JPH09261337A - Rerouting connection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid poor economy in the short-distance communication of selective combination connection of communication networks between a national or short- distance local communication enterpriser and a newly participated long-distance local communication enterpriser. SOLUTION: The dial signal of an originated call is received (ST1). It is judged whether the originated call is a connected call designating a 2nd communication eterpriser NCCT or not (ST2) and in the case of judgement of NO, the communication is guided (ST3) to ordinary call connecting processing (ST8) for fully opening the communication network of the 1st communication enterpriser. In the case of judgement of YES, call connecting processing due to an address message is performed to the 2nd communication enterpriser designated by the originated call (ST4). It is judged whether a reconnect signal is returned from the communication network of the 2nd communication enterpriser or not (ST5). When absence is judged, call connecting processing to the communication network of the 2nd communication entrepreneur is continued (ST6). When presence is judged, reconnecting processing due to an incoming number parameter is performed by a call originating side subscriber exchange LS (ST7) and ordinary call connecting processing is performed inside the communication network of the 1st communication enterpriser (ST8).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a call connection method in a telecommunications network, and more particularly to a call rerouting connection method when a new entrant long-distance (system) telecommunications carrier is designated. .

[0002]

2. Description of the Related Art In a telecommunications network in Japan, a plurality of companies provide services for long-distance calls between remote places, and they can be selected based on a contract of a subscriber. FIG. 8 is a diagram for explaining a call connection method in such a communication network. In FIG. 8, N carrier (hereinafter referred to as “N company”) is a telecommunications carrier having a nationwide business area, and D carrier (hereinafter referred to as “D company”).
That. ) Is a so-called new entrant long-distance (type) telecommunications carrier (NCCT) that operates between remote areas.

Communication connection under the situation as shown in FIG. 8 will be described. First of all, the subscriber A in the A region (corresponding to a city or prefecture on the administrative division) is in the B region (not adjacent to the A region,
City or prefecture on the administrative division. ) The case of making a call to the subscriber's side will be described. In this case, the D company other than the N company also has a communication line between the A region and the B region, and the subscriber A also has a use contract with the D company.

[Case 1] In case of using only N company The caller A has a called number of the called party "0A to J" (A to J are predetermined digit strings, for example, 0123-45-6789. Here. Dialing (inputting) 0: suburb identification number, 123: suburban area code, 45: local area code, 6789: subscriber number, as is well known via the communication network α of N company. Connect as follows. Caller A → Calling party switchboard (LS1) → Transit switch (TS1) → Transit switch (TS2) → Callee subscriber switch (LS2) → Callee caller In this case, N company's line charges Only minutes.

[Case 2] Case of Using Company D (FIG. 9)
"00Z1Z2", which is the identification number for the calling party A to connect to company D prior to the called number "0A-J" of the called party.
Dialing (00Z1Z2-0A to J), as is well known, the connection is established as follows via the communication networks α and β of N company and D company.

Caller A → Calling party switchboard (LS1) →
Transit switch (TS1) → Gateway switch for originating interconnection (I
GS1)-> Switch (S1)-> Switch (S2)-> Gate switch for destination interconnection (IGS2)-> Interchange switch (TS2)
→ destination subscriber exchange (LS2) → callee 丙 In this case, the communication charges are N company line usage fee, D company line usage fee and interconnection charge (twice for calling side and called side) Is basically the sum of

Next, a case where the subscriber A makes a call to the subscriber B in the same area A will be described. In this case, subscriber A has a contract with Company D. It should be noted that although connection within the same area will be described, connection between adjacent areas is basically the same, and these are generally called short-distance call connection.

[Case 3] In case of using only N company: The caller A has a called number of the called party "0A to J" (A to J are predetermined digit strings, for example, 0987-65-4321. If the calling party A and the called party B have the same area code, you can omit the area code.) And, as is well known, via the N company's communication network α, Connect to. Caller A → Calling party switch (LS1) → Transit switch (TS3) → Calling party switch (LS3) → Callee B In this case, the communication fee is only the line usage fee of N company. .

[Case 4] When the use of company D is designated (see FIG. 10) The calling party "A" identifies the connection number "0A-J" of the called party B to identify the connection to the company "D". If you dial "00Z1 Z2" (00Z1 Z2-0A to J), as is well known,
The connection is made by returning to the communication network β of the company D as follows. Calling party A → Calling party switchboard (LS1) → Transit switch (TS1) → Calling side exchange gateway switch (IGS1) →
Exchange (S1) (return) → Gateway exchange for originating side interconnection (IGS1) → Transit exchange (TS1) → Transit exchange (TS3) → Destination subscriber exchange (LS3) → Callee B , N company's line usage fee, D company's line usage fee, and interconnection fee (twice for calling side and called side).

[0010]

As described above, when the caller party performs so-called short-distance communication in the same city or adjacent areas, the long-distance carrier is designated and the call is made (case 4 above).
Since the connection is made by returning from the communication network β of the designated long-distance carrier, the communication charge is higher than that in the case of the direct connection (corresponding to case 3 above).

In particular, when the caller (caller) subscribes to a service such as a virtual private line (VPN) service provided by a long distance carrier, a virtual private line (VP) is used.
N) When you make a call, the long-distance carrier is automatically specified, so you have to procedurally pass through the gateway switch for interconnection at the originating side over and over again, and a connection fee is charged each time, making it economical. Improvement was desired.

The main objects to be solved by the present invention are as follows. A first object of the present invention is to solve the above conventional problems and to provide a rerouting connection method in which a service desired by a user is provided.

A second object of the present invention is to provide a rerouting connection method for avoiding the uneconomicalness of the selective combination connection of the line networks between the national or short-distance communication carriers and the long-distance communication carriers. is there.

A third object of the present invention is to solve the problem of a relatively high connection charge in short-distance communication of a nationwide or short-distance communication carrier's communication network subscriber and a long-distance carrier's virtual private network contractor. An attempt is made to provide a rerouting connection method that can be resolved.

A fourth object of the present invention is to send the calling subscriber through a gateway exchange for the calling side interconnection and to send back a reconnection (rerouting) signal from a long-distance carrier specified in advance. It is intended to provide a rerouting connection method for reconnecting with an exchange.

Other objects of the present invention include the specification, drawings,
Especially, it will be apparent from the description of each claim.

[0017]

Means for Solving the Problems The above-mentioned problems can be solved by:
The present invention achieves the above object by adopting the novel characteristic construction methods listed below.

A first feature of the present invention is that a part of the communication line section between the caller and the callee is selectably connected by the communication lines of a plurality of communication carriers, From the connection of the communication network that makes the outgoing call through the communication line of the telecommunications carrier specified by
If the destination of the outgoing call can be connected without going through the line of the specified telecommunications carrier, the outgoing call is held through the line of the telecommunications carrier while holding the outgoing call. The rerouting connection method is to reconnect to the called party without any trouble.

The second feature of the present invention is the first feature of the present invention.
In the rerouting connection method, the connection is reestablished based on a reconnection signal returned from the communication carrier after the outgoing call is connected to the communication equipment of the specified communication carrier. It is in.

A third feature of the present invention is that when a caller and a callee connected to the communication network of the first communication carrier are line-connected, a part of the communication line is designated as an outgoing call. When the outgoing call designates the communication network of the second telecommunications carrier when the connection in the communication network is configured to connect via the communication network of the second telecommunications carrier, the second communication is performed. In the rerouting connection method, when the connection can be made without the communication network of the carrier, the outgoing call is reconnected to the called party by the communication network of the first communication carrier.

A fourth feature of the present invention is that when a caller and a callee connected to the communication network of the first communication carrier are line-connected, a part of the communication line is designated as an outgoing call. When the outgoing call specifies the communication network of the second telecommunications carrier upon connection in the communication network configured to connect via the communication network of the second telecommunications carrier, the second communication The communication network of the carrier returns a reconnection signal to the communication network of the first communication carrier when the outgoing call can be connected without going through the communication network of the second communication carrier, The rerouting connection method, wherein the communication network of the first communication carrier reconnects the outgoing call to the called party by the communication network of the first communication carrier when receiving the return of the reconnection signal. It is in.

A fifth feature of the present invention is that when a caller and a callee connected to the communication network of the first communication carrier are connected by a line, an outgoing call is made on a part of the communication line. When connecting in a communication network configured to connect via a communication network of a second communication carrier specified by, the first step of receiving a dial number of an outgoing call from the caller, and then the relevant step A second step of determining whether the outgoing call is a connection call designating the second communication carrier, and if the second step is NO, all the communication networks of the first communication carrier are passed. If the third step leading to the eighth step of the normal call connection processing and the second step are YES, the second telecommunications carrier designated by the dialing of the outgoing call is given the dial number. Call connection processing by address message A fourth step, then, the second
5th step of judging whether there is a return of the reconnection signal returned from the communication network of the second communication carrier, and the communication network of the second communication carrier when it is judged that the fifth step is not present If it is judged that there is a sixth step for continuing the call connection processing to the call and the fifth step, the calling subscriber exchange performs the reconnection processing by the called number parameter, and the seventh step. The rerouting connection method comprises sequentially selecting and performing the eighth step of performing a normal call connection process in the communication network of the first communication carrier.

The sixth feature of the present invention is the fifth feature of the present invention.
The fourth step and the fifth step in the feature of (1) above extract the reconnection parameter from the returned address message in the communication network of the specified carrier or the second carrier intervening in between. 4a step, a 4b step for determining whether or not the extracted reconnection parameter is within a reconnectable range, and a 4b step, if the 4b step is YES, a reconnection signal is transmitted to the originating side. A rerouting connection method in which 4c step of returning to the originating subscriber exchange through the connection gateway exchange and 4d step of normal call connection processing if the 4b step is NO are sequentially selected and routed. It is in.

The seventh feature of the present invention is that an outgoing call is made through the communication line (communication network) of the designated communication carrier in the first, second, third, fourth, fifth or sixth of the present invention. Is a rerouting connection method that is performed through a gateway exchange for originating interconnection.

An eighth feature of the present invention is that the connection side (first feature) of the outgoing call in the first, second or seventh feature of the present invention is the first feature.
There is a rerouting connection method in which the holding in the communication network is carried out by the gateway exchange for the originating interconnection.

The ninth feature of the present invention is that the connection re-establishment in the first, second, third, fourth, seventh or eighth feature of the present invention is performed by the originating local exchange. There is a rerouting connection method.

[0027] A tenth feature of the present invention is that the communication equipment of the designated telecommunications carrier in the second, seventh, eighth or ninth aspect of the present invention is directly connected to the gateway exchange for originating interconnection. It is in the rerouting connection method which is an exchange.

The eleventh feature of the present invention is the reconnection from the designated telecommunications carrier in the second, fourth, fifth, sixth, seventh, eighth, ninth or tenth aspect of the present invention. A rerouting connection method in which a signal is sent back to the equipment of the specified telecommunications carrier by preparing a table in which the called party number parameters of the reconnectable range are recorded, and executing the processing by matching and matching.

A twelfth aspect of the present invention is that the table in the eleventh aspect of the present invention records only the called party number parameter of the reconnectable range in which the communication connection fee by the communication network of the designated communication carrier is high. There is a rerouting connection method.

The thirteenth feature of the present invention is the connection of the first, second, third, fourth, seventh, eighth, ninth, tenth, eleventh or twelfth feature of the present invention. The remedy is a rerouting connection method in which the connection is made only in the calling state of the calling local exchange.

A fourteenth feature of the present invention is the rerouting connection method in which the calling state in the thirteenth feature of the present invention is waiting for an address completion message or a reply message.

The fifteenth feature of the present invention is the second, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth or thirteenth feature of the present invention. The reconnection signal at
A rerouting connection method adopts a signaling method realized by defining a new parameter in a disconnection message without defining a new message.

A sixteenth feature of the present invention is that the new parameter definition in the fifteenth feature of the present invention additionally defines a parameter defined by an address message as a called number parameter indicating a reconnection destination in a disconnection message. There is a rerouting connection method that is executed by executing.

A seventeenth feature of the present invention is a rerouting in which the new parameter in the fifteenth feature of the present invention is newly defined and executed as a service activation parameter indicating that it is a reconnection signal. There is a connection method.

The eighteenth feature of the present invention is the eighth, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth, and thirteenth aspects of the present invention.
When the connection side (first communication carrier) of the outgoing call in the fifteenth, sixteenth, or seventeenth feature receives a reconnection signal at the originating-side interconnection gateway switch and transit switch, normal disconnection is performed. It is a rerouting connection method in which the call is released in the same manner as the message.

The nineteenth feature of the present invention is the ninth, tenth, eleventh, twelfth, thirteenth, fourteenth and first aspects of the present invention.
In the case where the re-connect signal is incorrect due to a parameter invalid or a call that does not allow re-connection, the calling local exchange in the fifth, sixteenth, seventeenth or eighteenth feature sends a busy tone to the caller to make a call. There is a rerouting connection method that is released.

The twentieth feature of the present invention is the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, and eleventh aspects of the present invention. Twelfth, thirteenth, fourteenth, first
In the rerouting connection method, the caller according to the fifth, sixteenth, seventeenth, eighteenth or nineteenth feature is a virtual private network contractor of a specified telecommunications carrier.

The twenty-first feature of the present invention is the ninth feature of the present invention.
The calling-side subscriber exchange according to the tenth, eleventh, twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, eighteenth, nineteenth or twentieth feature is connected between the calling terminal and the reconnection destination terminal. In the rerouting connection method, the dial call charge is charged to the calling terminal and the incomplete call is not charged like the general connection.

The twenty-second feature of the present invention is that the seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, and thirteenth aspects of the present invention. 18, 19th, 2nd
The re-connection network usage fee is re-connected as a consideration for the origination-side interconnection barrier switch in the 0th or 21st feature to occupy the equipment between the originating terminal and the interconnection point from address message transmission to reconnection signal reception. There is a rerouting connection method in which a fixed charge is applied regardless of whether the result is complete or not.

The twenty-third feature of the present invention is the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, and tenth aspects of the present invention. Twelfth, thirteenth, fourteenth, first
5, 16th, 17th, 18th, 19th, 20th, 21st
Alternatively, in the rerouting connection method, the designated telecommunications carrier or the second telecommunications carrier in the twenty-second feature is a long-distance telecommunications carrier.

The twenty-fourth feature of the present invention is the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, and eleventh aspects of the present invention. Twelfth, thirteenth, fourteenth, first
5, 16th, 17th, 18th, 19th, 20th, 2nd
In the rerouting connection method, the connection side of the outgoing call or the first communication carrier in the first, twenty-second or twenty-third feature is a nationwide or short distance area communication carrier.

[0042]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the method of the present invention, the reconnection signal RE
L does not specify a new message, but is a signal realized by specifying a new parameter in the disconnection message which has been used to instruct disconnection of the communication connection of the communication line when the communication is completed or when it is desired to end the communication. The method is adopted, but the address message I
Although the called number parameter indicating the reconnection destination for additionally specifying the parameter specified by AM in the disconnection message will be described in the following example of the present embodiment, the present invention is not limited to this, and the reconnection signal for newly specifying the parameter is provided. It is also free to use a service activation parameter that indicates that Therefore, the action of the disconnect message for releasing the call also functions as an integral part of the reconnection signal REL.

The communication networks α and β used in the method of the present invention may be an analog or digital electric signal network, an optical signal network, a wired or wireless signal network, or any combination thereof. The termination may take any form such as a telephone capable of interactive two-way communication, a telephone with a television, a computer terminal such as a personal computer, a fax machine, an intelligent terminal, and any media terminal.

The execution processing procedure of this embodiment will be described with reference to the drawings. FIG. 1 is an overall execution processing flowchart of this embodiment, FIG. 2 is an execution processing flowchart on the side of a new entrant long-distance carrier (NCCT), FIG. 3 is a table of reconnection parameters on the same side, and FIG. FIG. 5 is a time chart of the continuous connection of the embodiment, FIG. 5 is an explanatory view of the passing state of the gateway exchange for relaying on the originating side and the relay exchange to which the reconnection (rerouting) signal is returned, and FIG. 6 is the reconnection signal. FIG. 7 is an explanatory view of the reconnection processing operation of the originating subscriber exchange, and FIG. 7 is an explanatory drawing of the processing operation of the originating subscriber exchange when the reconnection signal is incorrect. In addition, in the conventional example shown in FIGS. 8 to 10,
The same name is given the same reference numeral to avoid duplication of description.

The execution processing procedure of this embodiment is such that when the caller A and the callee B connected to the communication network α of the first communication carrier N are connected by a line, It is premised that the partial section is connected through the communication network β of the second communication carrier D that specifies the outgoing call.

As shown in FIGS. 1 and 4, first, the originating terminal of the originator A makes an outgoing call to the originating local exchange LS1 to confirm the return dial tone DT, and then the outgoing dial signal is subscribed to the originating side. The first step (ST1) received by the local exchange LS1 and then whether the originating call is a connection call designating the second communication carrier D or not.
When the second step (ST2) determined by S1 and the second step (ST2) are determined to be NO, a later-described normal call connection process for passing all through the communication network α of the first carrier N will be described later. 8th step (ST8) 3rd step (ST
3) and if the second step (ST2) is YES, the originating local exchange LS1 sends the address signal IA.
M is sent to the originating interconnection gateway exchange IGS1 and the originating interconnection gateway exchange IGS1 uses the address message IAM to the second telecommunications carrier D designated by the dialing of the outgoing call. (ST4) is sequentially and selectively stepped to be executed in the first communication carrier N side A intra-regional communication network α.

The dial number in the first step (ST1) is "00Z1Z2-0A ~ J" or "0A ~
J ”. The caller is the subscriber of the virtual private network VPN of the second communication carrier D, and the reconnection destination is the same as the calling terminal Z.
A (Zone center Area: almost the same as the prefecture), and in FIG. It is not performed in the communication network α, and the calling subscriber exchange LS1 determines whether the connection destination is in the same area ZA.

As shown in FIG. 2, the exchange S1 of the second communication carrier D, which has connected and received the address message IAM from the gateway exchange IGS1 for originating interconnection, receives the reconnection parameter relating to the called number from the address message IAM. 4a step (ST4a) for extracting the reconnection parameters and whether the extracted reconnection parameters match with the reconnection parameters in the table T shown in FIG. 3 in which only those reconnectable to the exchange S1 are registered in advance. 4b step (ST4b) for determining the result of the check, and if YES, the fourth step (ST4c) for sending the reconnection signal REL to the gateway exchange for originating side interconnection IGS1 and the result of the mismatch determination are NO.
In the case of, the 4d step (ST4d) for performing the ordinary long-distance call connection processing that passes through the communication network β of the second communication carrier D
And are sequentially selectively processed to be executed in the communication network β on the second communication carrier D side.

The called numbers in the step 4a (ST4a) are "0A to J". However, J is the case of the maximum number of digits. Now, set the called number parameter to "0ABC-DE-FGH.
I (for example, 0987-65-4321) ", 0: long-distance identification number ABC: long-distance area code (987 in the above example) DE: local area code (65 in the above example) FGHI: subscriber number ( In the above example, it becomes 4321). Set the reconnection parameter from the called number parameter. For example, "area code (ABC or 987 in the above example)" is used as the reconnection parameter.

As shown in FIGS. 1 and 5, the reconnection signal RE returned from the exchange S1 of the second communication carrier D is returned.
Check whether there is a reply from L
If the GS1 determines that the reconnection signal REL is not returned, the sixth step (ST6) of continuing the call connection processing to the communication network β of the second communication carrier D and the originating-side interconnection gateway exchange IGS1 When the reconnection signal REL is received, the call is released and the reconnection signal R is released.
The originating subscriber exchange LS1, which is returned after passing through the transit exchange TS which has also released the EL path, does not release the call as shown in FIG. 6, and the connection destination indicated by the called number parameter (0A to J). To the communication network α within the area A of the first communication carrier N by the seventh step (ST7) of sending the address message IAM to the re-connection process and the re-connection process of the originating subscriber exchange LS1. Eighth step (ST8) of performing normal call connection processing (connection by A to J) via
And are sequentially executed by the communication network α in the area A on the side of the first communication carrier N.

As shown in FIG. 4, the eighth step (ST
As the normal general call connection processing of 8), an address message IAM is sent to the destination subscriber exchange LS3 via the transit exchange TS on the way, and the destination subscriber exchange LS3 makes a call to the called party B of the reconnection destination. Together with the originating local exchange L
The address completion ACM signal is sent to S1, and at the same time, the ring back tone RBT is continuously emitted to the caller A through the originating subscriber exchange LS1.

After that, when the called party B picks up the called terminal, a response (OFFHOOK) signal is transmitted to the called side subscriber exchange LS3, and from the called side subscriber exchange LS3 through the transit exchange TS to the calling side subscriber exchange LS1. Response ANM signal, and then a communication line such as a call is connected from the originating side subscriber exchange LS1 to the caller A of the calling terminal, and the caller A and the callee B are brought into a state of interactive communication, and the reconnection is completed.

In the reconnection process of the seventh step (ST7), the originating local exchange LS1 sends the address message AC.
It is intended for the in-call state such as waiting for M or waiting for a response message ANM. When the reconnection signal REL is incorrect such as a parameter error or a call that does not allow reconnection, the originating local exchange LS1 sends a busy tone BT or a missing number to the destination terminal of the originator A as shown in FIG. Send the talkie and release the call.

In a series of these reconnection execution processes,
Dialing call charge (K) between the source terminal and the destination terminal (reconnection destination)
Communication charges such as (charging) are charged to the calling terminal at the calling subscriber's exchange LS1, and uncompleted calls are not charged like the general connection. Further, the first communication carrier N equipment between the calling terminal and the interconnection point POI (see FIG. 8) is sent from the address message IAM signal to the reconnection signal REL.
As a consideration for occupying until reception, the reconnection communication network α usage fee shall be charged at the originating interconnection gateway exchange IGS1, the reconnection communication network α usage fee shall be fixed, and the result of reconnection will be incomplete. Calls that become lost will also be charged.

[0055]

As described above, according to the present invention, in the virtual private network service provided by the long-distance carrier, the short-distance call is expensive, so that the user uses the extension number call in the short-distance call for the reason of the charge. Eliminate the possibility that it will be difficult to do, and reduce the undercarriage charges from nationwide or short-distance area telecommunications carriers even in short-distance communication.

Further, the reconnection process and the charging process can be automatically processed by the cooperation between the long-distance communication carrier and the national or short-distance region communication carrier, and the smooth communication between the communication networks of different management companies can be performed. It has excellent effects such as enabling connection and expanding the range of choices of subscribers.

[Simple explanation of the drawings]

FIG. 1 is an overall execution process flowchart showing an embodiment of the present invention.

FIG. 2 is an execution process flowchart on the side of a new entrant long distance communication carrier.

FIG. 3 is a table of reconnection parameters of the above.

FIG. 4 is a time chart of serial connection showing an embodiment example of the present invention.

FIG. 5 is an explanatory diagram showing a passing state of a gateway exchange for origination side interconnection and a relay exchange to which a reconnection signal is returned.

FIG. 6 is an explanatory diagram of a reconnection processing operation of the calling side local exchange that has received a reconnection signal.

FIG. 7 is an explanatory diagram of a calling side subscriber exchange processing operation when a reconnection signal is incorrect.

FIG. 8 is an explanatory diagram of a connection state of a communication network between a new entry long-distance communication carrier and a nationwide communication carrier.

FIG. 9 is a time chart of continuous connection in which a newly entered long-distance communication carrier connects through a communication network in the middle of a long-distance call in the above.

FIG. 10 is a time chart of a conventional example of continuous connection in which a short-distance call is made on the way and a new entry long-distance communication carrier connects through a communication network.

[Explanation of symbols]

N ... First telecommunications carrier D, NCCT ... Second telecommunications carrier (designated telecommunications carrier) Party ... Caller (calling party) B, Hei ... Recipient (callee) LS1 ... Calling party Subscriber exchanges TS, TS1, TS2, TS3 ... Relay exchanges IGS1 ... Originating side interconnection gateway exchanges S1, S2 ... Exchanger IGS2 ... Destination interconnection interconnection gateway exchanges LS2, LS3 ... Destination side subscriber exchange α ... First Communication carrier communication network β ... Second communication carrier communication network 00Z1 Z2 ... Second communication carrier identification number 0A to J ... Called number DT ... Dial tone IAM ... Address signal (address message) ALT ... Calling signal RBT ... Ring back tone ANM ... Response signal T ... Reconnection parameter table REL ... Reconnection signal (rerouting) ACM ... Address completion signal BT ... Busy tone VPN ... Virtual private network

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Keiichi Yanagihara 3-19-2 Nishishinjuku, Shinjuku-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Takashi Anzai 3-19-3 Nishishinjuku, Shinjuku-ku, Tokyo No. within Nippon Telegraph and Telephone Corporation

Claims (24)

[Claims] 1. A part of a communication line section between a caller and a callee is selectably connected by communication lines of a plurality of communication carriers, and a communication for which an outgoing call is designated is made from the plurality of communication carriers. In the case of connecting a communication network in which the outgoing call is connected via the communication line of the carrier, the destination of the outgoing call can be connected without going through the line of the specified carrier. In the rerouting connection method, the outgoing call is retained on the side of the communication network and reconnected to the called party without going through a line of a specified communication carrier. 2. The reconnection is performed based on a reconnection signal returned from the telecommunications carrier after the outgoing call is connected to the communication equipment of the designated telecommunications carrier. The rerouting connection method according to claim 1, wherein the rerouting connection method is used. 3. A second telecommunications carrier who, when connecting a caller and a called party connected to a communication network of the first telecommunications carrier, specifies a part of the communication line for an outgoing call. When the outgoing call specifies the communication network of the second telecommunications carrier when connecting in the communication network that is configured to be connected via the second telecommunications network of the second telecommunications carrier, the communication network of the second telecommunications carrier is used. A rerouting connection method, characterized in that when the connection is possible without any interruption, the outgoing call is reconnected to the called party through the communication network of the first communication carrier. 4. A second telecommunications carrier who, when connecting a caller and a called party connected to a communication network of the first telecommunications carrier, specifies a part of the communication line for an outgoing call. When the outgoing call specifies the communication network of the second telecommunications carrier, the communication network of the second telecommunications carrier: When the outgoing call can be connected without going through the communication network of the second telecommunications carrier, a reconnection signal is returned to the communication network of the first telecommunications carrier, The rerouting connection method, wherein the communication network reconnects the outgoing call to the called party through the communication network of the first communication carrier when receiving the return of the reconnection signal. 5. A second communication in which when a caller and a callee connected to a communication network of a first communication carrier are connected by a line, a part of the communication line is designated as an outgoing call. When connecting in a communication network that is configured to be connected through a communication network of a business operator, first, a first step of receiving a dial number of an outgoing call from the caller, and then, the outgoing call is the second call The second step of determining whether or not the connection call specifies a telecommunications carrier, and when the second step is determined to be NO, a normal call connection process for the entire communication network of the first telecommunications carrier is performed. 8th
A third step leading to a step, and if YES in the second step, call connection processing is performed by the address message of the dial number to the second telecommunications carrier designated by the dial of the outgoing call. Then, a fifth step of determining whether or not there is a return of the reconnection signal returned from the communication network of the second communication carrier, and the fifth step if the fifth step is determined to be absent. If the sixth step of continuing the call connection processing to the communication network of the second communication carrier and the fifth step are present, the calling local exchange performs the reconnection processing by the called number parameter.
A rerouting connection method comprising: sequentially selecting and passing a step, and an eighth step of performing a normal call connection process in the communication network of the first communication carrier after the seventh step. 6. The fourth step and the fifth step extract the reconnection parameter from the returned address message in the communication network of the specified carrier or the second carrier intervening between them. 4a step for determining whether the extracted reconnection parameter is within a reconnectable range, and if the 4b step is YES, a reconnection signal is issued. The step 4c of returning to the originating subscriber exchange through the gateway exchange for side interconnection, and the step 4b of NO when the step 4b is NO, the step 4d of performing ordinary call connection is sequentially selected and routed. The rerouting connection method according to claim 5, wherein 7. A communication line (communication network) of a specified telecommunications carrier
The rerouting connection method according to claim 1, 2, 3, 4, 5 or 6, wherein the outgoing call is connected through the gateway switch for interconnection of the originating side. 8. The method according to claim 1, 2 or 7, characterized in that the outgoing call is held in the connection side (first communication carrier) communication network by a gateway exchange for originating side interconnection. Rerouting connection method. 9. The rerouting connection method according to claim 1, wherein the reconnection is performed by the originating side subscriber exchange. 10. The rerouting connection according to claim 2, 7, 8 or 9, wherein the communication equipment of the specified telecommunications carrier is an exchange that is directly connected to the gateway exchange for originating side interconnection. Method. 11. The return of the reconnection signal from the specified telecommunications carrier is performed by collating and matching by preparing a table in which the called party number parameters of the reconnectable range are recorded in the equipment of the specified telecommunications carrier. It processes, The rerouting connection method of Claim 2, 4, 5, 6, 7, 8, 9 or 10. 12. The rerouting connection method according to claim 11, wherein the table records only called party number parameters in a reconnectable range in which a communication connection fee by a communication network of a specified communication carrier is relatively high. . 13. The connection is re-established only when the calling subscriber's exchange is in a ringing state.
13. The rerouting connection method according to 10, 11, or 12. 14. The rerouting connection method according to claim 13, wherein the calling state is waiting for an address completion message or waiting for a response message. 15. The reconnection signal adopts a signaling method realized by defining a new parameter in a disconnection message without defining a new message. 7, 8, 9,
14. The rerouting connection method according to 10, 11, 12 or 13. 16. The rerouting according to claim 15, wherein the definition of the new parameter is executed by additionally defining a parameter defined by an address message as a called number parameter indicating a reconnection destination in a disconnection message. How to connect. 17. The rerouting connection method according to claim 15, wherein the definition of the new parameter is executed by newly defining the parameter as a service activation parameter indicating a reconnection signal. 18. The connection side (first communication carrier) communication network of the outgoing call, when the re-connection signal is received at the originating-side interconnection gateway exchange and transit exchange, the call is transmitted in the same manner as a normal disconnection message. Releasing. 8. The method according to claim 8, 9, 10, 11, 12, 1
The rerouting connection method according to 3, 14, 15, 16 or 17. 19. The calling local exchange is characterized by transmitting a busy tone to the caller and releasing the call when the reconnection signal is invalid due to a parameter invalid or a call that does not allow reconnection. Claims 9, 10, 11, 12, 13,
The rerouting connection method according to 14, 15, 16, 17 or 18. 20. The caller is a virtual private network contractor of a specified telecommunications carrier, wherein the caller is 1, 2, 3, 4, 5, 6, 7,
8, 9, 10, 11, 12, 13, 14, 15, 16,
The rerouting connection method according to 17, 18 or 19. 21. The calling subscriber exchange charges the calling terminal for a dial call charge from the calling terminal to the reconnection destination terminal, and charges the incomplete call as in the general connection. 9. The method according to claim 9, 10, 11, 12, 13,
The rerouting connection method according to 14, 15, 16, 17, 18, 19 or 20. 22. As a result of the reconnection of the reconnection network usage fee, the origination interconnection gateway exchange occupies the equipment between the originating terminal and the interconnection point from address message transmission to reception of the reconnection signal. A fixed fee is charged regardless of whether the process is completed or not completed.
2, 13, 14, 15, 16, 17, 18, 19, 20
Alternatively, the rerouting connection method described in 21. 23. The specified telecommunications carrier or the second telecommunications carrier is a long distance telecommunications carrier, wherein the telecommunications carrier or the second telecommunications carrier is a long distance telecommunications carrier.
8, 9, 10, 11, 12, 13, 14, 15, 16,
The rerouting connection method according to 17, 18, 19, 20, 21 or 22. 24. The connection side of the outgoing call or the first telecommunications carrier is a nationwide or short-distance area telecommunications carrier. ,
8, 9, 10, 11, 12, 13, 14, 15, 16,
The rerouting connection method according to 17, 18, 19, 20, 21, 22, or 23.