JPH06133037A - Electronic exchange - Google Patents

Abstract

PURPOSE:To prevent a line from being cut even at the time of on-hooking and to wait for a response from a holding person on a held-side when one terminal holds communication in an exchange having a means holding communication between two terminals executing communication. CONSTITUTION:When line holding information is inputted by a prescribed key operation from a held terminal (11a, for example) during holding, CPU 3 in the exchange 1 receives it and sets line holding information in RAM 5 to 'ON'. When the held terminal 11a is on-hooked, CPU 3 checks line holding information of RAM 5. When it is 'ON', a holding state is held without cutting the line. When a prescribed holding release operation is executed in a terminal (11c, for example) executing holding, CPU 3 transmits a call tone from a tone memory 8 to the held terminal 11a. When the held terminal 11a is off-hooked in response to the call tone, CPU 3 connects the both terminals 11a and 11c, and resumes communication.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic exchange holding system.

[0002]

2. Description of the Related Art In a conventional digital private branch exchange,
In the case of communication between two parties, if one party suspends communication,
The holdee disconnects the line when he hooks the handset of his own terminal, so he had to wait for the hold response from the holdman in the off-hook state.

[0003]

As described above, when one of the two parties of the two-way communication puts the communication on hold, the person to be held must wait for the holding response from the holding person in the off-hook state. Also, I could not use the time until a response was received because I did not know when there was a hold response.

Therefore, the present invention eliminates such a problem, and when the communication partner puts a call on hold, the line is not disconnected even if the receiver of the holdee terminal is on-hook, and there is a response from the holder. The purpose is to be able to inform the person to be held.

[0005]

SUMMARY OF THE INVENTION The present invention relates to an electronic exchange having a means for accommodating a plurality of terminals and suspending communication between terminals communicating with each other. The line holding information memory that receives and stores the line holding information from the held terminal while the communication is held by, and if the line holding information is stored when the held terminal goes on-hook, the communication is performed. Holding means for holding the state of being held, and while holding the communication is held in a state where the held terminal is on-hook by the holding means, while receiving hold response information from the holding terminal,
Notifying means for sending information indicating that there is a hold response to the held terminal, and releasing the hold to connect both terminals and resume communication when the held terminal goes off-hook in response to the information from the notifying means And an electronic exchange.

[0006]

When one terminal (holding terminal) holds the communication during communication, when line holding information is input from the held terminal, for example, by operating a predetermined function key, this information is stored in the memory, and thereafter, Even if the held terminal goes on-hook,
The holding means keeps the line connected and maintains the hold state. As a result, the held person can wait for a holding response from the holding person in the on-hook state.

When the person on hold responds, even if the held terminal is on-hook, the person on hold knows that there is a response from the person on hold by the notifying means, and if he / she responds to this by going off-hook, communication is resumed You can

[0008]

1 is a block diagram showing the configuration of an embodiment of a private branch exchange according to the present invention. In this figure, only three extension telephones are shown and the other telephones are omitted. Reference numeral 1 denotes an electronic exchange, which has a main control unit 2 that controls the operation of the entire system. Main controller 2 is a CPU
3, a program ROM 4 in which an operation program of the CPU 3 is stored, and a work RAM 5. The RAM 5 stores state information such as whether each extension telephone is in the on-hook state or in the line holding state. It has an area to keep. The main control section 2 uses the extension telephone 1 via the control data line 10 and the extension telephone interface circuit 7.
1 is connected so that control signals can be exchanged with the extension telephone 11. Further, the main control unit 2 uses a time switch (TSW) 6 for exchanging between the call data lines 9.
The tone memory 8 for generating tone data such as a holding tone and a ringing tone is under control. The tone data line 12 carrying the tone data from the tone memory 8 is also connected to the TSW 6 so that it can be selectively connected to any one of the call data lines 9.

In such a configuration, communication was performed between the telephone 11a and the telephone 11c, but the telephone 1
Assume that the user of 1c temporarily suspends the communication. At this time, the telephone 11a on the holding side is connected to the tone memory 8 by the TSW 6 and the holding tone is sent. Here, when the user of the telephone on the held side (hereinafter referred to as "held telephone") 11a operates a predetermined function key or dials a predetermined special number, a control signal corresponding to the operation is sent to the extension telephone interface circuit 7a and the control data. It is sent to the main control unit 2 via the line 10a.
Then, the CPU 3 in the main control unit 2 receives the control signal, and the held telephone 11 in the RAM 5 as shown in FIG.
The line holding information of the area assigned to a is set to "ON". After that, when the handset of the held telephone 11a is hooked on-hook, the hook information is also sent to the CP in the same route as above.
It is transmitted to U3 and stored in RAM5, and CPU3
Reads the line holding information in the area allocated to the held telephone 11a of the RAM 5, and if the line holding information is "ON"
If so, the CPU 3 causes the held telephone 11 to
Telephone 1 by TSW6 without disconnecting line a
The connection between 1a and the tone memory 8 is maintained as it is. As a result, the person to be held can wait for a response from the person on hold with the handset of the own telephone 11a being on-hook. In this state, when the held telephone 11a goes off-hook, the holding tone can be heard again.

After that, when the hold person performs a predetermined hold response operation, the information is transmitted to the CPU 3 via the interface circuit 7c and the control data line 10c, and the CPU 3 reads the R
The state information of the area allocated to the held telephone 11a of AM5 is read, and it is checked whether the held telephone 11a is on-hook and in the line holding state. If the line holding information is "OFF" and the held telephone 11a is in the off-hook state and the hold is maintained, the CPU 3
Controls the TSW 6 to operate both telephones 11a, 1 in normal operation.
Connect between 1c. On the other hand, when the line holding state is "ON", the CPU 3 reads the hook information in the area allocated to the held telephone 11a in the RAM 5 to determine whether the held telephone 11a is on-hook or off-hook. Check. When in the off-hook state, the two telephones are connected by a normal operation as in the above case. When in the on-hook state, the CPU 3 controls the TSW 6 to send the ringing tone made in the tone memory 8 to the held telephone 11a to notify the held person that there is a hold response. When the person to be held notices the off-hook of the handset, the CPU 3 receives the hook information and controls the TSW 6 to control both telephones 1
1a and 11c are connected and communication is restarted.

The above operation will be described again with reference to the flow charts of FIGS. First, one user suspends communication during communication (S1). Here, when the holdee operates a predetermined function key or inputs a predetermined special number by dialing (S2), line holding information "ON" is stored in the RAM 5 for the held phone (S3). When the above key operation or special number input is not performed, the line holding information in the RAM 5 remains "OFF". After that, when the holder responds while the communication is held (S4), the CPU 3 in the main control unit 2 checks whether the line holding information of the held telephone in the RAM 5 is "ON" or "OFF" ( S
5). If "OFF", the two telephones are reconnected by normal operation and communication is resumed (S9). On the other hand, when the line holding information is "ON", the CPU 3 checks whether or not the hook information of the holdee telephone in the RAM 5 is on-hook (S6). Then, the two telephones are connected to restart communication (S9). Further, when in the on-hook state, a ringing tone is sent to the held telephone (S7), and when the held person who notices it responds (S8), both telephones are connected to restart communication (S9). ).

Although the present embodiment has been described by taking a private branch exchange as an example, the present invention can be applied to a larger exchange which is used in a station of a public telephone line network.

[0013]

As described above, according to the present invention,
The held person can wait for a holding response from the holding person in the on-hook state. Then, the ringing tone allows the person to be held to know that the person on hold responded, so that the time during the hold can be effectively used.

[Brief description of drawings]

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

FIG. 2 is a flowchart showing a line holding information setting operation of the embodiment.

FIG. 3 is a flowchart showing an operation from a hold response to communication restart in the embodiment.

FIG. 4 is a memory map showing an area for storing line holding information in the work RAM 5.

[Explanation of symbols]

 1 Private branch exchange 2 Main control unit 3 CPU 4 Program ROM 5 Work RAM 6 Time switch (TSW) 7 Extension telephone interface 8 Tone memory 11 Extension telephone

Claims (1)

[Claims] 1. An electronic exchange having a means for accommodating a plurality of terminals and suspending communication between terminals communicating with each other, while the communication is suspended by one of the communicating terminals. , A line holding information memory that receives and stores the line holding information from the held terminal, and if the line holding information is stored when the held terminal is hooked, the state in which the communication is held is held. While the holding means keeps holding the communication and the held terminal is on-hook by the holding means, the holding terminal receives the hold response information from the holding terminal and a hold response is sent to the held terminal. And a hold releasing means for connecting both terminals and restarting communication when the held terminal goes off-hook in response to the information from the notifying means. Electronic exchange system.