KR100880978B1 - Method and System for Sending Short Voice Message - Google Patents

Abstract

TECHNICAL FIELD The present invention relates to mobile communications, and more particularly, to a system and method for transmitting a voice message to a recipient without network intervention. The present invention provides a method for transmitting a short voice message, wherein a calling terminal records and stores a short voice message in response to a user input, and sets a general voice call setting between receiving terminals according to a request for transmitting the short voice message. Request, the communication network sets up a general voice call with a receiving terminal according to the call establishment request, and when the calling terminal completes the setting of the general voice call, the short voice message is reproduced and transmitted to the receiving terminal; A receiving terminal receives the short voice message.

Short voice message, call setup, recording, playback

Description

Method and System for Sending Short Voice Message

1 is a diagram showing the configuration of a mobile communication terminal according to an embodiment of the present invention;

2 is a view showing an operation process of a calling terminal according to an embodiment of the present invention;

3 is a view showing the operation of the calling terminal and the receiving terminal according to an embodiment of the present invention.

TECHNICAL FIELD The present invention relates to mobile communications, and in particular, to a method and system for transmitting a Short Voice Message (SVM).

In addition to text messaging services, mobile communication services provide services that can transmit simple messages made of voice. For example, US Patent No. 6,954,781 describes a method of converting a voice message into text and transmitting the converted text message to a receiving mobile communication terminal. However, this method has the disadvantage that the mobile communication terminal must have complex speech recognition algorithms and text-to-speech converters.

Alternatively, a voice mail box service is provided. In the voice mailbox service, when a calling user accesses a voice mailbox through a mobile communication terminal and stores a message through voice recording, the voice mailbox notifies the receiving user. The receiving user can dial in to access the voice mailbox and retrieve and listen to the stored messages. In other words, the receiving user is inconvenient to dial a number that can access the voice mailbox to retrieve and listen to the message. Carrier Aircel uses '5535' (Link: http: //in.rediff.com/money/2006/apr/14mobile.htm), which allows users to send voice messages stored on the network and the receiving mobile terminal is similar to a voice mailbox. Introduced a technique for retrieving stored voice messages by dialing '.

US Patent Publication 2005-286689 discloses sending a voice message to a service center in the form of a text short message.

Push to Talk over Cellular (PoC) is a name of Push-to-Talk (PTT) service provided by a cellular mobile network. PoC is based on packet-switched data transmission and uses a Voice over IP (VoIP) method to encode voice transmission data. For this method, a delay of 1-2 seconds is incurred for data buffering associated with voice data transmission.

In the case of the Reliance Introduces Talking Message Service (RITMS), the network number must be dialed to record the message, and the network will then send the message to the target recipient. At this time, if the receiver is busy and does not make a talk message in real time, it is inconvenient to retrieve the stored talk message by dialing the same number later. And all calls dialing a specific number, for example '1234111', to record or retrieve a chat message are charged at a certain rate.

The various methods described above have the following limitations.

1. Speech recognition algorithms are not efficient at handling various kinds of languages and recognizing accents from different users.

2. It is expensive to implement text to speech converters on a mobile communication terminal.

3. Although the purpose is to send a voice message, there is a cumbersome process of entering text corresponding to the voice message using a small keypad.

4. In case of inputting text corresponding to voice message, illiterate cannot use it because it needs to know a specific language.

5. SMS cannot be sent in most local languages, which is a major limitation.

6. Network intervention is needed to store voice messages.

7. Delays may occur during transmission.

8. Voice messages can only be sent between mobile networks and cannot be sent to other communication networks associated with the mobile network.

9. Both the originator and the receiver have to pay a fee to send or retrieve messages from the network.

10. There is a complex process of retrieving messages from the network.

The present invention provides a method and system that allows a calling user to send the voice message itself directly to the receiving user without typing text corresponding to the content of the voice message.

The present invention provides a method and a system in which a calling user records a voice message and a receiving user receives a voice message without being connected to a network and recording and receiving can be performed.

Accordingly, the present invention describes a method of transmitting a short voice message (SVM). The method comprises the steps of: the transmitting device initiating a short voice message function and recording a short voice message; transmitting, by the communication network, a call setup message as a general voice call at the request of the transmitting device; While the call is being set up, the receiving device decodes the received call setup message to determine that it is a voice call setup for transmitting a short voice message, and the receiver sets parameters for recording the short voice message; And when the call device completes the call setup, directly transmitting the recorded short voice message to the receiving device, and recording and storing the short voice message received by the receiving device.

And the present invention describes a system for transmitting short voice messages. The system initiates a short voice message function, records a short voice message, transmits a call setup message, and transmits the recorded short voice message when the call setup is completed, and the transmission. Upon receiving the call setup message from the device, the communication network transmits the call setup message to the receiving device as a normal voice call, and decodes the received call setup message during call setup, during the call setup. Confirming that the voice call setup message is for transmitting the short voice message, setting parameters for recording the short voice message, and when the call setup is completed, recording the short voice message received from the transmitting device. Device.

According to the present invention, the short voice message is transmitted directly from the calling terminal to the receiving terminal by establishing a normal voice call. The short voice message is recorded directly in the receiving terminal and stored in an inbox together with a notification of the reception of the short voice message without user intervention. This allows the user to store the short voice message just as it stores the short message.

In a second aspect of the invention, if the user is busy (such as during a meeting or driving) and does not want to be disturbed, the profile can be set up as no incoming calls other than SMS and / or SVM.

If the user does not want to be disturbed and wants to make a voice call with another user who has set up a profile such as Do Not Disturb, the calling user will initiate the voice call and the calling terminal has the profile set to Do Not Disturb. You will receive a message like "I'm busy right now, so please leave a message." The originating user will speak the message and the message will then be stored directly at the receiving terminal without user intervention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

First, the configuration of an apparatus for transmitting a short voice message according to an embodiment of the present invention will be described. The short voice message transmission device is a terminal capable of generating, transmitting, receiving, and storing a short voice message. An example thereof may include a mobile communication terminal, and may be applied to other communication terminals. Referring to Fig. 1, a configuration of a mobile communication terminal to which the present invention is applied will be described. 1 is a view showing the configuration of a mobile communication terminal according to an embodiment of the present invention.

Referring to FIG. 1, the mobile communication terminal includes a control unit 10, a memory unit 20, a voice processing unit 20, a key input unit 40, a baseband processing unit 50, and an RF (Radio Frequency) module 60. Include.

The memory unit 20 stores a program for processing and controlling the control unit 10, reference data, various kinds of updatable storage data, and the like, and is provided as a working memory of the control unit 10. And stores program data related to the short voice message function according to the present invention and includes a short voice message storage area. The short voice message is a short message composed of voice. The short voice message function is a function of creating and transmitting a short voice message and receiving and storing a short voice message from another terminal, and related detailed functions are provided to the user in the form of a short voice message menu. The short voice message storage area is an area in which at least one short voice message is stored. For example, the short voice message storage area may be divided into a short voice message send box and a short voice message inbox. The short voice message outbox is an area in which the transmitted short voice message is stored, and the short voice message inbox is an area in which the received short voice message is stored.

The voice processing unit 30 connected to the control unit 10 and the microphone and speaker connected to the voice processing unit 30 are used for phone calls and voice recording under the control of the control unit 10.

The key input unit 40 includes a plurality of function keys such as *, # keys, and menus, selections, calls, erases, power / end, volume, and shooting to correspond to various functions of the mobile communication terminal. And key input data corresponding to a key pressed by the user to the controller 10. In addition, the key input unit 40 includes a character key to which each number of 0 to 9 is assigned, and a plurality of Korean or English characters are assigned to the key to which each number is assigned.

The RF module 60 transmits and receives a radio signal with a mobile communication base station through an antenna. The RF module 60 modulates a signal to be transmitted from the control unit 10 through the baseband processor 50 and transmits an RF signal through the antenna. In addition, the RF signal received through the antenna is demodulated and provided to the controller 10 through the baseband processor 50. The baseband processor 50 processes a baseband signal transmitted and received between the RF module 60 and the controller 10.

The mobile communication terminal configured as described above executes the short voice message function according to the present invention, and when the short voice message creation mode is set, the user's voice is input through the microphone to configure the short voice message, and if there is a request for transmission, By establishing a voice call with a receiving mobile communication terminal (hereinafter referred to as a "receiving terminal") through a network, a voice communication channel is connected. When the receiving terminal is ready to receive the short voice message, the calling mobile communication terminal (hereinafter referred to as the "sending terminal") reproduces the short voice message to be transmitted and transmits the voice reproduced through the connected voice communication channel. do. The receiving terminal records and stores the received voice. As described above, since the present invention transmits a short voice message through a voice communication channel, a voice call setup message, which is a message for setting up a voice call, is used. According to the present invention, the setup message has the same format as the setup message for the general voice call setup. The user-user information of the setup message is used to distinguish the call setup for the general voice communication and the call setup for the short voice message. Adjust the field value (User information).

Table 1 below shows coding of user-user information included in the configuration message, and referred to 3GPP TS 24.008.

User-user protocol identifier (octet 3) beat Contents 8 7 6 5 4 3 2 One 0 0 0 0 0 0 0 0 User Specific Protocols (Note 1) 0 0 0 0 0 0 0 One OSI upper layer protocol 0 0 0 0 0 0 One 0 X.244 (Note 2) 0 0 0 0 0 0 One One Reserve for system management integration 0 0 0 0 0 One 0 0 IA5 Character (Note 3) 0 0 0 0 0 One One One Rec.V.120 ratio adaptation 0 0 0 0 One 0 0 0 Q.931 (I.451) User-Network Call Control Messages 0 0 0 One 0 0 0 0 Reserved for other network layers or Layer 3 protocols including Rec.X.25 (Note 4) To 0 0 One One One One One One 0 One 0 0 0 0 0 0 National use To One One 0 0 One One One One 0 One 0 One 0 0 0 0 Reserved for other network layers or Layer 3 protocols including Rec.X.25 (Note 4) To One One One One One One One 0 Other values are also reserved. Note 1: User information is organized according to user requirements. Note 2: User information is organized according to Rec.X.244, which specifies the structure of X.25 call user data. Note 3: User information consists of IA5 characters. Note 4: These values are reserved to distinguish this protocol identifier from the first octet of an X.25 packet that contains an identifier of a general format.

User-user signaling USS1 is potentially activated by the user-user information element of the setup message.

An operation process of the calling terminal and the receiving terminal according to an embodiment of the present invention described above will be described with reference to FIGS. 2 and 3. FIG. 2 is a diagram illustrating a process in which a calling terminal generates a short voice message and transmits a setting message according to an embodiment of the present invention. FIG. 3 shows a short message after the calling terminal transmits a setting message in FIG. 2. The operation process of the originating terminal 70, the communication network 80, and the receiving terminal 90 until the process of receiving a voice message is shown. According to an embodiment of the present invention, in the following description, operations performed in the calling terminal 70 and the receiving terminal 90 may be performed under the control of the controller 10 of each terminal.

First, referring to FIG. 2, in step 101, the calling terminal 70 starts a short voice message menu in response to a user input through key manipulation and the like, and proceeds to step 103. In step 103, when the calling voice message menu is started, the calling user selects the message making menu, sets the short voice message writing mode, and records the message content. At this time, the calling user may modify the message content or re-record the message if desired. When the recording is completed, the user presses the send button to request the transmission of the short voice message. Accordingly, the originating terminal 70 detects a short voice message transmission request input from the user in step 105 and sets a destination address input from the user. In this embodiment, the destination address is assumed to be a telephone number of the receiving terminal 90. In step 107, the originating terminal 70 attempts to establish a voice call to the receiving terminal 90. According to an embodiment of the present invention, the calling terminal 70 will attempt to set up a normal voice call. At this time, the calling terminal 70 determines the value of the VOICE_CALL_TYPE flag in order to distinguish between a general voice call and a short voice message transmission. The VOICE_CALL_TYPE flag may have two values: NORMAL_VOICE_CALL and SHORT_VOICE_MESSAGE. NORMAL_VOICE_CALL represents general voice communication, and SHORT_VOICE_MESSAGE represents transmission of a short voice message. Accordingly, in step 109, the calling terminal 70 sets the VOICE_CALL_TYPE flag value to SHORT_VOICE_MESSAGE and proceeds to step 111. In step 111 the originating terminal 70 will transmit the CM_SERVICE_REQ to cause a voice call to the communication network (80). In step 113, the calling terminal checks whether the CM_SERVICE_ACCEPT is received from the communication network 80. If the communication network 80 transmits CM_SERVICE_REJECT, the calling terminal 70 proceeds to step 115 and step 117 and retries the transmission of the short voice message according to the following retransmission algorithm. If the communication network 80 assumes a general voice call and responds with CM_SERVICE_ACCEPT, the calling terminal 70 proceeds to step 119 and sets parameters of the configuration message according to the VOICE_CALL_TYPE flag value. That is, if the VOICE_CALL_TYPE flag is set to NORMAL_VOICE_CALL, the calling terminal 70 proceeds to step 121 to perform a general voice communication procedure. If the VOICE_CALL_TYPE flag is set to SHORT_VOICE_MESSAGE, the calling terminal 70 proceeds to step 123, sets the bearer capability information element of the setup message as default parameters as a general voice call, and proceeds to step 125. . In step 125, the calling terminal 70 sets a user-user information element of the configuration message as follows.

I. Octet 1 is set to TRUE (with or without IE).

ii. Octet 2 is set to the data length (= 1 byte).

iii. Octet 3 is set to a user-user specific protocol.

iv. Octet 4 (data) is the SHORT_VOICE_MESSAGE value (USS1 IMPLICIT).

When the setting of the setting message is completed, the calling terminal 70 proceeds to step 127 and transmits the setting message to the network 80. Next, an operation process of the calling terminal 70, the communication network 80, and the receiving terminal 90 until the receiving terminal 90 receives the short voice message will be described with reference to FIG. 3. As shown in FIG. 3, the originating terminal 70 transmits a setting message to the communication network 80 in step 127 (the same as that of FIG. 2).

When the communication network 80 receives the setup message from the calling terminal 70, the communication network 80 checks whether the receiving user is accessible in step 129. If the receiving terminal 90 is accessible, the process proceeds to step 131. If the receiving terminal 90 is not accessible, the process proceeds to step 133 so that the retransmission algorithm described below is performed. On the other hand, if the receiving network 80 is accessible (reachable), the communication network attempts to establish a voice call to the receiving terminal 90 in step 133. Accordingly, in step 135, the communication network 80 transmits a configuration message to the receiving terminal 90. After the receiving terminal 90 receives the setup message, the network will establish a normal voice call. That is, when the receiving terminal 90 receives the setup message, it decodes user-user information in step 137 to recognize that this is a voice call setup for short voice message transmission, and sets the VOICE_CALL_TYPE flag to SHORT_VOICE_MESSAGE. At this time, the receiving terminal 90 will establish a general voice call without notifying the user of the receiving terminal 90. The receiving terminal 90 transmits the CONNECT_ACK to the calling terminal 70 through the communication network 80 to confirm the call in step 139, and starts the recorder in step 141 to record the short voice message. Get ready to do The recording of the message is performed directly by the receiving terminal without the intervention of the receiving user.

On the other hand, as the call is established, when the caller terminal 70 receives the CONNECT_ACK in step 139, it starts to play the short voice message recorded in step 143. The short voice message thus reproduced is transmitted to the receiving terminal 90 through the communication network 80, and the receiving terminal 90 records the received short voice message. When the transmitting of the short voice message is completed in step 145, the calling terminal 70 proceeds to step 147 and transmits a disconnect message to the receiving terminal 90 through the communication network 80. When receiving the disconnect message, the receiving terminal 90 stops recording in step 149, stores the recorded short voice message in the received folder, and transmits a RELEASE message through the communication network 80 in step 151. Transfer to 70. When the originating terminal 70 receives the release message, it knows that the short voice message has been transmitted, and in step 153, transmits a release complete message to the receiving terminal 90 through the communication network 80. In step 155, the short voice message is stored in the short voice message outbox folder and the user is notified that the short voice message has been stored in the outbox. In step 157, the reception terminal 90 receiving the release completion message notifies the user of the reception of the short voice message. The receiving user can then listen to the message stored in the short voice message inbox when desired. According to another embodiment, an option may be added to automatically execute a short voice message. On the other hand, because the receiving user is not accessible (reachable) or the switch of the receiving terminal 90 is turned off, in step 113, the communication network 80 transmits a REJECT message, or a short voice message If the transmission fails, the originating terminal 70 will attempt to send a short voice message to the receiving user according to the following retransmission algorithm. If the calling terminal 70 cannot transmit the message within a predetermined time, for example, within 48 hours, it deletes the short voice message and notifies the user that the short voice message cannot be delivered.

All send / retransmit notifications will be sent to the user with the option of "retry" and "ignore". If the calling user selects the "Retry" option, it will attempt to resend at a predetermined time until a successful short voice message is sent, which will be repeated up to a predetermined time. For example, the short voice message retransmission may be set to attempt to retransmit the message every 4 hours until 15 minutes, 30 minutes, 1 hour, 2 hours, 4 hours, and 48 hours thereafter. This time setting can be made by the user. Table 2 below shows an example of a retransmission algorithm.

static time initial_time; static int time_gap = 15; / * in seconds * / static time next_time_to_send_SVM; algorithm_to_send_SVM () {time current_time; current_time = get_time_from_system (); / * checking if we are trying to send SVM for more then 48hrs * / If (time_gap <= 2880) {If (next_time_to_send_SVM == current_time) {If (pending_SVM == SVM_PENDING_TO_SEND) {retransmission_option = notify_USER_for_SVM_retransmission () Ifoption = "retry" {pending_SVM = NO_SVM_PENDING_TO_SEND; If (! send_pending_SVM ()) {pending_SVM = SVM_PENDING_TO_SEND; if (time_gap> = 240) {/ * Now we will send SVM after every 4 hrs * / time_gap = time_gap + 240; next_time_time_time_time_end_time_end_time_ + 240;} else {time_gap = time_gap * 2; next_time_to_send_SVM = current_time + time_gap;}}} else {/ * User selected not to retransmit the message * / delete_pending_SVM (); pending_SVM = NO_SVM_PENDING_TO_SEND;}}}} else {/ * we cannot send the message since last 48hrs so now delete the SVM and give a notification to user * / delete_pending_SVM (); notify_USER_for_SVM_Failure (); pending_SVM = NO_SVM_PENDING_TO_SEND;}}

In addition, the mobile communication terminal to which the present invention is applied should have at least 1MB of free storage space (a space for storing a short voice message of about 1 minute). Accordingly, when receiving terminal 90 receives a setup message from communication network 80 and finds that it is for short voice message transmission, it should check whether there is enough memory area to store the short voice message. If the receiving terminal 90 does not have enough storage space, it rejects the incoming call setup for "BUSY" reason and the user "memory is full," delete the other short voice message for the incoming short voice message. The receiving user who has received this notification deletes some messages using the keypad, etc. If the call is dropped during the transmission of the short voice message, the calling terminal 70 transmits the short voice message according to the retransmission algorithm. The receiving terminal 90 stores the recorded message until the call is dropped, if the receiving terminal 90 is busy with a circuit switch call. When the short voice message is received, the receiving terminal 90 transmits a busy tone, the calling terminal 70 receives the busy tone, and according to a retransmission algorithm. (D) Retry transmitting the short voice message, and when the calling terminal 70 receives the normal voice call during the transmitting of the short voice message, the calling terminal transmits a busy tone to the normal voice call and receives the receiving terminal 90 If a) receives a normal voice call while receiving a short voice message, the receiving terminal 90 transmits a busy tone to the general voice calling originating terminal, and the receiving terminal 90 receives a packet switch call. If so, the receiving terminal 90 can receive the short voice message that is received without notification of the incoming call, without affecting the ongoing packet switch call, according to an embodiment of the present invention, the short voice message is transmitted on a specific date. In other words, the user may transmit a short voice message at a time of a delayed period of time. Songdoel shall set the time and date, and the corresponding time and date, the mobile terminal will send the voice short message to the receiving terminal.

According to another embodiment of the present invention, even if the receiving terminal is not a mobile communication terminal but a wired terminal connected to a land line, a short voice message service can be enabled. When the originating terminal 70 transmits the short voice message to the terminal connected to the landline, the voice call session is established. Then, when someone at the receiving side receives the call, the recorded message will be played at the calling terminal 70, and the receiving user can hear the playing message.

In the foregoing detailed description of the present invention, specific embodiments have been described. However, it will be apparent to those skilled in the art that various modifications can be made without departing from the scope of the present invention. For example, it should be noted that a host for storing applications includes, but is not limited to, a microchip, microprocessor, portable communication device, computer, rendering device, or multifunction device.

According to the present invention described above, regardless of the language, it is possible to transmit a message in a language that they know, and real-time service can be provided without a transmission delay. And anyone who can't read or write can easily use the messaging service and avoid the hassle of typing on a small keyboard. In addition, even without the General Packet Radio Service (GPRS) technology, it is possible to use the existing 2G / 3G technology, and can replace the short text message. And because you can record the message with simple key operation instead of entering many keys to input the message, it is convenient to use, and regardless of the type of the receiving terminal, a short voice message can be transmitted. No interaction with the communication network is required. Moreover, the present invention does not incur additional costs from the communication network point of view, and the user may transmit a short voice message of any length if it is smaller than the free memory capacity supported by the sending and receiving terminals. If the memory capacity supported by the terminal is sufficient, the length of the short voice message may be unlimited. In addition, only the calling party pays for the service, and the receiving party does not have to pay for receiving the message.

Claims (14)

In a method for transmitting a short voice message, The transmitting device initiating a short voice message function and recording the input voice to generate a short voice message; Transmitting, by a communication network, a call setup message as a general voice call according to a request of the transmitting device; While the call is set up, the receiving device decodes the received call setup message to determine that it is voice call setup for short voice message transmission; Setting, by the receiving device, parameters for recording a short voice message; Reproducing the short voice message, and transmitting the reproduced voice directly to the receiving device when the call setup is completed; and And recording, by the receiving device, the transmitted voice and storing the received voice as a received short voice message. The method of claim 1, wherein generating the short voice message further comprises modifying the short voice message by the transmitting device according to a user request. 2. The method of claim 1, further comprising the step of the receiving device storing the received short voice message and notifying a user of the reception of the received short voice message. The method of claim 1, wherein the predetermined field of the call setup message is set to a value indicating that the call setup message is a call setup message for setting up a general voice call for transmitting a short voice message. . The method of claim 4, wherein the communication network sets up a general voice call after receiving the call setup message from the transmitting device. 5. The method of claim 4, wherein the receiving device further comprises automatically playing the received short voice message and automatically reproducing the received short voice message. The method of claim 4, wherein the transmitting device further comprises setting a transmission time of the short voice message to a specific time according to a user input. In a system for transmitting a short voice message (Short Voice Message), Initiate the short voice message function and record the input voice to generate a short voice message, send a call setup message, and when the call setup is completed, play the short voice message to reproduce the voice. A transmission device for transmitting, A communication network which, upon receiving the call setup message from the transmitter, transmits a call setup message to the receiver as a normal voice call and transmits the reproduced voice to the receiver; While the call is set up, the received call setup message is decoded to confirm that it is a voice call setup message for transmitting the short voice message, the parameters for recording the short voice message are set, and when the call setup is completed, And the receiving device for recording the voice received from the transmitting device and storing the received voice short message as a received voice short message. In the short voice message transmission method, Generating a short voice message by recording a voice input from a user, and requesting a general voice call setting between receiving terminals according to a request for transmitting the short voice message; Establishing, by the communication network, a general voice call with a receiving terminal according to the call establishment request; Transmitting, by the calling terminal, the short voice message to the receiving terminal through the communication network when the general voice call setup is completed; And receiving, by the receiving terminal, the voice transmitted through the communication network, recording and storing the received short voice message as a received short voice message. The process of claim 9, wherein the originating terminal requests the general voice call setup. Detecting the occurrence of the short voice message transmission request; And transmitting a call setup message including a value indicating that the message is a general voice call setup message for transmitting the short voice message. The method of claim 10, wherein the short voice message transmission request occurs in response to a user input or at a predetermined time. The method of claim 10, wherein the transmitting of the reproduced voice to the receiving terminal through the communication network comprises: Receiving a CONNECT_ACK from the receiving terminal; Playing the short voice message to be transmitted and transmitting a voice included in the short voice message; And transmitting a DISCONNECT message when playback of the short voice message is completed. The method of claim 12, wherein the receiving terminal stores the received short voice message, Receiving and recording the voice transmitted from the receiving terminal through the communication network; Completing the recording when the disconnect message is received from the calling terminal, and storing the received voice short message including the recorded voice; Transmitting a RELEASE message to the calling terminal and notifying the user of receiving the received short voice message when receiving a RELEASE COMPLETE message from the calling terminal; And reproducing the received short voice message according to a play request. The method of claim 10, further comprising: if the short voice message transmission fails, the calling terminal attempts to retransmit by generating a request for transmitting the short voice message at a predetermined time. Way.

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