KR20000038380A - Method for connecting at gateway and transferring voice data - Google Patents

Abstract

PURPOSE: A method for connecting at a gateway and transferring a voice data is provided to consume less resource between gateways and rapidly connect voice communication. CONSTITUTION: A gateway of a transmitting side receives a connecting request from an user and performs a setting work to allocate computer resources(201). The gateway transmits a connecting request message(202). The gateway of a transmitting side receives a response message in response to the connecting request message(203). The gateway decides whether a received response message is a connecting rejection message or a connecting confirmation message(204).

Description

Connection and voice data transmission method at gateway

The present invention relates to a method for connecting to a gateway and transmitting voice data and a computer readable recording medium having recorded thereon a program for realizing the same.

Currently, various methods are used to transmit voice data and connection between Internet phone gateways. The first is a method based on the International Telecommunication Union (ITU) standard, and the method of communication by accepting Q.931 and H.245 of H.323, which is most commonly used in Internet phone standards, and the second method of communication according to each gateway. A method of defining and transmitting access and voice data using the same.

Each method has its own advantages and disadvantages. The first method enables communication based on standards with heterogeneous gateways, while a lot of computational resources are required to accommodate the standards, which leads to an increase in the price of gateway equipment. At least three steps in Q.931 and at least nine steps in H.245 are used, which increases the connection time. The second method has the disadvantage that only communication between the same type of gateway is possible, but it can reduce the computational resources required for the Internet phone gateway and reduce the price of equipment.

Therefore, there is a need for a method that can consider the interoperability with other gateways to easily accommodate the standards, simplify communication between gateways, use less computational resources, and perform faster access and efficient voice data transmission.

Accordingly, the present invention has been made to meet the above requirements, and consumes a small amount of computational resources between gateways, and can be read by a computer recording a connection and voice data transmission method for providing fast voice communication and a program for realizing the same. The purpose is to provide a recording medium.

1 is an exemplary configuration diagram of an internet phone gateway to which the present invention is applied.

2A to 2D are flow charts of an embodiment of a method of connection and voice data transmission in an Internet phone gateway according to the present invention.

* Explanation of symbols for the main parts of the drawings

101: telephone network interface module 102: voice compression / restoration processing module

103: main control module 104: storage device

105: input and output device 106: Internet interface module

According to the present invention for achieving the above object, in a connection and voice data transmission method applied to a gateway, a transmitting gateway receives a connection request from a user and transmits a connection request message to a receiving gateway, wherein the receiving gateway A first step of attempting to connect by checking a free port, a system state, and a phone number, and confirming whether the other party receives a call and transmitting a connection confirmation message to the sending gateway; A second step of the transmitting gateway transmitting a connection progress message to the receiving gateway, the receiving gateway receiving a connection progress message to set a communication environment, and sending an alert message to the transmitting gateway; The sending gateway receives an alert message and transmits a voice data message, the receiving gateway receives a voice data message, checks whether a call termination message is received from the user, activates a timer, and sends and receives a voice data message. A third step of doing; And a fourth step in which the transmitting gateway receives the voice data message from the receiving gateway, checks whether the telephone use end message is received from the user, starts a timer, and transmits and receives the voice data message.

In addition, the present invention transmits a connection request message to the receiving gateway, the sending gateway receives a connection request from the user to the gateway with a processor, the receiving gateway checks the free port, system status and telephone number A first function of attempting a telephone connection, confirming that the other party is receiving a call, and sending a connection confirmation message to the sending gateway; A second function of the transmitting gateway transmitting a connection progress message to the receiving gateway, the receiving gateway receiving a connection progress message to set a communication environment, and sending an alert message to the transmitting gateway; The sending gateway receives an alert message and transmits a voice data message, the receiving gateway receives a voice data message, checks whether a call termination message is received from the user, activates a timer, and sends and receives a voice data message. A third function of doing; And a program for activating a timer by checking whether the sending gateway receives a voice data message from the receiving gateway, receiving a telephone use end message from the user, and realizing a fourth function of transmitting and receiving voice data messages. Provide a computer readable recording medium.

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

1 is an exemplary configuration diagram of an internet phone gateway to which the present invention is applied, and includes a telephone network interface module 101, a voice compression / restoration processing module 102, a main control module 103, a storage device 104, and an input / output device ( 105 and an internet interface module 106.

As shown in the figure, the main control module 103 is responsible for all the control of the Internet phone gateway, the storage device 104 stores the information used by the main control module 103, billing information and usage history and Store information generated during operation together.

The input / output device 105 is a device for interfacing with an operator, the Internet interface module 106 is connected to the Internet as an Ethernet, and the voice compression / restoration processing module 102 is a voice processing processor, a memory and a main control module 103. ), The telephone network interface module 101 performs the interface between the public switched telephone network (PSTN) and the T1 trunk connection and the main control module (103).

The Internet phone gateway connects to the other party's Internet phone gateway through the Internet according to a connection request from a user connected through the telephone network, transmits and receives voice data, and releases and terminates the connection according to the connection release request.

2A to 2D are flowcharts illustrating one embodiment of a connection and voice data transmission method in an Internet phone gateway according to the present invention, and FIGS. 2A and 2B are flowcharts of a connection and voice data transmission method of a transmitting gateway.

As shown in the figure, the sending gateway receives a connection request from a user and performs a setting operation of allocating computational resources (201), sends a connection request message (202), and the sending gateway sends a message for the connection request message. A response message is received as a response (203), and it is determined whether the received response message is a connection rejection message or a connection confirmation message (204). If the connection rejection message is transmitted, a release request message is transmitted to the receiving gateway (205). Receive a release request message from the gateway side (206), send a termination confirmation message (207), receives the termination confirmation message (208), and performs the connection release and initialization (209).

On the other hand, it is determined whether the response message received by the sending gateway is a connection rejection message or a connection confirmation message (204), if the connection confirmation message is transmitted (210), and receives an alert message from the receiving gateway (210); 211), transmits the voice data message to the receiving gateway (212), receives the voice data message (213), determines whether a release request has been received from the user (214), and uses the telephone from the user if the release request is not received; If it is determined that the termination message has been received (215), if the telephone use termination message is not received, the timer is activated (216), the voice data message transmission process is repeated, and if the telephone use termination message is received, the receiving side receives the release request message. Send to the gateway (205), and send a release request message from the receiving gateway. Receive (206), send an end acknowledgment message (207), receive an end acknowledgment message (208), and perform connection release and initialization (209).

On the other hand, it is determined whether a release request is received from the user (214), if the release request is received, the release request message is transmitted to the receiving gateway (217), the termination confirmation message is received (218), and the termination confirmation message to the receiving side gateway. It transmits (219), disconnects and initializes (209).

2C and 2D are flowcharts illustrating a connection and voice data transmission method of a receiving gateway.

As shown in the figure, the receiving gateway receives a connection request message from the sending gateway (301), determines whether there is a free gateway side of the receiving gateway (302), and if there is a free port, a call burst on the connection rejection message. (303), it is determined whether a system check is necessary if there is no free port (304). If a system check is required, the system check is set in a connection rejection message (305). If the phone number is not confirmed (306), the telephone number is set in the access rejection message (307). If the phone number is confirmed, the telephone number is attempted (308), and it is determined whether the other party receives the call (309). If the call is not received, the other party's non-answer is set in the connection rejection message (310).

Subsequently, the receiving gateway transmits the connection rejection message to the transmitting gateway (311), receives the release request message from the transmitting gateway (312), transmits the release request message to the transmitting gateway (313), and the transmitting side A termination confirmation message is received from the gateway (314), and a connection release and initialization is performed (315).

On the other hand, when the receiving gateway determines whether the other party is receiving a call (309) and receives the call, it transmits a connection confirmation message to the transmitting gateway (316), receives a connection progress message from the transmitting gateway (317), and communication The environment is set (318) and an alert message is sent to the sending gateway (319).

Thereafter, the receiving gateway transmits the voice data message to the transmitting gateway (320), receives the voice data message from the transmitting gateway (321), determines whether it has received a release request from the user (322), and receives the release request. If not, it is determined whether a telephone use termination message is received from the user (323). If the telephone use termination message is not received, the timer is operated (324), the voice data message transmission process is repeated, and the telephone use termination message is received. If so, the release request message is transmitted to the sending gateway (325), the release request message is received from the sending gateway (326), the termination acknowledgment message is transmitted to the sending gateway (327), and the termination acknowledgment message from the sending gateway. Receive (328), and perform the connection release and initialization (332).

On the other hand, if the receiving gateway determines whether it has received a release request from the user (322) and receives the release request, and transmits the release request message to the sending gateway (329), receives a termination confirmation message (330), the termination confirmation message In step 331, the UE transmits the message to the transmitting gateway (331) and performs connection release and initialization (332).

On the other hand, as shown in Table 1 below, the message transmitted from the sending gateway to the receiving gateway includes a connection request message, a connection progress message, a voice data message, a release request message, and an end acknowledgment message.

In addition, as shown in Table 2 below, the message transmitted by the receiving gateway to the transmitting gateway includes a connection confirmation message, a connection rejection message, an alarm message, a voice data message, a release request message, and an end confirmation message. . The delimiter field of each message is 2 bytes, the packet number field is 2 bytes, and the size of the data field varies depending on the value defined in the size field. Table 3 below shows the division according to the reason for rejection of the connection rejection message shown in Table 2.

Message Name Separator field Packet Number Field Size field Data field name Connection request message 340 #number Size of data field Recipient's phone number Connection Progress Message 341 #number Size of data field Voice mode Voice data message 342 #number Size of data field Voice data Release request message 343 #number Not applicable Not applicable Exit confirmation message 344 #number Not applicable Not applicable

Message Name Separator field Packet Number Field Size field Data field name Connection confirmation message 240 #number Not applicable Not applicable Connection rejected message 241 #number Size of data field Reason for rejection Alert message 242 #number Not applicable Not applicable Voice data messages 243 #number Size of data field Voice data Release request message 244 #number Not applicable Not applicable Exit confirmation message 245 #number Not applicable Not applicable

Reason for rejection type Bit 7804 3210 number meaning One 0000 0001 One System Check (System_abnormal) 2 0000 0010 2 Call runaway (Call_line_busy) 3 0000 0100 4 Switch runaway (Switch_busy) 4 0000 1000 8 No response from the other party (Dest_line_busy) 5 0001 0000 16 No phone number (None_telephone_no)

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains, and the above-described embodiments and accompanying It is not limited to the drawing.

As described above, the present invention uses a variety of connection and control messages to transmit connection and control messages through the Internet between Internet phone gateways, consuming less computational resources and maximizing connection delay time after dialing as compared to a system compliant with standards. There is an effect that can be reduced.

Claims (6)

In the connection and voice data transmission method applied to the gateway, The sending gateway receives the connection request from the user and sends a connection request message to the receiving gateway, and the receiving gateway checks the free port, system status, and telephone number, attempts to dial in, and checks whether the other party receives the call. A first step of confirming and transmitting a connection confirmation message to the transmitting gateway; A second step of the transmitting gateway transmitting a connection progress message to the receiving gateway, the receiving gateway receiving a connection progress message to set a communication environment, and sending an alert message to the transmitting gateway; The sending gateway receives an alert message and transmits a voice data message, the receiving gateway receives a voice data message, checks whether a call termination message is received from the user, activates a timer, and sends and receives a voice data message. A third step of doing; And A fourth step in which the transmitting gateway receives the voice data message from the receiving gateway, checks whether the receiving end message is received from the user, starts a timer, and transmits and receives a voice data message; Connection and voice data transmission method in the gateway comprising a. The method of claim 1, The first step is, A fifth step in which the transmitting gateway receives a connection request from a user and allocates computing resources and transmits a connection request message to the receiving gateway; The receiving gateway checks whether there is a free port, sets the call congestion in the access rejection message, checks the system state, sets the system check in the access rejection message, and sets the counterpart response in the access rejection message by confirming the telephone number. A sixth step of attempting to make a telephone connection, and determining whether the other party receives the call; A seventh step of transmitting a connection confirmation message to the transmitting gateway when the other party receives the call as a result of the determination of the sixth step; An eighth step of setting the other party's non-response to the connection rejection message if the other party does not receive the call and transmitting a connection rejection message to the sending gateway; And A ninth step in which the receiving gateway transmits and receives a release request message and receives an end acknowledgment message from the transmitting gateway to perform connection release and initialization; Connection and voice data transmission method in the gateway comprising a. The method according to claim 1 or 2, The second step, A tenth step in which the transmitting gateway receives a response message in response to a connection request message and determines whether the received response message is a connection rejection message or a connection confirmation message; An eleventh step of transmitting / receiving a release request message and transmitting / receiving a termination confirmation message if the received response message is a connection rejection message as a result of the determination of the tenth step; And As a result of the determination in the tenth step, if the received response message is a connection confirmation message, a connection progress message is transmitted to the receiving gateway, the receiving gateway receives a connection progress message to set a communication environment, and sends an alert message. Twelfth Steps for Sending to the Sending Gateway Connection and voice data transmission method in the gateway comprising a. The method of claim 3, wherein The third step, A thirteenth step, wherein the sending gateway receives an alert message, transmits a voice data message, determines whether the receiving gateway receives a voice data message from the sending gateway, and receives a release request from a user; A fourteenth step of transmitting a release request message, transmitting and receiving an end acknowledgment message, and performing connection release and initialization if a release request is received from a user as a result of the determination of the thirteenth step; A fifteenth step of determining whether a call termination message has been received from the user if the release request from the user has not been received as a result of the determination of the thirteenth step; A sixteenth step of starting a timer and transmitting / receiving a voice data message if the user does not receive a telephone use termination message from the user as a result of the determination of the fifteenth step; As a result of the determination of the fifteenth step, when the telephone use termination message is received from the user, the seventeenth step of transmitting and receiving a release request message, transmitting and receiving a termination confirmation message, and performing connection release and initialization Connection and voice data transmission method in the gateway comprising a. The method of claim 3, wherein The fourth step, A thirteenth step, wherein the transmitting gateway receives a voice data message from the receiving gateway and determines whether a receiving request is received from a user; A fourteenth step of transmitting a release request message, transmitting and receiving an end acknowledgment message, and performing connection release and initialization if a release request is received from a user as a result of the determination of the thirteenth step; A fifteenth step of determining whether a call termination message has been received from the user if the release request from the user has not been received as a result of the determination of the thirteenth step; A sixteenth step of starting a timer and transmitting / receiving a voice data message if the user does not receive a telephone use termination message from the user as a result of the determination of the fifteenth step; As a result of the determination of the fifteenth step, when the telephone use termination message is received from the user, the seventeenth step of transmitting and receiving a release request message, transmitting and receiving a termination confirmation message, and performing connection release and initialization Connection and voice data transmission method in the gateway comprising a. In the gateway with the processor, The sending gateway receives the connection request from the user and sends a connection request message to the receiving gateway, and the receiving gateway checks the free port, system status, and telephone number, attempts to dial in, and checks whether the other party receives the call. A first function of confirming and transmitting a connection confirmation message to the sending gateway; A second function of the transmitting gateway transmitting a connection progress message to the receiving gateway, the receiving gateway receiving a connection progress message to set a communication environment, and sending an alert message to the transmitting gateway; The sending gateway receives an alert message and transmits a voice data message, the receiving gateway receives a voice data message, checks whether a call termination message is received from the user, activates a timer, and sends and receives a voice data message. A third function of doing; And A fourth function of operating a timer by checking whether the sending gateway receives a voice data message from the receiving gateway, receiving a telephone use end message from the user, and transmitting and receiving a voice data message; A computer-readable recording medium having recorded thereon a program for realizing this.