KR100810221B1 - Method for connecting a caller to vms system in a mobile communication system - Google Patents

Abstract

In a mobile communication network including a mobile switching center (MSC), a home location register (HLR), a visitor location register (VLR), and a voice mail system (VMS) connected to the VLR, the calling party is configured for another subscriber. A method is disclosed for connecting the calling party subscriber to the VMS in order to be able to record voice to the VMS. The method includes receiving a number input from the calling party at the HLR through the MSC, and when the received number is the same as a preset number, calling party number at the HLR through the MSC. VMS connection information including the process of requesting to the subscriber and the number of the called party to be recorded in the HLR when the number of the called party to be recorded from the calling party subscriber is received through the MSC in response to the request. Transmitting a resource to the MSC via the HLR in response to receiving the VMS connection information from the called party VLR, and transmitting the resource to the MSC through the HLR, It involves the process of establishing a call.

Voicemail service (VMS), access, VMS connection information

Description

How to connect to voice mail service system of mobile communication network {METHOD FOR CONNECTING A CALLER TO VMS SYSTEM IN A MOBILE COMMUNICATION SYSTEM}             

1 is a view showing the configuration of a mobile communication network to which the present invention is applied.

2 is a diagram illustrating a processing flow of a voicemail service system connection operation according to an embodiment of the present invention.

The present invention relates to a mobile communication system, and more particularly, to a method for connecting a call from a calling party subscriber to a VMS system in a mobile communication system providing a voice mail service (VMS).

Mobile communication systems such as Code Division Multiple Access (CDMA) and Personal Communication Services (PCS) provide a variety of functions that are convenient for subscribers in the typical form of providing only a voice call function to subscribers. It is developing. A representative example of this is the Voice Mail Service.

Voice Mailing Service (VMS) provided by mobile service providers currently does not handle normal incoming calls, such as when the called party is busy, does not answer, or the power is turned off. In other words, when the called party does not want to answer the call, it is provided in the form that the incoming call is unconditionally converted into the voicemail box at his will. As described above, in order to record the voicemail box of the called-party mobile subscriber in the mobile communication system, the called-party subscriber may be in a state where the call is impossible. Therefore, it is impossible for the calling party to make only voice recording regardless of the status of the called party.

To compensate for this, some mobile network operators use a separate supplementary device (for example, an automatic response system (ARS)) to connect a call to the supplementary device when the calling party dials the representative number. When the calling party enters the called party's number according to the announcement broadcast from the additional equipment while the call is connected, it connects to the voicemail of the called party. As such, some mobile network operators may provide a service that can directly access a voice mail box. In this case, however, a separate supplementary equipment such as ARS must be provided so that the calling party can make a call to the ARS and connect to the VMS system through this ARS. That is, if there is no additional equipment such as the ARS, in the existing mobile communication network, even if the calling party does not want a direct voice call with the called party and wants to record only in the voicemail of the called party, Unable to access the voicemail of the called party's subscriber.

Accordingly, an object of the present invention is to provide a method for connecting a calling party subscriber to a VMS system so that a message can be left in a voicemail box of a called party subscriber without the need of a separate device such as ARS in a mobile communication network providing a voice mail service (VMS). Is in.

Another object of the present invention is to provide a method for connecting a calling party subscriber to a VMS system so that a called party subscriber can leave a message in a voicemail box of the called party subscriber even in a mobile communication network providing a voice mail service (VMS). In providing.

The present invention for achieving these objects in a mobile communication network comprising a mobile switching center (MSC), a home location register (HLR), a visitor location register (VLR), and a voice mail system (VMS) connected to the VLR. In order to enable a calling party to record voice for another subscriber in the VMS, a method of connecting the calling party to the VMS is proposed. The method includes receiving a number input from the calling party at the HLR through the MSC, and when the received number is the same as a preset number, calling party number at the HLR through the MSC. VMS connection information including the process of requesting to the subscriber and the number of the called party to be recorded in the HLR when the number of the called party to be recorded from the calling party subscriber is received through the MSC in response to the request. Transmitting a resource to the MSC through the HLR in response to receiving the VMS connection information from the called party VLR, and transmitting the resource to the MSC through the HLR with the delivered resource. It involves the process of establishing a call. The present invention enables a service when the caller does not want to talk directly with the called mobile subscriber but only records in the voice mailbox by directly accessing the called subscriber's voice mailbox in the existing mobile communication network without any additional equipment.

The foregoing has outlined rather broadly the features and technical advantages of the present invention in order that those skilled in the art may better understand the detailed description of the invention that follows.

Additional features and advantages of the invention will be described hereinafter which form the subject of the claims of the invention. Those skilled in the art should recognize that the disclosed concepts and specific embodiments of the invention may be readily used as a basis for modifying or designing other structures for achieving the same purposes of the present invention. Those skilled in the art should also recognize that structures equivalent to the invention do not depart from the spirit and scope of the broadest form of the invention.

DETAILED DESCRIPTION A detailed description of preferred embodiments of the present invention will now be described with reference to the accompanying drawings. It should be noted that reference numerals and like elements among the drawings are denoted by the same reference numerals and symbols as much as possible even though they are shown in different drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a view showing the configuration of a mobile communication network to which the present invention is applied.

Referring to FIG. 1, a mobile communication network includes a home location register (HLR) 80, a mobile switching center (MSC) 70, a base station controller (BSC) 64, a base station (BTS) Transceiver Subsystem 62 and Mobile Station (MS) 50 are included. In one Public Land Mobile Network (PLMN), a plurality of HLRs and MSCs interwork with each other to perform subscriber management and call exchange functions. For example, a plurality of MSC 70 may be connected to one HLR 80 (MSC0 70a and MSC1 70b in FIG. 1), and a plurality of BSC 64 may be connected to one MSC 70 (for example, BSC00 to MSC0 70a). 64a, BSC01 64b), and a plurality of BTSs 62 may be connected to one BSC 64 (for example, BTS000 62a and BTS001 62b to BSC00 64a). Typically, the BSC 64 and the BTS 62 are collectively referred to as a base station subsystem (BSS) or a base station (BS) 60. The MSC1 70b is connected to a subscriber VMS system 90 for voicemail service.

In more detail, the MSC 70 is a packet through a BSC 64, a public switch telephone network (PSTN) (not shown) and a gateway (G / W) (not shown). Controls access to a Packet Serving Data Network (PSDN). The BSC 64 performs radio link, radio link control and handoff functions. The BTS 62, together with the MS 50, performs the functions of constructing a radio channel and managing radio resources. The HLR 80 performs subscriber location registration. Visitor Location Registers (VLRs) 72a and 72b, which are configured to correspond to each of the MSC 70s, temporarily store information of the MS 50 existing in the area covered by the corresponding MSCs (ie, MSC0 70a and MSC1 70b). Database. If the MS 50 leaves other areas, the stored information is deleted.

In the above mobile communication network, when a call is established, the corresponding MS 50 and BTS 62 allocate a radio channel, and the BTS 62 and the BSC 64, the BSC 64 and the MSC 70, the MSC 70 and the own network or the external network (for example, PSTN) Allocate a channel and connect them to make a call.

Meanwhile, according to an embodiment of the present invention, a preset number for direct connection with the VMS 90 is allocated and managed inside the HLR 80. When a LOCREQ (LocationRequest) message is received with the set number, the HLR 80 transmits the information to the MSC (eg, MSC0 70a) that has transmitted the LOCREQ message, 'information broadcast for entering a number' and 'digits to be collected.' Gives RUIDIR (RemoteUserInteractionDirective) message including '. In addition, the HLR 80 is composed of software that delivers incoming information that can be connected to the VMS 90 for the number received in the LOCREQ response when the response to the RUIDIR message is received. In response to the RUIDIR message from the HLR, the MSC 70a provides an announcement to the calling party (eg, MS 50) such as 'Enter the called number to record in the voice mailbox'.

2 is a diagram illustrating a processing flow of a voice mail service system access operation according to an embodiment of the present invention. This processing flow will be described as an example applied to the mobile communication network as shown in FIG. In FIG. 1, it is assumed that MSC 70a is an originating mobile exchange and MSC 70b is a called mobile exchange, and VMS system 90 is connected to VLR 70b connected to MSC 70b. The calling party subscriber may be a mobile subscriber such as MS 50 of FIG. 1 or a wired subscriber connected through a public telephone network. In the following, the present invention will be described assuming that the calling party is a mobile subscriber and the called party is also a mobile subscriber, but it should be noted that the present invention is not limited thereto.

The VMS system access operation according to the embodiment of the present invention is performed in the following procedure. This will be described with reference to FIGS. 1 and 2.

(1) The HLR 80 manages a preset number for VMS recording to a mobile subscriber, and does not assign an actual subscriber to the set number. For example, 0000 of each station number may be assigned as a number for VMS recording. For example, 016-200-0000 may be set as a number for VMS recording.

(2) When the mobile subscriber 50 dials the set number, the dialed set number is received by the MSC 70a or the gateway MSC (step 101).

(3) The MSC 70a (or gateway MSC) forwards the LOCREQ message including the setting number to the HLR 80 in which the received setting number is registered in response to the dialed setting number being received (step 102).

(4) Upon receiving the LOCREQ message, the HLR 80 checks whether the set number included in the LOCREQ message is a number for VMS recording (step 103). If it is determined that the set number included in the LOCREQ message is a number for VMS recording, the HLR 80 transmits a RUIDIR message to the MSC 70a (step 104). At this time, the RUIDIR message includes ANNLIST information and DCC information. The ANNLIST (AnnouncementList) information is an announcement code for 'enter the called number to be recorded in the voice mailbox'. Since the announcement code does not exist in the standard announcement, the custom announcement code promised with MSC 70a is delivered in advance. DCC (DigitCollectionControl) information is information about a digit to be collected in MSC 70a.

(5) When the RUIDIR message is received, the MSC 70a sends an announcement ('Enter the caller's number to be recorded in the voice mailbox') to the calling party subscriber 50 corresponding to the received announcement code (step 105). Dual Tone Multi-Frequency) is connected to collect the digits pressed by the calling subscriber (step 106).

(6) When the called number is received in accordance with the information on the digit to be collected (DigitCollecionControl), the MSC 70a sends a ruidir message to the HLR 80 (step 107). At this time, the digit collected by the calling party is included in the ruidir message and transmitted.

(7) In response to receiving the ruidir message, the HLR 80 searches the subscriber database (D / B: database) in the HLR with the digits included in the ruidir message (step 108), and the corresponding VMS system 90 including the VMS connection information. The ROUTREQ message is transmitted to the connected VLR 72b (step 109). In response to receiving the ROUTREQ message, the VLR 72b forwards a routreq message including a Temporary Local Directory Number (TLDN), which is a resource for call setup, to the HLR 80 (step 110). In response to receiving the routreq message, the HLR 80 forwards the locreq message including the TLDN to the MSC 70a (step 111).

(8) MSC 70a establishes a call with the TLDN included in the received locreq message (step 112). That is, a call between the calling MSC 70a and the called MSC 70b is established. At this time, since the TLDN assigned by the destination MSC 70b is for VMS access, connection to the VMS system 90 is also made (steps 113 and 114). That is, the call is connected to the VMS system 90, so that the calling party 50 can record the voicemail of the called party according to the VMS voice guidance (step 115).

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the present invention provides an advantage of allowing a user to record a message in a voicemail box of a called party subscriber regardless of a callable state of a called party subscriber only by a system currently existing in a mobile communication network without any additional equipment such as ARS. have.

Claims (3)

In the mobile switching network (MSC), home location register (HLR), visitor location register (VLR), and a mobile communication network connected to the VLR, a method for connecting to a voice mail service system, Receiving a number input from a calling party subscriber at the HLR through the MSC; Requesting, by the HLR, a called party subscriber number through the MSC to the calling party subscriber when the received number is equal to a preset number; In response to the request, when the called party subscriber number to be recorded from the calling party subscriber is received through the MSC, the HLR delivers voicemail service connection information including the called party subscriber number to be recorded to the called party VLR. and, Transmitting a resource to the MSC through the HLR in response to receiving the voice mail service connection information from the called party VLR; And establishing a call from the MSC to the voicemail service as the transferred resource. The method of claim 1, And a method for accessing a voice mailbox service system which does not assign an actual subscriber to the preset number. The method of claim 1, The process of requesting the called party subscriber number from the HLR to the calling party subscriber through the MSC is The voice mail service system access method comprising a request information including the announcement code for entering the called party number, and the digits to be collected by the MSC.

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