KR100321722B1 - Secondary call connection method in personal number service - Google Patents

Abstract

PURPOSE: A method for connection a secondary termination of a personal number service is provided to have a secondary termination function for reducing a service incomplete caused by the failure of a primary termination, and use a voice message service in the personal number service. CONSTITUTION: If a call request is received from a caller for requesting origination to a personal number service subscriber(21), an origination terminal station requests a personal number service to an SSP(Service Switching Point)(22-24). The SSP requests an origination number to the origination terminal station(25), receives the origination number(26), and transmits origination information including a service identification number, a subscriber personal number, the origination number, and an origination class to an SCP(Service Control Point) for obtaining information for actual termination to the personal number service subscriber(27). The SCP retrieves a database about the corresponding service subscriber on the basis of origination information, and provides termination information including the first and second termination numbers to be actually terminated, a guidance broadcasting kind, billing information, and automatic call control information in congestion to the SSP(33). The SSP starts a relay routing for actual termination on the basis of termination information(37). The SSP attempts call connection to the first termination number according to the request of the caller. If the first termination number is in a normal state, the SSP sets the connection of a personal number service call between the caller and the first termination side. If the first termination side is in an abnormal state, the SSP transmits a recovery message to the first termination side for requesting the recovery of a connection state(42). When a primary termination conversion fails, the SSP attempts the call connection to the second termination number according to the request of the caller, and sets the reconnection of the personal number service call between the second termination side corresponding to the second termination number and the caller(46).

Description

Personal number service secondary incoming connection method {SECONDARY CALL CONNECTION METHOD IN PERSONAL NUMBER SERVICE}

The present invention relates to a personal number service, and more particularly, to reduce the cause of service incompleteness due to a first incoming failure (no answer, busy) when a telephone user in a public network attempts to connect to a personal number service subscriber. Personal number service Second incoming call connection method.

Personal number service is an intelligent network service using a public telecommunication network. It uses a personal number rather than a general line number (PSTN network number) to allow users to receive incoming calls regardless of the type and location of the communication terminal. to be

The service subscriber registers his mobile location in the network by using his / her unique number assigned to him, that is, his / her personal number and his / her password, so that the mobile subscriber can receive calls from him / her on the mobile network. Mobility can be guaranteed.

Current public switched telephone networks (PSTNs) use physically fixed line numbers as a means of identifying service users. Therefore, when moving the location it is possible to communicate only if the called party has changed the called party.

However, the personal number service uses a logical personal number irrelevant to the physical line as an identification means of the service subscriber. Therefore, if the caller attempts to dial the personal number of the service subscriber and the call is made, the personal number is translated by the network and the incoming call is received. Therefore, regardless of the location change or address transfer of the service subscriber, the caller uses the personal number to connect with the service subscriber. It allows you to always communicate. In addition, in the mobile communication network as well as a wired network, such as a public telephone network, by registering the location with a mobile phone or a wireless pager can receive a call from the desired terminal.

However, there is a problem that a service may not be completed due to a failure of the first incoming call such as no answer or a call when the telephone user in the public network attempts to connect to the personal number service subscriber.

The personal number service is developed to solve the inconvenience that ordinary phone subscribers are not guaranteed of mobility in the public network by using fixed PSTN number, so that the logical personal number assigned to the service subscriber is located wherever the subscriber is. By using the location registration of the number of communication terminals that can be received at the current location using the limited mobility within the wired network. In addition, when there is no terminal capable of receiving a call at the current location or in a situation where it is difficult to make a call, the connection with the caller is further impossible.

The incomplete rate of service is increasing due to the increase in the probability that ordinary telephone users fail to receive the incoming call due to the busy or absence of the phone, which leads to the re-attempt of the same issue, as well as the waste of unnecessary resources in the national exchange system. It is reducing the efficiency of the service.

In the real number service, the incoming call is limited to one call, so the quality of service is inevitable due to this cause, and the most important function of any service is the successful completion of the service, and the solution to solve this problem is the It is required.

The present invention has been proposed to meet the above requirements, and reduces the cause of service incomplete due to the first incoming failure (no answer, busy) when the telephone user in the public network attempts to connect to the personal number service subscriber. The purpose of the present invention is to provide a secondary number connection method for personal number service, which is equipped with a secondary incoming function to enable the user and improves convenience by enabling a voice message service in the personal number service.

1 is an exemplary configuration of a personal number service secondary incoming connection system to which the present invention is applied.

Figure 2 is a flow diagram of one embodiment for a personal number service secondary incoming connection method according to the present invention.

3 is a detailed flowchart illustrating a process of processing a personal number service secondary incoming connection method by an intelligent network service exchanger and an intelligent network service controller according to the present invention.

* Explanation of symbols on the main parts of the drawing

1: calling subscriber 2: calling terminal exchange

3: intelligent network service exchanger 4: relay line matching unit

5: Application service element and question and answer processing function

6: intelligent network service controller (SCP)

7: terminating station exchange 8: terminating subscriber

9: mobile network switch 10: mobile phone

11: wireless pager

12: ISUP (ISDN User Part) message processing unit

13: Intelligent Peripheral (IP)

In order to achieve the above object, the present invention relates to a personal number service secondary incoming connection method, wherein, when a call request is received from the originator to the personal number service subscriber, a personal number service is provided to the intelligent network service exchange means at the calling station. Requesting a first step; In response to the request for the personal number service, the intelligent network service exchange means requests and receives the calling number from the calling station, and then receives the service identification number and the subscriber as the intelligent network service control means to obtain information for the actual call to the personal number service subscriber. A second step of transmitting outgoing information including an individual number, outgoing number, and outgoing grade; Based on the calling information, the intelligent network service control unit searches the database for the corresponding service subscriber, and then the first and second called numbers to be actually received, the type of announcement broadcast that the caller will listen to, billing information, and automatic call during congestion. A third step of providing incoming information including control information to the intelligent network service switching means; A fourth step of starting, by the service switching means, the relay routing for the actual incoming based on the incoming information; In response to the caller's request, the intelligent network service exchange means attempts to connect the call to the first called number, and connects the personal number service call between the caller and the first called party when the first called number is in a normal state. A fifth step of transmitting a recovery message for requesting recovery of a connection state to the first called party when the first called party is in an abnormal state (non-response state over a predetermined time or busy); And when the first call forwarding fails, attempts to connect a call to the second called number according to the caller's request, and fails to perform the first call forwarding between the second called party and the caller corresponding to the second called number. And a sixth step of reconnecting the service call.

In addition, the present invention, when the first and second called party is an abnormal state (non-response state over a predetermined time, busy) and the service is terminated in an incomplete state, the voice message from the caller to guide to store the voice message And receiving and storing the seventh step.

In addition, the present invention, after performing the second step, when the incoming call registration function registered in the called party, the intelligent network service control means collects and authenticates the authorization number from the sender through the intelligent network service exchange means, and authenticated And further comprising an eighth step that passes to the third step upon success.

On the other hand, if the registered subscriber number is difficult to call the service subscriber, if the user registers the location in the voice mailbox, which is an intelligent peripheral device used for intelligent network service, the user can leave a desired message, and the subscriber can store such a stored user message. You can search for. The voicemail box also has the function of message retrieval and automatic call generation, so that if there is a message to be delivered to the service subscriber every time, the subscriber who has the message gets the current location information of the subscriber from the intelligent network service controller. It delivers a message that is generated and stored.

If the registered called number is busy or unanswered, it may be registered by re-designating a second called number that is desired to be received in case the first incoming call is difficult. At this time, if the called party is unresponsive and connects to the secondary called number, the waiting time for retrying routing is similar or slightly shortened by referring to the non-response waiting timer of the telephone message delivery service that is commercialized by KT. .

In the secondary numbering method of the personal number service according to the present invention, a call for requesting a connection with a personal number service subscriber is generated from an arbitrary sender in the public network and inputted to an intelligent network service switching point (SSP) through an originating exchange. Incoming information is requested by an intelligent network service controller (SCP) that interworks with an intelligent network service exchanger and a No.7 signaling network. After receiving the incoming information of the service subscriber from the intelligent network service controller, the intelligent network service exchanger attempts routing for incoming connection.In this case, the incoming terminal includes the mobile network and the international area, and if the incoming connection is difficult, the subscriber registers. It can also be called by an intelligent peripheral. In addition, when the first incoming connection fails during a call or no response, the incoming call from the SCP is attempted to connect to the second incoming call.

According to the present invention, it is possible to build a comprehensive service network incorporating wired and wireless systems by extending the area of a terminal capable of receiving a call to a mobile communication network including a mobile telephone, a pager, and the like as well as an international region.

In order to receive the message from the caller even when the incoming call is difficult, it is possible to use another voice message service in the personal number intelligent network service by interworking the intelligent mailbox service system with the intelligent network service system.

Personal Number Service The secondary incoming connection function improves the quality of service and minimizes the use of resources in the exchange system by minimizing the incomplete rate of service due to external causes such as busy and no answer, and expanding the call connection opportunity between the caller and the called party. Increase.

As described above, the present invention is used to increase the completion rate of incoming calls in the personal number service, and is provided as an additional function that can improve the quality of the service. In addition, it can be provided as an additional service function in all incoming call-related special services (such as incoming call transfer, instant call and call waiting, etc.) and other intelligent network services such as virtual private network, incoming call charges, and information receiving service that are used in the national exchange system. have.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary configuration of a personal number service secondary incoming connection system to which the present invention is applied.

As shown in FIG. 1, the personal number service secondary incoming connection system to which the present invention is applied includes the general subscriber (1), the calling terminal switch (2) to which the general telephone subscriber (1) belongs, and the intelligent network service switch (3). ), Intelligent network service controller (6), terminating station switching center (7), terminating subscriber (8), intelligent peripheral device (13), and mobile network switch (9).

The environment for providing the intelligent network service is to recognize the calling terminal switch (2) to which the general telephone subscriber (1) belongs and the service call generated from them. Intelligent Network Service Switching Point (SSP) (3), which requests incoming information to the Service Control Point (SCP) 6 and performs relay routing processing according to the incoming destination information, and from the SSP (3). It consists of an intelligent network service controller (6) that performs the function of searching the service subscriber database for the received personal number and delivering the announcement, billing, and incoming information to the SSP (3). Can be.

In order to enable voice message delivery from the service user even when there is no communication terminal capable of receiving a call at the current location or a call is not available, the SSP (3) of the SSP (3) It interworks with the ISUP message processing unit 12.

Now, look at the function and configuration of the above components.

The calling station switching center 2 collects called number information of the personal number service call from the service user 1 and relays it to the SSP 3.

The intelligent network service exchanger (3) recognizes that a call input from any end station is a personal number service call through a relay line matching section (4), which is in charge of R2 signal processing and No.7 ISUP message processing, and recognizes that the call is a private number service call. 3) Collect the calling number from the calling station 1 to generate the billing data within. If necessary, the personal number service subscriber can change his or her profile, that is, register the phone number where he is currently located, register the second called number, use the voicemail box, password and permission number (receive the caller with his / her personal number. Additional information may be collected as a result of changes in the number (s) that determine whether to allow.

The SSP (3) receives the incoming information to the intelligent network service controller (6) having a service profile subscriber database to obtain the information for the actual incoming to the personal number service subscriber with such collected personal number, calling number, calling grade, etc. It will send a query message asking for.

Since the intelligent network service exchanger 3 and the intelligent network service controller 6 interoperate with the No.7 signal network, the personal number information collected from the calling station 1 is configured in the No.7 signal form, and is connected to the SCP (6). In order to perform the question-and-answer function, the relevant function is processed through the question-and-answer function management unit 5 and the application service element 5 independently existing for each intelligent network service.

The intelligent network service controller 6 searches the database for the subscriber by using the personal number information input from the SSP 3, and then the first and second telephone numbers to be actually received, the type of announcement that the service user will listen to, Incoming information such as billing type is provided to the SSP 3. As a result, all data necessary for the first level personal number service is transmitted and received, and the SSP 3 starts relay routing for the actual incoming with the incoming information received from the SCP 6. When a call requesting an incoming call is inputted to the destination terminal switching center 7 and the incoming call state is busy, a service connection of the calling party is made. When the personal number service subscriber has registered his current location telephone number as a mobile communication terminal, the SSP (3) is relayed to the mobile switching center (9) through the E1 / T1 relay line, and thus the mobile telephone (10) or the pager (11). Calls can also be received. At this time, if the incoming subscriber state is not available (no answer, busy), the SSP (3) detects this and attempts to reroute for the second incoming by using the second routing information received from SCP (6). do. At this time, if there is a call, the called station exchange 7 sends an R2 signal or a No. The signal is notified to the SSP 3 by the ISUP release message with a 7 signal, and the detection of the non-response is regarded as the non-response when there is no response until the end of this timer by driving a specific timer for a certain time in the SSP 3. . However, in the case where the incoming call is impossible even in the second incoming call, incomplete processing is performed. In the case of the second non-response, the final incoming call is normally performed by driving a normal non-response wait timer (for example, 2-3 minutes).

If there is no terminal to which a service subscriber can receive or a call is impossible, interworking is performed through the ISUP message processing unit 12 of the SSP 3 so that the service user can store a voice message to the intelligent peripheral device 13. The intelligent peripheral device 13 allows the subscriber to use the mailbox, and receives the personal number and the originating number to enable the service subscriber to search for the message stored in his or her mailbox, which is the No.7 ISUP head address message. It is delivered through (IAM: Initial Address Message). A personal number for selecting a mailbox is displayed in the first called number field of the first address message, and a routing number and a calling number sent to the intelligent peripheral device 13 are sent in one message at a time, thereby making a quick connection of the service.

Figure 2 is a flow diagram of one embodiment for a personal number service secondary incoming connection method according to the present invention.

In the personal number service secondary incoming connection method according to the present invention, after the user of the service belonging to any calling station picks up the handset to send to the personal number service subscriber (21), it checks the dial tone transmitted from the calling station (22), This is accomplished by entering a Service Access Code (SAC) and a Private Telephone Number (PTN) (23).

When the calling station receives all the numbers, it routes the call to the SSP (24). At this time, when the SSP detects that the call is a request for personal number service, it first requests the calling party number from the calling party (25), and the calling party reports the calling number (26).

Subsequently, the SSP sends a message containing the collected information (SAC, personal number, calling number, calling grade, etc.) to the SCP (27) to inquire further processing procedures for the call. Then, after receiving the message, SCP requests the permission number when the call cannot be provided for other reasons, such as if the call is restricted or an unregistered personal number (28), and the SSP sends the announcement to the user in each case. (30) to transmit the call status and billing information to the calling party (29), and if the individual number subscriber has activated the selective call permitting function, the SSP may perform a mutual procedure (information broadcast) with the service user. Collect license numbers as many as the number of digits needed (31, 32). If the license number is not required, steps 28 to 32 are omitted.

Next, SCP transmits the primary and secondary actual called number, billing information, type of announcement, and automatic call control information during congestion to the SSP as a result of the provided command (33). Is sent back to the originating station (34).

When the SSP receives a call request guide from SCP, the SSP guides the user to the billing information of the corresponding call through the announcement and selects whether to continue the call (35). This is to ensure that users are informed about the charges to be charged as the service destination area extends not only to the mobile network but also to the international area, and to select whether or not to make a call. At this time, if the service user wants to continue the call by pressing the '#', if not, the call is terminated by the user abandonment by dropping the handset (36).

If the service user wants to continue the call, the SSP connects the call to the called party using the primary routing information (37), and the called station exchange sends a charging signal to the SSP (38). Then, the called party sends a call signal (39) to notify that the call has occurred, and also sends a call tone to the service user (40) to inform the progress of the current call. At this time, if the called party is busy, the service call is connected at the primary by sending a response signal from the called exchange. Otherwise, the timer is driven (41). If the unanswered state lasts for a certain time or the called party is busy, Recognizing it is abnormal, the SSP sends a recovery message to the called party to recover the called party's connection status to the primary called (42).

If the first incoming call fails, the SSP announces to the service user that the call is directed to the second called number (43), and informs the user of the billing information corresponding to the second incoming call through the announcement to continue the call. (44). At this time, if the service user wants to continue the call, the call is terminated by pressing the '#' and, if not, hanging down the handset (45).

On the other hand, when the service user wants to continue the call, the SSP attempts routing for call connection to the called party once again using the second incoming information (46). At this time, if the routing is successful, the destination terminal exchange reports the status and billing information of the called party to the SSP (47), and if the called party is busy, sends a call signal to the called party (48), and sends the called party to the called user. Connect the call echo to indicate that is being called (49).

Finally, when the last called party responds (50), the response signal is sent (51) to the calling station (52) to make a call between the user and the called party (53) and the service is terminated.

In the above, when the called party is in an abnormal state even in the second incoming call, the service is terminated in an incomplete state.

3 is a detailed flowchart illustrating a process of processing a personal number service secondary incoming connection method in an intelligent network service exchanger and an intelligent network service controller according to the present invention.

If the caller calls the personal number service subscriber while the service is in operation (61), the calling station exchange routes the service call to the SSP (62). At this time, the SSP recognizes the personal number service call and constructs a No. 7 signaling message to be sent to the SCP by collecting the calling number and calling grade from the calling station switching center (63). The No. configured through the intelligent network application service element and the question and answer processing function application unit. 7 Send the message in the form of command provision (64).

If the subscriber to the personal number service has registered the incoming call permission function (65), the SSP connects the announcement requesting the caller to input the permission number, and if the permission number is authenticated, the service subsequent processing is performed. If the service is terminated.

Subsequently, after searching the database of the current personal number service subscriber, SCP constructs the subscriber's incoming information into No.7 signaling message (66) and transmits it to the SSP in the form of a success response to command provision (67). Then, the SSP analyzes the incoming information after receiving the success response and connects the called area guide indicating the charging contents and the call availability input announcement (68).

On the other hand, if the caller wants to call (69), the first attempt to route using the incoming information (70), otherwise terminates the service. At this time, if the first routing is successful and the connection is made to the called terminal exchange, and the called subscriber is in a normal state during non-calling, the called terminal exchange sends a call signal to both the calling party and the called party, and the SSP checks whether the current call is not answered. In response to the response waiting timer for the second incoming call 72. At this time, if the called party responds before the timer expires (73), the calling and receiving subscribers are connected (74) to make a call and the service is terminated.

If the called party does not answer until the timer expires (73) or if the call cannot be connected to the busy state (71), the SSP recognizes this and checks whether the second incoming information is registered (75).

If there is no registered second incoming information, the service is terminated, but if present, it connects the destination area guide and call availability input request broadcast for the second incoming call once again (76). At this time, if the user does not want to call (77), the service is terminated, otherwise (77) attempts a second routing (78) to check whether the incoming state is normal (79) and again if the service is abnormal Incomplete processing, even if normal during inactivity, wait for the subscriber to answer without running a specific response waiting timer for checking the non-response status, and when the called party answers, the call is completed between the called party and the called party (80). do.

As described above, the secondary call connection function of the personal number service according to the present invention improves the quality of the service by minimizing the incompleteness of the service due to external causes, and expands the call connection opportunity between the caller and the called party. You can double your efficiency.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the art without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

As described above, the present invention, unlike general telephone users, minimizes the incompleteness of the service caused by causes such as reception failure due to the use or absence of the telephone and increases the quality of service by increasing the opportunity for call connection between the caller and the called party. There is an effect that can be improved. In addition, there is an effect that can greatly improve the efficiency of the use of resources in the switching system by reducing unnecessary resources in the switching system wasted by the retry of the same call due to the reception failure.

Claims (7)

In the personal number service secondary incoming connection method, A first step of requesting a personal number service from an originating station to an intelligent network service exchange means when receiving a call request requesting an origination from a caller to a personal number service subscriber; In response to the request for the personal number service, the intelligent network service exchange means requests and receives the calling number from the calling station, and then receives the service identification number and the subscriber as the intelligent network service control means to obtain information for the actual call to the personal number service subscriber. A second step of transmitting outgoing information including an individual number, outgoing number, and outgoing grade; Based on the calling information, the intelligent network service control unit searches the database for the corresponding service subscriber, and then the first and second called numbers to be actually received, the type of announcement broadcast that the caller will listen to, billing information, and automatic call during congestion. A third step of providing incoming information including control information to the intelligent network service switching means; A fourth step of starting, by the service switching means, the relay routing for the actual incoming based on the incoming information; In response to the caller's request, the intelligent network service exchange means attempts to connect the call to the first called number, and connects the personal number service call between the caller and the first called party when the first called number is in a normal state. A fifth step of transmitting a recovery message for requesting recovery of a connection state to the first called party when the first called party is in an abnormal state (non-response state over a predetermined time or busy); And When the first call forwarding fails, a personal number service that fails to perform the first call forwarding between the second called party and the caller corresponding to the second called number by attempting to connect to the second called number according to the caller's request. Sixth Step to Reconnect Call Personal number service secondary incoming connection method comprising a. The method of claim 1, If the first and second called parties are abnormal (no response for more than a predetermined time and busy) and the service is terminated in an incomplete state, the first and second called parties receive a voice message from the caller and store the voice message. 7th step Personal number service secondary incoming connection method further comprising. The method of claim 2, In the seventh step of storing a voice message, Storing the voice message in the voicemail box by interworking the voicemail box, the intelligent network service exchanger, and the intelligent peripheral device, using a common line signaling method (No. 7 ISUP (ISDN User Part)) of the intelligent network service exchanger. Personal number service secondary incoming connection method. The method according to any one of claims 1 to 3, After performing the second step, in the case where the called party has registered the call permission function, the intelligent network service control unit collects and authenticates the permission number from the sender through the intelligent network service exchange unit, and authenticates when the authentication is successful. 8th step to 3rd step Personal number service secondary incoming connection method further comprising. The method according to any one of claims 1 to 3, The fourth step, Based on the called information, the service exchange means transmits the calling information to the calling party to the calling party to the calling party and the first called number to the calling party, and sends the calling party to the calling party. The second number connection method of the personal number service, characterized in that to guide the billing information and informs whether the call progress. The method according to any one of claims 1 to 3, The sixth step, At the first call forwarding failure, the caller is informed of the charging information for the second called number, and the call is selected or not, and at the caller's request, the call is attempted to connect to the second called number. 2. The method of claim 2, wherein the call setup fails to establish a first call transfer between the second called party and the caller corresponding to the called number. The method according to any one of claims 1 to 3, The first and second called number is, In order to minimize the incomplete rate of the service due to external causes such as no answer, and to increase the completion rate of the call, the personal number service secondary incoming connection method characterized in that the subscriber is a wired or wireless telephone number specified by the subscribers subscribed to the personal number service.