JPH0346453A - Character information communication system between communication terminal equipments - Google Patents

Abstract

PURPOSE:To attain character information communication between a caller and a called terminal equipment even when an automatic exchange is being called by sending character information recorded on a communication terminal equipment to a connection destination communication terminal equipment through the use of a control channel. CONSTITUTION:When a recording control section 12 detects character information recording display such as depression of function key from an operation section 11 via a terminal control section 17, the display of character information recorded at present is commanded to a display control section 16 via the control section 17 and displays the character information on a character display section 15. When the character information inputted succeedingly from the operation section 11 is received via the control section 17, the display of the received character information is commanded to the control section 16 via the control section 17. When the character information recording command from the operation section 11 is again detected via the control section 17, the received character information is first rewritten and recorded. When the character information from the operation section 11 is not received, it is regarded as the absence of character information and when the character information recording command from the operation section 11 is detected, the recorded character information is deleted. When the character information recording command is not detected, the rewrite of the character information is not implemented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a character information communication system between communication terminals accommodated and connected to an automatic exchange.

[Conventional technology]

In the conventional text information communication method between communication terminals, the communication terminal enters a call state through the procedures of making a call, calling the called terminal, and responding to the called terminal, and text information is exchanged between the communication terminals through the communication path. was.

[Problem to be solved by the invention]

In the above-mentioned conventional text information communication method between communication terminals, after the called terminal responds, it enters a talking state and text information is communicated through the communication path. Department of terminal usage.

There is a drawback that irregular character information such as the user or the reason for absence such as going out cannot be communicated between the communication terminals.

[Means to solve the problem]

In the character information communication method between communication terminals according to the present invention, a communication terminal with a character display function that is housed and connected to an automatic exchange has a recording control unit that records character information input from an operation unit, and a ringback tone reception when a call is made. and a character information transmission control unit that transmits character information recorded in its own terminal upon reception of a ringing signal at the time of incoming call to the automatic exchange through a control channel;
a display control unit that displays character information received from the automatic exchange through the control channel on a character display unit;
The automatic exchange is characterized in that it includes a control channel data control unit that retransmits character information received from the communication terminal through the control channel to a connected communication terminal.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the character information communication method between communication terminals of the present invention.

First, with reference to FIG. 1, the connection between the automatic exchange and the communication terminal of this embodiment will be explained. According to FIG. 1, a communication terminal 1 has a communication path 2. It is connected to an automatic exchange 4 by a control channel 3, and a communication path 2. Control channels 3 are connected to main switches 6 via line circuits 5 within automatic exchange 4.
, connected to the central control unit 7. Communication terminal l is operation unit 1
1. Recording control section 122 Character information transmission control section 131 Communication control section 149 Character display section 159 Display control section 16. It has a terminal control section 17. The operation unit 11 includes, for example, a hook switch in a multifunction telephone, a service function selection switch, a dial button, or a keyboard. The communication control unit 14
A terminal control unit 17 is connected to an automatic exchange 4 through a control channel 3 and handles communication processing including a telephone transmitting/receiving mechanism, call control 1 to the automatic exchange, incoming call detection, dial code transmission, etc.
Execute by exchanging information with. The character display section 15 is
For example, it is a liquid crystal display board that displays 16 characters per line, and 20 lines and 4 characters.
This is a 0 column CRT display device. The display on the character display section 15 is controlled in accordance with the display command and display information based on the control information of the display control section 16 and the terminal control section 17 . The terminal control section 17 includes an operation section 11, a recording control section 121, a character information transmission control section 13, a communication control section 14. It exchanges information with the display control 8B16 and executes processing according to the information. Recording control section 12
The character information transmission control section 13 will be explained later with reference to FIGS. 2 and 3, respectively.

Further, the central control device 7 of the automatic exchange 4 has a call control section 21 and a control channel data control section 22.

The call control unit 21 executes communication processing including connection and restoration of the main switch 6 by exchanging information with the control channel data control unit 22. The control channel data control section 22 performs processing according to the information, based on control information from the communication terminal l connected via the line circuit 5 and the call control section 21.

FIG. 2 is a flowchart showing an example of the operation of the recording control section shown in FIG.

As shown in FIG. 2, when the recording control unit 12 detects a text information recording instruction from the operation unit 11, for example, pressing a function key, via the terminal control unit F (Sl), the recording control unit 12 displays the currently recorded text information. The display control unit 16 is instructed via the terminal control unit 17 to display text information on the text display unit 15 (S2). Subsequently, when character information input from the operation unit 11 is received via the terminal control unit 17 (S3), the display control unit 16 is instructed to display the received character information via the terminal control unit 17 (S4). When the character information recording instruction from the operation unit 11 is detected again via the terminal side #817 (S5), the character information received in step S3 is rewritten and recorded for the first time (S6).
. This completes the recording of character information. If character information is not received from the operation unit 11 in step S3 (NO), it is determined that there is no character information, and when a character information recording instruction from the operation unit 11 is detected in step S5, the recorded character information is erased. Further, if a character information recording instruction from the operation unit 11 is not detected in step S5 (NO), the character information is not rewritten.

Next, FIG. 3 is a flowchart showing an example of the operation of the character information transmission control section of FIG. 1.

The operation of the character information transmission control section I3 is as follows. The communication control unit 14 receives a ringback tone from the automatic exchange 4 when a call is made or a paging signal from the automatic exchange 4 when a call is received, and the text information transmission control unit 13 receives this via the terminal control unit 17 (Sll ), the recorded character information is called up via the terminal control unit 17 in accordance with the operating procedure shown in FIG. 2 (512), and the called out character information is transmitted to the automatic exchange 4 through the control channel (S13). This completes the operation of transmitting character information to be displayed on the communication terminal connected to the automatic exchange.

FIG. 4 is a flowchart showing an example of the operation of the control channel data control section of FIG. 1 when character information is received from a communication terminal through a control channel.

As shown in FIG. 4, when it is learned that the data received from the communication terminal 1 through the control channel is character information (S
21), the call control unit 21 recognizes the destination communication terminal 522), and transmits the received text information to the destination communication terminal again through the control channel (S23). This completes the transmission of character information to the connected communication terminal.

FIG. 5 is a flowchart showing an example of the operation of the display control section of FIG. 1 for displaying character information received from the automatic exchange through the control channel.

As shown in FIG. 5, the communication system fit section 14 receives character information from the automatic exchange 4 through the control channel, and the display control section 16 receives and receives this through the terminal control n17 (S3
1) The display control section 16 displays the received character information on the character display section 5 (S32).

This completes the text information communication between the calling and called terminals during the calling operation of the automatic exchange 1.

In the above embodiment, the components were explained separately for convenience of explanation in FIG. 1, but the functions of one control section may be partially separated or integrated with another control section, The block configuration does not limit the invention. In addition, although the operating procedure has been illustrated and explained in FIGS. 2 to 5, there is no problem even if the procedure is changed back and forth as long as the function to be performed remains unchanged, so the procedure according to the illustrated example does not limit the present invention. It's not a thing. Furthermore, character information recording instruction 1 according to the above explanation
The manual input of text information may be performed using any of the function key switches, dial buttons, keyboard, etc. provided in the operation section. For example, instructions are function keys and input is by keyboard,
This setting does not limit the invention.

〔Effect of the invention〕

As explained above, the present invention transmits character information recorded in a communication terminal to a connected communication terminal using a control channel. This has the effect that text information communication can be performed between call terminals.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG.
FIG. 3, FIG. 4, and FIG. 5 are flowcharts showing an example of the main procedures of this embodiment. 1... Communication terminal, 2... Call path, 3.
...Control channel, 4...Automatic switchboard,
5...Line circuit, 6...Main switch, 7...Central control unit, 11...Operation unit, 12...Recording control Section, 13...Character information transmission control section, 14...Communication control section, 15
...Character display unit, 16...Display control unit, 17...Terminal control unit, 21...Call control unit, 22... Control channel data control section.

Claims (1)

[Claims] A communication terminal with a character display function that is housed and connected to an automatic exchange has a recording control unit that records character information input from the operation unit, and records it in its own terminal by receiving a ringback tone when making a call and receiving a ringing signal when receiving a call. a character information transmission control section that transmits the received character information from the automatic exchange through a control channel to the automatic exchange, and a display control section that displays the character information received from the automatic exchange through the control channel on a character display section; An inter-communication terminal character information communication system, comprising a control channel data control unit that retransmits character information received from the communication terminal through the control channel to a connected communication terminal.