WO2011103830A2 - Procédé de connexion d'appel, dispositif et système connexes - Google Patents

Procédé de connexion d'appel, dispositif et système connexes Download PDF

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Publication number
WO2011103830A2
WO2011103830A2 PCT/CN2011/072937 CN2011072937W WO2011103830A2 WO 2011103830 A2 WO2011103830 A2 WO 2011103830A2 CN 2011072937 W CN2011072937 W CN 2011072937W WO 2011103830 A2 WO2011103830 A2 WO 2011103830A2
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WO
WIPO (PCT)
Prior art keywords
call
routing information
calling terminal
calling
connection request
Prior art date
Application number
PCT/CN2011/072937
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English (en)
Chinese (zh)
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WO2011103830A3 (fr
Inventor
李德强
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2011/072937 priority Critical patent/WO2011103830A2/fr
Priority to CN201180000256.7A priority patent/CN102835156B/zh
Publication of WO2011103830A2 publication Critical patent/WO2011103830A2/fr
Publication of WO2011103830A3 publication Critical patent/WO2011103830A3/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/16—Communication-related supplementary services, e.g. call-transfer or call-hold
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels

Definitions

  • the present invention relates to the field of communications and, more particularly, to a method and apparatus and system for call connection in the field of communications. Background technique
  • Unstructured Supplementary Service Data (USSD) call back call service is a typical call back call service.
  • USB Unstructured Supplementary Service Data
  • the calling terminal A initiates a USSD calling terminal B.
  • the Service Control Point SCP
  • the Switching Center/Service Switching Point MSC/SSP
  • ICA Initiate Call Attempt
  • MSC/SSP is called by mobile (Mobile Termination, MT).
  • the process pulls up terminals A and B, and connects to terminals A and B respectively, and bridges the two calls to connect the calls.
  • the network element used for mobile switching is usually called MSC/SSP.
  • the MSC/SSP can correspond to the MSC.
  • the MSC/SSP can correspond to the SSP.
  • the terminal A cannot use the UCB service.
  • the MSC/SSP of the visited terminal of the terminal A passes the "USSD call request" through multiple connections to be routed to the home location register of the terminal A ( Home Location Register (HLR), the HLR routes the call to the SCP according to the service code such as #, *, number, etc. included in the "service code + destination number" dialed by the terminal A, and the SCP commands the terminal A.
  • HLR Home Location Register
  • the MSC/SSP of the home station establishes a connection with the terminal A, and then the MSC/SSP of the home of the terminal A sends Send Routing Information (SRI) signaling to the HLR to obtain the mobile station roaming number of the terminal A.
  • SRI Send Routing Information
  • terminal A sets an unconditional forward, for example, forward to the C number, the call cannot be connected to the calling terminal A, but to the C number, which will cause the calling terminal A to be unable to use the UCB service. If the calling terminal triggers other types of call back-call services, it is signed at the calling terminal.
  • Embodiments of the present invention provide a method for call connection, a call connection apparatus, a route finder, a service control apparatus, and a system, which can solve a conflict problem between a call back call service and an unconditional forward service, so that the call can be normally connected to the main The terminal is called, and the use of the call back service is not hindered by the calling terminal signing up for the unconditional forwarding service.
  • an embodiment of the present invention provides a method for call connection, including: receiving a call connection request sent by a service control device according to a call back call initiated by a calling terminal; and the call connection request is a call connection request And sending a routing information request carrying a call back call mark to the home location register of the calling terminal; receiving the routing information determined by the home location register based on the call back call mark; and connecting the calling terminal according to the routing information.
  • an embodiment of the present invention provides a method for call connection, including: receiving a routing information request carrying a call back call tag from a switching device; determining, based on a call back call tag, a call terminal and a calling terminal Continuing routing information; returning the determined routing information to the switching device.
  • an embodiment of the present invention provides a method for call connection, including: generating a call forwarding request according to a call back call initiated by a calling terminal; and sending the calling connection request to a switching device, so that Transmitting, by the switching device, a routing information request carrying a call back call mark to a home location register of the calling terminal based on the calling connection request, so that the home location register determines routing information based on the call back call mark and Returning the routing information to the switching device, so that the switching device connects the calling terminal based on the routing information.
  • an embodiment of the present invention provides a call connection apparatus, including: a first receiving module, configured to receive a call connection request sent by a service control device according to a call back call service initiated by a calling terminal; When the call connection request is a caller connection request, send a routing information request carrying a call back call mark to the home location register of the calling terminal; and the second receiving module is configured to receive the home location register and determine the call back call mark based on the call back call mark Routing information; a connection module, configured to connect the calling terminal according to the routing information.
  • the embodiment of the present invention provides a route searching device, including: a receiving module, configured to receive a routing information request carrying a call back call tag from a switching device; and a determining module, configured to use a call back call tag, Determining routing information for connecting with the calling terminal; and sending module, configured to return the determined routing information to the switching device.
  • an embodiment of the present invention provides a service control apparatus, including: a generating module, generating a calling connection request according to a call back call initiated by a calling terminal; and sending, by the sending module, the calling connection to the switching device Soliciting, by the switching device, to send, to the home location register of the calling terminal, a routing information request carrying a call back call flag based on the calling connection request, so that the home location register is based on the call back call mark Determining routing information and returning the routing information to the switching device such that the switching device continues the calling terminal based on the routing information.
  • an embodiment of the present invention provides a system for call connection, including the system including a service control device, a call connection device, and a route finder device, where the service control device is configured to be initiated according to a calling terminal.
  • Calling a callback call generating a caller connection request, and transmitting the caller connection request;
  • the call connection apparatus is configured to receive the caller connection request sent by the service control apparatus; and based on the caller connection request
  • the route searching device sends a routing information request carrying a call back call mark; receiving routing information determined by the route lookup device based on the call back call mark; and connecting the calling terminal according to the routing information; a finding device for receiving the routing information request from the call connecting device; determining routing information for connecting with the calling terminal based on the call back call flag; returning the determined routing information to the call Connection device.
  • the route searching device for example, the home location register
  • the routing information enables the call connection device to connect with the calling terminal without connecting to the forwarded-to number (FTN) of the calling terminal as in the related art, so that the calling terminal does not unconditionally sign the contract.
  • FTN forwarded-to number
  • the forward forwarding service hinders the use of the call back call service, thereby solving the conflict problem between the call back call service and the CFU service, and the call back call service can operate normally.
  • FIG. 1 is a flow diagram of a method for call connection performed by, for example, an SSP, in accordance with an embodiment of the present invention.
  • FIG. 2 is a flow diagram of another method for call connection performed by, for example, an SSP, in accordance with an embodiment of the present invention.
  • FIG. 3 is a flow diagram of a method for call connection performed by, for example, an HLR, in accordance with an embodiment of the present invention.
  • FIG. 4 is a flow diagram of a method for call connection performed by, for example, an SCP, in accordance with an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of an example of message interaction for call connection, in accordance with an embodiment of the present invention.
  • FIG. 6 is a structural block diagram of a call connection apparatus according to an embodiment of the present invention.
  • FIG. 7 is a structural block diagram of another call connection apparatus according to an embodiment of the present invention.
  • FIG. 8 is a structural block diagram of a route lookup apparatus according to an embodiment of the present invention.
  • FIG. 9 is a block diagram showing the structure of a service control apparatus according to an embodiment of the present invention.
  • FIG. 10 is a structural block diagram of a system for call connection according to an embodiment of the present invention. detailed description
  • the method 100 includes: in S110, receiving a call connection request sent by a service control device according to a call back call initiated by a calling terminal; in S120, when the call connection request is a call connection request, The routing information request carrying the call back call flag is transmitted to the home location register of the calling terminal; in S130, the home location register receives the routing information determined based on the call back call flag; in S140, the calling terminal is connected according to the routing information.
  • the SSP and SCP are taken as an example for description.
  • the SCP sends a call connection to the SSP according to the call back call of the calling terminal. begging.
  • the call connection request is a caller connection request for connection with the calling terminal
  • the SSP sends a routing information request to the HLR of the calling terminal, and carries a call back call flag for indicating the call back call in the request. . So that the HLR of the calling terminal can return routing information that is connected to the calling terminal based on the call back call flag.
  • the SSP receives routing information from the HLR and establishes a connection with the calling terminal based on the routing information.
  • the HLR of the calling terminal can determine the routing information that is connected to the calling terminal according to the call back call mark. Therefore, the SSP can be connected to the calling terminal under the routing information determined by the HLR according to the call backing mark, without connecting to the forwarding number of the calling terminal as in the related art. Therefore, the calling terminal does not interfere with the use of the call back service because the unconditional forwarding service is contracted, thereby solving the conflict between the call back call service and the CFU service, and the call back call service can operate normally.
  • the SSP receives a call connection request from the SCP, which is generated by the SCP based on a call back call initiated by the calling terminal. For example, when the calling terminal initiates a USSD call back call to call the called terminal, the SCP sends a call connection request to the SSP for controlling the SSP to connect with the corresponding terminal to implement communication between the calling terminal and the called terminal. .
  • the SSP when the call connection request is for requesting a call origination request to be connected to the calling terminal, the SSP sends a routing information request to the HLR of the calling terminal, and carries the call back call flag in the routing information request.
  • the call back call flag can facilitate the HLR to properly select the routing information that can be connected to the calling terminal according to the flag, so as to avoid the problem that the calling terminal cannot connect to the calling terminal when the calling terminal subscribes to the unconditional forwarding service.
  • the SSP does not need to carry the call backing tag in the routing information request, so as to prevent the SSP from being able to connect with the called terminal based on the routing information returned by the HLR of the called terminal, thereby avoiding the call back.
  • a call back call tag may be carried in the route information request based on a specific parameter in the routing information request.
  • a particular parameter in a routing information request may have an unused value or an undefined value that can be used to characterize a call back call tag.
  • the call back call flag can be carried based on a specific cell in the SRI signaling.
  • the interrogation type (S) signaling can be used as a cell carrying a call back call tag.
  • the SRI signaling carries a call back call. mark.
  • a call back call tag by using other cells of SRI signaling, such as by using a Call Diversion Treatment Indicator cell to carry the call back call sign " ⁇ , when the value of the Call Diversion Treatment Indicator is When it is 2, it indicates that the SRI signaling carries a call back call mark, so that the HLR of the calling terminal can correctly select the routing information connected with the calling terminal without performing call forwarding.
  • SRI signaling e.g., SRI signaling
  • a call back call tag may be carried in the routing information request by adding a specific parameter to the routing information request.
  • a private cell may be added for SRI signaling, and the call back tag is carried by the private cell.
  • routing information request may also be other messages or signaling for requesting routing information, or may be a newly set message for the call backing service.
  • the routing information request carrying the call backing tag the HLR of the calling terminal can be conveniently selected to correctly select the routing information that is connected to the calling terminal.
  • the SSP may receive routing information returned by the HLR of the calling terminal in response to the routing information request in S120.
  • the routing information is selected by the HLR based on the call back call flag, and can ensure connection with the calling terminal, so as to prevent the forward call from being forwarded to the calling terminal when the calling terminal subscribes to the unconditional forward forwarding service.
  • the routing information may be a mobile station roaming number (MSRN) of the calling terminal, rather than a forwarding number of the calling terminal.
  • MSRN mobile station roaming number
  • the SSP can connect to the calling terminal according to the routing information returned by the HLR of the calling terminal.
  • the HLR of the calling terminal can be selected based on the call back call mark by carrying the call back call flag in the routing information request. Routing information so that the SSP can connect to the calling terminal correctly. Therefore, the calling terminal does not interfere with the use of the call back service because the unconditional forwarding service is signed, thereby solving the conflict problem between the call back call service and the CFU service.
  • the callback call tag can be carried by the existing cell or the newly added cell that uses the SRI signaling, and the impact on the existing SRI signaling is small, and the implementation is convenient and simple.
  • S210, S220, S230, and S240 of method 200 are substantially identical to S110, S120, S130, and S140 of method 100.
  • the method 200 may further include S215 after S210.
  • S215 when the to-be-connected number carried in the call connection request includes a preset flag, it is determined that the call connection request is a calling connection request.
  • the SCP may carry a preset tag in the call connection request (e.g., ICA message) sent to the SSP, and the preset tag indicates that the call connection request is a caller connection request for connection with the calling terminal.
  • the preset tag can be included in the to-be-connected number carried in the call connection request. Since the fields in the ICA message storing the number to be connected are long and there are spare unused bits, the addition of the prefix does not affect the format of the ICA message, so that it has good compatibility with the existing system. For example, the preset tag can be "999".
  • the SSP can distinguish between the calling connection request and the called connection request to help correctly obtain the routing information connected with the calling terminal.
  • the method 300 includes: receiving, in S310, a routing information request carrying a call back call tag from a switching device; and determining a route for connecting to the calling terminal based on the call back call tag in S320. Information; in S230, the determined routing information is returned to the switching device.
  • the HLR receives a routing information request from the SSP, and carries a call back call tag in the routing information request.
  • the HLR determines routing information based on the call back call tag and returns the determined routing information to the SSP so that the SSP can connect to the calling terminal based on the routing information.
  • the HLR determines the routing information based on the call back call mark, so that the SSP can connect to the calling terminal based on the routing information, and does not sign the calling terminal as in the related art.
  • the forwarding number of the calling terminal is connected, so that the conflict between the call backing service and the CFU service can be solved, so that the terminal can normally use the call backing service without being unconditionally signed. Forwarding the business hinders the use of the call back service.
  • S310 to S330 according to an embodiment of the present invention will be specifically described.
  • a routing information request is received from the SSP, and a call back call flag is carried in the routing information request.
  • a call back call flag is carried in the routing information request.
  • For the content of the routing information request and the call back call mark reference may be made to the corresponding part of S120 in the foregoing method 100. To avoid repetition, details are not described herein again.
  • the HLR can directly determine the routing information related to the terminal to which the routing information request is directed based on the call back call flag. Since the SSP carries the call back call tag in the routing information request when receiving the calling connection request, the routing information is routing information for the calling terminal.
  • the routing information may be the mobile station roaming number MSRN of the calling terminal, rather than the forwarding number of the calling terminal. Therefore, based on the call back call flag, the HLR can directly select the MSRN of the terminal for which the routing information request is directed, and return the MSRN to the SSP, so that the SSP connects to the terminal based on the MSRN. Thus, if the calling terminal also subscribes to the unconditional forwarding service, the HLR does not return the forwarding number of the calling terminal as the routing information based on the call back call flag, thereby ensuring that the SSP and the calling terminal are correctly connected.
  • the HLR returns the determined routing information to the SSP, so that the SSP can connect with the calling terminal.
  • the HLR may select routing information that can be connected to the calling terminal according to the call back call mark in the routing information request, and return the routing information to the SSP, so that the SSP The connection with the calling terminal can be correctly implemented. Therefore, the calling terminal does not interfere with the use of the call back service because it signs the unconditional forwarding service, thereby solving the conflict between the call back service and the CFU service.
  • the method 400 includes: in S410, generating a calling connection request according to a call back call initiated by the calling terminal; in S420, sending a calling connection request to the switching device, so that the switching device Transmitting, by the calling connection request, a routing information request carrying a call back call mark to a home location register of the calling terminal, so that the home location register determines routing information based on the call back call mark and routes the route Information is returned to the switching device such that the switching device continues the calling terminal based on the routing information.
  • the SCP may carry a preset tag in the call connection request, and the preset call flag indicates that the call connection request is a caller connection request. Therefore, after receiving the call connection request carrying the preset mark, the SSP sends a routing information request carrying the call back call mark to the HLR of the calling terminal based on the preset mark, so that the HLR of the calling terminal can be determined based on the call back call mark. Routing information, the SSP can be connected to the calling terminal based on the routing information returned by the HLR.
  • the connection with the calling terminal can be realized, without being related.
  • the switching device is connected to the forwarding number of the calling terminal in the case where the calling terminal subscribes to the unconditional forwarding service. Therefore, the conflict between the call back call service and the CFU service can be solved, so that the terminal can normally use the call back call service without hindering the use of the call back call service by signing the unconditional forward service.
  • the related content of the S410 may refer to the S215 in the foregoing method 200.
  • the related content of the S420 may refer to the method 100 and the method 300. To avoid repetition, details are not described herein again.
  • the routing information may be the mobile station roaming number MSRN of the calling terminal, rather than the forwarding number of the calling terminal.
  • the SSP after receiving the call connection request based on the preset tag, the SSP sends a routing information request carrying the call back call tag, and can receive the MSRN of the calling terminal from the HLR of the calling terminal, so as to be connected to the calling terminal. . Therefore, even if the calling terminal subscribes to the unconditional forwarding service, the call back call service can be used normally without conflicts between services.
  • Figure 5 is a description of the UCB service initiated by the calling terminal A in the international roaming.
  • the calling terminal A also subscribes to the CFU service.
  • CFU CFU
  • Those skilled in the art will appreciate that the situation in which the calling terminal A is in a domestic roaming, non-roaming state is similar.
  • Those skilled in the art can also think that although the UCB service is taken as an example, it can be applied to other types of call pageback services.
  • the calling terminal A visits the VMSC/SSP (the visited MSC/SSP, the visited mobile switching center/service switching point) 505 to route the USSD call request. After multiple connections, it is routed to the HLR 530 to which the calling terminal A belongs.
  • VMSC/SSP the visited MSC/SSP, the visited mobile switching center/service switching point
  • the HLR 530 routes the USSD call request to the SCP 520 based on the service code dialed by the terminal A, including the #, * and number, or the USSD subscription information of the terminal.
  • SCP 520 returns a USSD call response to HLR 530.
  • the HLR 530 ⁇ SSP 510 returns a USSD call response.
  • the SCP 520 commands the GMSC/SSP (Gateway MSC/SSP, Gateway Mobile Switching Center/Service Switching Point) 510 of the home country of the calling terminal A to start establishing and calling the terminal terminal based on the USSD subscription information of the calling terminal or the like.
  • the call of A sends an ICA message, a Request Report BCSM Event (RRBE) message, and a CONTINUE message to the GMSC/SSP 510.
  • the SCP 520 can carry the prefix information in the transmitted ICA message to indicate that the GMSC/SSP 510 needs to establish a connection with the calling terminal A.
  • the GMSC/SSP 510 when the GMSC/SSP 510 determines that it needs to connect with the calling terminal A based on the prefix information, the GMSC/SSP 510 sends the SRI signaling to the HLR 530, and carries the call back call sign in the SRI signaling.
  • the call back tag can be carried by other cells such as an Interrogation Type cell or a Call Diversion Treatment Indicator, or a dedicated cell can be set in the SRI signaling to carry the call back call tag.
  • the HLR 530 returns an SRI-ACK (Acknowledge) response message in response to the SRI signaling to the GMSC/SSP 510, where the response message carries the MSRN of the calling terminal A, and may also carry the called CAMEL subscription.
  • Information (Termination CAMEL Subscription Information, T-CSI).
  • the GMSC/SSP 510 sends an Initial Detect Point (IDP) message to the SCP 520, pulls A through the MT process, and establishes a connection to the calling terminal A according to the MSRN instead of the forwarding number.
  • IDP Initial Detect Point
  • the GMSC/SSP 510 needs to complete the connection with the called terminal.
  • FIG. 6 is a block diagram showing the structure of a call splicing apparatus 600 according to an embodiment of the present invention.
  • the call connection device 600 can include a first receiving module 610, a transmitting module 620, a second receiving module 630, and a connection module 640.
  • the first receiving module 610 is configured to receive a call connection request sent by the service control device according to the call back service initiated by the calling terminal.
  • the sending module 620 can be configured to send a routing information request carrying a call back call token to the calling terminal's home location register when the call connection request is a calling connection request.
  • the second receiving module 630 can be configured to receive routing information determined by the home location register based on the call back call tag.
  • the connection module 640 can be used to connect to the calling terminal based on the routing information.
  • the call connection apparatus provided by the embodiment of the present invention carries the call back call mark in the routing information request, so that the HLR of the calling terminal can locate the call back call mark to determine the routing information that is connected with the calling terminal, so that the call connection apparatus
  • the calling terminal can be connected to the calling terminal under the routing information determined by the HLR according to the call back call mark, and does not continue to the forwarding number of the calling terminal as in the related art. Therefore, the calling terminal does not interfere with the use of the call back service because the unconditional forwarding service is signed, so that the conflict between the call back call service and the CFU service can be solved, and the call back call service can operate normally.
  • FIG. 7 is a block diagram showing the structure of another call connecting apparatus 700 according to an embodiment of the present invention.
  • the 730 and the connection module 740 are substantially identical to the first receiving module 610, the transmitting module 620, the second receiving module 630, and the connection module 640 of the call connection device 600.
  • call splice device 700 may also include a determination module 715.
  • the determining module 715 can be configured to determine that the call connection request is a calling connection request when the number carried by the call connection request includes a preset flag.
  • the routing information is the mobile station roaming number MSRN of the calling terminal, not the forwarding number of the calling terminal.
  • the transmitting module 720 can be configured to carry a call back call tag in the routing information request based on a particular parameter in the routing information request.
  • the transmitting module 720 can also be configured to carry a call back call tag in the routing information request by adding a specific parameter to the routing information request.
  • the transmitting module 720 can be configured to send SRI signaling to the HLR of the calling terminal and carry the call back call tag based on the SRI signaling cell.
  • determining module 715 and the transmitting module 720 may refer to S215 in the above method 200 and 120 in the method 100. To avoid repetition, details are not described herein again.
  • the call connection apparatus provided by the embodiment of the present invention can distinguish whether it is a calling connection request or a called connection request based on the preset flag in the call connection request, to help correctly obtain the routing information connected to the calling terminal. Meanwhile, when the routing information request is SRI signaling, the call connection apparatus can carry the call back call mark by using the existing cell or the newly added cell of the SRI signaling, which has little impact on the existing SRI signaling, and is implemented. Convenient and simple.
  • FIG. 8 is a block diagram showing the structure of a route lookup apparatus 800 according to an embodiment of the present invention.
  • the route lookup device 800 can include a receive module 810, a determination module 820, and a transmit module 830.
  • the receiving module 810 can be configured to receive a routing information request from the switching device that carries the call back call tag.
  • the determining module 820 is operative to determine routing information for connecting to the calling terminal based on the call back call tag.
  • the sending module 830 can be configured to return the determined routing information to the switching device.
  • the foregoing operations and/or functions of the receiving module 810, the determining module 820, and the sending module 830 may refer to S310 to S330 in the foregoing method 300. To avoid repetition, details are not described herein again.
  • the routing information is the mobile station roaming number of the calling terminal MS mouse
  • the route finder device may select routing information (for example, MSRN) based on the call back call mark, so that the switching device can connect to the calling terminal based on the routing information, and does not sign the calling terminal as in the related art.
  • routing information for example, MSRN
  • the forwarding number of the calling terminal is connected, so that the conflict between the call backing service and the CFU service can be solved, so that the calling terminal can normally use the call backing service, instead of Signing up for an unconditional forward business interferes with the use of the call back service.
  • FIG. 9 is a block diagram showing the structure of a service control device 900 according to an embodiment of the present invention.
  • the service control device 900 can include a generation module 910 and a transmission module 920.
  • the generating module 910 can be configured to generate a calling connection request according to the call back call initiated by the calling terminal.
  • the sending module 920 can be configured to send the calling connection request to the switching device, so that the switching device sends a routing information request carrying the call backing tag to the home location register of the calling terminal based on the calling connection request. So that the home location register determines routing information based on the call back call tag and returns the routing information to the switching device, thereby causing the switching device to continue the calling terminal based on the routing information.
  • routing information is a mobile station roaming number of a calling terminal
  • the service control device provided by the embodiment of the present invention can help to implement the connection with the calling terminal by carrying the preset tag in the call connection request, without the case that the calling terminal subscribes to the unconditional forwarding service as in the related art.
  • the forwarding device is connected to the forwarding number of the calling terminal. Therefore, the conflict between the call back call service and the CFU service can be solved, so that the terminal can normally use the call back call service, and the call back call service is not hindered by signing the unconditional forward service. Use of services.
  • FIG. 10 is a block diagram showing the structure of a system 1000 for call connection in accordance with an embodiment of the present invention.
  • System 1000 includes a service control device 1010, a call connection device 1020, and a route lookup device 1030.
  • the service control device 1010 is operative to generate a call connection request according to a call back call initiated by the calling terminal; and send the call connection request to the call connection device 1020.
  • the call connection device 1020 can be configured to receive a call origination request sent by the service control device 1010; send a route information request carrying a call back call tag to the route lookup device 1030 based on the caller connection request; and receive the route lookup device 1030 based on the call back call tag The determined routing information; the calling terminal is connected according to the routing information.
  • the route lookup device 1030 can be configured to receive a routing information request from the call connection device 1020; determine routing information for connecting to the calling terminal based on the call back call flag; and return the determined routing information to the call connection device 10
  • the routing information is the mobile station roaming number of the calling terminal MS mouse
  • the call connection device 1020 may also be the call connection device 700 as shown in FIG.
  • the call connection device when receiving the call connection request carrying the preset flag sent by the service control device, the call connection device carries the call back call tag in the routing information request, so that the route search is performed.
  • the device may determine routing information to be connected to the calling terminal according to the call back call mark.
  • the call splicing device can connect to the calling terminal based on the routing information without continuing to the forwarding number of the calling terminal as in the related art. Therefore, the calling terminal does not interfere with the use of the call back service because the unconditional forwarding service is contracted, thereby solving the conflict between the call back call service and the CFU service, and the call back call service is normally operated.
  • RAM random access memory
  • ROM read only memory
  • electrically programmable ROM electrically erasable programmable ROM
  • registers hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. in.

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  • Telephonic Communication Services (AREA)

Abstract

Le mode de réalisation de cette invention concerne un procédé de connexion d'appel, un dispositif et un système connexes, un dispositif de recherche de chemins, ainsi qu'un dispositif et un système de commande de service. Le procédé consiste à: recevoir une demande de connexion d'appel transmise et renvoyée par un dispositif de commande de service selon l'appel lancé par le terminal appelant; transmettre une demande d'information de chemin contenant un identifiant de renvoi d'appel à un enregistreur de localisation nominal (HLR) du terminal appelant lorsque la demande de connexion d'appel est une demande de connexion du terminal appelant; recevoir l'information de chemin déterminée par le HLR d'après l'identifiant de renvoi d'appel; et se connecter au terminal appelant conformément à l'information de chemin. Selon la solution technique, le HLR du terminal appelant peut sélectionner l'information de chemin adéquate d'après l'identifiant de renvoi d'appel de manière que le dispositif de commutation puisse se connecter avec le terminal appelant, contrairement à l'art antérieur qui utilise le numéro de renvoi d'appel du terminal appelant. Les conflits entre un service de renvoi d'appels et un service de retransmission sans condition sont donc résolus.
PCT/CN2011/072937 2011-04-18 2011-04-18 Procédé de connexion d'appel, dispositif et système connexes WO2011103830A2 (fr)

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CN201180000256.7A CN102835156B (zh) 2011-04-18 2011-04-18 用于呼叫接续的方法及其装置和系统

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