot be regenerated.

When the call ends and the telephone 2 ends the call connection, the time data continuously transmitted from the timepiece trunk 5 is read by the time data reading unit 11.
The telephone control unit 10 reads the first one of the transmitted time data and the time data stored in the call connection start time storage area 18 of the memory unit 14 before the call is started, calculates the time difference, and stores the time difference. It is stored in the call time storage area 19 in association with the telephone number of the section 14.

The user of the telephone 2 can know the accurate current time from the time display section 12 when not in a call, and at the same time operates the operation key section 13 to control the telephone control section 10 to store the time in the memory section 14. It is also possible to read out the stored call time for each telephone number of the other party who made the call and display it on the time display unit 12.

[0029]

As is apparent from the above embodiment, the present invention has the effect that the telephone user of this switching system can know the exact time immediately before use and at the same time the accurate call time. Have.

[Brief description of drawings]

FIG. 1 is a configuration block diagram of an exchange system according to an embodiment of the present invention.

FIG. 2 is a frame configuration diagram of time data according to an embodiment of the present invention.

FIG. 3 is a data configuration diagram of a memory unit according to an embodiment of the present invention.

FIG. 4 is a configuration block diagram of a conventional exchange system.

[Explanation of symbols]

 1 exchange 2 telephone 3 control section 4 speech path switch section 5 watch trunk 6 telephone control section 7 control bus 8 speech path bus 9 voice conversion section 10 telephone control section 11 time data reading section 12 time display section 13 operation key section 14 memory section 15 control line 16 call line

Claims (2)

[Claims] 1. An exchange system comprising an exchange and a plurality of telephones accommodated in the exchange by a call line and a control line, wherein the exchange has a clock trunk for constantly transmitting time data, A telephone control unit for transmitting the time data from the watch trunk to the telephone through the call line, the telephone including a time data reading unit for fetching time data from the call line, and the time data reading unit. And a time display unit that displays the time according to the time data obtained from the exchange unit. 2. The telephone set stores and stores time data at the start of call connection by the time data reading unit, time data at the end of call connection, and time data at the start of call connection held in the storage unit. 2. The exchange system according to claim 1, further comprising arithmetic processing means for calculating a time difference between