JP3722499B2 - Call identification information management system - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a call identification information management system in an exchange system that performs call processing using a call identification number managed independently between a plurality of exchanges.
[0002]
In order to perform the exchange process efficiently, an exchange number for assigning an identification number for identifying a call in each exchange performing communication and performing a call connection process is also performed. On the other hand, with the diversification of exchange services in recent years, exchange processing that does not correspond to the physical line between the originating exchange and the terminating exchange has also been performed, and it does not correspond to such a physical line. It is required to associate a call identification number that facilitates exchange of call information between exchanges.
[0003]
[Prior art]
FIG. 23 is a block diagram illustrating a conventional example. In the figure, 11 to 13 are exchanges, and 1-1 to 1-3 and 2-1 to 2-3 are lines. Here, the line connecting the exchange 11 and the exchange 12 is 1-i, and the line connecting the exchange 11 and the exchange 13 is 2-j. i and j are line numbers between the respective exchanges.
[0004]
In the conventional example, the number assigned to the line in this way is shared between the two exchanges corresponding to each other, thereby associating the physical line number with the call identification number and performing the call Identification is performed.
[0005]
In the above-described conventional example, the lines 11-i and 2-j between the exchange 11 to the exchange 12 and the exchange 11 to the exchange 13 of the exchange network composed of the three exchanges 11 to 13 have been described. Calls can be similarly identified even if a line is provided between them.
[0006]
In addition, the number of exchanges is not limited to three, and even if the number is arbitrary, it is possible to identify a call by associating a physical line number with a call identification number. .
[0007]
[Problems to be solved by the invention]
In the conventional example of FIG. 23 described above, it is impossible to perform association when there is no physical line between corresponding exchanges or when call information is exchanged without using a physical line.
[0008]
The present invention does not depend on a physical line when performing call processing between a plurality of exchanges, and also facilitates call association between unspecified exchanges that have not been set in advance. An attempt is made to realize a call identification information management system that can be performed at the same time.
[0009]
[Means for Solving the Problems]
FIG. 1 is a block diagram illustrating the first principle of the present invention. FIG. 10 shows a call identification information management system for executing call processing by assigning an identification number to a call in each exchange when performing call exchange processing between a plurality of exchanges. and when the other party call arrives, a call identification number management section for imparting an identification number of the call of the own station (hereinafter referred to as the self-call ID number), the call mapping function 200 is sent from the signal line partner The call association state control unit 210 that determines and manages the call state of the call from the station and the call of the own station, and call information sent from the signal line, is referred to as the identification number of the other party call (hereinafter called the other party call identification number). ) For extracting the other party call identification number correspondence unit 220, and management of the data area 300 for writing the correspondence between the other party call identification number of the call from the partner station extracted by the other party call identification number correspondence unit 220 and the own call identification number Data area management Ru equipped with a 230.
When generating a call signal reception from the other station receives the other station code and the partner call identification number captures own call identification number in the call identification number management section 100, it intends rows correspondence. When a call is generated by signal transmission from the own station, the call identification number management unit 100 captures the own station call identification number, transmits the own station call identification number to the partner station, and the partner station sends the own station call identification number. The partner station identification number is captured from the station call identification number and returned to the own station to establish association.
FIG. 7 is a block diagram for explaining the embodiment (1) of the present invention. In addition to FIG. 1 for call release processing, the consistency of call processing data is checked at a predetermined cycle, the state of the other party call identification number is confirmed in units of stations, and the release processing is performed when all are idle. Arbitrary time to perform a release process when there is no response even if signal transmission is performed with the periodic release processing unit 241 and the state of the other party call identification number for each station is confirmed when a call release request is generated A release processing unit 242 is provided. The data table 300A has the same function as the data area 300 in FIG.
[0010]
FIG. 2 is a block diagram illustrating the second principle of the present invention . The first principle of the call association state function section 210 in FIG. 1, the other party call identification number corresponding unit 220, a call correlation function unit 200 includes a data area management unit 230, and, a data area 300, respectively, FIG. 2 The link-specific call association state control unit 211, the link-specific partner call identification number function unit 221, the link-specific call association function unit 201 including the link-specific data area management unit 231, and the link-specific data area 301. Yes, call association is established for each link.
[0011]
1, 2 , and 7, reference numeral 400 denotes a service processing unit corresponding to a call identification number, which performs a connection process between calls designated by the call identification number. FIG. 13 is a block diagram for explaining an embodiment (2) of the present invention. The link-specific data area management unit 231 starts the timer when a signal is transmitted by the management of the link-specific data area for writing the correspondence between the partner call identification number and the call identification number of the own station, and the timer 251, When the time has elapsed, the call identification number for each link is released.
[0012]
[Action]
FIG. 3 shows an operation (1) for generating a call by receiving a signal from another station, and FIG. 4 shows an operation (1) for generating a call by transmitting a signal from the own station. The operation of the first principle of the present invention will be described with reference to FIGS.
[0013]
In FIG. 3, the call identification number management unit 100 captures the own call identification number by receiving the partner station code and the partner call identification number. The self-call identification number, the partner station code sent from the partner station, and the partner call identification number are associated with each other and written in the data area 300 under the control of the data area management unit 230. Then, the higher level control device, for example, the call processor is notified that the association has been performed, and the call association state control unit 210 sets a flag indicating that the association is being established. The other party call identification number, the own station code, and the own identification number are transmitted.
[0014]
FIG. 4 shows a case where a signal is transmitted from the own station. First, when a call is generated, the call identification number management unit 100 captures the own call identification number, adds the own station code thereto, and sends it to the other station. Send to. Then, the call state control unit 210 sets a flag indicating that it is waiting for association establishment.
[0015]
Further, the partner station that has received this signal performs association by the operation shown in FIG. 3, and transmits the result. By receiving this partner station code and partner call identification number, the data table management unit 230 associates the own call identification number, partner station code, and partner call identification number, and writes them in the data area 300. Then, the call association state control unit 210 sets a flag indicating that association is being established.
[0016]
In this way, the other party call identification number and the own call identification number are associated with each other and written in the data area 300. When the association is no longer necessary, the data area 300 is released, Perform dynamic area management.
[0017]
FIG. 5 shows an operation (2) for generating a call by receiving a signal from another station, and FIG. 6 shows an operation (2) for generating a call by transmitting a signal from the own station. FIGS. 5 and 6 show that in a switching system in which load distribution is achieved by using a plurality of signal links, the data amount is reduced by having a link-specific data table in the link-specific data area 301 corresponding to the signal link. It is comprised as follows. The operation of the second principle of the present invention will be described with reference to FIGS.
[0018]
In FIG. 5, the other party code and the other party call identification number are received for each signal link, and the call identification number management unit 100 captures the own call identification number. At this time, it is determined whether or not the partner call identification number is being reset. If the flag indicating reset is set, the data is discarded. If the flag indicating reset is not set, the process proceeds, the self-call identification number, the signal link, the partner station code, and the partner call identification number are associated with each other, and the link-specific data area management unit 231 performs link-specific data. Write to area 301 data table. Then, the higher level control device is notified that the association has been performed, and the link-by-link call association state control unit 211 sets a flag indicating that the association is being established, and to the other station through a predetermined signal link The other station code, the other party call identification number, the own station code, and the own identification number are transmitted.
[0019]
FIG. 6 shows a case where a signal is transmitted from the own station through a predetermined signal link. The processing of FIG. 4 is performed through the predetermined signal link, and the own call identification number and the other party call identification number are performed for each signal link.
[0020]
In this way, even with a signal from an exchange not set in advance, the own call identification number can be set from the other party call identification number, and the exchange signal can be efficiently performed.
[0021]
【Example】
FIG. 7 is a block diagram for explaining the embodiment (1) of the present invention. FIG. 7 shows an embodiment of the process for acquiring and releasing the call identification number between the plurality of exchanges described in FIG. A unit 241 and an arbitrary time release processing unit 242 are provided.
[0022]
FIG. 8 shows a call identification number association process according to the embodiment (1) of the present invention, and the operation at the time of acquisition will be described according to the numbers attached to the figure.
(1) Receiving the partner station code and the partner call identification number, entering the association process, and checking the state of the station code in the data table 300A in order to capture the data table 300A.
[0023]
{Circle around (2)} It is determined whether or not there is a data table 300A for the station.
(3) If there is no data table 300A for the station in (2), the data table 300A is captured and initialization for registering the data for the station is performed.
[0024]
(4) Next, it is determined whether or not the state of the other party call identification number in the data table 300A of the station is empty.
(5) In the idle state, the own call identification number is set for the other party code and the other party call identification number, and the state number that has been available until then is displayed as being established.
[0025]
(6) If it is not empty, it is determined as abnormal, and the association processing is reset for both the own station and the partner station.
In this way, the data table 300A is set by the processing shown in FIG. 8, but in order to effectively use the data area, the data table 300A that is no longer necessary is released, and is dynamically captured and released. The release process will be described below with reference to FIGS.
[0026]
FIG. 9 shows data table release processing (1) according to the embodiment (1) of the present invention. When the capacity of the data area 300 is sufficient for the assumed call identification number, the data table 300A does not need to be released, and even when the other party code and the other party call identification number are input and there is a release request. The other party call identification number status number is simply changed from being established to empty.
[0027]
FIG. 10 shows the data table release process (2) of the embodiment (1) of the present invention. In FIG. 9, the data table 300A is not released as described above. In FIG. 10, the same processing as in FIG. Then, the predetermined period release processing unit 241 performs a check, for example, in a periodic process once a day, checks the state of all the other party call identification numbers corresponding to the same station code, and when all are idle, the data table 300A To release.
[0028]
(1) (2) This is a process for advancing the station code by “1” when the following processes are completed.
(2) It is determined whether there is a data table 300A corresponding to the station code.
[0029]
(3) If there is a data table 300A in (2), the state corresponding to the other party call identification number is checked.
(4) It is determined whether or not it is empty.
[0030]
(5) If (4) is empty, it is determined whether all the other party call identification numbers have been completed.
If it is not finished in (6) and (5), proceed to (9).
(7) In the case of (5), the data table 300A corresponding to the station code is released.
[0031]
{Circle around (8)} It is determined whether or not all station codes have been checked. If not, the process returns to {circle over (1)} to continue the process, and if finished, the release process by the check process is terminated.
FIG. 11 shows the data table release process (3) of the embodiment of the present invention. Here, when a release request is generated by the arbitrary time release processing unit 242, the status is set to empty, and the status of all the other party call identification numbers of the station code is checked. The data table A is released.
[0032]
(1) The partner station code and partner station identification number are specified and a release request is generated. A status number corresponding to the partner station code and the partner station identification number is set to be empty after being established.
(2) to (7) Same as (3) to (7) and (9) in FIG. 10, and release processing of the data table 300A is performed when all are empty.
[0033]
According to the capacity of the data area 300 and the predicted capacity of the call identification number, the data area is efficiently captured and released by performing the release processing of FIGS.
FIG. 12 shows a data table of the embodiment (1) of the present invention.
[0034]
(A) shows a diagram in which the data table “n” is indexed from the station code, and whether or not there is a data table is displayed in the status area.
(B) shows a diagram in which the own call identification number is indexed from the other party call identification number in the data table “n”, the status area indicates that it is empty or being established, and the own call identification number is in the established state. Valid data.
[0035]
Next, FIG. 13 shows a block diagram for explaining an embodiment (2) of the present invention. FIG. 13 shows an embodiment in which a call identification number between exchanges is captured and released corresponding to the signal link described in FIG. 2, and a timer 251 is provided that makes the link-specific data table 301A valid for a fixed time. It is.
[0036]
If a fixed data area is prepared corresponding to the call identification number, if the capacity of the call identification number is, for example, 4 octets (32 bits), it is necessary to prepare a large data area. Thus, there is a problem in the device configuration. Therefore, in the embodiment (2), the management of the call identification number is made compatible with the signal link, and the data amount is reduced by clearing the data after a predetermined time.
[0037]
FIG. 14 shows a call identification number association process according to the embodiment (2) of the present invention, and the operation at the time of acquisition will be described in accordance with the numbers attached to the figure.
(1) The signal link, the partner station code and the partner call identification number are received and the association process is started. At this time, a timer, for example, 20 to 30 Sec is set.
[0038]
(2) The own call identification number is set for the other party code and the other party call identification number, and the state number that has been vacant until then is displayed as being established.
As described above, the link-specific data table 301A is captured by the processing shown in FIG. 14. However, in order to effectively use the data area, the link-specific data table 301A that is no longer necessary is released and captured dynamically. It is necessary to perform the release, and the release process will be described below with reference to FIG.
[0039]
FIG. 15 shows a call identification number association release process of the embodiment (2) of the present invention. As shown in FIG. 14, the counterpart station code, counterpart call identification number, and own call identification number are associated with each other in correspondence with the signal link, and a timer is set. When this timer times out, a release instruction is sent out, and the status number is made empty from being established. Alternatively, if the link-specific data table 301A has a data structure for instructing linkage with each other, that is, a chain structure, the designated partner call identification number is removed from the idle chain.
[0040]
FIG. 16 shows the abnormality handling process (1) of the embodiment (2) of the present invention. When a signal abnormality occurs between exchanges, an abnormality handling process is executed.
(1) The other party code and the other party call identification number are input, and the reset process is started. The state of the designated station code is checked.
[0041]
(2) It is determined whether there is a link-specific data table 301A corresponding to the station code.
(3) If there is no link-specific data table 301A in (2), the link-specific data table 301A is captured and initialized.
[0042]
(4) The status number is set from “0” to “1” corresponding to the other party call identification number, and the fact that the reset is being performed is displayed.
FIG. 17 shows the abnormality handling process (2) of the embodiment (2) of the present invention. When a signal abnormality occurs between the exchanges, a status number “1” indicating that the reset is being performed is set to the corresponding call identification number.
[0043]
(A) shows a process of changing the status of the other party call identification number from “1” to “0” after the reset is confirmed.
(B) shows, for example, a process of performing a check process once / day and releasing the data table.
[0044]
(1) Determine the reset status of your station.
If {2} {1} indicates that the reset is being performed, the link-specific data table 301A is left as it is and the processing ends.
[0045]
(3) If no reset is in progress in (2), the station code is updated.
(4) It is determined whether or not there is a data table 301A for each link.
(5) If there is the link-specific data table 301A in (4), the link-specific data table 301A is released.
[0046]
{Circle around (6)} It is determined whether or not all stations have been completed. If not, the process returns to step {circle around (3)} and the processing of the next station code is continued.
FIG. 18 shows the data table (1) of the embodiment (2) of the present invention.
[0047]
(A) shows the figure which indexes data table "n" from a signal link number.
(B) shows a diagram in which the own call identification number is indexed from the other party code + the other party call identification number in the data table “n”. The “call identification number” and the own call identification number become valid data in the established state.
[0048]
(C) shows a timed timer table, and either “1” indicating the act state or “0” indicating the non-act state of the timer 251 is written in correspondence with “partner station code + partner call identification number”.
[0049]
FIG. 19 shows the data table (2) of the embodiment (2) of the present invention. The figure shows the configuration of the reset wait state determination table.
(A) shows a diagram in which the data table “n” is indexed from the station code, and whether or not there is a data table is displayed in the status area. If there is, the table is captured.
[0050]
In (B), in the data table “n”, either “1” indicating that the reset state is the act state or “0” indicating the non-act state is written in correspondence with the other party call identification number. FIG. 20 shows the data table (3) of the embodiment (2) of the present invention. The figure shows an example in which the table is configured as a chain table.
[0051]
(A) shows the head table of the chain table, in which the forward linkage number and the final reverse linkage number are written.
.. (B1), (B2)... Are tables following the head table, in which “the other party code + the other party call identification number”, the own call identification number, the forward linkage and the reverse linkage address are written and written.
[0052]
(C) is a timed timer table, and whether each timer 251 is in an act state or a non-act state is written corresponding to each table.
By using the tables described with reference to FIGS. 18 to 20, the link-specific data table 301A is dynamically captured and released, and call identification numbers can be associated in a small data area.
[0053]
FIG. 21 shows a sequence (1) of abnormality processing according to the embodiment of the present invention.
(1) indicates normal processing. When the call identification number X of the A station (shown as call ID in the figure) X is transmitted from the A station by IAM, the B station captures the B station call identification number Y. Then, the B station notifies the call identification number X that Y has been captured by the IAM-ACK signal and notifies that the reception of the address signal has been completed.
[0054]
{Circle over (2)} is an example of abnormal processing, in which the IAM-ACK signal notifying that Y has been captured for the call identification number X has been lost. RESET (X,) for resetting the call with the identification number X is transmitted to the B station.
[0055]
In the processing 1 of FIG. 21 of the above-described abnormal processing, in the processing of the embodiment (1), the B station identifies the call identification of the B station from the associated data table 300 based on the call identification number X of the A station. The number Y is determined and reset processing is performed. Further, in the processing of the embodiment (2), an association table that is valid only while the timed timer is operating, for example, an idle chain (shown in FIG. 20) for issuing the call identification number Y from the call identification number X. By performing a key search, the call identification number Y of station B is determined, and reset processing is performed.
[0056]
FIG. 22 shows a sequence (2) of the abnormality process according to the embodiment of the present invention.
The figure shows an example in which the release instruction of the call identification number X of the A station is transmitted from the B station, and the corresponding RLC (Y,) from the A station to the B station is lost. Since RLC (Y,) has been lost, a timeout is detected at station B, a RESET signal is sent to station A, and the call identification number X of station A is reset. Before the reset process, if the next call signal IAM is sent from the A station, the B station refers to the state of the call identification number X, and if the reset is in progress, the call signal IAM is discarded.
[0057]
In the A station, a reset process is performed according to the RESET signal received earlier, and a RESET-ACK signal is sent to the B station.
In the process 3 of FIG. 22 of the above abnormal process, in the embodiment (1), the active state (reset is in progress) of the call identification number X is determined from the associated data table 300. The active state is determined with reference to the table (shown in FIG. 19).
[0058]
【The invention's effect】
According to the present invention, a call from an unspecified exchange that has not been scheduled in advance can be easily assigned with its own call identification number corresponding to the other party call identification number. By dynamically performing the release, a small data area can be used effectively.
[0059]
Further, even when an abnormality occurs, it is possible to reliably derive the call identification number and reliably perform the abnormality process.
[Brief description of the drawings]
FIG. 1 is a block diagram for explaining a first principle of the present invention. FIG. 2 is a block diagram for explaining a second principle of the present invention. FIG. 3 is an operation for generating a call by receiving a signal from another station (1). )
[Fig. 4] Operation for generating a call by signal transmission from own station (1)
FIG. 5 shows an operation for generating a call by receiving a signal from another station (2).
[Fig. 6] Operation to generate a call by signal transmission from own station (2)
FIG. 7 is a block diagram for explaining an embodiment (1) of the present invention. FIG. 8 is a call identification number association process of the embodiment (1) of the present invention. Table release processing (1)
FIG. 10 shows a data table release process (2) according to the embodiment (1) of the present invention.
FIG. 11 illustrates a data table release process (3) according to the embodiment (1) of the present invention.
12 is a data table of the embodiment (1) of the present invention. FIG. 13 is a block diagram illustrating the embodiment (2) of the present invention. FIG. 14 is a call identification number association of the embodiment (2) of the present invention. Processing [FIG. 15] Call identification number association release processing of the embodiment (2) of the present invention [FIG. 16] Anomaly handling processing (1) of the embodiment (2) of the present invention
FIG. 17 shows an abnormality handling process (2) according to the embodiment (2) of the present invention.
FIG. 18 is a data table (1) according to an embodiment (2) of the present invention.
FIG. 19 is a data table (2) according to an embodiment (2) of the present invention;
FIG. 20 is a data table (3) according to an embodiment (2) of the present invention.
FIG. 21 is a diagram illustrating an abnormality processing sequence according to the embodiment of this invention (1).
FIG. 22 is a sequence of abnormal processing according to the embodiment of the present invention (2).
FIG. 23 is a block diagram for explaining a conventional example.
DESCRIPTION OF SYMBOLS 10 Call identification information management system 11-13 Switch 100 Call identification number management part 200 Call matching function part 201 Link-specific call correlation function part 210 Call correlation state control part 211 Link-specific call correlation state control part 220 Counterpart call identification Number correspondence unit 221 Link-specific partner call identification number function unit 230 Data area management unit 231 Link-specific data area management unit 241 Predetermined period release processing unit 242 Arbitrary time release processing unit 251 Timer 300 Data area 300A Data table 301 Link-specific data area 301A Data table by link 400 Service processing unit 1-1 to 1-3, 2-1 to 2-3 line

Claims (2)

A call identification information management system for performing call processing by assigning an identification number to a call in each exchange when performing call exchange processing between a plurality of exchanges,
A call identification number management unit for assigning an identification number of a call of the local station when a call is generated and when a partner call is received;
A call state from the other station sent from the signal line, a call state control unit for determining and managing the call state of the call of the own station, and
From the call information sent from the signal line, the counterpart call identification number corresponding unit for extracting the identification number of the counterpart call ,
A data area management unit for managing a data area for writing a correspondence with the call identification number of the caller's own call identification number and the caller identification number of the call from the other station extracted by the caller identification number corresponding unit ;
A predetermined period release processing unit that checks the state of the other party call identification number at a station in a predetermined cycle, and performs release processing when all are idle;
An arbitrary time release processing unit that checks the status of the partner call identification number for each station when a call release request occurs, and performs release processing when all are idle,
A call identification information management system comprising a call association function unit comprising: A call identification number management unit for assigning an identification number of a call of the local station when a call is generated and when a partner call is received;
  A call state from a partner station sent from a plurality of signal links, a call state of each link to determine and manage a call state of the own station, and
A link-specific partner call identification number corresponding unit that extracts an identification number of a partner call from link-specific call information sent from a plurality of signaling links;
Management of the data area for each link for writing the correspondence between the call partner identification number of the call extracted by the link partner call identification number corresponding unit and the call identification number of the own station, and providing a timer, when transmitting a signal, A data area management unit for each link that releases a call identification number for each link when a predetermined time has elapsed after starting a timer,
A call identification information management system comprising a link-by-link call association function unit.

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