KR20030067240A - Internet Phone Service System and method in an apartment complex - Google Patents

Abstract

PURPOSE: An Internet phone service system in a housing complex and a method therefor are provided to make calls between households at the complex by assigning private IP addresses to the complex, and to dynamically assign external IP addresses for external calls of the complex, thereby using both internal and external complex calls by using one general phone. CONSTITUTION: Internet phone suppliers(211,212) are assigned with private phone numbers and private IP addresses. An LAN(210) is connected to the Internet phone suppliers(211,212). A private gatekeeper(213) is connected to the LAN(210). A DHCP(Dynamic Host Configuration Protocol) server(214) dynamically assigns external IP addresses to the Internet phone suppliers(211,212). A router(215) connects the LAN(210) with an external Internet(220). The private gatekeeper(213) stores private phone number and private IP address information given to the Internet phone suppliers(211,212) connected to the LAN(210). The external Internet(220) is connected to a main gatekeeper(230) for an Internet phone service, an LAN(240) connected to an Internet phone supplier(241), and a VoIP gateway(250).

Description

Internet phone service system and method in an apartment complex

The present invention relates to a system and method for Internet telephony service in a multi-family house, and more particularly, to assign a private IP address in a multi-family housing complex to make intergenerational calls within the complex, and to make a call outside. The present invention relates to an Internet telephone service system and method in a multi-family house for allocating an external IP address.

Currently, the Internet is used as an essential communication medium for modern people, and information and confirmation of information through the Internet have already been generalized, and recently, interest in Internet telephony is increasing.

These Internet phones are being developed into PC to PC, PC to Phone, and Phone to Phone.

Among them, the PC to PC method is a method of compressing (G.723, G.729 CODEC) voice through a microphone and a speaker of a called party's PC and then using H.323 and other protocols.

In addition, the PC to Phone method is a method of calling a general telephone using a PC, which is connected to the Internet-PSTN telephone network. At this time, the Internet and the PSTN telephone network are connected through the VoIP gateway.

In addition, the Phone to Phone method is a method of calling from a regular phone to a regular phone. In order to use a phone-to-phone Internet call, the calling party's phone must be connected to a gateway terminal, which is assigned an IP address.

Assigning one static IP address to one gateway terminal is a waste of IP addresses because it occupies one IP address even when you are not making a call.In the current communication environment with 32-bit IPv4 address system, it is already IP address resources may be exhausted.

Therefore, a method of dynamically allocating an IP address rather than allocating one fixed IP address to all terminals has been proposed and used.

1 is a block diagram illustrating a voice service network that provides Internet telephony service to a terminal to which a general dynamic IP is assigned.

The voice service network is connected to a plurality of LAN (Local Area Network) networks 110 for allocating dynamic IPs to respective terminals, the Internet 130 connecting the LAN networks 110, and the Internet 130. Gatekeeper 131 for providing Internet telephony service, and a VoIP gateway for supporting voice communication between a terminal connected to a LAN network and a public switched telephone network (PSTN) subscriber through the Internet 130 ( 140, a public switched telephone network (PSTN) 150 connected to the Internet 130 via the VoIP gateway 140, and a public telephone 160 of the subscriber of the public switched telephone network (PSTN) 150.

Each LAN network 110 includes a plurality of data communication terminals 111, a hub 112 that focuses a plurality of data communication terminals 111, a plurality of hubs 112 or a wireless access point (not shown). (D) or a data communication terminal (not shown) is directly connected, the router 113 for connecting the LAN network 110 with the external Internet 130, and DHCP (dynamic) for assigning a dynamic IP to each data communication terminal 111 host configuration protocol) server 114, and a VoIP server 115 that performs a protocol for voice communication.

In addition, the router 113 is connected to the ordinary telephone 117 through the gateway terminal 116, so that the Internet telephone can be made using the ordinary telephone 117.

Here, the data communication terminal is a terminal in which a chip or device which can be connected to the Internet is embedded, and there are a computer, a PCS phone, a cellular phone, a notebook PC, a PDA, and the like.

Referring to the method of Internet phone service in the voice service network configured as described above are as follows.

First, the PC to Phone method will be described. When the power of any data communication terminal 111 is initially turned on, the DHCP server 114 checks whether there is a dynamic IP address that can be given to the data communication terminal 111. Then assigns a dynamic IP address.

When the user inputs the called party's telephone number using the data communication terminal 111, the data communication terminal 111 generates an outgoing call including the called party's telephone number and the dynamic IP address assigned thereto.

The router 113 accesses the gatekeeper 131 based on the called party's telephone number included in the outgoing call and inquires about the IP address of the VoIP gateway or the H.323 terminal to which it is connected.

In addition, the router 113 transmits an outgoing call to the corresponding VoIP gateway 140 through the Internet 130, and the outgoing call is delivered to the called party's phone 160 connected to the PSTN 150.

When a call with the called party's telephone 160 is connected and a call path is allocated through the VoIP server 115, a call through the VoIP gateway 140 is possible between the corresponding data communication terminal 111 and the general PSTN subscribed telephone 160. .

Next, when describing the Phone to Phone method, when the headset of the regular phone 117 is hooked off, the DHCP server 114 checks whether there is a dynamic IP address that can be given to the gateway terminal 116. Then assigns a dynamic IP address.

When the user inputs the called party's telephone number using the ordinary telephone 117, the gateway terminal 116 generates an outgoing call including the called party's telephone number entered by the user and a dynamic IP address assigned from the DHCP server 114. do.

The outgoing call is forwarded to the router 113. The router 113 accesses the gatekeeper 131 based on the called party's telephone number included in the outgoing call, and the IP address of the destination VoIP gateway or the H.323 terminal. Look up.

Thereafter, the router 113 transmits this outgoing call to the corresponding VoIP gateway 140 through the Internet 130, and the outgoing call is delivered to the called party's phone 160 connected to the PSTN 150.

When a call to the called party's telephone 160 is connected and a call path is allocated through the VoIP server 115, a phone-to-phone Internet telephone service using the corresponding general telephone 117 becomes possible. Such Internet telephony service can be set up separately for each household's needs in a common house or a single family home.

Meanwhile, in the case of a multi-family house, an interphone device for voice calls between households and guard rooms in the complex is installed. To this end, in the case of a multi-family house, since each internet phone service network for external communication and intercom devices for inter-generational communication are installed as separate communication lines, each type of telephone must be provided with each type. There is a problem.

In addition, since each household has the inconvenience of having to go through the guard room in order to make a call with any other household in the same complex using the intercom device, intergenerational calls in the same apartment house are mainly used by the general telephone rather than the interphone. From the standpoint of communication cost is also a problem.

In order to solve the above problems of the prior art, the present invention, the Internet phone service network and the interphone communication network for inter-generational communication in the apartment complex is integrally implemented, and an indoor gateway terminal is installed in each generation of the apartment house to provide one general The present invention provides a system and method for internet telephony service in a multi-family house that can be used as an internet telephone and an interphone telephone using a telephone.

In addition, the present invention assigns a private IP address to each household to make a call using the private IP address in intergenerational calls in the apartment complex, and dynamically allocates an external IP address in a call to the outside of the apartment complex. An object of the present invention is to provide an internet telephony service system and method for making a call using an external IP address.

1 is a block diagram showing a general Internet telephone service network,

2 is a block diagram showing an Internet telephone service network in a multi-family house according to the present invention;

3 is a flowchart illustrating an internet telephony service method in a multi-family house according to the present invention.

<Explanation of symbols for the main parts of the drawings>

210, 240: LAN network

211, 212, 241: means of providing Internet calls

213: Private Gatekeeper

214: DHCP server

215, 242: router

220: the Internet

230: main gatekeeper

250: VoIP gateway

260: public telephone network (PSTN)

270: subscriber phone

In accordance with the present invention for achieving the above object, in a multi-family multi-unit house, each household is given an Internet phone number and a private IP address for each household to provide a telephone call and an internet telephone service to the outside of the complex. Service system,

A local area network (LAN) connecting the plurality of generations;

It is connected to the local area network and matches and stores the private telephone number and the private IP address of each household. If the called party's telephone number inputted from an arbitrary generation of the calling party's household is a private telephone number, it matches the called party's telephone number. A private gatekeeper that provides private IP address information to the calling party generation, and notifies the calling party generation that the called party number is an external phone number if the called party number is an external phone number;

A dynamic host configuration protocol (DHCP) server that is connected to the local area network and dynamically allocates an external IP address to a household that requests only an external Internet telephony service;

Connects a general telephone set for each household to the local area network, delivers the called party's telephone number inputted from the normal telephone to the private gatekeeper, and a private IP address corresponding to the called party's telephone number from the private gatekeeper. When inputted, private call is made in the complex using private IP address assigned to the household and the called party's private IP address, and when the called party's phone number is transmitted from the private gatekeeper to the external phone number, the external IP address is transmitted to the DHCP server. An indoor gateway terminal for making a call to the outside using only the assigned external IP address and the called party's external telephone number;

It characterized in that it comprises a router for connecting the local area network and the external Internet.

In addition, the Internet telephone service method in a multi-family house according to the present invention,

A first step of, when the called party's telephone number is inputted from the general telephone, the premises gateway terminal delivering the called party's telephone number to a private gatekeeper;

A second step of checking, by the private gatekeeper, whether there is a private telephone number and a private IP address that matches the called party's telephone number;

A third step in which the private gatekeeper notifies the in-house gateway terminal that the called party's telephone number is an external telephone number if there is no private telephone number and a private IP address matching the called party's telephone number in the second step;

After the third step, the premises gateway terminal requests an external IP address from the DHCP server to be dynamically allocated, converts its IP address from the private IP address to the assigned external IP address, and sends the called party's external telephone. A fourth step of forwarding the outgoing call including the number and the assigned external IP address to the external internet;

A fifth step of connecting, by the indoor gateway terminal, a call path with the called party when a response signal corresponding to the outgoing call is input from the called party through the external Internet after the fourth step;

A sixth step of the home gateway terminal notifying the DHCP server or the private gatekeeper of a call termination situation and converting its own IP address from the external IP address to the private IP address after the fifth step; ;

A seventh step in which the private gatekeeper delivers private IP address information corresponding to the called party's telephone number to the in-house gateway terminal, if there is a private telephone number and a private IP address matching the called party's telephone number in the second step; Steps;

An eighth step of forwarding, by the indoor gateway terminal, the outgoing call including the called party's private IP address and its own private IP address to the called party's indoor gateway terminal after the seventh step;

A ninth step of connecting the call path using the called party's private IP address and its own private IP address when the response signal corresponding to the outgoing call is input from the called party's home gateway terminal after the eighth step; Characterized by including.

Hereinafter, the "Internet telephone service system and method in a common house" according to an embodiment of the present invention will be described in detail.

2 is a block diagram showing an Internet telephone service network in a multi-family house according to the present invention.

The Internet telephone service network includes a LAN network 210 to which a plurality of Internet telephone providing means 211 and 212, a plurality of Internet telephone providing means 211 and 212 are connected, and a private network connected to the LAN network 210. A DHCP server (dynamic host configuration protocol) 214 connected to the gatekeeper 213 and the LAN network 210 for dynamically allocating an external IP address to a plurality of Internet telephone providing means 211 and 212, The router 215 connects the LAN network 210 to the external Internet 220.

The Internet telephone providing means 211, 212 is installed for each household of the apartment house, and is usually assigned a private telephone number and a private IP address given by the east and the lake.

Here, the private telephone number is a kind of intercom number that can be used only in the apartment complex, and for example, 220-102 may be given a private telephone number such as 220-0102, 230-910 and 910 230-0910. That is, this private telephone number may follow a different telephone numbering system as a number for the convenience of the user.

In addition, the private IP address is a private IP address assigned to each Internet telephone providing means 211, 212 connected to the LAN network for inter-generation intercom in the apartment complex. For example, 220-102 is 1.1.1.101, Building 230, 910 may be assigned a private IP address such as 1.1.1.200, or may be assigned according to a different IP address system.

The private gatekeeper 213 stores private telephone numbers and private IP address information assigned to the Internet telephone providing means 211 and 212 connected to the LAN network 210.

When the called party's private telephone number is input to the private gatekeeper 213 from any calling party's Internet telephone providing means, the called party's private IP address is retrieved and provided to the calling party's Internet telephone providing means, thereby providing the calling Internet telephone. A voice call using a private IP address is allowed between the means and the destination Internet telephone providing means.

The DHCP server 214 dynamically assigns an external IP address to any Internet telephone providing means 211, 212.

The external internet 220 is connected to the main gatekeeper 230 for the Internet telephony service, the LAN network 240 to which the Internet telephony providing means 241 is connected, and the VoIP gateway 250.

The VoIP gateway 250 connects the Internet 220 with a public telephone network (PSTN) 260. The VoIP gateway 250 connects to the public telephone subscriber 270 through the VoIP gateway 250 and the public telephone network (PSTN) 260. Becomes possible.

The Internet telephone providing means 211, 212, 241 includes ordinary telephones 211a, 212a, 241a, and in-house gateway terminals 211b, 212b, 241b connected to the ordinary telephones 211a, 212a, 241a.

In FIG. 2, only the premises gateway terminal and the general telephone are connected to the LAN network, but the data communication terminal (computer, PCS phone, cellular phone, notebook PC, PDA, etc.) may be connected through the premises gateway terminal. The indoor gateway terminal may be installed in the terminal box for each generation.

The Internet phone service method using the internet phone service network in a multi-family house according to the present invention configured as described above will be described with reference to FIG.

The home gateway terminal of each household is set to the private IP address assigned to it, and uses this private IP address for generation-to-generation calls, generation-to-store calls, and generation-to-guardroom calls within the complex.

For outgoing calls from households, stores, or security offices, the premises gateway terminal uses a dynamic external IP address assigned by a dynamic external IP address from a DHCP server.

When the household member of each household hooks off the telephone (S301) and inputs the called party's telephone number (S302), the called party's telephone number input by the user is transferred to the private gatekeeper (S303).

The private gatekeeper identifies whether the called party's telephone number is a private telephone number for a call in the complex or an external telephone number for an internet telephone to the outside (S304).

First, if the called party's phone number is a private phone number, the private gatekeeper delivers an Ethernet network packet including private IP address information corresponding to the called party's private phone number to the calling home gateway terminal (S305), and the calling home gateway terminal. In step S306, the originating call is generated by using the private IP address and the destination private IP address of the called party.

Next, in step S304, if the called party's telephone number is only an external telephone number for outgoing Internet telephony, the private gatekeeper includes an Ethernet network containing this information. The packet is transmitted to the calling gateway terminal in step S307.

Then, the originating home gateway terminal requests an external IP address from a DHCP server to dynamically allocate an external IP address (S308), converts its IP address from a private IP address to a dynamically allocated external IP address, and dynamically allocates the external IP address. By making an outgoing call using the received external IP address and the called party's external telephone number, only an external Internet call is made (S309).

When the call is terminated (S310), the originating home gateway terminal notifies the call termination situation to the DHCP server or the private gatekeeper and converts its IP address back to the private IP address (S311).

The Internet telephone service method in the above-mentioned apartments will be described in more detail as follows.

First, the method of calling in the complex (intergenerational call, household-to-shop currency, household-to-guard room call) is as follows. For convenience of explanation, it will be described taking the call from 220-102 to 230-910.

220-102 user hooks off the general telephone 211a connected to the premises gateway terminal 211b, and presses a display button (* button, # button or any other button indicating that the call is in the complex, or no button is pressed). Do not press), and enter the private telephone number corresponding to 230-910.

The indoor gateway terminal 211b then transmits its private IP address information and the called party's private telephone number to the private gatekeeper 213.

The private gatekeeper 213 retrieves the called party's private IP address corresponding to the called party's private telephone number, and delivers an Ethernet network packet including the called party's private IP address information to the calling party's internal gateway terminal 211b.

The calling party indoor gateway terminal 211b sends outgoing calls including its own private IP address to the called party's private IP address. This outgoing call is received at the in-house gateway terminal 212b of 230-910, which is the called party, and the telephone 212a is called.

When the user of the 230-910 hooks off the telephone 212a, a call path is established between the called party and the calling party, thereby making a call.

Next, look at the process of calling outside from any household within the complex as follows. For convenience of explanation, the case of calling 220-102 from the outside 230-0910 will be described below. This telephone number 230-0910 is a public telecommunication network telephone number, which is different from a private telephone number.

The user of building 220 102 hooks off the normal telephone 211a connected to the indoor gateway terminal 211b, and displays an indication button (* button or # button, or any other button, or a separate button only to indicate that the Internet is an external telephone). Press no button on the phone) and enter the external phone number 230-0910. Of course, the display button indicating that it is only an internet call to the outside may be distinguished from the display button indicating that it is a call only inside.

The indoor gateway terminal 211b then transmits its private IP address information and external called party's phone number to the private gatekeeper 213, and this private gatekeeper 213 is not the internal phone but the external party's telephone number. After determining that it is a telephone, it transmits an Ethernet network packet including this fact information to the calling party gateway terminal 211b. The indoor gateway terminal 211b then dynamically requests the external IP address from the DHCP server 214.

The calling party gateway terminal 211b, which has been assigned a dynamic external IP address, stores the private IP address in a separate place and converts the IP into a dynamically allocated external IP address, and converts the external IP address and the called party's external telephone number information. Send out an outgoing signal. This call is forwarded to the external Internet 220 via the router 215.

The main gatekeeper 230 finds the IP address of the VoIP gateway or the H.323 terminal to which the called party's phone is connected by using the called party's external telephone number, and transmits the outgoing call to the LAN network 240 through the router 242. The subscriber station 270 transmits to the subscriber telephone 270 connected to the public telephone network (PSTN) 260 through the telephone 241a or the VoIP gateway 250 connected to the PSTN 260.

When the telephone call between any household in the destination complex and the outside is finished in this way, the indoor gateway terminal 211b notifies the private gatekeeper 213 or the DHCP server 214 that the call has been terminated and has been allocated for the external call. Return the external IP address and convert it to your own private IP address that you have stored in a separate storage location.

While the present invention has been described above based on the preferred embodiments thereof, these embodiments are intended to illustrate rather than limit the invention. It will be apparent to those skilled in the art that various changes, modifications, or adjustments to the above embodiments can be made without departing from the spirit of the invention. Therefore, the protection scope of the present invention will be limited only by the appended claims, and should be construed as including all such changes, modifications or adjustments.

As described above, according to the system and method for Internet telephony service in a multi-family house of the present invention, it is possible to use both a telephone in the complex and an internet telephone outside the complex by using one ordinary telephone.

In addition, since the call in the complex uses only a private IP address and dynamically allocates and uses an external IP address only when making an external internet call, intercom communication and internet phone can be used at a lower cost.

Claims (2)

In a multi-generational apartment house, an Internet telephone service system for providing a telephone number and a private IP address to each household to provide a telephone call and an internet telephone service to the outside of the household. A local area network (LAN) connecting the plurality of generations; It is connected to the local area network and matches and stores the private telephone number and the private IP address of each household. If the called party's telephone number inputted from an arbitrary generation of the calling party's household is a private telephone number, it matches the called party's telephone number. A private gatekeeper that provides private IP address information to the calling party generation, and notifies the calling party generation that the called party number is an external phone number if the called party number is an external phone number; A dynamic host configuration protocol (DHCP) server that is connected to the local area network and dynamically allocates an external IP address to a household that requests only an external Internet telephony service; Connects a general telephone set for each household to the local area network, delivers the called party's telephone number inputted from the normal telephone to the private gatekeeper, and a private IP address corresponding to the called party's telephone number from the private gatekeeper. When input, private call is made in the complex by using private IP address assigned to the household and the called party's private IP address, and when the called party's phone number is an external phone number from the private gatekeeper, the external IP address is transmitted to the DHCP server. An indoor gateway terminal for making a call to the outside using only the assigned external IP address and the called party's external telephone number; And a router connecting the local area network and the external internet. A local area network connecting a plurality of households assigned a private telephone number and a private IP address, a private gatekeeper connected to the local area network to store and store a private telephone number and private IP address assigned to each household; In an Internet telephony service system in a common house comprising a DHCP server connected to a local area network and dynamically assigning an external IP address to a household requesting an outward Internet telephony service, which is installed in each household and is provided to a general telephone user. An internet phone service method in an in-house gateway terminal that provides a call service and an internet phone service to the outside, A first step of, when the called party's telephone number is inputted from the general telephone, the premises gateway terminal delivering the called party's telephone number to the private gatekeeper; A second step of checking, by the private gatekeeper, whether there is a private telephone number and a private IP address that matches the called party's telephone number; A third step in which the private gatekeeper notifies the in-house gateway terminal that the called party's telephone number is an external telephone number if there is no private telephone number and a private IP address matching the called party's telephone number in the second step; After the third step, the premises gateway terminal requests an external IP address from the DHCP server to be dynamically allocated, converts its IP address from the private IP address to the assigned external IP address, and sends the called party's external telephone. A fourth step of forwarding the outgoing call including the number and the assigned external IP address to the external internet; A fifth step of connecting, by the indoor gateway terminal, a call path with the called party when a response signal corresponding to the outgoing call is input from the called party through the external Internet after the fourth step; A sixth step of the home gateway terminal notifying the DHCP server or the private gatekeeper of a call termination situation and converting its own IP address from the external IP address to the private IP address after the fifth step; ; A seventh step in which the private gatekeeper delivers private IP address information corresponding to the called party's telephone number to the in-house gateway terminal, if there is a private telephone number and a private IP address matching the called party's telephone number in the second step; Steps; An eighth step of forwarding, by the indoor gateway terminal, the outgoing call including the called party's private IP address and its own private IP address to the called party's indoor gateway terminal after the seventh step; A ninth step of connecting the call path using the called party's private IP address and its own private IP address when the response signal corresponding to the outgoing call is input from the called party's home gateway terminal after the eighth step; Internet telephone service method in a public house comprising a.