KR101286725B1 - Internet telephone system displaying international call - Google Patents

Abstract

The present invention relates to a VoIP Internet telephony service system for providing an international telephone display service to which a country identification code is assigned to a telephone number of an outgoing telephone terminal so as to determine whether an incoming call is an international call. It can be implemented without changing the structure of the installed service providing server itself, and once it is determined whether or not it is an international call when registering the Internet connection for the use of the Internet telephony service, it is not necessary to determine whether it is an international call again. The present invention relates to a VoIP Internet telephone service system for providing a telephone display service.
In the VoIP Internet telephone service system for providing an international telephone display service according to the present invention, VoIP VoIP telephone system for providing an Internet telephone service according to the VoIP, Soft switch for performing the routing of the call in response to a call request of the Internet telephone, A service providing server including a database in which a telephone number of a service subscriber is registered; A packet capture unit for capturing a packet input to the soft switch through an internet network, a packet analysis unit for analyzing a packet captured by the packet capture unit, and determining whether the packet is a registration request packet for service use, and the packet The IP extracting unit extracts the IP of the calling telephone terminal from the registration request packet determined by the analyzing unit, and the country identification code corresponding to the IP extracted from the IP extracting unit is assigned to the telephone number registered in the database of the service providing server. Characterized in that it comprises a; outgoing telephone number change module including a country identification code granting.

Description

Internet telephone system displaying international call

The present invention relates to a VoIP Internet telephony service system for providing an international telephone display service to which a country identification code is assigned to a telephone number of an outgoing telephone terminal so as to determine whether an incoming call is an international call. It can be implemented without changing the structure of the installed service providing server itself, and once it is determined whether or not it is an international call when registering the Internet connection for the use of the Internet telephony service, it is not necessary to determine whether it is an international call again. The present invention relates to a VoIP Internet telephone service system for providing a telephone display service.

Recently, with the spread of the Internet, the use of Voice over Internet Protocol (VoIP) Internet telephony based on the Internet network is increasing.

Such an internet telephone enables a conventional wired or wireless telephone call through an internet telephone terminal.

The main advantage of VoIP is that by integrating the telephone service using the existing internet network, telephone users can receive long distance and international telephone service in the Internet environment with only local telephone fee.

However, the Internet phone only allows the registration of the phone terminal by confirming the subscriber ID and password, so the short-range routing provides the service based on the location where the user first registered, not the actual area. If it is not shared and used overseas after registration or abused for voice phishing, it cannot be indicated on the called party's telephone terminal because it is received without suspicion because the called party has no information on the calling party.

Accordingly, Korean Patent No. 1069116, "VoIP Internet Telephone Service System and Method Using IP Band Analysis," and Korean Patent Publication No. 2011-0010198, "Internet Telephony Service Method and System Using SIP-Based Calling Terminal Location Information," and the like. In the prior art, a technology for assigning a country identification code to a telephone number of an outgoing telephone terminal of an incoming call in the case of an international call by analyzing the IP of a call signal input to a service providing server including a soft switch for routing a call of an Internet phone Presenting.

That is, in the prior art, as shown in FIG. 1, by changing the soft switch of the pre-installed service providing server (SIP), an IP analysis function and a country identification code grant function are added, and a call signal is provided by the calling telephone terminal. If it is input through the soft switch (Proxy) of the server 1, the incoming call signal is not immediately routed, but once dropped, the IP is analyzed from the packet of the call signal to determine whether it is an international call, and the country corresponding to the analyzed IP. The identification code is extracted, and the national identification code extracted at the international call is assigned to the calling telephone terminal telephone number of the call signal packet, and then routed to be sent to the called telephone terminal.

However, the operator who installs and operates the service provision server needs not only to add cost to the structure change of the soft switch (i.e., to grant the IP analysis function and the country identification code granting function) but also to interfere with the communication and change the structure. It is not intended to apply the prior art because it may cause a number of problems, such as the stability of the test and the stabilization period is very long.

The conventional technology analyzes IP for every call signal (i.e. call request packet) and assigns an international identification code to the telephone number, which increases the load. As the load increases, routing of the call signal becomes slow and an error occurs. There is a problem such as being.

The present invention has been made to solve the problems of the VoIP Internet telephone service system according to the prior art as described above, so that the country identification code is given to the telephone number of the international telephone without changing the existing soft switch soft switch It is an object of the present invention to provide a VoIP Internet telephony service system that provides an international call indication service that does not incur additional costs, signal interference, and stability tests caused by the modification of the service.

In addition, when the Internet phone terminal accesses and registers the service providing server through the Internet to use the service, it analyzes the IP of the packet only once to determine whether it is an international call, and after setting the corresponding country identification code, It is another object of the present invention to provide a VoIP Internet telephony service system that provides an international telephone display service that does not have a problem such as weighting, processing speed, and errors due to no signal analysis, judgment, and setting. .

VoIP Internet telephone service system for providing an international call display service according to the present invention for achieving the above object is

In the VoIP Internet telephone service system for providing an Internet telephone service according to VoIP,

A soft switch that performs routing of calls according to call requests of Internet telephones;

A service providing server including a database in which a telephone number of a service subscriber is registered;

A packet capture unit for capturing a packet input to the soft switch through an internet network;

A packet analysis unit analyzing the packet captured by the packet capture unit to determine whether the packet is a registration request packet for service use;

An IP extracting unit for extracting an IP of an outgoing telephone terminal from the registration request packet determined by the packet analyzing unit;

And an outgoing telephone number change module including a country identification code granting unit for assigning and registering a country identification code corresponding to the IP extracted from the IP extraction unit to a phone number registered in the database of the service providing server. It is done.

The packet analyzer determines whether the packet is a call request packet input from an external soft switch,

The IP extractor extracts the IP of the calling telephone terminal from the call request packet of the external soft switch determined by the packet analyzer,

The station identification code granting unit is characterized in that the country identification code corresponding to the IP extracted by the IP extracting unit is assigned to the telephone number of the calling telephone terminal of the call request packet of the external soft switch routed by the soft switch.

VoIP Internet telephone service system for providing an international call display service according to the present invention having such a configuration does not change the existing service providing server (especially, soft switch), there is little additional burden of cost, There is no problem of signal interference, and the stabilization period and test period for the implementation of the international call display function are significantly reduced.

And if the subscriber only provides packet analysis, IP extraction, and national identification code at the time of registration to use the service, there is almost no weighting load because IP extraction and subsequent national identification code are not required for subsequent calls. Problems such as slowing down or adversely affecting the call routing are rarely generated.

1 is a view showing a process of displaying an international call in the prior art.
2 is a block diagram of a VoIP Internet telephone service system for providing an international call indication service according to the present invention.
3 is a view showing a process of displaying an international call in the present invention.

Hereinafter, a VoIP Internet telephony service system for providing an international call display service according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in Fig. 2, the service providing server and the outgoing telephone number change module according to the present invention comprise a large component.

The service providing server 10 includes a soft switch 11 and a database 13.

The soft switch 11 is a device that performs the routing of the call according to the call request of the Internet phone,

The database 13 stores information (telephone terminal ID, telephone number, etc.) of subscribers and Internet telephone terminals subscribed to use the Internet telephone service.

The service providing server 10 is largely divided into SIP (mainly used by an institution operator) and H.323 (mainly used by a separate operator), SIP uses a server called Proxy, and an H.323 server is called a Gatekeeper. Using a server, the Gatekeeper registers a telephone terminal in the Internet network using a protocol called H.225 RAS, and the Proxy registers a telephone terminal in the Internet network using a protocol called SIP register.

In the system of the present invention, the service providing server 10 may be used as it is without changing the structure of the service providing server, which is already installed and used. The above detailed description is omitted.

The outgoing telephone number change module 20 includes a packet capture unit 21, a packet analyzer 23, an IP extractor 25, a country identification code adder 27, and a communication unit 29.

The packet capture unit 21 captures a packet input to the soft switch 11 through the Internet network and transmits the packet to the packet analyzer 23.

In the present invention, the capture of a packet enables not only to capture a packet transmitted by a routing method in a switch (L) installed in a transmission cable through which the packet is transmitted, but also to capture a packet transmitted by a switch port mirroring method.

In general port mirroring is a load on the switch (L), but the capture method used in the present invention is handled without load, general port mirroring has a number of service providing server (10) exists because there is a limit of ports that can be mirrored per switch When the packet cannot be captured, the capture method used in the present invention does not affect the number of service providing servers.

The packet analyzer 23 analyzes the packet captured by the packet capture unit 21 to determine whether the packet is a registration request packet for service use.

The packet analyzer 23 extracts and analyzes only the H.225 RAS message (or SIP register message) from the captured packet, and determines whether the packet is a registration request packet for using the Internet telephony service.

In order to use the Internet phone, the service subscriber must first access the registered service providing server 10 through the Internet network and register. The information for requesting such registration is H.225 RAS message (or SIP register message) in the packet. Included in

If it is determined as a registration request packet, the transmitted packet is transmitted to the IP extraction unit 25, and if it is determined that the registration request packet is not, no further work is performed.

For reference, the registration request packet means that the originating telephone terminal of the packet is a service subscriber of the present system.

The IP extractor 25 extracts the IP of the outgoing telephone terminal from the transmitted packet determined as a registration request packet by the packet analyzer 15, and assigns the extracted IP to the country identification code attaching unit 27. To send.

The country identification code granting unit 27 allows a country identification code corresponding to the transmitted IP to be assigned to a phone number registered in the database 13 of the service providing server 10.

The country identification code granting unit 27 brings a country identification code corresponding to the IP received from the DB 30 registered with the country identification code information provided by the Korea Communications Commission through the communication unit 29, The database 13 is accessed and the national identification code obtained from the DB 30 is assigned to the telephone number of the corresponding calling terminal phone and registered. In this case, the country identification code granting unit 27 may directly register and register the country identification code in the database 13 as described above, but the service providing server 10 requests data of the extracted IP and the country identification code. In the case where the service providing server 10 has its own registered country identification code, the service identification server 10 may read the corresponding country identification code and directly register and register the country identification code in the database 13.

A subscriber registers through an internet network in one country, uses an Internet telephone, disconnects the Internet network (ie, unregisters it), and then registers to access the internet network in the same country and registers in another country. There may be a case where a user accesses and registers a network. However, when re-connecting and registering in the same country, there is no change of IP (that is, a change of a country identification code). Also, when accessing and registering from another country, the existing country identification code will be removed and a new country identification code will be assigned and registered.In this case, when the country of access registration is domestic, the country identification code is not necessary. When registering in Korea after using overseas registration, remove the overseas country identification code. Return to the telephone number.

When the subscriber of the present system accesses the Internet network for service use and requests registration (that is, transmits a registration request packet), the registration request packet is transmitted to the service providing server 10 as it is to register the telephone terminal of the subscriber to use. The outgoing telephone number change module 20 captures the registration request packet transmitted to the service providing server 10 and registers the national identification code to the telephone number of the database 13 to register it.

When the subscriber requests a call for Internet telephony after being registered, the call request packet is immediately inputted into the soft switch 11 of the service providing server 10 and immediately routed to the receiver for transmission. Unlike the providing server 10, there is nothing hindering the routing. In this case, the call request packet is captured by the outgoing call number change module 20, but is not determined as a registration request packet by the packet analysis unit 23, so the captured call request packet is destroyed and no operation is performed. The change module 20 does not have any effect on the service providing server 10.

In the above, the case where the service subscriber of the system uses the Internet phone as a caller has been described. Hereinafter, the case where the caller is not a subscriber of the service and the receiver is a subscriber of the service will be described.

When the originator is not a subscriber of this system, there is no registration request packet, only a call request packet. The call request packet is transmitted from the external softswitch to which the caller subscribed.

Thus, the packet analyzer 23 analyzes the captured packet to determine whether the packet is a packet transmitted from an external soft location or a call request packet. When the result of the determination is that the packet is input from the telephone terminal of the subscriber of the system or is transmitted from an internal soft switch operated by the same operator, the operation is performed as described above. Capture and transmit the received packet to the IP extraction unit 25,

The IP extraction unit 25 extracts the IP of the outgoing telephone terminal from the transmitted packet and transmits it to the country identification code granting unit 27,

The country identification code granting unit 27 obtains the corresponding country identification code from the DB 30 through the communication unit 29 with the received IP so that the soft switch 11 is assigned to the caller's telephone number routed to the receiver side. do.

In this case, the switch L of the transmission cable to which the packet is transmitted is dropped (pended) for a while until the packet analyzer 23 determines whether the packet is transmitted from an external soft switch, and then is determined to be an internal soft switch. Release the drop so that the packet is transmitted to the service providing server 10, and if it is determined to be an external soft switch, the drop is maintained, and the country identification code granting unit 27 drops the country identification code taken from the DB 30. If you give the phone number of the packet to be released to drop the packet to be sent to the service providing server 10, on the other hand, the switch (L) transmits the packet to the service providing server 10 without dropping If the soft switch 11 temporarily suspends the routing of the packet and a signal is transmitted that the packet analyzer 23 is not transmitted from the external soft switch, the routing is performed immediately. Or geotyieoseo transmitted from the external soft switch may be the country identification code section if (27) the request to be granted a country identification code immediately after the routing to give the country identification code to the calling telephone terminal phone number.

In the above description of the present invention, a digital capture device having a specific shape and structure has been described with reference to the accompanying drawings. However, the present invention can be variously modified and changed by those skilled in the art, and the modifications and changes are protected by the present invention. Should be interpreted as being within the scope.

10: service providing server
11: softswitch 13: database
20: outgoing call number change module
21: packet capture unit 23: packet analysis unit
25: IP extraction unit 27: national identification code grant

Claims (2)

In the VoIP Internet telephone service system for providing an Internet telephone service according to VoIP,

A soft switch that performs routing of calls according to call requests of Internet telephones;
A service providing server including a database in which a telephone number of a service subscriber is registered;

A packet capture unit for capturing a packet input to the soft switch through an internet network;
A packet analysis unit analyzing the packet captured by the packet capture unit to determine whether the packet is a registration request packet for service use;
An IP extracting unit for extracting an IP of an outgoing telephone terminal from the registration request packet determined by the packet analyzing unit;
An outgoing telephone number change module including a country identification code granting unit for assigning a country identification code corresponding to an IP extracted from the IP extracting unit to a phone number registered in a database of the service providing server; In the VoIP Internet telephone service system providing a display service,

When the subscriber of the service registers through internet connection in one country and uses internet phone and then disconnects from the internet network (ie, deregistration) and then reconnects and registers in the same country, the country identification code granting is performed. If you access and register in another country without re-enrolling and registering the code, remove the existing country registration code and assign a new country identification code in place and register the access country. When it is characterized in that to remove the foreign country identification code that has been previously granted from abroad,

If a call request packet is inputted as a call request for an Internet phone call of a subscriber after being registered for the use of an Internet phone service, the packet analyzer extinguishes the captured call request packet and is not affected by the outgoing telephone number change module. The service providing server does not immediately route the call request packet input to the soft switch to the receiver side,

The packet analyzer determines whether the packet is a call request packet input from an external soft switch,
The IP extractor extracts the IP of the calling telephone terminal from the call request packet of the external soft switch determined by the packet analyzer,
The country identification code granting unit is to be assigned to the telephone number of the calling telephone terminal of the call request packet of the external soft switch routed from the soft switch, the country identification code corresponding to the IP extracted from the IP extractor,
Until the packet analysis unit determines whether the packet is a call request packet input from an external soft switch, the switch of the transmission cable through which the packet is transmitted drops the incoming packet. Release the drop so that the packet is transmitted to the service providing server, and if it is determined as an external soft switch, the switch of the transmission cable maintains the drop so that the country identification code is provided by the Korea Communications Commission. VoIP Internet telephone service providing international call indication service, characterized in that if the national identification code is obtained from the registered DB and assigned to the telephone number of the dropped packet, the drop is released and the packet is transmitted to the service providing server. system.
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