JPH01318450A - Incoming number setting system - Google Patents

Abstract

PURPOSE:To set a call with no consciousness of the number plan of a 2nd service integrated digital network by adding a division code between a subscriber number and a terminal number in case the incoming subaddress included in a call setting information consists of the subscriber number and the terminal number of the 2nd service integrated digital network. CONSTITUTION:A private branch exchange system 2 edits the call setting information including an incoming subaddress DAS. This address DAS consists of an originating cell trunk line number NA='777-0' set for transmission to a trunk line 31, a subscriber number NS='0077-06-555-1111' added to a subscriber line 32 from a service integrated digital network ISDN3, a division code D='*', and a terminal number NT='4' added to a terminal equipment TE321 respectively. Then the system 2 sends the address DSA to a service integrated digital network 1. Thus a central controller 211 of a private branch switchboard 21 analyzes the subaddress DSA and selects a junction line 23 reaching a private branch switchboard 22 as a route to reach the line 31. Then the edited call setting information is sent to a central controller 221 of the switchboard 22.

Description

[Detailed Description of the Invention] [Summary] Regarding the called party number setting method in a private branch exchange system accommodated in a plurality of service integrated digital networks, a number is set from a first service integrated digital network via a second private branch exchange system. When requesting the setting of a call from a first integrated service digital network to a second integrated service digital network via a private branch exchange system, with the purpose of making it possible to set up calls that are relayed to the integrated service digital network. In this case, when the called subaddress included in the call setup information transmitted from the first integrated service digital network to the private branch exchange system is composed of the subscriber number and terminal number of the second integrated service digital network, the subscriber number A delimiter is inserted between the terminal number and the terminal number, and the call destination subaddress included in the call setup information transmitted from the first service integrated digital network is used to send a central office line for outgoing connection to the second integrated service digital network. If the local line calling number identification means identifies whether the called subaddress includes the local line calling number, then Kitsubua)
・Delimiter code identification means for identifying whether or not a delimiter code is included in the response; Of the subaddress, the part before the delimiter is set as the called number, the part after the delimiter is set as the called subaddress, and called number setting means is provided for editing call setting information to be sent to the second service integrated digital network. Configure it as follows.

[Industrial application field]

The present invention relates to a private branch exchange system, and more particularly to a called party number setting method in a private branch exchange system accommodated in a plurality of integrated digital networks.

With the spread of integrated services digital fiI (ISDN), it is possible to accommodate one private branch exchange system or multiple integrated services digital networks, such as an integrated services digital network for domestic communications and an integrated services digital network for international communications. is assumed.

In such a case, it is assumed that a call setup from one integrated services digital network to another integrated services digital network via a private branch exchange system is required.

[Conventional technology]

FIG. 5 is a diagram showing an example of a conventional private branch exchange system, FIG. 6 is a diagram showing an example of call setting information, and FIG. 7 is a diagram illustrating the route setting process in FIG. 5.

In FIG. 5, the first service integrated digital network 1
(hereinafter simply referred to as the Integrated Services Digital Network (ISDN) 1) is connected to a terminal equipment (TE) via a subscriber line
) 111 is accommodated, and a private branch exchange system 2 is also accommodated via the central office line 12.

The private branch exchange system 2 includes private branch exchanges (PBX) 21 and 22, which are connected to each other by a trunk line 23. A central office line 12 accommodated in an integrated services digital network (ISDN) is connected to a private branch exchange (PBX) 21, and the private branch exchange (PBX) 22 is connected to a second integrated services digital network via a central office line 31. 3 (hereinafter simply referred to as Service Integrated Digital Network (l5DN) 3)
is housed in.

Now, the user of the terminal device (TE) 111 is connected to the terminal device (TE) accommodated in the private branch exchange system 2 via the extension 24.
) 241, the Service Integration Digital'
Subscriber number N assigned to central office line 12 by tR (ISDN) 1
5-ro 3-333-2222" as the called party number DA,
Extension number NP assigned to extension 24 by private branch exchange system 2
= r777-4444J and the terminal number N assigned to the terminal equipment (TE) 241, = r3J as the destination subaddress DS
When the known call setting information shown in FIG. 2222J) is selected and captured, and via the central office line 12, the called party number DA (= roa-33
3-2222J) and destination subaddress DSA (-r
777-4444J-+-r3J).

In private branch exchange system 2, a private branch exchange (PBX)
2! 7, step SL), central Control device (CC) 2
Based on the numbering plan of private branch exchange system 2 recognized by 11, extension number NP (-r77'l-4444J)
is included (step S2), the extension number N, (=l177-4) is selected from the destination subaddress DSA.
444J) to called party number DA, and other terminal numbers N,
(-r3J) is left in the called party subaddress DSA (step S3), and the called party number DA (-r777-4444J) in the edited call setting information is added to the extension 24.
Attempt to set a route leading to (step S4).

That is, the central control unit (CC) 211 receives the callee DA (=
r777-4444J) and private branch exchange 1 (PB
Selectively capture the trunk line 23 leading to X) 22 and connect it to the private branch exchange (
When the edited call setting information is transmitted to the central controller (CC) 221 of the PBX 22, the central controller (CG) 22
1 analyzes called party number DA (= r777-4444J), selects and captures extension 24, and selects extension number NP (= "77
7 4444'') as the called party number DA, and the terminal number N7 (
- Edit the call setup information with "3J) as the destination subaddress DSA, and send it to the terminal device ('1゛E) 24 via extension 24.
1 and 242.

The terminal equipment (TE) 241 and 242 analyze the called subaddress DSA of the call setup information transmitted via the extension 24, determine that the terminal equipment (TE) 241 matches the own terminal number NT, and use the known called subaddress DSA. Perform call processing.

Next, the user of the terminal equipment (TE) 111 connects to the integrated service digital network (ISD) via the private branch exchange system 2.
N) A terminal device accommodated in 3 via the subscriber line 32 (
In order to communicate with TE) 241, the subscriber number N5-roa-333-2222J assigned to the central office line 12 by Service Integrated Digital vA (ISDN) 1 is set as the called party number DA.
The central office line calling number NA-r7770J determined by the private branch exchange system 2 to make a call to the station vA31, and the subscriber number N, -r007? assigned to the subscriber line 32 by the integrated services digital network (ISDN) 3? -06-555-1111J
and the terminal number N□- given to the terminal device (TE) 321.
r4J as the destination subaddress DSA and sends it to the integrated services digital network (ISDN) l, the integrated services digital network (ISDN) l selects and acquires the mu2 station green 12 as described above, and The called party number DA (-roa-33) is sent to the private branch exchange system 2 via line 12.
3-22!2”) and destination subaddress DSA (=
r777-OJ +r0077-06-555-111
1j + r4J).

In private branch exchange system 2, a private branch exchange (PBX)
The central control unit (CC) 211 of 21 analyzes the destination subaddress DSA included in the call setting information transmitted from the integrated services digital network (ISDN) 1 via the central office line 12 (step S1).

Note that the called party number DA of the call setting information sent from the private branch exchange system 2 to the integrated service digital network (IsDN) 3 via the central office line 31 includes the subscriber number Ns (-1) assigned to the subscriber line 32. -0077-06-555-11
] IJ), and the terminal number NT (
-r4j), but in the private branch exchange system 2, the Integrated Services Digital Network (ISDN)
3 numbering plan is not necessarily recognized, the called subaddress DSA (= r7
77-OJ + ro077-06-555-1111
J + r4J), called party number DAC=rO077-0
6-555-1111J) and destination subaddress DSA (
=NY-r4J) becomes impossible to separate.

Therefore, the central control unit (CC) 211 that analyzed the destination sub-address DSA in step S1 uses the extension number NP.
is not included (step S2),
It is determined that the call cannot be set up, and call abandonment processing is executed (step S5).

[Problem to be solved by the invention]

As is clear from the above explanation, in conventional private branch exchange systems, integrated services digital network (ISDN)
Incoming calls from 1 are limited to extensions accommodated in private branch exchange system 2 that recognizes the numbering plan, and are sent via private branch exchange system 2 to services that do not necessarily recognize the numbering plan. A call to Integrated Digital Network (ISDN) 3 is
It was being abandoned.

An object of the present invention is to also enable calls to be relayed from a first integrated services digital network to a second integrated services digital network via a private branch exchange system.

[Failure to solve the problem]

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

In FIG. 1, 1 is a first service integrated digital network, 3 is a second service integrated digital network, and 2 is accommodated in the first service integrated digital network 1 and the second service integrated digital network 3. This is a private branch exchange system.

Reference numeral 100 denotes a central office line calling number identifying means provided in the private branch exchange system 2 according to the present invention.

200 is a delimiter identification means provided in the private branch exchange system 2 according to the present invention.

Reference numeral 300 denotes called number setting means provided in the private branch exchange systems 1 and 2 according to the present invention.

[Effect]

from the first service integrated digital network 1 to the second service integrated digital IJi via the private branch exchange system 2.
13, the destination address included in the call setup information transmitted from the first integrated service digital network 1 to the private branch exchange system 2 is the subscriber of the second integrated service digital network 3. When the subscriber number is composed of a subscriber number and a terminal number, a delimiter is inserted between the subscriber number and the terminal number.

The central office line calling number identifying means 100 determines that the central office line calling number for outgoing connection to the second integrated service digital network 3 is included in the called subaddress included in the call setting information transmitted from the first integrated service digital network 1. Identify whether it is included or not.

The delimiter code identifying means 200 is the central line calling number identifying means 10.
0 identifies that the called subaddress includes the local line calling number, the called subaddress after the local line calling number is
Identifies whether a delimiter is included.

When the delimiter code identifying means 200 identifies that a delimiter is included in the incoming sub-address after the central office number, the called number setting means 300 sets the part of the called sub-address before the delimiter as the called number. , the part after the delimiter is the destination subaddress, and the second integrated service digital network 3
Edit the call setup information to be sent to 2.

Therefore, the private branch exchange system can set up a call from the first integrated services digital network through the private branch exchange system to the second integrated services digital network without knowing the numbering plan of the second Seehis integrated digital network. This improves the serviceability of the private branch exchange system.

〔Example〕

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

FIG. 2 is a diagram showing a private branch exchange system according to an embodiment of the present invention, FIG. 3 is a diagram illustrating a route setting process in the private branch exchange 21, and FIG. 4 is a diagram showing a route setting process in the private branch exchange TA22. It is a figure which illustrates. It should be noted that throughout the figures, 凰, , - symbols indicate the same object.

2 to 4, step S in FIG. 3 is used as the central line calling number identification means 100 in FIG.
A central controller (CC) 211 that executes step 12 is provided in the private branch exchange (PBX) 21, and also serves as the delimiter identification means 200 in FIG. 1 and performs step 5 in FIG.
A central control unit (CC) 211 that executes step S1 in FIG.
A central controller (CC) 211 that executes 4 and S16
is provided in the private branch exchange (PBX) 21, and a central controller (CC) that executes step S24 in FIG.
221 is provided in a private branch exchange (PBX) 22.

In FIGS. 2 to 4, a user of a terminal device (TE) 111 uses a service integrated digital Subscriber number N given by network (IS'DN) 1 to central office line 12 = r03-333-2222
．． J is called number DA, and private branch exchange system 2 is internal & H4.
Extension number NP = r777-4444J given to
Terminal number NT assigned to the terminal device (TE) 241 =
r3" as the destination subaddress DSA and sends it to the integrated services digital network (ISDN) 1, the integrated services digital network (ISDN) 1 selects and acquires the office line 12 in the same way as described above, and 12 to the private branch exchange system 2, called number DA (= r03-3
33-2222J) and destination subaddress DSA (=
+777-4444J + r3J).

In private branch exchange system 2, a private branch exchange (PBX)
21's central control unit (CC) 211 receives the destination subaddress DSA included in the call setup information transmitted from the integrated service digital '414 (ISDN) 1 via the central office line 12.
In step 512) of FIG. 3, it is determined that the central office line calling number N, (=r777-OJ) determined for calling from the private branch exchange system 2 to the central office line 31 is not included. , further identifies that the extension number Np (=r777-4444J) is included in the called sub-address DSA (step 517), and extracts the extension number N, (=r777-4444J) from the called sub-address DSA.
) to called party number DA, and other terminal number N? (=
At step 318), the call setting information with r3J) left in the called party subaddress DSA is edited, and the called party number DA (= r777-4444J) of the edited call setting information is used to call extension 24.
The trunk line 23 leading to the private branch exchange (PBX) 22 is selectively captured as a route to the private branch exchange (PBX) 22, and the edited call setting information is transmitted to the central control unit (CC) 221 of the private branch exchange (PBX) 22 (step 515).

The central controller (CC) 221 is a central controller (CC)
Called number DA included in the call setup information transmitted from 211
(= r777-4444J) (step 521 in Figure 4), extension number Np (= M777-4444
J), it is determined that the call is an extension call (step 522), and the called number DA (=r777-4444) is determined to be an extension call (step 522).
J) and captures extension 24 based on extension number NP (=r7
77-4444J) as the called party number DA, and the terminal number Nt(
=r3J) as the destination subaddress DSA, and transmits it to the terminal equipment (TE) 241 and 242 via the extension 24 (step 523).

The terminal equipment (TE) 241 and 242 analyze the called subaddress DSA of the call setup information transmitted via the extension 24, determine that the terminal equipment (TE) 241 matches its own terminal number Nt, and use the known called subaddress DSA. Perform call processing.

Next, the user of the terminal equipment (TE) 111 connects to the integrated service digital network (ISD) via the private branch exchange system 2.
N) A terminal device accommodated in 3 via the subscriber line 32 (
In order to communicate with TE) 241, the subscriber number Ns”r03-333-2222J assigned to the central office line 12 by Service Integrated Digital m (ISDN) 1 is set as the called party number DA.
The central office line calling number NA = r777-OJ determined by the private branch exchange system 2 to make a call to the central office line 31, and the subscriber number N5 = r0077-06 assigned to the subscriber line 32 by the integrated services digital network (ISDN) 3. -555-1111J, the delimiter D=r*J, and the terminal number N given to the terminal equipment (TE) 321, -"4", as the destination subaddress DS.
When the call setup information for A is edited and sent to the integrated services digital network (ISDN) 1, the integrated services digital network (ISDN) 1 selectively acquires the office line 12 in the same way as described above, and transmits the call via the office line 12. The private branch exchange system 2 receives the called number DA (=r03-333-2222J) and the called subaddress DSA (=r777-OJ +r0077).
-06-555-1111J +r*J+r4J).

In private branch exchange system 2, a private branch exchange (PBX)
The central control unit (CC) 211 of 21 analyzes the called subaddress DSA included in the call setting information transmitted from the integrated service digital m (ISDN) 1 via the central office line 12 (step 511), and the central control unit (CC) 211 of (-r
777-OJ) is included in step 512), and the central office line originating number N of the destination subaddress DSA.
.

(=r777-OJ) and thereafter, it is identified that the delimiter D (-"*") is included (Step 513), the part before the delimiter D (-r*J) from the destination subaddress DSA, Local line calling number NA (=r777-OJ
) and subscriber number N.

(=r0077-06-555-1111J) to the called party number DA, and delimiter code D from the called party subaddress DSA.
The part after (=r*j), that is, the terminal number Nt(-r4
In step 514), the called party number DA (= 1177-OJ00077-06-55) of the edited call setting information is edited.
5-1111'') selects and captures the trunk line 23 leading to the private branch exchange (PBX) 22 as a route to the station 8s31, and the central control unit (CC) 2 of the private branch exchange (PBX) 22
21 (step 51).
5).

The central controller (CC) 221 is a central controller (CC)
Called number DA included in the call setup information transmitted from 211
(-“111-0= →ro077-06-555-
1111J) in step 521) of FIG. 4, it is determined that it is not an extension incoming call because it is not extension number N (step 522), and the called number DA (= r777
-OJ r0077-06-555-1111J), it is determined that the call is to the central office line 31 accommodated in the Integrated Services Digital Network (ISDN) 3 based on the central office line originating number NA (=r777 0J), and the called number DA (= r777-
Subscriber number N, (-r0077-06-555-1111J), which is obtained by removing the office line origination number NA (-r777-0") from "OJ+r0077-06-555-1111")
) as the called party number DA, and the terminal number Nt (-r'4J)
Edit the call setup information with DSA as the destination subaddress, and connect the service integrated digital HN 5DN via the central office line 31.
)3 (step 524).

Service integrated digital wJ (I 5DN) 3 is called party number DA (= r0077-06-555-1111j)
Selectively acquire the subscriber line 32 determined by the subscriber number N
s (-r0077-06-555-1111J) as the called number DA and the terminal number N□ (=r4J) as the called subaddress DSA. ) 321 and 322.

Terminal equipment (TE) 321 and 322 are connected to subscriber line 32
Called subaddress DS of call setup information transmitted via
A is analyzed, and the terminal device (TE) 321 determines its own terminal number NT.
It is determined that they match, and known incoming call processing is executed.

Note that only one terminal equipment (TE) 321 is connected to the subscriber line 32, and the service integrated digital 14 (ISD
N) 3 does not assign a terminal number Nt to the terminal equipment (TE) 321, the user of the terminal equipment (TE) 111 may subscriber number N, = rol-333
-2222J is the called party number DA, and the central office line calling number NA required for the private branch exchange system 2 to make a call to the central office line 31 =
r777-0'' and the Integrated Services Digital Network (I5
DN) The subscriber number N assigned to the subscriber line 32 by 3.

=r0077=06-555-1111J is set as the destination subaddress DSA, and call setting information that does not include the delimiter D (=ffJ) in the destination subaddress DSA is edited and sent to the integrated services digital network (ISDN) 1.

In such a case, the central controller of the private branch exchange system 2 (
CC) 211 in step S13 in FIG.
If it is determined that the delimiter D (-"*") is not included after 0j), the terminal number N
is not included, and the destination subaddress DSA, that is, the central office line originating number N, (=r777-OJ) and subscriber number N.
5 (-r0077-06-555-1111J) from the called number DA to the called number DA, and edit the call setting information without the called subaddress DSA (Step 816), the called number DA (=1 -777-OJ r
0077-06-555-1111") to central office line 31.
Step 515).

As is clear from the above description, according to this embodiment, the central control unit FCC) 211 is connected to the service integrated digital network (FCC) 211.
It analyzes the called subaddress DSA of the call setup information transmitted from the Integrated Services Digital Network (ISD)1.
N) When the central office line originating number NA for 3 is detected, the subscriber number N of the integrated services digital network (ISDN) 3 is determined by identifying the presence or absence of a delimiter after the central office originating number NA of the destination subaddress DSA. This makes it possible to establish a call from the integrated services digital network (musDN) 1 via the private branch exchange system 2 to the integrated services digital network (ISDN) 3.

Note that FIGS. 2 to 4 are merely one embodiment of the present invention, and the configuration of the private branch exchange system 2, for example, is not limited to that shown in the figures, and many other modifications may be considered. However, the effects of the present invention remain the same in either case.

〔Effect of the invention〕

As described above, according to the present invention, in the private branch exchange system, the second service integration is performed from the first service integration digital network via the private branch exchange system without recognizing the numbering plan of the second service integration digital network. It becomes possible to set up a call to the digital network, improving the serviceability of the private branch exchange system.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the principle of the present invention, FIG. 2 is a diagram showing a private branch exchange system according to an embodiment of the present invention, FIG. 3 is a diagram illustrating the route setting process in the private branch exchange 21, and FIG. FIG. 5 is a diagram illustrating a route setting process in the private branch exchange 22; FIG. 5 is a diagram illustrating an example of a conventional private branch exchange system; FIG.
The figure is a diagram showing an example of call setting information, and FIG. 7 is a diagram illustrating the route setting process in FIG. 5.

Claims (1)

[Scope of Claims] In a private branch exchange system (2) accommodated in a first integrated service digital network (1) and a second integrated service digital network (3), the first integrated service digital network ( 1) to the second integrated service digital network (3) via the private branch exchange system (2), the first integrated service digital network (1) When the called subaddress included in the call setup information transmitted to the private branch exchange system (2) is composed of the subscriber number of the second service integrated digital network (3) and the terminal number, the subscriber number and the terminal number are A delimiter is inserted between the called number and the called sub-address included in the call setting information transmitted from the first service integrated digital network (1). Delimiter code identifying means (200) for identifying whether or not a delimiter code is included in a called sub-address after the central office line originating number when it is identified that the central office line originating number is included; and the delimiter code. When the identification means (200) identifies that the called sub-address after the central line calling number includes the delimiter code, the part of the called sub-address before the delimiter code is set as the called party number, and A called number setting method characterized in that a called number setting means (300) is provided for setting the part after the code as a called subaddress and editing call setting information to be sent to the second integrated service digital network (3).