JPS61238154A - Communication connecting system - Google Patents

Abstract

PURPOSE:To prevent wasteful dialing when the circuit is fully busy and to improve the use effeiciancy of the circuit by dialing the talk time in addition to the telephone number of destination, and letting the exchange register this information on the management table as a connection information and make the connection control according to this information. CONSTITUTION:When a caller dials special number 1XY which denotes call connection service from a telephone E, subscriber's exchange A identifies this 1XY and sends the second dial tone (SDT) to the telephone E. After recognizing the tone, the caller dials the telephone number of arriving side F and the talk time, for example, 30 minutes. The exchange A recognizes that line group C is necessary basing on the telephone number received, and make an access to management file G, retrieves the line management table recorded in the file G to know the line utilization situation, and if there is an idle circuit, connects the call and records a talk time. If there is no idle circuit, it checks the line scheduled to be idle,and inform the caller how many minutes later the telephone call is possible.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a connection communication method for instant connection and a connection communication method in which immediate connection and reserved connection coexist.

(Summary of the Invention) The present invention provides a method for communicating with the other party when requesting an immediate connection or a reserved connection from a terminal such as a telephone to an exchange when there is only instant connection communication or a mixture of instant connection and reserved connection communications. In addition to the telephone number, the call time is dialed, and the exchange registers this information as connection information in the management table, and controls the connection based on this information, thereby eliminating unnecessary dialing when using only one line. This is designed to prevent this problem and improve the efficiency of line usage.

[Conventional technology]

With the instant connection method, an immediate connection is possible only when the line to the called party and the called party's telephone are free; of course, when these lines are occupied, the connection cannot be made, and the conventional instant connection method In this method, only the address information (receiving number such as telephone number) of the called party is entered from the calling party, so once a connection is established, it is completely unknown on the exchange side when the communication will end. When another subscriber makes a new call to the same line or to the same called subscriber, it is impossible to inform the caller when they can make the call if all the necessary lines are in use. Met. For this reason.

Callers made calls based on their own judgment, often repeating unnecessary dialing, and even if the line became free, it was unclear when it became free, and it was impossible to dial immediately after the line became free. , line usage efficiency was poor.

Furthermore, conventionally, since there is competition for line acquisition between reserved connection and immediate connection, there is a method (a) in which the line is used separately for reserved and immediate use (line division method).

(b) A method that always gives priority to reserved connections and disconnects even if an immediate connection call is in progress and connects a reserved connection call (
Three methods have been proposed: (c) a method that always gives priority to immediate connection, and even if the reserved connection call is in progress, it is disconnected and the immediate connection call is connected (immediate priority method). There is.

[Problem that the invention seeks to solve]

However, in the (a) line division method described above, if the ratio of 5 divisions is not appropriate, the line utilization efficiency will deteriorate, and (b)
(c) In the reservation priority method, it is unclear when an immediate connection call will be disconnected, which is not practical; and (c) in the immediate priority method, a reservation connection call will be disconnected during the call even if it is reserved. The effect of the reservation is completely gone and this is also impractical, therefore, conventionally.

They adopted a line splitting method, knowing that line efficiency was poor.

The purpose of the present invention is to solve these conventional problems by avoiding line contention between reserved connection calls and immediate connection calls, and
To provide a connection communication system that improves the utilization efficiency of one line by preventing wasteful dialing by a caller when the line is not available, improves the utilization efficiency of resources, and provides better serviceability.

[Means for solving problems]

In order to achieve the above object, the connection communication method of the present invention provides a connection communication method that is used when an arbitrary communication terminal requests an immediate connection to the exchange in a telecommunications network in which a plurality of communication terminals are connected to the exchange via a transmission line. To.

In addition to the address information of the connection destination from the terminal.

By transmitting the time required for communication to be performed from now on, the exchange stores the received information as connection information, and performs connection control based on this information.

[For production]

In the present invention, the exchange that performs connection processing manages line reservation status and usage status according to time, and one caller dials the call time not only at the time of reservation but also in the case of immediate connection. Obtain information equivalent to a reserved connection and use this.

This attempts to avoid line contention between reserved connection calls and immediate connection calls, and to use one line efficiently.

〔Example〕

FIG. 1 is a schematic configuration diagram of a connection communication system showing an embodiment of the present invention. With reference to this figure, an example will be described in which the time required for one communication is input in instant connection.

A is the caller's exchange, B is the receiver's exchange.

C is a line group connecting exchange A and exchange B, G is a management file that records the usage status of line group C, E is a caller's telephone, and F is a called party's telephone.

When a caller makes a call from telephone E1, by dialing a special number IXY representing the call connection service, local exchange A identifies this LXY and sends a second dial tone (SDT) to telephone E1. After confirming the second dial tone, the caller dials the telephone number of the called party's telephone F and the call time, for example, 30 minutes. Switch A knows that line group C is required from the received telephone number, and
Access management file G, index the line management table stored in file G, find out the usage status of the line, connect if the room is currently occupied, and record the call time in the management table, but if the room is not occupied, If it is not available, check the @ line that is scheduled to be available and notify the caller of the time when it will be possible to make a call (by telephone, etc.). At that time, when the same caller as last time dials, exchange A will As before, the line management table is indexed, and if line 0 is free, it is connected to exchange B where the called party's telephone F is accommodated, calls the called party's telephone F, and the line is entered in the management table. Record.

2 and 3 are diagrams of line management tables stored in the management file of FIG. 1, respectively.

In FIGS. 2 and 3, one line group C has five lines.

Enter the line number as Ll + L2 t t, a e L4.
When L5 is set, the usage status of the line is displayed by displaying "1" in the time period scheduled for use in IO minutes.Figure 2 shows the status of the line at the time of 10 o'clock. Figure 3 shows the management status at 1 o'clock and 1 o'clock.Line L1 is at 10:30.
1 line L2 until 11:20 1 line L3 until 11:20
until 10:00 p.m., line L4 until 10:20 p.m., line L6
indicates that each station is closed until 11:00.

First, at 10:10, a caller dials a special number IXY representing a call connection service from telephone E, and exchange A identifies IXY.

Returns a second dial tone (SDT). J1! The believer confirms the dial tone and dials the telephone number and call time (in this case, 30 minutes) of the called party's telephone F. Exchange A learns that line C is required from the received telephone number, accesses management file G, and indexes the line management table shown in Figure 2, finding that all lines L□ to L are in use. He also knows that line L3 will be free first. As a result, exchange A sends 10:
10 is notified by telephone that it is possible to make a call.

Next, when the same caller as last time dials from telephone E at 10:10, exchange A dials the second caller as before.
Index the management table shown in the figure.

Knowing that line L8 was free, I decided to use telephone E during this time, and as shown in Figure 3,
: Register '1' in the L3 frame from 10 to 10:30. Then, select line L3 and send the telephone number of telephone F to exchange B. Exchange B receives this and transmits the telephone number to telephone F. Calls F and connects telephones E and F via one line L3 to enable conversation.

Switch A indexes the line management table according to time, and when it goes to index the line management table at 10:40, for example, it finds that 1" is not registered, and releases line L3. , telephones E and F end the call.

Also, if the call ends before the registered call time,
For example, when L3 ends at LO:30, phone E
switches on-hook, exchange A detects this, immediately indexes the management table, and returns 1 of 11 L s 5 times.
Delete 1" that was registered in one frame from 0:3 to 10:40.

In this way, by dialing the call time and the telephone number of the called party from one caller, when the line is not available, the exchange can notify the caller when the line will be available. You can eliminate unnecessary dials.

In addition, lines can be used effectively.

FIG. 4 is a block diagram of a connection call system showing another embodiment of the present invention, and FIGS. 5 and 6 are operation sequence charts in FIG. 4. In this case, an example is shown in which reserved connections and immediate connections coexist.

First, a case will be described in which there is a ratio of 1 to 1 between the sender and the called party. The management file is different from that in Figure 1, and in the case of reserved connection, which uses file D, when a caller dials the special number IXY representing the call connection service from telephone E, as shown in Figure 5. , exchange A identifies this IXY, extracts the telephone number of telephone E from the accommodation location, and returns a second dial tone (SDT).6 After confirming the dial tone, the caller receives a code indicating a reserved connection. (reservation code), connection start time, call time, and telephone number of the other party to be connected, exchange A receives these and stores them as reservation information in management file D.
Based on this reservation information, the usage status of line group C recorded according to time in management file D is indexed, and if there is an available line at the required time, that line is secured and Notify the caller that registration has been completed.

When the connection start time arrives, exchange A calls telephone F via telephone E and exchange B, and connects these telephones E and F via an empty line, thereby establishing a call state.

Next, in the case of immediate connection, processing is performed in the sequence shown in FIG. ie, just like a reserved connection! When the subscriber confirms the second dial tone (SDT), he/she dials a code indicating immediate connection (immediate code), call time, and the telephone number of the other party to be connected, and exchange A receives these and uses them as connection information. At the same time as accumulating in management file D, based on this connection information, the usage status of line group C recorded according to time in management file D is indexed, and there is a line that is free at the required time, that is, the current time. If so, the line is secured, the caller is notified that the connection is possible, and the second called party is also called, after which the connection is started.

The above explanation is an overview of the connection process.

Next, an example of line reservation in exchange A will be explained.

FIG. 7 and FIG. 12111 are diagrams showing an "information table" for the exchange A to record information such as the connection start time dialed by the caller, and FIG.

Figures 911 and 13 show the reservation status of one line by displaying 1" in the time slot reserved in 10 minute units, respectively, when line group C has 5 lines and the 4 line numbers are L1 to L5. FIG. 1θ, FIG. 11, and FIG. 14 each manage connection start and end times corresponding to reservation numbers in units of 10 minutes, similarly to the line management tables. 3 is a diagram showing a connection management table.These three types of tables are registered in a management file D.

First, in a reserved connection, for example, at 10:00, when exchange A receives the reservation code, connection start time, call time, and telephone number from telephone E, it learns from the reservation code that it is a reserved connection, and locates telephone E. 7, and register it as shown in FIG. 7. In other words, add an unused reservation number (8 in this case) to the information table in FIG. 7, and set the connection start time 11. :00. Call time 120, phone number 3 of phone E which is the caller's phone number
69-2468. Register the telephone number 246-3579 of the called party 1 Next, index the line management table shown in Figure 8 and find out that line L1 has a vacant space between ii:oo and 13:OO 2 Figure 9 As shown in 11 of the L1 line:
In addition to registering 1n for each frame from 00 to 13:00,
Line number L2 is registered in the information management table shown in FIG.

Furthermore, the connection start time and end time are determined by t as shown in FIG. 11 based on the connection management table shown in FIG.
The reservation number 8 and connection start are registered in the i:oo frame, and the reservation number 8 and connection end are registered in the 12:50 frame. Furthermore, one sender is notified of the completion of registration.

Switch A indexes the corresponding time frame in the connection management table of FIG. 11 in units of 10 minutes. For example, 11:00.
When I looked up the relevant time frame, I found that reservation number 8 was the connection start point.

Indexing the information table in Figure 7 as a reservation key
, call telephone E at 369-2468, and
246-3579 using the line L1 to call telephone F and connect the two.

Another hour passed and it was 12:50.

Knowing that the connection management table in Fig. 11 shows the connection completion display for reservation number 8, indexes the information table in Fig. 7 using the reservation number as a key, connects the used line L1 and exchange A, and performs b. I learned the phone number 369-2468 and disconnected them at 13:00.

Next, in the case of an immediate connection, immediately after the reserved connection is made, for example, at 10:00, as shown in FIG. When exchange A receives the telephone number 333-5678, it identifies it as an immediate connection request from the immediate code, and sets the reception time to the connection start time (10:0
0), an unused reservation number 9 is assigned to the information table as shown in FIG. 12, and the connection start time is 10:00.
Call time 601 Register the called party's phone number 333-5678. Then, he indexed the line management table shown in FIG. 9 and learned that line L2 was vacant.

Register "1" for 6 frames from to:oo to 11:00 and set 1 line number L2 to the information table of the 12th Wi.
Record U.

Furthermore, in order to register the connection termination time based on the connection management table shown in FIG. 11, as shown in FIG. 14, io:
The reservation number 9 and connection termination are registered in the so frame, and the telephone number 333-5678 is called and connected using the first line L2.

As with the reserved connection, when time passes and it reaches 10:50, I notice that the connection management table in Figure 14 shows that the connection for reservation number 9 has ended, so I index the information table in Figure 12, Know the telephone number 369-2468 of the calling party connected to the line L2 and exchange A, and enter these numbers as 11.
:00.

The above is an explanation of the operation when there is a one-to-one relationship between one sender and one called party.

In these explanations, for the sake of simplicity, we have described the case in which the calling and called parties are each connected only to a subscriber exchange, but even if a relay exchange is involved, as in the general telephone network, the line between each exchange is This can be achieved in the same way by providing a line management table.

In this way, by dialing the call time in the instant connection, the caller f can make one call during that call time period without being hindered by the reserved connection, and for reverse K and reserved connection calls, One line is used effectively because it is possible to talk without being hindered by instant connection calls.

Next, as another embodiment, a method for reserving multiple connection terminals will be described when a multiple connection function is added to the exchange, telephones at three or more locations are connected simultaneously, and a conference is held by telephone.

FIG. 15 is a connection configuration diagram of the 1st story showing another embodiment of the present invention, and FIGS. 16 and 17 are respectively
6 is a sequence chart for reserved connection and immediate connection in FIG. 5;

In Fig. 15, 1 is an exchange having multiple connection function and reservation function, 2, 3, 4.5 are all subscriber exchanges, and 6
is a push-button telephone used by a caller (host) setting up a conference call, 7, 8, 9°10 is a telephone used by participants in the conference call, and 11°, 12, and 13 are relay exchanges.

First, in the reserved connection, as shown in FIG.
By dialing , subscriber exchange 2 sends IXY to transit exchange 13, and exchange 13 sends IXY to multifunction exchange l.
Send IXY to

Switch 1, which identified IXY, transmits the response signal to relay switch 1.
3 to the subscriber exchange 2.

The exchange 2, which has received the response signal, extracts the telephone number DN of the telephone 6 from the accommodation position of the telephone 'a'.

The function of transmitting the m-call number of the telephone set accommodated by the subscriber exchange from a subscriber exchange has been put to practical use as a calling party number identification function, and the calling party number DN used in facsimile communication services, etc. It is sent to the exchange 1 via the relay exchange 13.

The exchange 1 that received the caller telephone number DNO sends the telephone 6
The second dial tone (SDT) is sent directly to the second dial tone (SDT). After confirming this, the host on phone 6 dials the reservation code, conference start time, conference time, number of conference participants (excluding the host), and phone numbers of conference participants, that is, the phone numbers on phone 7, 8, 9, and 10. do.

The exchange 1 that has received this information stores it as reservation information, and based on this reservation information, accesses the usage status of multiple connection terminals recorded in accordance with the time, and determines whether the terminals are available at the required time. If there is a terminal with
The terminal is secured and the host is notified of the completion of registration.

When the conference start time arrives, exchange l transfers relay exchange 13.
Telephone 6 via subscriber exchange 2 and transit exchange 1
1 or 12. Telephones 7, 8, 9, and 10 are called via subscriber exchange 3.4 or 5, and each telephone 6-1 is called.
By connecting 0 to the multiple connection terminal, it is possible to conduct a conference call in which calls can be made freely from each telephone.

Next, in the case of immediate connection, the procedure shown in FIG. 17 is performed. In other words, when the host confirms the second dial tone in the same manner as in the case of a reserved connection, telephone 6 immediately transmits the code, meeting time, number of conference participants (excluding the host), telephones 7, 8, 9, and 10. Dial each phone number. The exchange 1 that has received these pieces of information stores them as connection information and, based on these connection information, calculates the terminals of multiple connections recorded in accordance with the time, in the same way as in the case of reserved connections. Access usage status.

If there is an open terminal at the time you need it.

Secure that terminal, notify the host that the conference is possible, call telephones 6, 7, 8, 9, and 10 in the same manner as starting a reserved connection conference, and connect them to the multiple connection terminal. Meetings can be held.

In addition, in the case of immediate connection, scheduled connection, and conference call connection, the management file number is determined based on the dialed information;
As a result of access, if resources cannot be secured (for example, when the line is blocked), the exchange will tell you when it is possible to make a call using a talkie, etc., or how many resources can be secured for a specified time period. If users are informed that it is possible, the service quality will be higher.

In addition, services can be provided with high resource usage efficiency.

Next, an example will be described in which multiple connection terminals are secured in the exchange 1 shown in FIG. 15.

FIG. 18 is an internal configuration diagram of the exchange 1 shown in FIG. 15.
In the figure, 21 is a network, 22 is a multiple connection device, and 23
is a channel of a multiple connection device connected to the network 21, and here the number of channels is assumed to be 20. 24 indicates the network 21 and other exchanges, for example exchange 1 in FIG.
1,12. 25 is a CC (common control device), 26 is a signal line that connects CC 25 and multiple connection device 22, and 28 is reservation information and multiple connection device! ! 22
This is a management file that stores the usage status of terminals, etc.

First, an overview of the multiple connection procedure will be described. When multiple connections are made for a teleconference, the CC 25 reads connection information such as the number of conference participants and telephone numbers stored in the management file 28, calls the conference participants using the call @24, and connects the signal line. Multiple connection device via 27! The channel number to be used is sent to 22, and the line 24 and terminal 23 are connected via the network 21. Moreover, the multiple access device 22 is.

Based on the received channel number, the corresponding channel is put into a multiple connection state.

19 and 25 are diagrams showing the scheduled connection status of the teleconference shown in FIG. 15, FIGS. 21 and 26 are diagrams showing information tables, and FIGS. The figure shows a channel management table, and FIGS. 23, 24, and 2'8 show connection management tables. Of these, in Figures 19 and 25, 9:00 to 12:00
The arrow indicates that the conference will be held for the time specified by the arrow. Further, the number of people above the arrow is the number of participants in the conference, including the host.

Further, FIG. 21 and FIG. 26 show information tables for the exchange 1 to record information such as the connection start time dialed by the host. Regarding Figures 20, 22, and 27, Figure 20 corresponds to Figure 19, Figure 22 is based on Figure 20, and Figure 27 is based on Figure 2.
2, and each channel management table shows the number of usable channels of channel 23 in units of 10 minutes. For example, in FIG.

From 9:00 to 9:10, 11 of the 20 channels are in use, indicating that the remaining 9 channels are available, and from 10:00 to 10:00, all 20 channels are in use. Therefore, the number of usable channels is 0. Also, Figure 23 and 2
4 and 28, similarly to the channel management table, a connection management table is shown that manages the start and end times of a telephone conference in 10 minute units corresponding to reservation numbers. All of these three types of tables are registered in the management file 28. The connection operation of a telephone conference will be explained with reference to these figures.

First, in the reserved connection, in the state shown in FIGS. 19 and 20, the exchange 1 transmits the telephone number 266-8287. of the host telephone 6 at 9:00. In addition, the reservation code, conference start time 11:00, conference time 60, number of conference participants (excluding host) 3, conference participant phone number 245-9175.
When 336-3825.445-6166 is received, it is known from the reservation code that it is a reserved connection, and as shown in the information table in Figure 21, an unused reservation number (6 in this case) is assigned and the conference starts. Time 11:00゜Meeting time 6
0. Host phone number 266-8287, conference participant phone number 245-9175.338-3825.445
-6166, register the number of conference participants as 3. And the second
Index the channel management table shown in Figure 0, ti:oo
~12:.

Knowing that the required 4 channels are available during 11:00 to 12:00 (7), as shown in Figure 22, in order to secure 4 channels, Change the number of channels in the management table (5
Furthermore, based on the connection management table shown in FIG. 23, the reservation number 6 and the meeting start are recorded in the 11:00 frame as shown in FIG. 24. Register for the end of the second meeting at 12:50.

Switch l indexes the corresponding time frame in the connection management table of FIG. 24 in 10-minute increments, and at 11:00, for example, it rejects the reservation number 6 that starts the conference and uses the information in FIG. 21. Index the table using the reservation number as the key, 266
-8287. and 245-9175.336-382
5. Call the number 445-6166, channel 2
By connecting 4 channels out of 3 and the lines 24 connected to the telephones corresponding to the respective telephone numbers through the network 21, and by multiplex connecting each channel with the multiple connection device 22, the host and each conference Enable conference calls with participants.

Furthermore, the trunk number specified in the connection process is
Register in the information table in the figure (here.

21-24).

Another hour passed and it was 11:50.

Knowing that there is a connection end display for reservation number 6 on the connection management table in Figure 24, index the information table in Figure 21 using the reservation number as a key, and search for trunk numbers (21 to 24).
Based on this, the line related to reservation number 6 is disconnected at 12:00.

In the case of an immediate connection, for example, at 9:00, immediately after the above-mentioned reserved connection, in the state shown in FIG. Number of conference participants: 4, phone number of conference participants: 998-
7311.316-6865.828-2222.71
When 1-1234 is received, we know from the immediate code that it is an immediate connection, and change the reception time to 9:00, the meeting start time.
As shown in FIG.
0. Host phone number 511-2367, number of conference participants 4, conference participant phone number 998-7311.316
-6865.828-2222.711-1234. and.

Index the channel management table in Figure 22 and start from 9:00.
Knowing that the required 5 channels are available during 10:00, as shown in Figure 27, in order to secure 5 channels, the channel management table between 9:00 and 1:00 is created. Change the number of channels (9-5=4.6-5
= l111).

Furthermore, based on the connection management table shown in FIG.
As shown in Figure 8, the reservation number 7 and the start of the conference are registered in the 9:00 slot, and the end of the conference is registered in the 9:50 slot, and a notification to connect to the host is sent, as shown in Figure 26. Telephone number 9 of the conference participant in reservation number 7 on the information table
98-7311.316-6865, 828-2222
．． 711-1234 to enable a conference call between the host and each conference participant using a procedure similar to a reserved connection.

Furthermore, trunk numbers 15 to 19 specified in the connection process
is registered in the information table shown in FIG.

As with the reserved connection, two hours have passed and at 9:50, I learned that there was a conference end display with reservation number 7 on the connection management table in Figure 28, and reserved the information table in Figure 26. Index with number 7 as key, trunk number 15
~19, and disconnected the line related to reservation number 7 at 10:00.

In this way, in a conference call with multiple connections.

Not only for reserved connections but also for instant connections, the host dials the conference time (call time) so that calls can be made during the conference time without interfering with the reserved connection, and vice versa. is connected without any hindrance to immediate connect calls. Therefore, the channels of the multiple access device can also be used effectively. Furthermore, if a line cannot be secured as a result of accessing the management file based on the information dialed for reserved connection or instant connection.

Information such as which time slots are available and how many channels are available at that time.

By notifying the user from the exchange, unnecessary dialing can be avoided and line usage efficiency can be improved.

In this embodiment, the case where only a telephone terminal is used as the terminal has been explained, but the present invention is not limited to this, and it is of course possible to input the other party's number and call time by digital signals from the data terminal to the exchange. , and includes the case of all terminals.

[Effects of the Invention] As explained above, according to the present invention, even if only an immediate connection is made, by dialing the call time, the caller can prevent unnecessary dialing when one line is not available. This also improves line utilization efficiency.
Even in a system with a mixture of instant connection and scheduled connection, by dialing the call time or conference time by the user (caller or host), the usage time of resources such as line or device channel is clarified, and other reservations can be made. Resource usage conflicts with connection calls or immediate connection calls can be avoided, and resource utilization efficiency is improved.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of an instant connection method showing an embodiment of the present invention, Figs. 2 and 3 are diagrams showing the line management table of Fig. 1, and Fig. 4 is a diagram showing one-to-one communication in the present invention. Connection configuration diagram,
5 is a sequence chart for reserved connection in FIG. 4, FIG. 6 is a sequence chart for immediate connection in FIG. 4, and FIGS. 7 and 12 are diagrams of information tables used in FIG. 4. FIGS. 8, 9, and 13 are diagrams similarly showing line management tables, and FIGS. 1O, 11, and 14 are diagrams similarly showing connection management tables. FIG. 15 is a connection configuration diagram of a telephone conference showing another embodiment of the present invention, FIG. 16 is a sequence chart for reserved connection in FIG. 15, and FIG. 17 is a sequence chart for immediate connection in FIG. 15. FIG. 18 is a block diagram of the exchange in FIG. 15, and FIG. 19, 251!1 is the 151! FIGS. 21 and 26 are diagrams showing the connection schedule of the telephone conference of I, and FIGS.
Figure 7 shows the channel management table, and Figure 23 shows the channel management table.
24 and 28 are diagrams showing connection management tables, respectively. A, B: Exchange, C: Line group, D, G: Management file,
E, F: Telephone, 1: Exchange with multiple connection function, 2,
3, 4.5: Local exchange, 6° 7.8, 9, 10: Telephone, 11, 12, 13: Trunk exchange, 21: Network, 22: Multiple connection device, 23: Channel, 24; Line, 25 :CC (common control device), 26.27: Signal line, 28=Management file. Figure 1 Figure 2 Figure 3 Wc4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 10 Connection start display Figure 11! Figure 12 Figure 13 Figure 14 Connection start display > cooO π t
Heto's 08 W Figure 18 Figure 21 Figure 23 Figure 24 Connection start display Figure 26 Figure 28

Claims (3)

[Claims] (1) In a telecommunications network in which multiple communication terminals are connected to an exchange via transmission lines and instant connection communication is performed by the exchange, when any communication terminal requests immediate connection to the exchange, The device is characterized in that by transmitting from the terminal the address information of the connection destination as well as the time required for the communication to be performed, the exchange stores the received information as connection information and performs connection control based on the information. connection communication method. (2) In a telecommunications network in which multiple communication terminals are connected to an exchange via transmission lines, and the exchange performs both instant connection and reserved connection communications, any communication terminal can immediately connect to the exchange. When making a request, the terminal sends the address information of the connection destination as well as the time required for the communication to be performed, while when requesting a reserved connection from another or the same communication terminal to the exchange, the communication By transmitting the connection destination address, the time required for communication, and the start date and time of communication from the terminal before the start, the exchange stores the received information as connection information and performs connection control based on this information. Characteristic connection communication method. (3) When the above communication terminal sends only instant connection communication or a mixture of immediate connection and reserved connection communication, when requesting connection to the exchange, it sends multiple pieces of address information of the connection destination. The connection communication method according to claim 2, characterized in that communication is performed between a plurality of terminals.