JPH08204818A - Method for controlling exchange connection - Google Patents

Abstract

PURPOSE: To connect a call matching the incoming characteristic of a telephone betting call and expected by a plan presenter by connecting the incoming of a set procedure only for prescribed time after receiving a start instruction from a master device, and after the elapse of the prescribed time, and controlling a device to a state for waiting the instruction from the host device. CONSTITUTION: After receiving a start instruction from a network service supervisory station(NSSP) being the host device, the incoming of the set procedure is connected only for a time T, and after the elapse of the time T, the device is controlled to a queuing state for an instruction from the station NSSP. The start is instructed to plural subscriber's line exchanges GC at random. The sending interval of start instructions is set to the prescribed time T. In this case, the prescribed time T is set to the average talking time of a plan presenter's terminal. The number of exchanges belonging to the exchanges GC corresponds to the number of plan presenter's terminals. At the end of a plan, it is unnecessary to instruct the end of cut through to each exchange GC.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is used for telephone voting conducted by television, radio, and other media for the purpose of investigating the awareness of viewers. The present invention is used for a special telephone service using an intelligent network. In particular, it relates to call connection control technology.

[0002]

^2. Description of the Related Art Various services utilizing an intelligent network such as dial Q ² and toll-free are known. A conventional example will be described with reference to FIG. FIG. 5 is an overall configuration diagram of the intelligent network. In an intelligent network, in order to obtain data for supporting various special services, a subscriber line exchange GC (hereinafter, simply referred to as a switchboard is referred to as a switchboard) accommodating a plurality of exchanges for each call from a telephone terminal. A method of making an inquiry to the network service control station NSP from one of a plurality of exchanges accommodated under the exchange) has been adopted, but it depends on the processing capacity of the network service control station NSP and the line capacity in the middle. Due to restrictions, it tends to be difficult to respond to each inquiry. Therefore, by temporarily transferring the data from the network service control station NSP to the subscriber line exchange GC, the problem of increased traffic required for inquiries to the network service control station NSP is addressed. The outline is shown in FIG. Figure 6
FIG. 6 is a diagram showing a transfer state from a network service management station NSSP to a subscriber line exchange GC. In this way, the network service control station NSSP, which is a node higher than the network service control station NSP, can directly transfer the data to the subscriber line exchange GC.

In such an intelligent network that enables various services, a telephone voting service using a telephone terminal is performed. A conventional example will be described with reference to FIG. FIG. 7 is a conceptual diagram of a telephone voting service using a telephone terminal. First, the service content of the contractor is set in the network service management station NSSP from the terminal device of the mass calling center. Network Service Management Station NSS
The P downloads the service contents to the subscriber line exchange GC in the service providing area via the network service control station NSP.

The voter dials the telephone vote number (the number to vote for). The subscriber line exchange GC collects voting calls from accommodated subscribers. At this time, the caller is made to hear the message "Thank you Odenwa" and other messages by voice from the voice response device ARE and charged once. Network service control station NS
During the service implementation, P periodically causes all subscriber line exchanges GC to report the result of counting the number of calls. The network service control station NSP notifies the plan provider terminal IP of the count result through the network service management station NSSP.

At this time, it is necessary to simultaneously report the count result of the number of calls from all the subscriber line exchanges GC to the network service control station NSP because the processing capability of the subscriber line exchange GC or the line capacity in the middle or other restrictions. Therefore, the network service control station NSP performs polling control for instructing the subscriber line exchange GC to report the results cyclically one by one. Hereinafter, this control will be referred to as cut-through control. This conventional example will be described with reference to FIG. FIG. 8 is a diagram showing a conventional example of cut-through control.

As shown in FIG. 8, in the cut-through control of the conventional example, a cycle (through cycle) at which a through (connection) is instructed to each of the subscriber line exchanges GC (A) to GC (n) in order, that is, The cycle of the timing at which the subscriber line exchange GC starts to connect to the plan provider terminal IP varies depending on the number of lines of the plan provider terminal IP prepared at the called party. When the number of lines of the plan provider terminal IP is small, the through cycle becomes long.

Here, the conditions for a through call are: (conditions in the subscriber line exchange GC) 1. The subscriber line exchange GC accommodating the telephone voter receives the cut-through start instruction from the network service control station NSP and is within the through cycle. Within the through cycle, the logical number specified by the cut-through start instruction signal (AN number: 0180-XXXXXXX)
, The telephone voting call that first accessed is able to access the network service control station NSP (conditions in the network service control station NSP). 3. The plan provider has not reached the limit number (total number of calls accepted as through calls) specified at the time of application. It is decided that the plan provider terminal IP is idle.

[0008]

In such a conventional example, when the cut-through control is started, all the subsequent control is performed according to a predetermined timing schedule, so that the incoming call to the plan provider terminal IP is made. Even if an unexpected situation occurs such that a through start instruction is not sent to the next subscriber line exchange GC if the through cycle time does not elapse even after the call (through call) disappears, it cannot be dealt with. .

Therefore, the plan provider terminal IP may not be able to receive a sufficient through call only by following the through cycle determined by the number of lines of the plan provider terminal IP.

Further, the cut-through control of the subscriber line exchange GC is performed by a through cycle time (cut-through maintaining time) included in a through start instruction from the network service management station NSSP.
Since it operates based on the window repetition period (cut-through stop time), it is necessary to send an instruction to end the cut-through control from the network service control station NSP to each subscriber line exchange GC when the planning is completed. Yes, the control method leads to congestion of control signals.

In the conventional cut-through control method, the number of exchanges that simultaneously start call processing (the number of simultaneous cut-through start exchanges, the number of individual exchanges accommodated in the subscriber line exchange GC) is set. Since the number of calls that can be simultaneously processed by the network service control station NSP is divided by the number of telephone numbers (AN) of options provided in one plan, all incoming calls that can be simultaneously processed by the network service control station NSP are However, since it is impossible to simultaneously respond to the plan provider terminal IP, there is a possibility that a large number of calls connecting the busy tone may occur.

[0012] The present invention has been made under such a background, and provides a call connection control method adapted to the incoming call characteristics of a telephone voting call and capable of obtaining the call connection expected by the project provider. The purpose is to provide.

[0013]

A first aspect of the present invention is a switching connection control method for connecting an incoming call, which is characterized by a time T after receiving a start instruction from a host device.
Then, the incoming call connection is performed according to the procedure set up only, and after the time T has elapsed, control is performed to wait for an instruction from the host device. As a result, it is possible to avoid congestion of control signals and to instruct fine-grained incoming call connection control.

The time T is preferably an average call time of incoming calls. As a result, incoming calls are less likely to be interrupted at the destination, and incoming calls can be obtained at almost regular intervals.
The time T is preferably set to 10 to 20 seconds.

A second aspect of the present invention is a subscriber line exchange, which is characterized by executing an incoming call connection in a procedure set for a time T after receiving a start instruction from a host device. After the lapse of the time T, it is in the state of being controlled to the instruction waiting state. If this time T is set to the average call duration of incoming calls as described above, the incoming call connection of one subscriber line exchange can be performed at the same time when the incoming call connection of one subscriber line exchange is completed.

A third aspect of the present invention is a switching system, which is characterized in that a plurality of the subscriber line exchanges, one control station provided as an upper device thereof, and the subscriber line exchanges. And a called terminal connected to each of the control terminals, the control station stores a database of connection control procedure information, and the procedure information read from the database to the subscriber line exchange in an instruction waiting state. And a means for transferring the procedure information transferred in the instruction waiting state as the procedure. By providing the same number of subscriber line exchanges and the number of called terminals, it is possible to reduce the number of incoming calls to which the busy tone must be connected.

A large number of subscriber line exchanges are prepared, and the control station has means for selectively transmitting the start instruction to a plurality of subscriber line exchanges from among the plurality of subscriber line exchanges. It is desirable to prepare. This allows
You can collect voting calls by phone without being biased to a specific area.

As a result, it is possible to obtain the connection of the incoming call expected by the plan provider, matching the incoming call characteristics of the telephone voting call.

[0019]

In the exchange belonging to the subscriber's line exchange that has received the cut-through start instruction, the incoming call connection control is performed only for a predetermined time T from this instruction, and thereafter, it shifts to the instruction waiting state waiting for this instruction. At the end of planning, it is not necessary for the network service management station to instruct each subscriber line exchange to terminate cut-through, and it is possible to prevent congestion of control signals in the signaling network. In addition, since it is possible to prevent congestion of the control signal, it is possible to give detailed instructions.

For example, by sending a cut-through start instruction to a randomly selected subscriber line exchange, it is possible to collect telephone voting calls without regional bias, and thus faithfully reflect the will of the voters. Can be made.

By setting the transmission interval of the cut-through start instruction transmitted from the network service management station to the subscriber line exchange to the above-mentioned predetermined time T, at the same time when the connection control in one subscriber line exchange is completed, The connection control of the subscriber's line exchange is started, and efficient cut-through control can be performed.

If the predetermined time T is the average call time at the called party, the call from the next subscriber line exchange can be received immediately after the call at the planning provider terminal at the called party ends. It is possible to reduce the state where the incoming call is interrupted at the plan provider terminal.

By making the number of exchanges belonging to the subscriber's line exchange (the number of simultaneous cut-through start exchanges) correspond to the number of plan provider terminals at the destination, the plan provision is provided for the call instructed by the network service control station. It is possible to reduce the number of incoming calls that cannot be answered by the caller terminal.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a diagram showing cut-through control according to the embodiment of the present invention. FIG. 2 is a diagram showing a cut-through start instruction state according to the embodiment of the present invention. FIG. 3 is a diagram showing a state of an incoming call. FIG. 4 is a diagram showing a cut-through control state on the exchange side according to the embodiment of the present invention. See Figure 5 for the overall configuration of the intelligent network.

The present invention is a switching connection control method for connecting an incoming call, and is characterized in that it is set for a time T after receiving a start instruction from the network service management station NSSP as a higher-level device. The procedure is to make an incoming call connection, and after the time T has elapsed, control is made to wait for an instruction from the network service management station NSSP.

A start instruction is issued by a plurality of subscriber line exchanges GC.
About is done randomly. Further, the transmission interval of the start instruction is set to a predetermined time T. In the embodiment of the present invention, this predetermined time T is the average call time at the plan provider terminal IP. Also, the number of exchanges belonging to the subscriber line exchange GC is made to correspond to the number of project provider terminal IPs.

Next, the operation of the embodiment of the present invention will be described. As shown in FIG. 1, in the embodiment of the present invention, the through cycle is not fixed but is fixed and the network service management station NSSP gives an instruction to start under the following operating conditions. The conditions are: (a) The through cycle is set to 15 seconds in order to realize the through connection with one of the option numbers provided by the exchange in 15 seconds per line. The window repetition period is unnecessary in the present invention. At this time, if the message of the instruction (through start instruction) issued from the network service management station NSSP to the exchange has the same format as the conventional format, the window repetition period may be set to 0 second. Further, (b) the number of exchanges instructing the start of through in the same cycle is made to correspond to the number of project provider terminals IP.

Accordingly, the control on the exchange side is changed to the following conditions. The conditions are: (c) When the slew start instruction is received, the slew is automatically stopped after the slew cycle expires (15 seconds). At this time, again, the network service control station NSP
The through stop state is continued until there is a further through start instruction. Furthermore, (d) When there is one incoming call to the exchange within the through cycle, the call is connected to the plan provider terminal IP, and the subsequent incoming calls are cut calls until the through cycle expires ( Unconnected call).

Further, in order to prevent the exchange for the through call from being fixed, the subscriber line exchange GC to be selected is selected.
Is a random extraction. In the conventional example, the subscriber line exchange G
Until C receives the cut-through stop instruction, it repeats the start or stop in accordance with the through cycle and the window repeating cycle. In the present invention, the subscriber line exchange GC waits for the next instruction after the completion of the through cycle. Since the transition is performed automatically, it is not necessary to distribute the cut-through stop signal to all subscriber line exchanges GC at the end of the project.

Thus, while the cut-through stop signal is being distributed until now, a new cut-through start signal cannot be sent, but the start signal can be sent immediately after the cut-through stop.

FIG. 2 illustrates cut-through control to the subscriber line exchange GC. Here, the calculation of the through cycle of the conventional example shows that the total number of exchanges providing the plan is 100, which is caused by the system processing capacity of the transit exchange (STP) provided in the common line signaling network NW not shown here. The number of simultaneous reception calls is 60, the number of telephone numbers (AN) corresponding to the options of the telephone voting service is 6, and the average holding time is 15
Second, assuming that the number of lines of the project provider terminal IP is 5, the window repetition period = (100 × 6 × 15) / 5 =
1800 (seconds) Simultaneous cut-through start Number of exchanges = 60/6 = 10 (units) Through cycle = (10/10) × 1800 = 180 (seconds) Therefore, as shown in FIG. 3, in the cut-through control, the telephone number AN which is an option provided by the plan for each exchange is planned.
Control is performed so that only the first incoming call of 1 to AN6 is connected to the plan provider terminal IP, and other incoming calls are connected to the caller by instructing the caller that the call cannot be connected at the exchange. ing.

For this reason, for a large number of telephone voting calls that occur almost at the same time as the start of cut-through, the control is performed so that only the first incoming call is connected to the plan provider terminal IP. Calls have the characteristic of being concentrated at the start of cut-through. Therefore, in the conventional example, when the through period that fluctuates depending on the number of IPs of the plan provider terminals is long, there may be no incoming call for a while after the end of the response (average call time). There was a risk that the project would end without any incoming calls.

Therefore, in the present invention, the call processing is performed for a predetermined time T after receiving the cut-through start instruction in the exchange, and thereafter, the standby state is waited for the cut-through start instruction. Further, the duration of the call processing performed after receiving the cut-through start instruction in the exchange is set to a constant value. In the embodiment of the present invention, the duration of the call processing is set to be equal to or slightly longer than the average call time at the plan provider terminal IP.

Further, in the embodiment of the present invention, the number of simultaneous cut-through start exchanges is made to correspond to the number of planning provider terminals IP. The total number of exchanges providing the plan is 100, the number of simultaneous reception calls due to the processing capacity of the repeater exchange (STP) of the common line signaling network NW (not shown) is 60, and the telephone number (AN) corresponding to the option of the telephone voting service Assuming that the number is 6, the average holding time is 15 seconds, and the number of lines of the plan provider terminal IP is 5, the number of simultaneous cut-through start exchanges is the plan provider terminal I.
Assuming that the through cycle is set to be the same as the average talk time when it is equal to the number of P, the window repeat cycle is: through cycle × (total number of exchanges / number of simultaneous cut-through start exchanges), so window repeat period = 15 × (100/5) = 30
It becomes 0 (seconds). The number of calls to the repeater exchange (STP) is the number of simultaneous cut-through start exchanges x the number of telephone numbers, so 5 x 6 = 30 calls, which shows that the plan has more margin than the processing capacity of the repeater exchange (STP). . Also, by making the number of simultaneous cut-through start exchanges equal to the number of plan provider terminals IP, the number of calls that received a connection instruction to the plan provider terminals IP becomes equal to the number of plan provider terminals IP. The effect that the number of calls connecting the busy tone during IP talking can be considerably reduced can be expected.

If the number of simultaneous cut-through start exchanges is set to be twice the number of IPs of the plan provider terminals, and the through cycle is set to be the same as the average talk time, the window repetition period is: through cycle × (total number of exchanges / Simultaneous cut-through start switch number), so window repetition period = 15 x (100 / (2 x
5)) = 150 (seconds), and the number of calls to the repeater exchange (STP) is the number of simultaneous cut-through start exchanges × the number of telephone numbers, so 10 × 6 = 60 calls and the processing capacity of the repeater exchange (STP) It turns out that this is a project at the limit of. Therefore, if the number of simultaneous cut-through start exchanges is more than twice the number of IPs of the planning provider terminals, congestion of the transit exchange (STP) will be caused. Therefore, it can be seen that there is an upper limit to the correspondence between the number of simultaneous cut-through start exchanges and the number of project provider terminal IPs.

Further, by making the number of simultaneous cut-through start exchanges twice as many as the number of IPs of the plan provider terminal, the call for which the instruction to connect to the plan provider terminal IP is received is the plan provider terminal I.
Since it is twice the number of P, there is a possibility that a considerably larger number of calls will be calls connecting the busy tone during the busy of the project provider terminal IP as compared with the above-mentioned control.

From the above, in the present invention in which the number of simultaneous cut-through start exchanges corresponds to the number of plan provider terminals IP, a particularly desirable correspondence is that the number of simultaneous cut-through start exchanges equals the number of plan provider terminals IP. It is thought to be a relationship.

[0038]

As described above, according to the present invention,
By adopting a control method adapted to the incoming call characteristics of a large number of telephone voting calls simultaneously, it is possible to obtain the call connection expected by the project provider and contribute to the improvement of the telephone voting service.

[Brief description of drawings]

FIG. 1 is a diagram showing cut-through control according to an embodiment of the present invention.

FIG. 2 is a diagram showing a cut-through start instruction state according to the embodiment of the present invention.

FIG. 3 is a diagram showing a state of an incoming call according to the embodiment of the present invention.

FIG. 4 is a diagram showing a cut-through control state on the exchange side according to the embodiment of the present invention.

FIG. 5 is an overall configuration diagram of an intelligent network.

FIG. 6 is a diagram showing a transfer state from a network service management station to a subscriber line exchange.

FIG. 7 is a conceptual diagram of a voting service using a telephone terminal.

FIG. 8 is a diagram showing a conventional example of cut-through control.

[Explanation of symbols]

 ARE voice response device AN, AN1 to AN6 telephone number BT busy tone GC subscriber line switch IP planning provider terminal NSP network service control station NSSP network service management station NW common line signaling network

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kenji Aoyagi 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Inside Nippon Telegraph and Telephone Corporation (72) Masataka Kato 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Fumiaki Okawara 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Inventor Jun Funasako 1-1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation

Claims (6)

[Claims] 1. In a switching connection control method for connecting an incoming call, an incoming call connection is made in a procedure set for a time T after receiving a start instruction from a host device, and after the time T has passed, the host A switching connection control method characterized by controlling a state of waiting for an instruction from a device. 2. The switching connection control method according to claim 1, wherein the time T is an average call time of incoming calls. 3. The switching connection control method according to claim 1, wherein the time T is set between 10 and 20 seconds. 4. An exchange, wherein after receiving a start instruction from a host device, an incoming call connection is executed according to a procedure set for a time T, and after the time T has elapsed, the exchange is controlled to be in an instruction waiting state. . 5. A plurality of exchanges according to claim 4, a control station provided as a host device for the exchanges, and a called terminal connected to each of the exchanges. Of the procedure information stored in the database, and means for transferring the procedure information read from the database to the exchange in the instruction waiting state, wherein the exchange transfers the procedure transferred in the instruction waiting state. An exchange method comprising means for setting information as the procedure. 6. A plurality of the exchanges are prepared, and the control station comprises means for selectively transmitting the start instruction to a plurality of the exchanges sequentially from the plurality of the exchanges.
Exchange method described.