KR100541990B1 - Method and apparatus for providing short message type call services - Google Patents

Abstract

The present invention relates to a method and apparatus for providing a single call service. In the method for providing a one-time call service according to the present invention, the method comprises: receiving a first call connection request signal from an originating exchange, wherein the first call connection request signal includes a calling identifier corresponding to the calling terminal and an assigned telephone number; To set a first call path between the calling terminal and the session managing device, receiving a single message from the calling terminal through the first call path, storing the received single message in a storage device, and calling identifier. Or generating or extracting a call group corresponding to the assigned telephone number from a subscriber database, and transmitting at least one second call connection request signal to a called side exchange managing at least one called terminal corresponding to a subscriber in the call group. Wherein the second call connection request signal is between the session managing device and the at least one called terminal. At least one second communication path, and transmitting the stored one-time message to the at least one destination terminal through the second communication path in a first in, first out (FIFO) manner. .

Call, one-time, message, session, group, first in, first out (FIFO)

Description

Method and apparatus for providing one-time call service             

1 is a signal flow diagram illustrating a conventional voice call service providing process.

2 is a view schematically showing a configuration that can be applied to a one-time call service according to an embodiment of the present invention.

3 is a signal flow diagram showing in detail the process for providing a one-time call service according to an embodiment of the present invention.

4 is a signal flow diagram illustrating a process for providing a one-time call service according to this preferred embodiment of the present invention.

Figures 5a and 5b is a flow chart for explaining in detail the process for providing a one-time call service according to this preferred embodiment of the present invention.

6 is a signal flow diagram illustrating a one-time call service subscription procedure according to a preferred embodiment of the present invention.

7 is a view for explaining an example of a one-time call service subscription procedure according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

201, 203, 205: exchanger (MSC) 207: home exchanger

209: mobile communication network 211, 213, 215: mobile terminal

217: session management device

The present invention relates to a method and apparatus for providing a one-time calling service.

In general, a voice call service using a telephone is achieved by a physical connection between a caller's originating terminal and a called party's terminal by a wired public communication network, a wireless mobile communication network, or an exchange system included in the Internet. For example, the caller dials the called party's phone number and attempts to make a call. At this time, the receiver's terminal rings. When the called party answers the call, the call is connected and the voice call service is started. When either person hangs up, the call is released and the voice call ends. In the voice call termination state, the terminal is in an idle state that can always make or receive calls. This conventional voice call service will be described in more detail.

1 is a signal flow diagram illustrating a conventional voice call service providing process.

Referring to FIG. 1, when the calling terminal requests a call connection to the called terminal (step 101), the calling side exchange (MSC) receives a call connection request signal of the calling terminal and establishes a channel between the calling terminals. Respond to the call connection request of the calling terminal (step 103). The originating exchange exchanges the destination location information to the home location register (HLR) (step 105).

The home location register (HLR) requests routing information from the originating exchange to the destination exchange (MSC) for a request for routing location information (step 107). The called party exchange sends the routing information (TLDN: Temporary Local Directory Number) to the HLR in response to the routing information request signal received from the HLR (step 109). The HLR then sends the called location information to the calling exchange using the received routing information (step 111).

The calling exchange requests the called exchange to access the ISUP call through the Initial Address Message based on the received routing information, and accesses the ISUP call through the Address Complete Message from the called exchange. Respond to the request (step 113). In this case, the ISUP call connection request signal includes a called terminal identifier and a calling terminal identifier.

The called exchange sends a call connection request signal to the called terminal according to the ISUP call connection request signal sent from the calling exchange (step 117) and receives a response signal for the call connection request from the called terminal (step 119). As a result of this process, a call path is formed between the calling exchange and the called exchange (step 121).

Using the channel established between the calling terminal and the called terminal, the calling terminal subscriber may talk to the called terminal subscriber (step 123). When the call ends, the set channel is released (step 125), and the calling terminal and the called terminal are in an idle state to make or receive a call (step 127). As such, the conventional voice call service enables the calling terminal and the called terminal to make a call using a channel established by an exchange in a communication network.

However, in the conventional voice call service, the calling terminal requests a call connection to the called terminal and must wait for a predetermined time for the called terminal to respond to the call connection request. In addition, when the called terminal does not respond to the call connection request from the calling terminal there is a problem that the calling terminal and the called terminal can not talk.

On the other hand, the existing voice call service provides a conference call addition service or conference calls in which a plurality of speakers and a plurality of listeners can simultaneously join a call. By assigning a separate uplink channel or time slot to each potential speaker and a separate down channel or time slot to each potential listener, the conference call can be extended to the current wireless system. Furthermore, individual full duplex channels, i.e., inbound and outbound resources, can be allocated to each subscriber station of the talk group.

However, this conventional method is very inefficient in terms of resource use. For example, if a group conference call using individual uplink and downlink resources is configured for each of a plurality of subscriber stations, it places a large burden on the capacity of most communication systems. That is, the conventional method has a problem that greatly increases the load on the communication system.

As described above, the conventional voice call service method must not only be inconvenient because it is necessary to connect a terminal of a desired counterpart by pressing a phone number, but also must occupy network resources such as a wireless channel because the call path must be connected until the call is completed. . Therefore, the user has to pay a high call charge.

The present invention utilizes the existing mobile communication system as it is, it is possible to talk to each other without having to press individual phone numbers, if necessary between a plurality of subscribers, and do not occupy the resources of the network while not making a call to pay the call fee A communication service method and apparatus capable of making a long-term call without a need are provided.

Another object of the present invention is to provide a communication service method and apparatus capable of making low-cost calls in an environment where two or more users of mobile phones or mobile communication terminals must exchange frequent and fragmentary voice calls with each other. will be.

Another object of the present invention is to propose a method and apparatus for providing a one-time voice call service and a session management system for managing voice calls using a timer.

In order to achieve the above object, according to an aspect of the present invention, a mobile communication network including a source side exchange (MSC) managing at least one source terminal and a destination side exchange (MSC) managing at least one destination terminal. A method for providing a one-time call service in a session management device coupled to an originating exchange in a method, the method comprising: receiving a first call connection request signal from an originating exchange, wherein the first call connection request signal is the originating terminal; Including a calling identifier corresponding to the caller and an assigned telephone number, and for establishing a first call path between the calling terminal and the session managing device, receiving a one-time message from the calling terminal through the first call path. Storing the received one-time message in a storage device, corresponding to the calling identifier and the assigned telephone number. Creating or extracting a call group from a subscriber database, transmitting at least one second call connection request signal to a called side exchange managing at least one destination terminal corresponding to a subscriber in the call group, wherein the second The call connection request signal is for establishing at least one second call path between the session management device and the at least one called terminal; and the stored one-time message via the second call path. It provides a one-time call service providing method comprising the step of transmitting in a first in, first out (FIFO) method to the terminal.

According to another aspect of the present invention, there is provided a session management apparatus coupled to an originating exchange (MSC) managing at least one originating terminal, a called side exchange (MSC) managing at least one called terminal and an originating exchange. A method for providing a one-time call service through an originating exchange in a mobile communication network, the method comprising: receiving a first call connection request signal from an originating terminal, wherein the first call connection request signal corresponds to an originating terminal corresponding to the originating terminal; And an identifier and an assigned telephone number, wherein the first call connection request signal is transmitted to a session managing device corresponding to the assigned telephone number, wherein the first call connection request signal is connected to the calling terminal and the session. Establishing a first call path between management devices, receiving at least one second call connection request signal from the session management device; Wherein the second call connection request signal includes at least one called identifier corresponding to at least one called terminal—at least to query a location of the at least one called terminal to a home location register (HLR) in the mobile communication network. Transmitting one query signal, and transmitting a second call connection request signal to a called side exchange corresponding to at least one called location information received from the home location register, wherein the second call connection request signal is And at least one second call path between the session managing device and the at least one called terminal, wherein the session managing device receives a single message from the calling terminal and receives the received one-time message. Stored in the storage device, the storage device comprising at least one terminal corresponding to the calling identifier and the assigned telephone number. Creating a call group or extracting it from a subscriber database, and transmitting the stored one-time message in a first in, first out (FIFO) manner to the at least one destination terminal in the call group via the second call path; Provided is a method for providing a one-time call service.

In a preferred embodiment, the one-time message input from the calling terminal or the called terminal of the subscriber in the call group while the first and second call paths are established is transmitted to the remaining terminals in a first-in first-out (FIFO) manner. do.

In addition, at least two one-time messages input from the calling terminal or the called terminal of the subscriber in the call group in the state where the first and second call paths are set are sequentially, overlapping or simultaneously transmitted to the remaining terminals. .

In addition, the method for providing a one-time call service may further include determining a mute state of the calling terminal or the called terminal, wherein the mute state refers to a state in which there is no one-time message input from the calling terminal or the called terminal for a predetermined time. can do.

The call group may be registered in a subscriber database using a dual tone multi-frequency (DTMF), wireless internet, short message service, and wired internet.

The call group may be registered in a subscriber database by using members of messenger services used in wired and wireless internets.

In addition, the call group is characterized in that it comprises an intangible computer program as a member of the call group.

In addition, the subscriber in the call group may be included in at least one second call group at the same time.

The method for providing a one-time call service may further include announcing a one-time message transmission state to the calling terminal when the second call path is established.

The notification may be performed through at least one of a short message service (SMS), a CDM Alert with Information, and a CDD Flash with Information.

In addition, the one-time message may be all delivered to the called terminal through the second call path regardless of the call release by the calling terminal.

In addition, the method for providing a one-time call service may further include notifying completion of transmission of the one-time message to the calling terminal whenever the transmission of the one-time message to the at least one called terminal is completed.

According to another aspect of the invention, a coupling to an originating exchange in a mobile communication network comprising a calling side exchange (MSC) managing at least one originating terminal and a called side exchange (MSC) managing at least one called terminal. A session management apparatus for providing a one-time call service, comprising: means for receiving a first call connection request signal from an originating exchange, wherein the first call connection request signal is a calling identifier corresponding to the calling terminal and an assigned telephone call; Means for receiving a one-time message from the originating terminal via the first communication path, the first call path between the originating terminal and the session managing device; Means for storing in a storage device, creating a call group corresponding to said calling identifier and said assigned telephone number or Means for extracting from the database, means for transmitting at least one second call connection request signal to a called side exchange managing a at least one called terminal corresponding to a subscriber in the call group, wherein the second call connection request signal Is for establishing at least one second call path between the session management device and the at least one called terminal, and first-in, first-out of the stored short-lived message to the at least one called terminal via the second call path. Provided is a session management apparatus comprising means for transmitting in a (First In, First Out; FIFO) manner.

In a preferred embodiment, the one-time message input from the calling terminal or the called terminal of the subscriber in the call group while the first and second call paths are established is transmitted to the remaining terminals in a first-in first-out (FIFO) manner. do.

In addition, the session management apparatus may further include means for determining a silent state of the calling terminal or the called terminal, wherein the silent state refers to a state in which a single message input from the calling terminal or the called terminal is absent for a predetermined time. have.

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

2 is a view schematically showing a configuration that can be applied to a one-time call service according to an embodiment of the present invention.

Referring to Figure 2, the configuration that can be applied to the one-time call service according to the present invention is a plurality of mobile terminals (211, 213, 215), the switch (201, 203, 205) for managing each of the portable terminals, home switch 207, a session management device 217 coupled to a home switch and a mobile communication network 209 including switches 201, 203, 205, and 207.

A method of providing a one-time call service according to the present invention according to such a configuration is as follows. The caller presses a dedicated talk key of the calling terminal 211 or dials an assigned phone number. The mobile communication network 209 immediately connects the voice call to the session managing device 217 to start the caller's call. If the calling terminal 211 has a dedicated talk key, pressing this key automatically dials a predefined number.

The session managing device 217 extracts from the database a call group-two or more subscriber lists-which are preset and registered from the caller number and the number dialed by the caller, and connects the telephones simultaneously to each subscriber in the group. When the call connects, it sends the caller's voice call.

Optionally, the session managing device 217 stores the voice call content transmitted from the caller in the storage device while attempting to call a plurality of subscribers, and stores the call based on a first-in-first-out method when the call is connected to each called party while continuing to store. Delivers a single message logged to the device.

In addition, the session managing device 217 notifies the caller terminal whenever the connection is made for each called party so that the caller can check the current connection state by a beep or the like. In this case, a short message service (SMS) is used, or a CDMA Alert with Information message or a CDMA Flash with information is used.

If at least one called terminal 213 (215) responds normally, the caller's call is delivered. If the called terminal 213 (215) does not respond, the call connection may be abandoned only for the called subscriber. On the other hand, a subscriber who fails a call attempt may attempt to transmit a call attempt for a predetermined time and transmit the stored caller's contents.

When the calling subscriber releases the call, the call connection with the session managing device 217 is released. On the other hand, the session managing device 217 transfers the contents stored in the storage device to each of the called terminals 213 and 215 to the called terminals 213 and 215, and then releases the call with the called terminal.

Similarly to the connection announcement mentioned above, the session managing device 217 notifies the calling terminal 211 whenever the transmission of the voice content of the one-time message to the called terminal 213 (215) is completed. A beep may be used to check the transmission status of the one-time message. In this case, a short message service (SMS) may be used, or a CDMA Alert with Information message or a CDMA Flash with Information may be used as a notification method for the completion of a single message transmission.

If no one talks in the call connection state, the terminals wait in idle state. The above process may be repeated at any time by any subscriber in the call group. Such a procedure does not affect existing mobile communication services, and all idle communication services may be provided in an idle state.

As described above, the method for providing a one-time voice call service according to an embodiment of the present invention may additionally provide a one-time call service while maintaining an existing mobile communication service.

3 is a signal flow diagram illustrating in detail a process for providing a one-time call service according to an exemplary embodiment of the present invention.

Referring to FIG. 3, first, when a caller requests a telephone call with a one-time call service providing apparatus, that is, a session managing apparatus using a calling terminal (step 301), the calling side exchange sends a call connection response to the calling terminal (step 303). Request the destination location information of the home exchange to the home location register (HLR) (step 305). For the called location information request from the calling exchange, the HLR identifies the called party exchange corresponding to the called location information and sends the confirmation information to the calling exchange (step 309).

Also optionally, the home location register (HLR) determines whether the caller is subscribed to the one-time calling service through the calling terminal identifier included in the called location information request signal (step 307). The HLR then transmits the one-time call service setting information to the calling exchange in response to the incoming location information request (step 311).

Steps 305 and 309 described above refer to a state in which the session managing device is wirelessly coupled to the mobile communication network. That is, the session management apparatus refers to a case in which the portable terminal has a mobile address or a dynamic address. In addition, step 305, step 307 and step 311 refers to a case in which the user of the calling terminal inputs the general subscriber's telephone number without dialing a specific telephone number of the session managing apparatus when requesting a telephone connection with the session managing apparatus. That is, in such a case, it is determined whether the home location register is a subscriber subscribed to the single call service from the user's originating terminal identifier. Therefore, when the user of the calling terminal requests a telephone connection with the session managing device coupled to the home exchange in the mobile communication network or the public communication network, steps 305 to 311 may be omitted.

In response to the call connection request from the originating terminal, the originating exchange determines the location of the session management device which is an intelligent peripheral device (IP), and then transmits a user call connection request signal to the home exchange or session management device through the mobile communication network. (Step 313). In step 315, a response to the user call connection request is received from the home exchange or the session managing device. Through the above process, a channel is established between the calling terminal and the calling exchange, where the channel set up here is set in step 303 (step 317), and a channel is established between the calling exchange and the session managing apparatus (step 319). In other words, a call path is established between the calling terminal and the session managing device.

The session managing device receives the one-time call message from the user of the calling terminal through the call path established with the calling terminal (step 321). The received one-time call message is stored in the storage device in the session managing device (step 323).

The session managing device extracts from the database a call group corresponding to the dialed terminal identifier or dialed telephone number obtained from the calling exchange (step 325). On the other hand, the session management device may create a new call group by sending out an appropriate announcement when there is no data stored for the call group or a new user.

The aforementioned call group refers to a set having two or more subscriber lists stored in a predetermined database of the session managing device in advance by the calling terminal subscriber through the subscriber database. The subscriber list in such a call group contains at least the subscriber's telephone number.

If the session management device then requests a telephone call with all subscribers in the talk group, the home exchange requests the destination location information to the home location register (HLR) to locate the at least one destination exchange (step 327). ). Then, a response signal for the called location information request is received from the HLR (step 329). This called location information request is performed for the called terminal of all subscribers in the talk group.

Having received the location information of at least one destination exchange from the home location register, the home exchange requests a call connection to each destination exchange (steps 331 and 339). A response signal for a call connection request is received from each destination exchange (step 333, step 341). Then, a call channel is established between the session management apparatus coupled to the home exchange and the called terminals coupled to each destination side exchange (step 335 and step 343).

The session managing apparatus transmits a single call message stored in the storage device to each called terminal, that is, subscriber terminal 1 and subscriber terminal 2, in a first-in, first-out (FIFO) manner through each established call path (step 1). 337, step 345). The one-time call message is transmitted by the session management device to each destination terminal regardless of the call connection between the originating terminal and the session management device. Through this process, the caller may transmit a single message to a plurality of called parties or make a call using the single message.

As such, in the method of providing the one-time call service of the present invention, when a plurality of subscribers register a group for the one-time call to the mobile communication network and one subscriber transmits the one-time voice, the method is delivered to all other subscribers by the session management system of the mobile communication network. The steps are as follows. In addition, the above process may be repeated at any time by any subscriber, with at least two subscribers in the call group maintaining the call path with the session managing device. This process is described in detail below.

4 is a signal flow diagram illustrating a process for providing a one-time call service according to this preferred embodiment of the present invention. 4 further illustrates that the present invention includes a voice call session management system using a timer.

Referring to FIG. 4, in a state in which a call path between an originating terminal and a session management device and a call path between a session management device and a destination terminal of two subscribers in a call group are set (steps 401 to 411), the session management device may be configured to determine which call path. Send a single call message input from one called terminal to the other called terminal or calling terminal in a first-in first-out manner so that all subscribers in the call group can make a call (steps 413 to 417; steps 425 to 429); Steps 437 to 441). The terminals of all subscribers in the call group maintain the standby state (steps 419, 421, 423; steps 431, 433, 435) except when transmitting or receiving voice signals.

In addition, when the call management device is connected to the calling terminal and at least one subscriber station in the call group, the session managing apparatus operates the timer (step 449). The timer restarts at predetermined time intervals and determines when all terminals in the talk group are in a standby or idle state (steps 443, 445, 447) for a set time (step 451). If all terminals are idle for the set time, the session managing device releases all call settings (steps 453, 455, 457).

That is, the session managing device determines that all of the subscribers in the call group have not communicated with each other during the one-time voice call service using the timer, and then releases the call as a whole. In this case, a criterion for determining the silence state of the call group may be based on a state in which all subscribers in the group release the pressing of a dedicated talk key of the terminal. In addition, as a criterion for determining the mute state of the call group, the session management system detects a voice signal of each subscriber and is based on the time when all the subscribers are muted. In this case, a method of transmitting the event from the terminal to the session management system uses a method of transmitting a tone through a voice channel or utilizing a message available in an existing mobile communication system.

5A and 5B are diagrams for describing in detail a process for providing a one-time call service according to this preferred embodiment of the present invention.

5A and 5B, the session management system initially stays in a standby state 501, and when any subscriber A presses a dedicated call key of the terminal or dials an assigned phone number, the call is transmitted through the mobile communication system. A connection request is received (step 503). The session management system accepts the call connection of subscriber A (step 505). In this step, since there is no connection with anyone yet, mute or prepared voice is transmitted (step 507). After creating a new set S, subscriber A is inserted (step 509).

After retrieving the subscriber list of the call group from subscriber A and the subscriber dialed number, call connection is attempted simultaneously for each subscriber (step 511). Start timer T (step 513). This timer is used to measure the time that subscribers in call group G are in a call connection and no one is talking.

The call state 515 of the session managing device is performed by the following procedure. First, when the subscriber B who attempts to connect in step 511 reaches the call connection state (step 517), the subscriber B is added to the set S (step 519), and the call connection is set up to enable mutual call with all the subscribers in the set S. (Step 521). While the call is in progress, the terminal does not release the call unless the user specifically manipulates it, and the release of the call is entirely driven by the session management system.

If the subscriber's call is exchanged while the call is in progress and the call is silenced, it is determined in step 525 and the timer is initialized (step 527). At this time, the event that the subscriber's call tone is exchanged and reaches the mute state is determined by the session management system as the time when all the subscribers are muted by detecting the voice signal of each subscriber (step 523, step 525). If the timer initialized in step 527 expires after the set time, all the subscribers included in the set S are released (step 529).

As another method, an event in which a subscriber's call tone is exchanged and reached a mute state may be transmitted to a session management system by the terminal at the time when the terminal releases the dedicated call key of the terminal or in a conventional mobile communication system. You can substitute the ones that are sent using the available messages. If the timer is notified of the elapsed time in step 527, the session management system may release the call of all subscribers included in the set S.

In this way, the voice call session management system using a timer is a variation of the system that provides a one-time voice call service, and any subscriber in the call group can talk without immediately releasing the call even when the caller ends. When continued for a period of time, the session management system releases the call as a whole to minimize confusion and waste of resources that can occur during frequent calls.

6 is a view for explaining an example of a one-time call service subscription procedure according to an embodiment of the present invention.

Referring to FIG. 6, when a mobile terminal user requests to subscribe to a one-time calling service according to the present invention (step 601), whether to subscribe to a service is stored in a subscriber database. The subscriber database then transmits service subscription information, including at least the mobile terminal identifier or assigned telephone number, provided to the home location register (HLR) provided when the mobile terminal user subscribes to the one-time calling service (step 603).

The home location register (HLR) sets up a one-time call service in the profile of the mobile terminal user based on the received service subscription information (step 605). In addition, the subscriber database transmits subscriber information of the mobile terminal user who applied for the one-time calling service according to the present invention to the session managing apparatus (step 607). The session managing device sets the one-time call code using the received subscriber information (step 609). The set one-time currency code corresponds to the currency group stored in the database.

As described above, the method for providing a one-time call service according to the present invention may set and register a call group in advance as a pre-operation for receiving a service. That is, the subscriber list in the call group may be input through a separate operator or registered by using voice complex frequency code (DTMF), wireless Internet, short message service, and wired Internet.

One subscriber in the call group may belong to several groups at the same time, in which a separate telephone number is assigned to each group.

As another method of setting up a call group in addition to the above method, as shown in FIG. 7, a member of the messenger 701 service provided in the Internet or the wireless Internet, for example, a service of automatically viewing a buddy list It can be used as a call group of.

On the other hand, in the above-described embodiment, the present invention has been described centering on the mobile communication network and the switch and the portable terminal included in the mobile communication network, but the present invention is not limited to such a configuration. For example, the present invention may include a communication network including a wired communication network, an intelligent network, the Internet network, or an integrated network thereof, and a switching system included in the communication network. The present invention also includes all wired or wireless communication terminals, computer terminals, and computer programs capable of making voice calls in addition to the mobile terminals 211, 213, 215. That is, the present invention includes all devices and systems capable of making a call connection request to a switching system in a communication network and at least outputting a voice or receiving a voice signal instead of a portable terminal, and an intangible computer program mounted on the device and the system. Can be.

Moreover, although the present invention has been described in terms of the session management apparatus coupled to the home exchange in the above embodiment, the present invention is not limited to such a configuration. For example, the session management device may be coupled to any switching system in the communication network.

The present invention is not limited to the above embodiments, and many variations are possible by those skilled in the art within the spirit of the present invention.

As described above, according to the present invention, the existing mobile communication system can be utilized as it is, and if necessary, a plurality of subscribers can call each other without having to press individual phone numbers, and do not occupy network resources while not making a call. It is possible to provide a communication service method and apparatus capable of making a long-term call without paying a call charge.

According to the present invention, it is possible to provide a communication service method and apparatus capable of making a low-cost call in an environment where two or more mobile phone users must exchange frequent and fragmentary voice calls with each other.                     

According to the present invention, the contents transmitted by one subscriber can be automatically delivered to all subscribers in the pre-registered call group.

According to the present invention, a session management system is used to first record a caller's one-time call sound in a storage device and simultaneously attempt to connect to another subscriber in a talk group, and when connected, the contents of the storage device are first-in-first-out. By transmitting to the terminal, the caller can make a call immediately regardless of the called party's response.

According to the present invention, by leaving the terminal in an idle state other than the time for transmitting or receiving a one-time call, the loss of network resources can be minimized and the existing mobile communication service-voice call-can be provided.

Claims (17)

In the mobile communication network including a calling party exchange (MSC) for managing at least one calling terminal and at least one called terminal (MSC) for managing a single call service in a session management device coupled to the calling exchange in a mobile communication network. In the method of providing, Receiving a first call connection request signal from an originating exchange, wherein the first call connection request signal includes a calling identifier corresponding to the calling terminal and an assigned telephone number, the calling terminal and the session managing device; To establish a first call path between; Receiving a one-time message from the calling terminal through the first call path; Storing the received one-time message in a storage device; Generating or extracting a call group corresponding to the calling identifier and the assigned telephone number from a subscriber database; Transmitting at least one second call connection request signal to the called side exchange managing the at least one called terminal corresponding to the subscriber in the call group, wherein the second call connection request signal is connected to the session management device and the To establish at least one second call path between the at least one destination terminal; And Transmitting the stored short-lived message in a first in, first out (FIFO) manner to the at least one called terminal through the second communication path; Single call service providing method comprising a. An originating exchange in a mobile communication network comprising a calling party exchange (MSC) managing at least one originating terminal, a called party exchange (MSC) managing at least one called terminal and a session management device coupled to the calling exchange. In the method of providing a one-time calling service through, Receiving a first call connection request signal from an originating terminal, wherein the first call connection request signal includes a calling identifier corresponding to the calling terminal and an assigned telephone number; Transmitting the first call connection request signal to the session managing device corresponding to the assigned telephone number, wherein the first call connecting request is for establishing a first call path between the calling terminal and the session managing device. Will; Receiving at least one second call connection request signal from the session managing device, wherein the second call connection request signal includes at least one called identifier corresponding to at least one called terminal; Transmitting at least one querying signal to query a location of the at least one called terminal to a home location register (HLR) in the mobile communication network; And Transmitting a second call connection request signal to a called side exchange corresponding to at least one called location information received from the home location register, wherein a second call connection request signal is transmitted to the session management device and the at least one incoming call; To establish at least one second call path between the terminals; Including but not limited to: The session managing device receives a one-time message from the calling terminal, stores the received one-time message in a storage device, and generates a call group including at least one called terminal corresponding to the calling identifier and the assigned telephone number. Extracting from a subscriber database and transmitting the stored short-lived message in a first in, first out (FIFO) manner to the at least one destination terminal in the call group through the second call path; Single call service providing method characterized in that. The method according to claim 1 or 2, The one-time message input from the originating terminal or the destination terminal of the subscriber in the call group in the state that the first and the second call path is established is transmitted to the remaining terminals in a first-in first-out (FIFO) method providing method . The method of claim 3, Determining a mute state of the calling terminal or the called terminal, wherein the mute state refers to a state in which there is no short-term message input from the calling terminal or the called terminal for a predetermined time; The one-time call service providing method further comprising a. The method according to claim 1 or 2, At least two one-time messages inputted from the calling terminal or the called terminal of the subscriber in the call group with the first and second call paths being transmitted sequentially, overlapping or simultaneously to the remaining terminals Single call service providing method characterized in that. The method of claim 5, Determining a mute state of the calling terminal or the called terminal, wherein the mute state refers to a state in which there is no short-term message input from the calling terminal or the called terminal for a predetermined time; The one-time call service providing method further comprising a. The method according to claim 1 or 2, And the call group is registered in a subscriber database using dual tone multi-frequency (DTMF), wireless internet, short message service, and wired internet. The method according to claim 1 or 2, The call group is registered in the subscriber database using members of messenger services used in wired and wireless Internet. Single call service providing method characterized in that. delete The method according to claim 1 or 2, And the subscribers in the call group are simultaneously included in at least one second call group. The method according to claim 1 or 2, Announcing a single message transmission state to the calling terminal when the second call path is established. The one-time call service providing method further comprising a. The method of claim 11, And the notification is performed through at least one of a short message service (SMS), a CDA Alert with Information, and a CDD Flash with Information. The method according to claim 1 or 2, The one-time message is all delivered to the called terminal through the second channel regardless of the release of the call to the first channel by the calling terminal. Single call service providing method characterized in that. The method according to claim 1 or 2, Notifying the calling terminal of the completion of the transmission of the one-time message whenever the transmission of the one-time message to the at least one called terminal is completed. The one-time call service providing method further comprising a. Session management for providing a single call service coupled to an originating exchange in a mobile communication network including an originating exchange (MSC) managing at least one originating terminal and a called side exchange (MSC) managing at least one called terminal. In the apparatus, Means for receiving a first call connection request signal from an originating exchange, wherein the first call connection request signal includes a calling identifier corresponding to the calling terminal and an assigned telephone number, and the calling terminal and the session managing device. To establish a first call path between; Means for receiving a one-time message from the originating terminal via the first call path; Means for storing the received one-time message in a storage device; Means for generating or extracting from the subscriber database a call group corresponding to the calling identifier and the assigned telephone number; Means for transmitting at least one second call connection request signal to the called side exchange managing the at least one called terminal corresponding to the subscriber in the call group, wherein the second call connection request signal is connected to the session management device and the To establish at least one second call path between the at least one destination terminal; And Means for transmitting the stored one-time message to the at least one called terminal through the second communication path in a first in, first out (FIFO) manner; Session management device comprising a. The method of claim 15, And a single message inputted from the calling terminal or the called terminal of the subscriber in the call group in the state where the first and second call paths are established is transmitted to the remaining terminals in a first-in first-out (FIFO) manner. The method of claim 16, Means for determining a silent state of the calling terminal or the called terminal, wherein the silent state refers to a state in which there is no one-time message input from the calling terminal or the called terminal for a predetermined time. .

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