JPH01146452A - Destination bypass selection system - Google Patents

Abstract

PURPOSE:To improve the operability for a caller subscriber considerably by registering plural subscribers as the same bypass group to the caller device so as to allow the caller device to make connection to an optional idle subscriber with the similar operation as if plural subscribers had formed a representative group. CONSTITUTION:The caller device 100 is provided with a bypass group registration means 200, a signal tone identification means 300 and a bypass selection means 400. The bypass group registration means 200 registers plural subscriber numbers (N1-Nn) as the same bypass group. A signal tone identification means 300 identifies a signal tone returned from an incoming communication line 500 after the subscriber numbers (N1-Nn) belonging to the bypass group is sent to the incoming communication line 500 as the called party number. When the signal identification means 300 discriminates the signal tone returned from the incoming side communication line 500 as the incoming connection disable tone, the bypass selection means 400 sends other subscriber numbers (N1-Nn) belonging to the same bypass group as the called party number to the incoming side communication line 500 sequentially.

Description

[Detailed Description of the Invention] [Summary] Destination detour selection that enables multiple subscribers who are not registered as representative subscribers to make the same detour selection as that of the representative subscriber at the originating device in an automatic switching network. Regarding the method, the purpose is to enable incoming calls to any subscriber who is not registered as a representative group with the same simple operation as when they are registered as a representative group. A diversion group registration means for registering a plurality of subscriber numbers as the same diversion group, and a subscriber number belonging to the diversion group is sent as a called party number to a called party's communication line and then returned from the called party's communication line. Signal tone identifying means for identifying a signal tone; and when the signal tone identifying means identifies the signal tone returned from the called party's communication line as an incoming call disconnection tone, the called party number and another person belonging to the same diversion group as the called party number are identified. A detour selection means for sequentially transmitting subscriber numbers to a called communication line is provided in a calling side device of an automatic switching network.

[Industrial application field]

The present invention relates to a destination detour selection method that enables a plurality of subscribers who are not registered as representative subscribers in an automatic switching network to make the same detour selection as that of the representative subscriber at the originating device.

[Conventional technology]

FIG. 5 is a diagram showing an example of an automatic switching network to which the present invention is applied.

In FIG. 5, a subscriber 2 accommodated in the originating exchange 1 and a subscriber 4.5 accommodated in the terminating exchange 3
and 6, subscriber 4.5
and 6 are registered in the terminating exchange 3 as subscribers constituting a representative group, then the originating subscriber 2 is the subscriber number Nn assigned to any terminating subscriber (for example 4).
If you select , the terminating exchange 3, which has received the subscriber number NI from the originating exchange 1 via the relay vA7, will search for other vacant subscriptions belonging to the same representative group if the terminating subscriber 4 is busy. (for example, 6) to make an incoming call connection.

In such a case, if the terminating subscribers 4.5 and 6 are not registered in the terminating exchange 3 as subscribers constituting a representative group, the originating subscriber 2 selects the first selected terminating subscriber 4.
If terminating subscriber 4 is busy, select another subscriber (e.g. 5) after releasing the call to terminating subscriber 4; After releasing the call for 5, it is necessary to select yet another subscriber (for example 6).

[Problem that the invention seeks to solve]

As is clear from the above explanation, in conventional automatic switching networks, if subscribers 4.5 and 6 are not registered as a representative group, any vacant subscriber among subscribers 4.5 and 6 The originating subscriber 2 who wishes to make a connection has to try to make an incoming connection to each subscriber 4, 5 and 6 until he/she encounters a free subscriber, posing the problem of requiring many operations.

The present invention makes it possible to connect a plurality of incoming subscribers who are not registered as a representative group to any subscriber with the same simple operation as when they are registered as a representative group. purpose.

[Means for solving problems]

FIG. 1 is a diagram showing the principle of the present invention.

In FIG. 1, 100 is a calling side device of an automatic switching network;
00 is the receiving side communication line.

200 is a detour group registration means provided in the originating device 100 according to the present invention.

Reference numeral 300 denotes a signal tone identifying means provided in the transmitting side device 100 according to the present invention.

Reference numeral 400 denotes a detour selection means provided in the originating device 100 according to the present invention.

[Effect]

The detour group registration means 200 registers a plurality of subscriber numbers (Nl to Ni) as the same detour group.

The signal tone identifying means 300 identifies the signal tone returned from the input 00 belonging to the detour group.

The detour selection means 400 selects another subscriber number belonging to the same detour group as the called party number when the signal tone identification means 300 identifies the signal tone returned from the called communication line 500 as an incoming call connection failure tone. (N+ to Nn) are sequentially sent to the receiving side communication line 500.

Therefore, if multiple subscribers are registered in the same detour group on the originating device, the originating device will be able to connect to any available subscriber using the same operation as if the multiple subscribers constituted a representative group. , greatly improving the usability of calling subscribers.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a diagram showing an originating exchange according to an embodiment of the present invention, FIG. 3 is a diagram illustrating a detour selection process in FIG. 2, and FIG. 4 is a diagram showing a connection according to an embodiment of the present invention. It is a diagram showing a process. Note that the same reference numerals indicate the same objects throughout the figures. The target automatic switching network is as shown in FIG.

In FIG. 2, the originating side exchange 1 is shown as the originating side device 100 in FIG. 1, and the trunk line 7 leading to the terminating side exchange 3 (FIG. 5) is shown as the terminating side communication line 500 in FIG. In addition, a detour group registration section 121 and a detour selection section 122 are provided in the central control unit (CC) 12 as the detour selection means 200 and detour selection means 400 in FIG. A signal tone detection device (DET) 17 is provided as the identification means 300.

2 to 5, when subscribers 4.5 and 6 accommodated in the terminating exchange 3 are not registered in the terminating exchange 3 as subscribers constituting a representative group, the subscriber 4.
．． If a representative group is configured for 5 and 6, the originating subscriber 2 who wishes to make an incoming call connection will be connected to the subscriber 4.
In order to register subscribers 4.5 and 6 as the same diversion group G, a call is made to the originating exchange 1 to which they belong, and after dialing a special number predetermined for diversion group registration, a call is made to subscribers 4.5 and 6. When the assigned subscriber numbers Nr, Nz, and N3 are dialed in sequence, the central control unit 12 receives the special number for detour group registration and activates the detour group registration section 121.

The detour group registration unit 121 creates a detour group G1 in the main memory (MM) 13, and subsequently stores the received subscriber numbers NI and Nt.
and Nn sequentially, and the main memory (MM)
The position information of the detour group G is stored in the subscriber data SD provided in the subscriber 13 that stores the attributes of the originating subscriber 2.

Note that the originating subscriber 2 has other subscriber numbers Nh, N8, and Nn.
It is assumed that a detour group Gz storing Nk and Nk is also registered.

In this state, when the originating subscriber 2 makes a call to any subscriber belonging to the detour group G1 and dials the subscriber number NI of the subscriber 4, the originating exchange l
refers to the subscriber data SD corresponding to the originating subscriber 2,
When it is determined that the detour groups Gl and G2 are registered, the detour selection unit 122 is activated.

The detour selection unit 122 refers to the detour group G and G2 linked to the subscriber data SD corresponding to the originating subscriber 2, and when it identifies that the received subscriber number N1 is stored in the detour group G1, ( Step S1 in FIG. 3), by analyzing the received subscriber number Nn, the trunk (TRK) 14 accommodating the trunk line 7 leading to the destination exchange 3 is selectively captured and connected to the trunk line 7 (step S1). S2), a multi-frequency signal transmitter (MF) via the network (NW) 11
S) 15 and transmits the subscriber number N1 from the multi-frequency signal transmitter 15 (step S3).

On the other hand, when the destination exchange 3 detects an incoming call to the trunk (TRK) 31 (FIG. 4(a)) that accommodates the trunk line 7, it connects to the multifrequency signal receiver (VFR) 32,
The subscriber number Nn sent from the originating exchange 1 is received.

The above connection state is shown in FIG. 4(a).

Upon receiving the subscriber number N1, the terminating exchange 3 tries to make an incoming call connection to the subscriber 4, and when it detects that the subscriber 4 is busy, it returns a busy tone BT to the trunk line 7.

On the other hand, in the originating exchange 1, the multi-frequency signal transmitter 15
When the subscriber number Nn has been sent from , the detour selection unit 12
2 releases the connection between the trunk 14 and the multi-frequency signal transmitter 15 via the network 11, connects the trunk 14 and the signal sound detection device 17 via the network 11, and detects the signal sound returned from the trunk line 7. It is monitored (step S4).

The above connection state is shown in FIG. 4(b).

When the busy tone is returned from the receiving exchange a3 via the trunk line 7, the signal tone detection device 17 identifies the returned signal tone as a busy tone based on the intermittent period or signal frequency (step S5) - Once the trunk 14 is restored, the outgoing connection to the trunk line 7 is released (step 36).

Next, the detour selection unit 122 refers to the detour group Gt identified in step S1 and selects subscriber numbers (hereinafter collectively referred to as detour numbers Nn) other than the sent subscriber number N1 (step S7).

Currently, subscriber numbers N2 and Nn other than subscriber number Nn are registered in detour group G1 (step S8).
For example, by extracting the subscriber number N2 along with the detour number Nn in the order of registration, and analyzing the extracted detour number Nn=Nn, the trunk 14 that accommodates the trunk line 7 leading to the destination exchange 3 is selectively captured and relayed. Make an outgoing connection to line 7 (
Step S9), the multi-frequency signal transmitter 15 is connected via the network 11, and the detour number Nn=N2 is sent from the multi-frequency signal transmitter 15 (step 510).

Meanwhile, the detour selection unit 122 connects the calling subscriber 2 and the talkie device (TKE) 16 via the network 11,
The message sent by the talkie device 16 informing of the detour connection is sent back to the originating subscriber 2 (step 511).

When the destination exchange 3 detects an incoming call to the trunk 31 that accommodates the trunk line 7, it connects to the multifrequency signal receiver 32 in the same manner as described above, and receives the detour number Nn=Nn sent from the origination exchange at. Receive.

The above connection state is shown in FIG. 4(C).

Upon receiving the detour number N-=Nz, the receiving side exchange 3 tries to connect the call to the subscriber 5, and when it detects that the subscriber 4 is busy, it returns a busy tone BT to the trunk line 7. .

On the other hand, in the "originating exchange", the multi-frequency signal transmitter 15
When the detour number Nn=Nn has been sent, the detour selection unit 122 releases the connection between the trunk 14 and the multi-frequency signal transmitter 15 and connects the trunk 14 and the signal sound detection device 17 in the same manner as described above. , the signal tone returned from the trunk line 7 is monitored (step S4).

The above connection state is shown in FIG. 4(d).

When the busy tone is returned from the destination exchange 3 via the trunk line 7 and the signal tone detection device 17 identifies it as a busy tone as described above (step S5), the detour selection unit 122 performs the same process as described above. Refers to the detour group G1, extracts the remaining subscriber number N3 along with the detour number Nn, and attempts a connection using the detour number Nn=N3 (steps S6 to 511).

Receiving the detour number Nn=Nn, the terminating exchange a3 tries to make an incoming call connection to the subscriber 6, and when it detects that the subscriber 6 is free, it sends a paging signal RG to the subscriber 6 and connects the trunk line to the subscriber 6. 7, the ring tone RB is returned.

The above connection state is shown in FIG. 4(e).

In the originating exchange 1, the ringing tone is returned from the terminating exchange 3 via the trunk line 7, and the signal tone detection device 17 identifies the returned signal tone as a ringing tone based on the intermittent period, signal frequency, etc. Then (step S5), the detour selection unit 122 releases the connection between the trunk 14 and the signal tone detection device 17 through the network 11, as well as the connection between the originating subscriber 2 and the talkie device 16, and disconnects the originating subscriber 2 and the trunk 14.
and execute call setting processing (step 5L2).
.

The originating subscriber 2 listens to the ring tone RB sent back from the terminating exchange 3 via the trunk line 7 and waits for a response from the terminating subscriber, and when the subscriber 6 responds, starts talking.

The above connection state is shown in FIG. 4(f) and FIG. 4(6).

Note that the receiving exchange 3, which attempted to connect the incoming call using the detour number Nn=Nn, detects that the subscriber 6 is also busy,
When the busy tone BT is returned to the originating exchange 1 via the trunk line 7, the originating exchange 1 detects the signal tone detecting device 17.
The detour selection unit 12 identifies the returned signal tone as a busy tone.
2 attempts to select the detour number N1 by referring to the detour group G+ as described above (step S7), but since all the subscriber numbers Nn, Nn, and N3 in the detour group G1 have already been sent, The detour number Nn does not exist (step S8).

In such a state, the detour selection unit 122
The connection between the trunk 14 and the signal tone detection device 17 and the connection between the originating subscriber 2 and the talkie device 16 are released,
A busy tone BT is returned to the originating subscriber 2.

The above connection state is shown in FIG. 4 Q'1).

The originating subscriber 2 who has heard the busy tone BT determines that all subscribers 4, 5 and 6 belonging to the detour group G1 are in the busy state, and abandons the incoming call connection to the detour group G1.

As is clear from the above description, according to the present embodiment, when the originating subscriber 2 makes an incoming call connection to the subscribers 4.5 and 6 registered as the detour group G1 in the originating exchange 1, the originating subscriber 2 selects an arbitrary subscriber number N1. Subscribers 4.5 and 6 by simply selecting
It becomes possible to connect to any vacant subscriber within
．． If 5 and 6 are registered as representative groups, the operation is similarly simplified.

Note that FIGS. 2 to 5 are only one embodiment of the present invention, and the detour group is not limited to, for example, consisting of subscribers 4.5 and 6 (but there are many other examples). Although modifications of the above are considered, the effects of the present invention do not change in any case.Also, the originating side device 100 equipped with the detour group registration means 200, the signal sound identification means 300, and the detour selection means 400 is not shown in the figure. It is not limited to the originating exchange 1,
Many other modifications may be considered, such as an automatic private branch exchange accommodating the originating subscriber 2 or a terminal device used by the originating subscriber 2, but the effects of the present invention remain the same in either case.

〔Effect of the invention〕

As described above, according to the present invention, when a plurality of subscribers are registered as the same detour group in the originating device, the originating device recognizes that the plurality of subscribers constitute a representative group and uses the same operation to select any free space. It becomes possible to connect to the subscriber, and the operability of the originating subscriber is greatly improved.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the principle of the present invention, FIG. 2 is a diagram showing an originating exchange according to an embodiment of the present invention, FIG. 3 is a diagram illustrating the detour selection process in FIG. 2, and FIG. 4 is a diagram illustrating the detour selection process in FIG. FIG. 5 is a diagram showing a connection process according to an embodiment of the present invention, and is a diagram showing an example of an automatic switching network to which the present invention is applied. In the figure, 1 is the originating exchange, 2.4.5.6 is the subscriber, 3 is the terminating exchange, 7 is the trunk line, 11 is the network (NW), 12 is the central control unit (CC), and 13 is the main Storage device (MM), 14 and 31 are trunks (TRK)
, 15 is a multi-frequency signal transmitter (MFS), 16 is a talkie device (TKE), 17 is a signal tone detector (DET),
32 is a multi-frequency signal receiver (MFR), 100 is a transmitting side device, 121 is a detour group registration unit, 122 is a detour selection unit, 20
0 is a detour group registration means, 300 is a signal tone identification means, 400
5 indicates a detour selection means, and 500 indicates a receiving side communication line. Agent Patent attorney Sada Igata - 2F' e e, # (7> ) * VO Kaya 1 Button Kohatsuro (= J 已 SENTSU Kenshijin Zan゛茅 2 zu Kaya 3 Sotang Hatsurou i = J Otsuma Pillow A rod 42 4 (chimi sun moon power Y shi and V mouth V length J and season rod 5
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Claims (1)

[Scope of Claims] Detour group registration means (200) for registering a plurality of subscriber numbers (N_1 to N_n) as the same detour group; After being sent as a number to the called side communication line (500),
a signal sound identification means (300) for identifying a signal sound returned from the called communication line (500);
When the signal tone returned from 00) is identified as an incoming connection failure tone, other subscriber numbers (N_1 to N_n) belonging to the same detour group as the called party number are sequentially connected to the called party's communication line (500). A destination detour selection method characterized in that a detour selection means (400) for sending a call to a destination is provided in a calling side device (100) of an automatic switching network.