KR100418473B1 - Internet Call Processing Apparatus And Method For Internet PPP Service In Switching System - Google Patents

Abstract

The present invention does not associate a separate external Internet matching device for an Internet call requiring an Internet Point-to-Point Protocol (PPP) service in an exchange system, and allocates and releases an IP (Internet Protocol) address within the exchange system. The present invention relates to an internet call processing apparatus and method for an Internet PPP service in an exchange system capable of performing internet call processing.

The conventional exchange system cannot process an internet call by directly connecting the internet, and can process the internet call only through an external internet access device using outgoing call processing, thus occupying the relay line for a long time and thus cannot use the relay line efficiently. In addition, there was a drawback in not providing subscribers with more various Internet services directly.

The present invention registers and manages IP addresses for each service provider for the Internet PPP service in a database, and registers and manages them in the switching system. When the Internet call requesting the Internet PPP service is received, the corresponding IP address is allocated and released. It is possible to perform Internet call processing for Internet PPP services within the service, thereby providing a variety of Internet services directly to subscribers.

Description

Internet Call Processing Apparatus And Method For Internet PPP Service In Switching System

The present invention relates to an internet call processing apparatus and method for an Internet point-to-point protocol (PPP) service in a switching system, and in particular, does not connect a separate external internet matching device to an internet call requiring the corresponding internet PPP service. The present invention relates to an Internet call processing apparatus and method for an Internet PPP service in an exchange system that can perform Internet call processing by allocating and releasing an Internet Protocol (IP) address in a corresponding exchange system.

In general, there are two methods of accessing the Internet: a private line and a dial-up IP connection using a telephone line. When the telephone line is connected to the Internet, the exchange system to which the telephone line is connected handles Internet traffic. A separate external internet connection is required for this.

That is, in the conventional switching system, since no device for processing Internet traffic has been developed in the internal exchange system, the Internet traffic identified as Internet traffic cannot be directly connected to the Internet from inside the system. It provides only the function that connects to the external internet access device through the relay line.

In addition, the Internet access device outside the switching system occupies a line to the Internet, and performs a series of functions for processing Internet traffic such as allocating an IP address so that a corresponding Internet service can be provided.

On the other hand, the schematic call processing structure of the switching system connected to the external Internet connection device is shown in Figure 1 of the subscriber call processing unit 11, the trunk line control unit 12, the relay call processing unit 13 and And a number translation unit 14 and a root control unit 15, the subscriber call processing unit 11 includes subscriber types (wired subscribers, mobile subscribers, integrated service digital network (ISDN) subscribers, and wireless local loops). ) Performs the corresponding call processing according to the subscriber, etc., and the corresponding trunk line control unit 12 connects the external Internet access device 20 for Internet traffic processing through a general relay line under the control of the relay call processing unit 13. The relay call processor 13 performs a relay call processing for processing a general relay call or Internet traffic. Then, the number translation unit 14 translates the called number input from the subscriber, and the route control unit 15 controls the path selection according to various call processing.

Referring to FIG. 2, the operation of processing Internet traffic in the conventional switching system configured as described above is as follows.

First, when the subscriber of the switching system 10 dials the called party including the Internet station number, the subscriber call processing unit 11 collects the dialed called party number and requests the number translation unit 14 to translate the number. (Step S21), the number translation unit 14 translates the requested called number to confirm whether the called number is a called number for requesting Internet connection (step S22).

At this time, if the called party is not the called party for requesting Internet access, general call processing is performed (step S23).

However, if the called party is a called party that requires internet access, the route control unit 15 searches for the route sequence assigned to the translated called party (step S24), so that the route to be actually relayed, that is, the external Internet connection device ( 20, the outgoing route route is found and notified to the relay line control unit 12 through the relay call processing unit 13 (step S25), and the relay line control unit 12 is currently unused among the relay lines included in the notified outgoing route. By occupying the relay line (step S26), the internet call is connected to the external internet connection device 20 (step S27).

Here, the route sequence means a group of routes (trunk groups) to group a plurality of routes for the traffic separation function, and to select a route that meets the conditions according to the routing policy of the switching system 10.

Then, the external Internet access device 20 performs a series of functions for general transmission control protocol (TCP) / IP processing such as IP address allocation and routing, and accordingly, the relay call processing unit of the switching system 10 13 processes the call on the Internet (step S28).

Subsequently, when the subscriber releases the connection to terminate the Internet call, the corresponding connection release signal is input to the relay call processing unit 13 of the switching system 10, and accordingly, the relay call processing unit 13 transmits the relay line control unit. After controlling (12) to release the occupied relay line (step S29), the Internet call is terminated.

As described above, the conventional switching system does not process the Internet call by directly connecting the Internet, and can process the Internet call only through an external Internet access device using outgoing call processing, thus occupying the relay line for a long time. It could not be used efficiently, and there was a drawback in not providing subscribers with more various Internet services.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to register and manage a service provider's IP address for an Internet PPP service in a database, and to register and manage the service within an exchange system. In this case, by allocating and releasing a corresponding IP address, it is possible to perform Internet call processing for an Internet PPP service in a corresponding exchange system.

1 is a diagram illustrating schematic call processing of a conventional switching system to which an external Internet access device is connected.

2 is a flowchart illustrating an operation of internet traffic processing in a conventional switching system.

3 is a diagram illustrating an Internet call processing structure for an Internet PPP service in a switching system according to the present invention.

4 is a diagram illustrating an operator command for IP address management of each provider of the IP address database in FIG.

5 is a flowchart illustrating an operation of Internet call processing for an Internet PPP service in a switching system according to the present invention.

Explanation of symbols on the main parts of the drawings

30: exchange system 31: Internet matching unit

32: subscriber call processing unit 33: relay line control unit

34: relay call processing unit 35: number translation unit

36: route control unit 37: IP address management unit

38: IP address control unit 39: IP address database

39-1: Operator Information Table 39-2: IP Address Table

40: external internet matching device

A feature of the present invention for solving the object as described above, in the switching system to connect the external Internet matching device to perform the Internet call processing, storing the IP address for each operator for the Internet call processing requesting the Internet PPP service An IP address database; An IP address manager for processing, registering, canceling, changing, and outputting operator-specific IP address of the IP address database by processing an operator-specific IP address input command from an operator terminal; An IP address controller configured to search the IP address database and to allocate and release an IP address for Internet call processing requiring an Internet PPP service; A switching system comprising an internet matching unit which receives an IP address from the IP address control unit and occupies an internet line for internet access, releases the internet line occupancy and returns an assigned IP address at the end of an internet call; To provide an Internet call processing apparatus for the Internet Phi Phi service.

The IP address database includes a service provider information table for storing service provider information corresponding to the called party; It is characterized in that it comprises an IP address table connected to the service provider information table connected to the risk of storing the IP addresses and internal information.

Another feature of the present invention includes the steps of: allocating an IP address if the collected called number is a called number requesting an Internet PPP service, and requesting possession of the Internet line; Connecting an internet call by occupying an internet line; The present invention provides a method for processing an internet call for an internet PPI service in a switching system comprising the step of releasing the internet line, releasing the IP address and terminating an internet call when the internet connection is released.

The request for occupying the Internet line may include: translating the called number into a called number requesting an Internet PPP service; Requesting a corresponding IP address assignment when the called party requests the Internet PPP service; Searching the IP address database and assigning the requested IP address; Connecting to the Internet and requesting possession of the Internet line for Internet call processing requesting the Internet PPP service.

Further, the allocating the IP address may include: searching a service provider information table to identify a service provider name associated with a called party number; Allocating an unused IP address among IP addresses in the IP address table corresponding to the confirmed operator name; And using the assigned IP address in the IP address table.

The step of terminating the Internet call may include: releasing the Internet line occupation when the Internet connection is released; Checking whether the currently processed Internet call was an Internet call requesting an Internet PPP service; Requesting the release of the assigned IP address when the Internet call requested the Internet PPP service; Changing the requested IP address to an unused one and returning it to the IP address database.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The Internet call processing structure for the Internet PPP service in the switching system according to the present invention includes an Internet matching unit 31, a subscriber call processing unit 32, a relay line control unit 33, and the like as shown in FIG. And a relay call processing unit 34, a number translation unit 35, a route control unit 36, an IP address management unit 37, an IP address control unit 38 and an IP address database 39.

The Internet matching unit 31 is in charge of occupying and releasing the Internet line to the Internet, but is assigned an IP address from the IP address control unit 38 to occupy the Internet line for Internet access, and when the Internet call is terminated, At the same time as the release, the assigned IP address is returned, and the subscriber call processing unit 32 collects the calling party number for each subscriber type, requests for number translation for the collected calling party number, the demand for occupying the Internet line, and the point-to-point. Point Protocol) Performs call processing such as IP address allocation request for Internet call requesting service.

The relay line control unit 33 connects the external Internet access device 40 for the Internet traffic processing through the general relay line under the control of the relay call processing unit 34, the relay call processing unit 34 is a general relay call or Internet traffic Relay call processing for processing is performed.

The number translation unit 35 translates the called number to determine the general Internet station number and the Internet PPP service station number. The route control unit 36 selects a path for Internet call processing through a general relay line when the Internet line occupancy fails. .

The IP address management unit 37 performs IP address management for each provider of the IP address database 39 by processing an operator-specific IP address related command inputted from an operator terminal, and performs a service provider information table of the IP address database 39 ( 39-1) and the IP address table 39-2 are created, changed, deleted, and accessed. The IP address controller 38 searches the IP address database 39 to perform Internet call processing requiring an Internet PPP service. It allocates and releases IP addresses for the server.

The IP address database 39 stores an IP address for each service provider for Internet call processing that requires an Internet PPP service, and a service provider information table 39-1 for storing service provider information corresponding to the called party, as shown in Table 1 below. And an IP address table 39-2 that is connected to the corresponding provider information table 39-1 as a connection risk and stores IP addresses and internal information as shown in Table 2 below.

Field name Contents form Relation name R_SPID_INFO - The number of tuples All 100 - Key value D_SPID (business identification number) INT (0:99) Attribute D_SP_NAME (business name) D_IP_PTR (IP address table pointer) CHR (10) INT (0: 4999)

Field name Contents form Relation name R_IP_ADDRESS - The number of tuples 5000 pcs - Key value D_IP_INDEX (index) INT (0: 4999) Attribute D_TUP_ASSIGN (tuple is allocated) D_POS_A (first bit of IP address) D_POS_B (second bit of IP address) D_POS_C (third bit of IP address) D_POS_D (fourth bit of IP address) D_IP_ASSIGN (in use / unused indication) Call processing unit address) BOOL (Boolean) INT (0: 255) INT (0: 255) INT (0: 255) INT (0: 255) BOOL (Boolean) INT

In addition, the information of the service provider information table 39-1 and the IP address table 39-2, that is, the service provider IP address information according to the operator command as shown in FIG. 4, is attached to the IP address management unit 37. IP address that is registered, canceled, changed, and printed out, and is assigned or released when processing an internet call that requires the corresponding Internet PPP service, is changed in the IP address table 39-2. This reduces the speed of access to the IP address database 39.

The operation of the Internet traffic processing in the switching system according to the present invention configured as described above will be described with reference to FIG. 5.

First, when a subscriber of the switching system 30 dials a predetermined called number, the subscriber call processor 32 collects the dialed called number and requests the number translation unit 35 to translate the number (step S51), The number translation unit 35 translates the required called party number and checks whether the called party number is an Internet station number requesting Internet access (step S52).

At this time, if the called party number is not the Internet station number requesting Internet access, general call processing is performed (step S53). If the called party number is the Internet station number requiring Internet access, the called party requesting the Internet PPP service again. The acknowledgment is confirmed (step S54).

If it is determined that the called party is not the called party requesting the Internet PPP service, that is, the called party is the called party requiring the general Internet service, the number translation unit 35 calls the subscriber call processor 32. The Internet matching section 31 is requested to occupy the Internet line (step S55). Accordingly, the Internet matching section 31 searches the Internet line to confirm whether an Internet line for Internet call processing exists (step S55). S56).

In this case, when the Internet line does not exist, that is, when the Internet line is all in use or the state is abnormal and cannot be assigned, the outgoing process may be performed by the external internet access device 40 using the outgoing line as in the conventional Internet call processing. do.

That is, when the Internet matching unit 31 reports that the Internet line for the Internet call processing does not exist to the route control unit 36 through the subscriber call processing unit 32, the route control unit 36 receives the translated call. The route sequence assigned to the network is searched (step S57), and the route to be actually broadcasted, that is, the outgoing route to the external Internet connection device 40, is found and notified to the relay line controller 33 through the relay call processor 34. (Step S58), the relay line control unit 33 occupies the relay line currently in use among the relay lines included in the notified outgoing route (step S59), and connects the Internet call to the external Internet connection device 40. (Step S60).

Then, the external Internet connection device 40 performs a series of functions for general TCP / IP processing such as IP address allocation and routing, and accordingly, the relay call processing unit 34 of the switching system 30 corresponds to The internet call is processed during a call (step S61).

Subsequently, when the subscriber releases the connection to terminate the Internet call, the corresponding connection release signal is input to the relay call processing unit 34 of the switching system 30, whereby the relay call processing unit 34 is a relay line control unit. After controlling 33 to release the occupied relay line (step S62), the Internet call is terminated.

On the other hand, if there is an internet line in step S56, the corresponding internet matching unit 31 occupies the internet line and connects an internet call for internet traffic processing (step S63), whereby the subscriber call processor 32 The internet call is handled in a busy state (step S64).

Thereafter, when the subscriber releases the Internet connection in order to terminate the Internet call, the corresponding connection release signal is input to the subscriber call processing unit 32 of the switching system 30, and accordingly, the subscriber call processing unit 32 is connected to the Internet. The matching unit 31 is controlled to release the occupied Internet line (step S65), and then the internet call is terminated.

At this time, the subscriber call processing unit 32 releases the occupied Internet line, checks whether the currently processed Internet call is an Internet call requesting the Internet PPP service (step S66), and if it is an Internet call requesting the Internet PPP service. In step S67, the allocated IP address is returned (step S67).

On the other hand, when it is determined in step S54 that the called party is the called party requesting the Internet PPP service, the subscriber call processing unit 32 requests the IP address control unit 38 to allocate an IP address for processing the Internet PPP service ( Step S68).

Accordingly, the IP address control unit 38 searches for the IP address database 39 and allocates the requested IP address. First, the service provider information table 39-1 is searched for incoming calls to allocate the requested IP address. Check the service provider name associated with the service number, and then, in accordance with the IP address table pointer corresponding to the verified service provider name, the IP address of the IP address table 39-2 associated with the connection list, that is, the IP address assigned to the service provider name. By searching (step S69), it is checked whether there are currently unused IP addresses among the corresponding IP addresses.

At this time, if there is currently an unused IP address, the corresponding IP address controller 38 assigns the IP address identified as currently unused to the subscriber call processing unit 32 (step S70), and the subscriber call processing unit 32. It is used for the assigned IP address and recorded in the corresponding IP address table 39-2.

However, when the IP address control unit 38 searches the IP address database 39 to allocate the requested IP address, and if there is no registered business name or an unused IP address does not exist for the Internet PPP service, Since the internet call cannot be processed, the internet call is terminated.

On the other hand, the subscriber call processing unit 32 is assigned an IP address from the corresponding IP address control unit 38 is to occupy a predetermined Internet line to access the Internet through the Internet matching unit 31 to provide the Internet PPP service ( In step S55), the operation is repeated from step S56 for checking whether there is an internet line for processing the corresponding internet call.

Subsequently, when the Internet call is terminated by the subscriber while providing the corresponding Internet PPP service by occupying a predetermined Internet line for providing the Internet PPP service, the Internet matching unit 31 is controlled to release the occupied Internet line. Since the currently processed Internet call was an Internet call requesting the Internet PPP service, the IP address is requested to be released to return the IP address allocated from the IP address control unit 38 to the IP address database 39. .

Then, the IP address controller 38 changes the IP address requested for release to an unused IP address table 39-2, releases the IP address, and terminates the Internet call.

As described above, the present invention performs the Internet line occupancy and release function for the Internet access in the switching system, and in particular, implements and manages a predetermined IP address database for the Internet PPP service, thereby requesting the Internet PPP service. It is possible to allocate and release an IP address for Internet call processing.

In addition, the embodiments according to the present invention are not limited to the above-described embodiments, and various alternatives, modifications, and changes can be made within the scope apparent to those skilled in the art.

As described above, the present invention registers and manages IP addresses for each service provider for the Internet PPP service in a database, and registers and manages them in the switching system, and allocates and releases corresponding IP addresses when an Internet call requesting the Internet PPP service is received. In addition, it is possible to perform Internet call processing for the Internet PPP service in the corresponding exchange system, thereby providing a variety of Internet services directly to subscribers.

Claims (6)

In a switching system that connects an external internet matching device to perform internet call processing, An IP address database storing an IP address for each service provider for Internet call processing requiring an Internet PPP service; An IP address manager for processing, registering, canceling, changing, and outputting operator-specific IP address of the IP address database by processing an operator-specific IP address input command from an operator terminal; An IP address controller configured to search the IP address database and to allocate and release an IP address for Internet call processing requiring an Internet PPP service; A switching system comprising an internet matching unit which receives an IP address from the IP address control unit and occupies an internet line for internet access, releases the internet line occupancy and returns an assigned IP address at the end of an internet call; Internet call processing device for internet Phi Phi service. The method of claim 1, The IP address database includes a service provider information table for storing service provider information corresponding to the called party; And an IP address table connected to the service provider information table with a connection risk, the IP address table storing IP addresses and internal information. Checking whether the collected called party number is a called party requesting an Internet PPP service; Assigning a corresponding IP address through a search of an IP address database when the called party requests the Internet PPP service; Requesting possession of an Internet line for the Internet PPP service by accessing the Internet; Connecting an internet call by occupying the internet line; And releasing the internet line occupancy, releasing the IP address, and terminating an internet call when the internet connection is released. delete The method of claim 3, The allocating of the IP address may include: searching a service provider information table of the IP address database to identify a service provider name associated with a called party number; Allocating an unused IP address among IP addresses in the IP address table corresponding to the confirmed operator name; And recording the assigned IP address in the IP address table as being in use. The method of claim 3, The step of terminating the Internet call may include: releasing the Internet line occupation when the Internet connection is released; Checking whether the currently processed Internet call was an Internet call requesting an Internet PPP service; Requesting the release of the assigned IP address when the Internet call requested the Internet PPP service; And changing the released IP address to an unused IP address and returning the IP address to the IP address database.