JP4083948B2 - Exchange service addition method and apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an exchange service adding method and an apparatus therefor, and more particularly to a method for adding a new exchange service and an exchange to which a new exchange service is added.
[0002]
[Prior art]
In recent years, with the widespread use of electronic exchanges, various exchange services such as a power generation number display that displays the caller's telephone number have been developed, so that services that are convenient and easy to operate for exchange subscribers who are telephone and data communication users can be used. It has become. In order to introduce a new service, it is necessary to change the exchange and the exchange software corresponding to the new exchange service function.
[0003]
When the exchange is composed of a plurality of LCs (Line Concentrator) that accommodates a plurality of communication terminals and performs communication processing for the communication terminals, and a large HOST that controls the control signal path and communication path of each LC, In order to provide a new service and new function to a user, it is necessary to replace the hardware of the parent device and to develop and replace software for realizing the new service. However, since there are few users who introduce a new service at the beginning of the service, it is very expensive to replace all the hardware and software of the parent device from the beginning.
[0004]
For the introduction of a new service, a new HOST compatible with the new service is connected to the old HOST to which multiple LCs and lines are connected, and the call information received at the old HOST is transferred to the new HOST. The new HOST software that supports the new service, including the new service, processes the call information, including the new service, transfers control information from the new HOST to the old HOST, controls the old HOST hardware, and exchanges A method of performing processing has been proposed.
[0005]
[Problems to be solved by the invention]
The conventional method includes the old HOST service and the new HOST software that also supports the new service. The new HOST software controls the old HOST hardware by processing the call information including the processing of the new service. This is an effective method for the majority of subscribers receiving a new service. However, if many of the subscribers accommodated in the exchange consider the old service sufficient and do not want the new service, the new HOST There is a problem that the software becomes large and wasteful expenses for accommodating new services increase.
[0006]
The present invention has been made in view of the above points, and when the number of subscribers receiving a new service is small, the size of the software of the new device can be reduced, and unnecessary costs for accommodating the new service are incurred. It is an object of the present invention to provide an exchange service addition method and apparatus that can be eliminated.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 is an exchange service addition for adding a new service in an exchange station comprising a plurality of slave devices accommodating communication terminals and a master device for controlling the control signal path and communication path of each slave device. In the method
A new child device accommodating a communication terminal of a subscriber who receives the new service is connected to the parent device;
A new device for controlling the new service is connected to the parent device;
The parent device connects the signal link of the new child device and the signal link of the new device.
[0008]
In this way, in order to connect the signal link of the new child device and the signal link of the new device at the parent device, it is only necessary to control the control signal path and communication path of only the new child device with the new device. Since the control signal path and communication path of each child device are controlled by the parent device, the software size of the new device can be reduced when the number of subscribers receiving the new service is small, and it is wasteful to accommodate the new service. Without expensive costs.
[0009]
The invention according to claim 2 is the exchange service addition method according to claim 1,
The new child device of a communication terminal of a subscriber who receives the new service managed by the parent device when the parent device connects the signal link of the new child device and the signal link of the new device The terminal position accommodated in the trunk is converted into the trunk position managed by the new device.
[0010]
Thus, in order to convert the terminal position accommodated in the new child device managed by the parent device into the trunk position managed by the new device, the signal link of the new child device and the signal link of the new device are converted. Can be easily connected.
The invention according to claim 3 is the exchange according to claim 1 or 2,
A message for each child device is supplied from the parent device, the number of the child device included in the message is identified, and the message for the new child device is transmitted to the signal link of the new child device.
[0011]
In this way, since the number of the child device included in the message from the parent device to each child device is identified and the message for the new child device is transmitted to the signal link of the new child device, the new child device is sent from the parent device. Alarms and commands can be sent to and downloaded, and a new child device can be maintained from the parent device.
[0012]
According to a fourth aspect of the present invention, in the exchange according to the first aspect,
The parent device monitors the failure of the signal link of the new child device and the signal link of the new device, and stops connection with the other when one of the failures occurs.
In this way, the failure of each of the signal link of the new child device and the signal link of the new device is monitored, and when one of the failure occurs, the connection with the other is stopped. Therefore, it is possible to prevent the signal message from being erroneously transmitted.
[0013]
The invention according to claim 5 is a plurality of slave devices that accommodate communication terminals;
A parent device for controlling the control signal path and communication path of each child device;
Connect to the parent device New A new child device accommodating the communication terminal of the subscriber receiving the service,
A new device connected to the parent device and controlling the new service;
Signal link connection means provided in the parent device for connecting the signal link of the new child device and the signal link of the new device.
[0014]
In this way, in order to connect the signal link of the new child device and the signal link of the new device at the parent device, it is only necessary to control the control signal path and communication path of only the new child device with the new device. Since the control signal path and communication path of each child device are controlled by the parent device, the software size of the new device can be reduced when the number of subscribers receiving the new service is small, and it is wasteful to accommodate the new service. Without expensive costs.
[0015]
The invention described in claim 6 is the exchange according to claim 5,
The signal link connection means converts the terminal position accommodated in the new child device of the communication terminal of the subscriber who receives the new service managed by the parent device to the trunk position managed by the new device. It has the conversion means to convert.
Thus, in order to convert the terminal position accommodated in the new child device managed by the parent device into the trunk position managed by the new device, the signal link of the new child device and the signal link of the new device are converted. Can be easily connected.
[0016]
The invention according to claim 7 is the exchange according to claim 5 or 6,
A message provided to the parent device is supplied to each child device from the parent device, the number of the child device included in the message is identified, and the message for the new child device is a signal of the new child device. It has message transmission means for transmitting to the link.
[0017]
In this way, since the number of the child device included in the message from the parent device to each child device is identified and the message for the new child device is transmitted to the signal link of the new child device, the new child device is sent from the parent device. Alarms and commands can be sent to and downloaded, and a new child device can be maintained from the parent device.
[0018]
The invention according to claim 8 is the exchange according to claim 5,
A signal link monitoring unit is provided in the parent device, monitors a failure of each of the signal link of the new child device and the signal link of the new device, and stops connection with the other when one of the failures occurs.
In this way, the failure of each of the signal link of the new child device and the signal link of the new device is monitored, and when one of the failure occurs, the connection with the other is stopped. Therefore, it is possible to prevent the signal message from being erroneously transmitted.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a system configuration diagram of an embodiment of the method of the present invention. In the figure, LC12 is used for the old HOST10. ₁ ~ 12 _N , 14, 16 are accommodated. LC12 ₁ ~ 12 _N Each accommodates a plurality of communication terminals 20 of subscribers who use only the old service, LC 14 accommodates a plurality of analog communication terminals 22 of subscribers who use the new service in addition to the old service, and LC 16 A plurality of digital communication terminals 24 of subscribers who use the new service in addition to the service are accommodated. The old HOST 10 is connected to the new HOST 30, and the communication lines 11 and 31 are connected to the old HOST 10 and the new HOST 30, respectively. The above LC12 ₁ ~ 12 _N , 14, 16 and the old HOST 10 and the new HOST 30 are all installed in one exchange.
[0020]
Here, the LC 12 that accommodates the communication terminal 20 for the old service only ₁ As shown in FIG. 2A, the communication terminal 20 is connected to the LC12. ₁ The SLC (Subscriber Line Card) 40 is connected to an SD / SCN (Individual Line Signal Line Monitor) 42. The voice / data communication path via the SLC 40 of the communication terminal 20 and the control signal path via the SD / SCN 42 are LC12. ₁ And is switched in the old HOST 10 and connected to the partner station (receiving subscriber accommodation station) 35 without passing through the new HOST 30.
[0021]
Next, for the LC 14 that accommodates the analog communication terminal 22 to which the new service is added, as shown in FIG. 2B, the communication terminal 22 is connected to the SLC 40 of the LC 14, and the SD / SCN 42 is additionally provided in the SLC 40. ing. The voice / data communication path via the SLC 40 of the communication terminal 22 is switched in the LC 14, further switched in the old HOST 10, and further switched in the new HOST 30 to be connected to a partner station (not shown). The control signal path from the SD / SCN 42 to the CSE (Common Line Signal Control Device) 44 is switched in the LC 14, connected to the new HOST 30 without being switched in the old HOST 10, and switched in the new HOST 30. Connected to a partner station (not shown).
[0022]
As for the LC 16 accommodating the digital communication terminal 24 to which the new service is added, the communication terminal 24 is connected to a DLC (Digital Subscriber Line Card) 46 of the LC 16 as shown in FIG. An SGC (Signaling Controller) 48 is also provided. The voice / data communication path via the DLC 46 of the communication terminal 24 is switched in the LC 16, further switched in the old HOST 10, and further switched in the new HOST 30 to be connected to a partner station (not shown). The control signal path from the SGC 48 to the CSE 44 is switched in the LC 14, connected to the new HOST 30 without being switched in the old HOST 10, and switched in the new HOST 30 to be connected to a partner station (not shown).
[0023]
FIG. 3 shows a functional block diagram of an embodiment of the old HOST 10 in the method of the present invention. The new HOST 30 has the same configuration. In FIG. 3, an MTP (Message Transfer Part) function unit 50 includes each LC, a new HOST, a signal receiving unit 52 that receives a signal from a partner station, a signal analyzing unit 54 that analyzes the received signal, A new HOST and a signal transmission unit 56 for transmitting a signal to the other station.
[0024]
An LC capping function unit 58 is provided above the MTP function unit 50. The LC capping function unit 58 directly controls the LC 14 and 16 from the new HOST 30 by logically connecting the control signal path and the voice / data communication path between the LC 14 and 16 accommodating the communication terminal to which the new service is added and the new HOST 30. In addition, the voice / data information from the subscribers of the LCs 14 and 16 is exchanged with the other station by the new HOST 30, and charging / new service is provided by the new HOST 30. In addition, a maintenance operation signal from the new HOST 30 is transmitted to the LCs 14 and 16 to enable maintenance operation control from the new HOST 30. Further, the logically connected control signal path and voice / data communication path are managed, and in the case of a fault, fault information is transmitted to a device connected to a normal signal path, and signal transmission is stopped. In addition, it has a function of resuming signal transmission upon recovery.
[0025]
The MTP function unit 50 and the LC capping function unit 58 are connected to a call processing application unit 62 via an ISUP / TUP (ISDN User Part / Telephone User Part) conversion unit 60, and an SCCP (Signaling Connection Control Part) function. An LCOMMAP (LC Operation & Maintenance Application Part) unit 66 is connected via the unit 64.
[0026]
The MTP function unit 50 and the LC capping function unit 58 are connected to the OAM application function unit 72 via the OAM command analysis unit 68 and the response reception unit 70.
FIG. 4 is a functional schematic diagram of the LC capping function unit 58 of the old HOST 10. Here, a unique identifier (NID: Network Identifier) is attached to the intra-station signal link of the old HOST 10, and the LC 12 of the old HOST 10 is assigned. ₁ , 12 _N NID = 35, 36, the intra-station signal link with the LC 14 and 16 of the old HOST 10 is NID = 32, and the intra-station signal link with the new HOST 30 of the old HOST 10 is NID = 33. .
[0027]
In this case, the signal message from the intra-station signal link with NID = 35, 36 is transferred from the MTP function unit 50 to the upper application such as the call processing application unit 62, the LCOMMAP unit 66, the OAM application function unit 72 through the LC capping function unit 58. Supplied. On the other hand, the signal message from the intra-station signal link with NID = 32 is transferred to the new HOST 30 from the intra-station signal link with NID = 33 by performing predetermined message conversion in the LC capping function unit 58. Similarly, a message from the intra-station signal link with NID = 33 is also transferred to the intra-station signal link with NID = 32.
[0028]
In addition, the maintenance operation for LCs 14 and 16 is LC12. ₁ ~ 12 _N As with the maintenance operation, the old HOST 10 is used, and the file is downloaded from the old HOST 10. For this purpose, the LC capping function unit 58 of the old HOST 10 causes alarms, commands, and file downloads from the application of the old HOST 10 to flow on the intra-station signal link of NID = 32. Specifically, the LC capping function unit 58 checks the LC number in the message to the LC, and when this LC number is LC14 or 16, transmits this message to the intra-station signal link of NID = 32.
[0029]
FIG. 5 shows a block diagram of an embodiment of the call processing function of the LC capping function unit 58 of the old HOST 10. In the figure, the intra-station message receiving unit 58a receives a message from the LC 14, 16 to which the new service is added or the new HOST 30 and supplies it to the intra-station message analyzing unit 58b. The in-station message analysis unit 58b supplies the message to the upper application from the NID of the in-station signal link and the message signal link number SLN [= LSN (link set number) + SLC (signal link code)] to which the message is input, or the new HOST 30 or new Analyzing whether to transfer to the intra-station signal link for the LCs 14 and 16 to which the service has been added, notifies the intra-station message editing section 58c. The in-station message analysis unit 58b analyzes whether the incoming call number DN sent from another station is supplied to the host application or transferred to the in-station signal link for the LCs 14 and 16 to which the new HOST 30 or new service is added. Notify the editing unit 58c.
[0030]
The intra-office message editing unit 58c refers to the conversion table 58d shown in FIG. 6 for the message coming from the intra-station signal link of NID = 32, and converts the LCC (subscriber terminal information) in the message to the HOST trunk position (trunk group TG + trunk The number is converted into a number TKN, the NID in the message is changed, and the message is transferred from the intra-station message transmission unit 58f to the new HOST 30. Further, the intra-station message editing unit 58c is a conversion table 58g shown in FIG. , The incoming call number DN is converted into the HOST trunk position (trunk group TG + trunk number TKN, NID is further added, and it is transferred from the intra-station message transmission unit 58f to the new HOST 30.
[0031]
In addition, the intra-station signal link between the old HOST 10 and the new HOST 30 and the intra-station signal link between the old HOST 10 and the LCs 14 and 16 are logically connected by the LC capping function unit 58, but the MTP function unit 50 has different communication links. Recognized as a link. For this reason, even if the intra-station signal link between the new HOST 30 and the LCs 14 and 16 is disconnected, the intra-station signal link between the new HOST 30 and the old HOST 10 may be regarded as normal and a message may flow. In order to avoid this, the intra-station message editing unit 58c manages the intra-station signal link logically connected by the intra-station signal link identifier connection table 58e shown in FIGS. In the event of a failure, messages should not be sent to the other intra-station signaling link connected to it. 7A and 7B, the first bit of each element of the intra-station signal link identifier connection table 58e is a target link mounting flag. In this flag, a value 1 indicates mounting, and a value 0 indicates unmounted. ing.
[0032]
FIG. 8 shows a block diagram of an embodiment of the call processing function of the LC capping function unit 58 of the new HOST 30. In the figure, an intra-station message receiving unit 59a receives a message from the call processing application unit 62 or the old HOST 10 and supplies it to the intra-station message analyzing unit 59b. The in-office message analysis unit 59b supplies the message to the upper application from the NID of the in-station signal link and the message signal link number SLN [= LSN (link set number) + SLC (signal link code)] to which the message is input, or the old HOST 10 or new Analyze whether to transfer to the intra-station signal link for the LCs 14 and 16 to which the service is added. Then, the message transmitted from the intra-station signaling link with NID = 33 refers to the conversion table 59c shown in FIG. 9 and converts the HOST trunk position (trunk group TG + trunk number TKN in the message into LCC (subscriber terminal information). Then, the message is transferred from the intra-station message transmission unit 59d to the old HOST 10.
[0033]
FIG. 10 shows a flowchart of an embodiment of the intra-station signal link connection processing executed in the old HOST 10. In the figure, when a signal is received from the new HOST 30 through the intra-station signal link of NID = 33 in step S10, the signal analysis unit 54 determines whether or not the NID of the received signal is registered in the intra-station signal link identifier connection table 58e in step S12. If it is not registered, normal processing is performed in step S14. On the other hand, if registered, the process proceeds to step S16, and the in-station message receiving unit 58a of the LC capping function unit 58 receives a signal message.
[0034]
Next, the intra-office message editing unit 58c replaces the NID of this message with NID = 32 in step S18, the intra-office message transmission unit 58f transmits this message to the MTP function unit 50 in step S20, and the MTP function unit 50 in step S22. The signal transmitter 56 transmits this message to the intra-station signal link of NDI = 32.
[0035]
FIG. 11 shows a flowchart of an embodiment of a communication start process when a call is made from the digital communication terminal 24 to which a new service is added. FIG. 12 shows an operation sequence in this case. In FIG. 11, when the communication terminal 24 of the subscriber on the LC 16 side is off-hooked in step S30, off-hook is detected by the DLC 46 of the LC 16 in step S32. As a result, the call processing unit of the LC 16 creates a SETUP message in step S34, and this message is transmitted from the SGC 48 of the LC 16 to the old HOST 10 through the intra-station signal link (NID = 32) in step S36.
[0036]
Next, in step S38, the signal analysis unit 54 of the old HOST 10 checks whether the NID of the received signal is registered in the intra-station signal link identifier connection table 58e, and if it is registered, transmits it to the LC capping function unit 58. Next, in step S40, the intra-station message editing unit 58c acquires the new HOST 30 side connection NID (NID = 33) from the intra-station signal link identifier connection table 58e, and sets the NID of the message to the new HOST 30 side connection NID (NID = 33). Referring to the conversion table 58d shown in FIG. 6, the LCC (subscriber terminal information) in the message is converted into the HOST trunk position (trunk group TG + trunk number TKN), and the intra-station message transmitter 58f converts the message into the MTP function. The data is transmitted to the new HOST 30 via the unit 50.
[0037]
Next, in step S42, the signal analysis unit 54 of the new HOST 30 checks whether the NID of the received signal is registered in the intra-station signal link identifier connection table 58e, and if it is registered, transmits it to the LC capping function unit 58. In step S44, the intra-station message analysis unit 59b in the LC capping function unit 58 of the new HOST 30 refers to the conversion table 59c shown in FIG. 9, and converts the HOST trunk position (trunk group TG + trunk number TKN in the message into the LCC (subscriber terminal). Information), the LCC attribute and status are changed from idle to outgoing, and sent to the call processing application unit 62. In step S46, the call processing application unit 62 analyzes the SETUP message and accommodates the incoming subscriber. Send an initial address message (IAM) to the station HOST.
[0038]
Thereafter, as shown in FIG. 12, the address complete (ACM) is returned from the host of the receiving subscriber accommodation station to the new HOST 30 and a ring back tone (RBT) is transmitted to the originating LC 16. Thereafter, when an answering charge (ANC) is returned from the called subscriber accommodation station to the new HOST 30 due to the off-hook of the communication terminal of the called subscriber, communication is started.
[0039]
FIG. 13 shows a flowchart of an embodiment of communication end processing by on-hook of the digital communication terminal 24 to which a new service is added. FIG. 12 shows an operation sequence in this case. In FIG. 13, when the subscriber's communication terminal 24 on the LC 16 side is on-hooked in step S50, the on-hook is detected by the DLC 46 of the LC 16 in step S52. Thereby, in step S54, the call processing unit of the LC 16 creates a release message (REL), and transmits this message from the SGC 48 of the LC 16 to the old HOST 10 through the intra-station signaling link (NID = 32).
[0040]
Next, in step S56, the signal analysis unit 54 of the old HOST 10 confirms whether the NID of the received signal is registered in the intra-station signal link identifier connection table 58e, and if it is registered, transmits it to the LC capping function unit 58. Next, in step S58, the intra-station message editing unit 58c acquires the new HOST 30 side connection NID (NID = 33) from the intra-station signal link identifier connection table 58e, and sets the NID of the message to the new HOST 30 side connection NID (NID = 33). Referring to the conversion table 58d shown in FIG. 6, the LCC (subscriber terminal information) in the message is converted into the HOST trunk position (trunk group TG + trunk number TKN), and the intra-station message transmitter 58f converts the message into the MTP function. The data is transmitted to the new HOST 30 via the unit 50.
[0041]
Next, in step S60, the signal analysis unit 54 of the new HOST 30 confirms whether the NID of the received signal is registered in the intra-station signal link identifier connection table 58e, and if it is registered, transmits it to the LC capping function unit 58, The intra-station message analysis unit 59b in the LC capping function unit 58 of the HOST 30 refers to the conversion table 59c shown in FIG. 9 and converts the HOST trunk position (trunk group TG + trunk number TKN in the message into LCC (subscriber terminal information). Then, the LCC attribute and status are changed to wait for release complete (RLC) and sent to the call processing application unit 62. In step S62, the call processing application unit 62 processes the incoming subscriber from the new HOST 30. Release message to station HOST Sending a REL). Then, to end the communication by changing the idle attributes and status of LCC upon receipt of the release complete message (RLC) from HOST incoming subscriber accommodation station as shown in FIG. 12.
[0042]
FIG. 14 shows an operation sequence of an embodiment of the incoming call processing of the digital communication terminal 24 to which a new service controlled by the new HOST 30 is added. In FIG. 14, when an initial address message (IAM) that is transmitted from the originating station to the digital communication terminal 24 accommodated in the LC 16 is received by the old HOST 10, the LC capping function unit 58 of the old HOST 10 The NID of the message is replaced with the new HOST 30 side connection NID (NID = 33), the incoming number DN is converted into the HOST trunk position (trunk group TG + trunk number TKN with reference to the conversion table 58g shown in FIG. 58 f transmits this message to the new HOST 30 via the MTP function unit 50.
[0043]
In the new HOST 30, after checking the subscriber information, the HOST trunk position (trunk group TG + trunk number TKN in the message is converted into LCC (subscriber terminal information) by referring to the conversion table 59c shown in FIG. (For example, LC16) is connected and the address complete (ACM) is sent back to the originating station, the ringing tone is instructed to the destination LC, and the ring back tone (RBT) is sent to the originating station. When the communication terminal 24 is off-hook, the new HOST 30 transmits an answer charge (ANC) to the originating station and communication is started.
[0044]
Next, when the communication terminal 24 of the subscriber on the LC 16 side is on-hooked, the DLC 46 of the LC 16 detects the on-hook, the call processing unit of the LC 16 creates a release message (REL), and sends this message to the new HOST 30. The new HOST 30 sends this release message (REL) to the originating station. Then, the new HOST 30 receives a release complete message (RLC) from the originating station, and communication is completed.
[0045]
FIG. 16 shows a block diagram of an embodiment of the download function of the LC capping function unit 58 of the old HOST 10. In the figure, the same parts as those in FIG. The intra-station message receiving unit 58 a in the LC capping function unit 58 is connected to the LCOMMAP unit 66 via the SCCP function unit 64, and download data is supplied from the LCOMMAP function unit 66. This download data is supplied to the intra-station message analysis unit 58b, and the LC12 is transmitted from the intra-station message transmission unit 58f according to the NID (NID = 32, 35, or 36) in the message. ₁ ~ 12 _N , 14 and 16.
[0046]
FIG. 17 shows a block diagram of an embodiment of the command processing function of the LC capping function unit 58 of the old HOST 10. In the figure, the OAM command output from the OAM application function unit 72 is received by the OAM command receiving unit 68a in the OAM command analyzing unit 68, and for the new HOST 30 or the LCs 14 and 16 to which a new service is added by the command analyzing unit 68b. The OAM commands for the LCs 14 and 16 to which the new service is added are supplied from the in-station message receiving unit 58a in the LC capping function unit 58 to the in-station message analyzing unit 58b. The in-station message analysis unit 58b adds a sequence number for the target LC and transfers it from the in-station message transmission unit 58f to the LCs 14, 16 through the MTP function unit 50.
[0047]
FIG. 18 shows a flowchart of an embodiment of the LC file download process executed by the old HOST 10. In FIG. 18, the LCOMMAP function unit 66 of the old HOST 10 sets the NID (NID = 32) of the download target LC and transmits a download start message to the SCCP function unit 64 in step S70. Next, in step S 72, the SCCP function unit 64 transmits a download start message to the LC capping function unit 58.
[0048]
In step S74, the in-station message analysis unit 58b of the LC capping function unit 58 checks whether or not the NID of the download target LC (NID = 32). The signaling link (NID = 32) is blocked, and in the case of the download target LC, the download data is supplied to the MTP function unit 50 as it is.
[0049]
FIG. 19 shows a flowchart of an embodiment of command input processing executed by the old HOST 10. In FIG. 19, the OAM command accepting unit 68a in the OAM command analyzing unit 68 accepts the OAM command supplied from the OAM application function unit 72 in step S80. Next, in step S82, the command analysis unit 68b determines whether the OAM command is for the new HOST 30 or the LCs 14 and 16 to which the new service is added, and the LC capping function unit 58 converts the OAM command for the LCs 14 and 16 to which the new service has been added. Is supplied from the in-station message receiving unit 58a to the in-station message analyzing unit 58b. Next, in step S84, the in-station message analysis unit 58b adds a sequence number for the target LC and transmits it to the MTP function unit 50 from the in-station message transmission unit 58f. Furthermore, when the response to the OAM command transmitted from the intra-station message receiving unit 58a in the LC capping function unit 58 in step S86 arrives from the LCs 14 and 16 to which the new service is added, the intra-station message analysis unit 58b holds it. The sequence number is added and sent to the OAM application unit 72 through the response receiving unit 70.
[0050]
FIG. 20 shows a flowchart of an embodiment of the intra-station signal link management process executed by the old HOST 10. In FIG. 20, when a response signal (response) of the in-station signal link management number supplied from the new HOST 30 or the like is received by the signal analysis unit 54 of the MTP function unit 50 in step S90, or a signal link failure event is received from the signal reception unit 52. Receive. Thereby, in step S92, the signal analysis unit 54 checks whether or not the intra-station signal link notified by the response or failure event is registered in the intra-station signal link identifier connection table 58e. Is transmitted to the LC capping function unit 58.
[0051]
Next, in step S94, if the failure information received by the intra-station message editing unit 58c of the LC capping function unit 58 is on the LC side, the target link on the new HOST side of the intra-station signal link identifier connection table 58e shown in FIG. A failure is set, and a connection link failure message is transmitted to the new HOST 30 from the intra-station message transmission unit 58f and notified. If the received failure information is an intra-station signal link on the new HOST side, the target link on the LC side in the intra-station signal link identifier connection table 58e shown in FIG. Also, the status of the intra-station signal link on the LC side is notified to be a failure.
[0052]
FIG. 21 shows an operation sequence of an embodiment of the intra-station signal link management process. In FIG. 21, when the MTP function unit 50 of the old HOST 10 receives a signal link failure event from the LCs 14 and 16 to which a new service has been added, the MTP function unit 50 notifies the LC capping function unit 58 of the signal link failure event, and the LC capping function. The unit 58 transmits the logical station link failure message to the new HOST 30 via the MTP function unit 50. The LC capping function unit 58 of the new HOST 30 that has received the notification notifies the application of the link failure within the logical station.
[0053]
When the MTP function unit 50 of the old HOST 10 receives the signal link recovery event from the LCs 14 and 16 to which the new service is added, the MTP function unit 50 notifies the LC capping function unit 58 of the signal link recovery event, and the LC capping function unit 58 Transmits a logical station link recovery message to the new HOST 30 via the MTP function unit 50. The LC capping function unit 58 of the new HOST 30 that has received this notifies the application of link recovery within the logical station.
[0054]
As described above, in this embodiment, the signal link of the LCs 14 and 16 to which the new service is added in the old HOST 10 and the signal link of the new HOST 30 are connected. Just control the existing LC12 ₁ ~ 12 _N Since each control signal path and communication path are controlled by the old HOST 10, when the number of subscribers receiving the new service is small, the size of the software of the new HOST 30 can be reduced, and there is a wasteful cost for accommodating the new service. It does n’t take a long time. FIG. 22 shows the effective range of the LC capping method using the LC capping function unit 58 of the present invention with respect to the number of subscribers of the exchange and the effective range of the conventional method. As is apparent from this figure, the conventional method is effective only when the number of subscribers is large, whereas the present invention is effective in a wide range from the case where the number of subscribers is small to the case where the number of subscribers is large.
[0055]
Further, in order to convert the terminal position (LCC) accommodated in the LCs 14 and 16 managed by the old HOST 10 into the trunk position (TG + TKN) managed by the new HOST 30, the signal links of the LCs 14 and 16 and the new HOST 30 Connection to the signal link can be easily performed. In addition, since the LC number included in the message for each LC from the old HOST 10 is identified and the message for the LC 14, 16 is transmitted to the signal link of the LC 14, 16, an alarm or command is sent from the old HOST 10 to the LC 14, 16; Downloading can be performed, and maintenance operation of the LCs 14 and 16 from the old HOST 10 can be performed.
[0056]
Further, the failure of each of the signal links of the LCs 14 and 16 and the signal link of the new HOST 30 is monitored, and when one of the failures occurs, the connection with the other is stopped. Can be prevented from being sent by mistake.
LC12 ₁ ~ 12 _N Corresponds to the child device described in the claims, the old HOST 10 corresponds to the parent device, the LCs 14 and 16 correspond to the new child device, the new HOST 30 corresponds to the new device, and the LC capping function unit 58 is connected to the signal link. The conversion table 58d corresponds to the conversion means, steps S70 to 74 correspond to the message transmission means, and steps S90 to S94 correspond to the signal link monitoring means.
[0057]
【The invention's effect】
As described above, according to the first aspect of the present invention, since the parent device connects the signal link of the new child device and the signal link of the new device, the control signal path and the communication path of only the new child device are connected to the new device. Since the control signal path and communication path of each of a plurality of existing child devices are controlled by the parent device, the software size of the new device is small when the number of subscribers receiving the new service is small. And there is no need to waste money to accommodate new services.
[0058]
According to the second aspect of the present invention, the terminal position accommodated in the new child device managed by the parent device is converted to the trunk position managed by the new device. Connection with a signal link of a new device can be easily performed.
According to the third aspect of the present invention, the number of the child device included in the message from the parent device to each child device is identified, and the message for the new child device is transmitted to the signal link of the new child device. From the parent device, alarms and commands can be sent to and downloaded, and maintenance operation of the new child device can be performed from the parent device.
[0059]
The invention according to claim 4 monitors the failure of the signal link of the new child device and the signal link of the new device, and stops the connection with the other when one of the failure occurs. Sometimes it is possible to prevent signaling messages from being erroneously sent to the other signaling link.
According to the fifth aspect of the present invention, since the parent device connects the signal link of the new child device and the signal link of the new device, if the control signal path and the communication path of only the new child device are controlled by the new device, Well, since the control signal path and communication path of each of the existing child devices are controlled by the parent device, the software size of the new device can be reduced when the number of subscribers receiving the new service is small, and the new service There is no wasteful cost for accommodation.
[0060]
According to the sixth aspect of the present invention, in order to convert the terminal position accommodated in the new child device managed by the parent device into the trunk position managed by the new device, the signal link of the new child device and Connection with a signal link of a new device can be easily performed.
According to the seventh aspect of the present invention, the number of the child device included in the message from the parent device to each child device is identified, and the message for the new child device is transmitted to the signal link of the new child device. From the parent device, alarms and commands can be sent to and downloaded, and maintenance operation of the new child device can be performed from the parent device.
[0061]
The invention according to claim 8 monitors the failure of the signal link of the new child device and the signal link of the new device, and stops the connection with the other when one of the failures occurs. Sometimes it is possible to prevent signaling messages from being erroneously sent to the other signaling link.
[Brief description of the drawings]
FIG. 1 is a system configuration diagram of an embodiment of a method of the present invention.
FIG. 2 is a diagram showing a connection configuration of each LC with an old HOST and a new HOST.
FIG. 3 is a functional block diagram of an embodiment of the old HOST 10 in the method of the present invention.
4 is a functional outline diagram of an LC capping function unit 58 of the old HOST 10. FIG.
FIG. 5 is a block diagram of an example of a call processing function of an LC capping function unit 58 of the old HOST 10;
FIG. 6 is a diagram showing a configuration of a conversion table 58d.
FIG. 7 is a diagram showing a configuration of an intra-station signal link identifier connection table 58e.
8 is a block diagram of an example of a call processing function of the LC capping function unit 58 of the new HOST 30. FIG.
FIG. 9 is a diagram illustrating a configuration of a conversion table 59c.
FIG. 10 is a flowchart of an embodiment of intra-station signal link connection processing executed in the old HOST 10;
FIG. 11 is a flowchart of an embodiment of a communication start process when a call is made from the digital communication terminal 24 to which a new service is added.
FIG. 12 is an operation sequence of an embodiment of communication processing when a call is made from the digital communication terminal 24 to which a new service is added.
FIG. 13 is a flowchart of an embodiment of a communication end process by on-hook of a digital communication terminal 24 to which a new service is added.
FIG. 14 is an operation sequence of an embodiment of an incoming call process of the digital communication terminal 24 to which a new service controlled by the new HOST 30 is added.
FIG. 15 is a diagram showing a configuration of a conversion table 58g.
16 is a block diagram of an example of a download function of the LC capping function unit 58 of the old HOST 10. FIG.
17 is a block diagram of an example of a command processing function of an LC capping function unit 58 of the old HOST 10. FIG.
FIG. 18 is a flowchart of an embodiment of an LC file download process executed by the old HOST 10;
FIG. 19 is a flowchart of an embodiment of command input processing executed by the old HOST 10;
FIG. 20 is a flowchart of an embodiment of an intra-station signal link management process executed by the old HOST 10;
FIG. 21 is an operation sequence of an embodiment of intra-station signal link management processing;
FIG. 22 is a diagram showing the effective range of the method of the present invention and the conventional method with respect to the number of subscribers of an exchange.
[Explanation of symbols]
10 Old HOST
12 ₁ ~ 12 _N , 14, 16 LC
20, 22, 24 Communication terminal
30 New HOST
50 MTP function part
52 Signal receiver
54 Signal Analysis Unit
56 Signal transmitter
58 LC capping function part
58a, 59a Intra-station message receiver
58b, 59b Intra-office message analyzer
58c Intra-station message editor
58d, 58d, 59c conversion table
58f, 59d Intra-station message transmitter
62 Call processing application part
66 LCOMMAP Department
68 OAM command analyzer
70 Response reception part

Claims (8)

In an exchange service addition method for adding a new service in an exchange station composed of a plurality of slave devices that accommodate communication terminals and a master device that controls the control signal path and communication path of each slave device,
A new child device accommodating a communication terminal of a subscriber who receives the new service is connected to the parent device;
A new device for controlling the new service is connected to the parent device;
The switching service addition method, wherein the parent device connects the signal link of the new child device and the signal link of the new device. The exchange service adding method according to claim 1,
The new child device of a communication terminal of a subscriber who receives the new service managed by the parent device when the parent device connects the signal link of the new child device and the signal link of the new device The exchange is converted to a trunk position managed by the new device. The exchange according to claim 1 or 2,
A message for each child device is supplied from the parent device, the number of the child device included in the message is identified, and the message for the new child device is transmitted to the signal link of the new child device. An exchange. The exchange according to claim 1, wherein
The switching system characterized in that the parent device monitors a failure of each of the signal link of the new child device and the signal link of the new device, and stops connection with the other when one of the failures occurs. A plurality of slave devices accommodating communication terminals;
And new child device to accommodate the communication terminal subscribers connected to the parent device parent device receives a new service for controlling the control signal path and a communication path for each child device,
A new device connected to the parent device and controlling the new service;
An exchange comprising: a signal link connection means provided in the parent device for connecting a signal link of the new child device and a signal link of the new device. The exchange according to claim 5,
The signal link connection means converts the terminal position accommodated in the new child device of the communication terminal of the subscriber who receives the new service managed by the parent device to the trunk position managed by the new device. An exchange having a conversion means for converting. The exchange according to claim 5 or 6,
A message provided to the parent device is supplied to each child device from the parent device, the number of the child device included in the message is identified, and the message for the new child device is a signal of the new child device. An exchange having message transmission means for transmitting to a link. The exchange according to claim 5,
Signal link monitoring means provided in the parent device, for monitoring a failure of each of the signal link of the new child device and the signal link of the new device, and stopping connection with the other when one of the failures occurs An exchange.

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