WO2015180442A1 - 彩铃业务实现系统、装置及方法 - Google Patents

彩铃业务实现系统、装置及方法 Download PDF

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Publication number
WO2015180442A1
WO2015180442A1 PCT/CN2014/092831 CN2014092831W WO2015180442A1 WO 2015180442 A1 WO2015180442 A1 WO 2015180442A1 CN 2014092831 W CN2014092831 W CN 2014092831W WO 2015180442 A1 WO2015180442 A1 WO 2015180442A1
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WO
WIPO (PCT)
Prior art keywords
crbt
called
calling
server
terminal
Prior art date
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PCT/CN2014/092831
Other languages
English (en)
French (fr)
Inventor
关春
朱广亮
哈景楠
Original Assignee
中兴通讯股份有限公司
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.)
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Publication date
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Priority to EP14893349.2A priority Critical patent/EP3136756A4/en
Publication of WO2015180442A1 publication Critical patent/WO2015180442A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42017—Customized ring-back tones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1069—Session establishment or de-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1096—Supplementary features, e.g. call forwarding or call holding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1101—Session protocols
    • H04L65/1104—Session initiation protocol [SIP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
    • H04M2201/16—Sequence circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42025—Calling or Called party identification service
    • H04M3/42034—Calling party identification service
    • H04M3/42059—Making use of the calling party identifier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42025—Calling or Called party identification service
    • H04M3/42085—Called party identification service
    • H04M3/42102—Making use of the called party identifier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
    • H04M7/1205—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
    • H04M7/129—Details of providing call progress tones or announcements

Definitions

  • the present invention relates to the field of communications, and in particular, to a CRBT service implementation system, apparatus, and method.
  • the current IMS core network user service subscription is implemented by the Home Subscriber Server (HSS) subscription template, that is, each application server (Application Server, referred to as AS) is responsible for one primary.
  • HSS Home Subscriber Server
  • AS Application Server
  • the call connection process from the terminal to the called terminal that is, the color ring tone AS based on the IMS network, in addition to being responsible for the playback function, is also responsible for call connection, call forwarding and the like.
  • the above solution is complicated to implement.
  • the interface of the IMS core network call control node and the CRBT service needs to separately deploy the calling CRBT AS and the nickname. Calling the address of the ring back tone AS, the implementation of the program is rather cumbersome.
  • the embodiments of the present invention provide a system, apparatus, and method for implementing a CRBT service to solve the above problems at least for the problem that the CRBT service is complex and the security is not high.
  • a CRBT service implementation system including: a first server and a second server, wherein the first server is configured to respond to a call of the calling terminal, connect the called terminal; and trigger The second server plays the CRBT to the calling terminal; the second server is configured to play the CRBT to the calling terminal in response to the trigger of the first server.
  • the played CRBT includes: the calling party CRBT preset by the calling terminal and the called CRBT preset by the called terminal; the first server is further configured to: determine to play the calling ringtone to the calling terminal according to a preset rule. And the above-mentioned called CRBT, and when the second server is triggered to play the CRBT to the called terminal, indicating to determine the played CRBT; or the second server is further configured to determine to play to the calling terminal according to the preset rule.
  • the above-mentioned calling ring tones are still the above-mentioned called ring tones.
  • the preset rule includes: a priority of the calling CRBT and a priority of the called CRBT; wherein, when the priority of the calling CRBT is higher than the priority of the called CRBT, the main terminal is played to the calling terminal.
  • the ring tones are called; when the priority of the called ring tones is higher than the priority of the called ring tones, the called ring tones are played to the calling terminal.
  • a first server including: a communication interface configured to communicate with an IP multimedia subsystem and a second server, wherein the second server is configured to play a sound to the terminal;
  • the processor is configured to respond to the call of the calling terminal to connect to the called terminal, and the second processor is configured to trigger the second server to play the CRBT to the calling terminal.
  • the second processor is further configured to: determine, according to a preset rule, whether to play the calling CRBT or the called CRBT to the calling terminal, and when the second server is triggered to play the CRBT to the called terminal, instructing to determine the played CRBT;
  • the calling ring tones are the ring tones preset by the calling terminal, and the called ring tones are the ring tones preset by the called terminal.
  • the preset rule includes: a priority of the calling CRBT and a priority of the called CRBT; wherein, when the priority of the calling CRBT is higher than the priority of the called CRBT, the main terminal is played to the calling terminal.
  • the ring tones are called; when the priority of the called ring tones is higher than the priority of the called ring tones, the called ring tones are played to the calling terminal.
  • a method for implementing a CRBT service including: a first server responding to a call of a calling terminal, and connecting a called terminal; and the first server triggering the second server to play a CRBT to the calling terminal.
  • the second server is configured to play the CRBT to the calling terminal in response to the triggering of the first server.
  • the method further includes: determining, by the first server, the calling color ring tone or the called color ring tone to the calling terminal according to the preset rule; wherein the calling color ring tone is a color ring tone preset by the calling terminal, and the called color ring tone is the above
  • the CRBT preset by the called terminal the first server instructs to determine the played CRBT when the second server is triggered to play the CRBT to the called terminal.
  • the preset rule includes: a priority of the calling CRBT and a priority of the called CRBT; wherein, when the priority of the calling CRBT is higher than the priority of the called CRBT, the main terminal is played to the calling terminal.
  • the ring tones are called; when the priority of the called ring tones is higher than the priority of the called ring tones, the called ring tones are played to the calling terminal.
  • the first server responds to the call of the calling terminal and connects the called terminal, and the first server responds to the call initiated by the calling terminal through the IP multimedia subsystem, and connects the called terminal through the IP multimedia subsystem.
  • the method further includes: the first server determining whether to play the CRBT; when determining to play the CRBT, the first server triggering the second server to play the CRBT to the calling terminal .
  • the first server determines whether to play the CRBT, and the first server receives the first message sent by the called terminal, where the first message is set to indicate a status of the called terminal; and when the first message indicates the foregoing When the terminal is called the idle state, the first server determines to play the CRBT.
  • the first server triggers the second server to play the CRBT to the calling terminal, and the first server sends a call request to the second server, where the call request carries the information of the calling terminal.
  • a CRBT service implementation apparatus which is located at a first server, and includes: a connection module, configured to respond to a call of the calling terminal, to connect to the called terminal; and a trigger module, configured to trigger the second
  • the server plays the CRBT to the calling terminal, wherein the second server is configured to play the CRBT to the calling terminal in response to the trigger of the first server.
  • the first determining module is further configured to: determine, according to the preset rule, whether to play the calling CRBT or the called CRBT to the calling terminal; wherein the calling CRBT is the CRBT preset by the calling terminal, and the called CRBT is And the triggering module is further configured to: when the second server is triggered to play the CRBT to the called terminal, instructing to determine the played CRBT.
  • the preset rule includes: a priority of the calling CRBT and a priority of the called CRBT; wherein, when the priority of the calling CRBT is higher than the priority of the called CRBT, the main terminal is played to the calling terminal.
  • the ring tones are called; when the priority of the called ring tones is higher than the priority of the called ring tones, the called ring tones are played to the calling terminal.
  • the connection module is configured to respond to the call initiated by the calling terminal through the IP multimedia subsystem, and connect the called terminal through the IP multimedia subsystem.
  • the above apparatus further includes: a second determining module, configured to determine whether to play the CRBT.
  • the second determining module includes: a receiving unit, configured to receive the first message sent by the called terminal, where the first message is set to indicate a status of the called terminal; and the determining unit is configured to be the first message When the called terminal is in the idle state, it is determined to play the CRBT.
  • the triggering module is configured to initiate a call request to the second server, where the call request carries information of the calling terminal.
  • the first server is configured to respond to the call of the calling terminal, and connect the called terminal; and trigger the second server to play the CRBT to the calling terminal; the second server is configured to respond to the trigger of the first server,
  • the calling terminal plays the ring back tone. Therefore, the call and the ring back tone are separated, which can effectively avoid single point of failure and improve the security of the CRBT service.
  • FIG. 1 is a schematic diagram of a CRBT service implementation system according to an embodiment of the present invention
  • FIG. 2 is a block diagram showing the structure of a first server according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for implementing a CRBT service according to an embodiment of the present invention
  • FIG. 4 is a structural block diagram of a color ring service implementation apparatus according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a preferred CRBT service implementation system according to an embodiment of the present invention.
  • FIG. 6 is a flow chart of called double-call AS call signaling according to an embodiment of the present invention.
  • FIG. 7 is a flow chart of a calling double-call AS call signaling according to an embodiment of the present invention.
  • FIG. 8 is a signaling flowchart of double-calling AS call playback when a calling color ring tone and a called color ring tone coexist according to an embodiment of the present invention.
  • FIG. 1 is a schematic diagram of a CRBT service implementation system according to an embodiment of the present invention.
  • the system mainly includes: a first server 1 and a second server 2, wherein the first server 1 is configured to respond to a calling terminal. The call is followed by the called terminal; and the second server 2 is triggered to play the CRBT to the calling terminal; the second server 2 is configured to play the CRBT to the calling terminal in response to the trigger of the first server 1.
  • the first server is configured to respond to the call of the calling terminal, and connect the called terminal; and trigger the second server to play the CRBT to the calling terminal; the second server is configured to respond to the trigger of the first server,
  • the calling terminal plays the ring back tone. Therefore, the call and the ring back tone are separated, which can effectively avoid single point of failure and improve the security of the CRBT service.
  • only the first server is redundant, which reduces the network deployment cost.
  • the first server 1 may further determine whether to play the CRBT, and when determining to play the CRBT, trigger the second server 2 to play the CRBT to the calling terminal.
  • the played CRBT includes: a calling ringtone preset by the calling terminal and a called CRBT preset by the called terminal; and the first server 1 is further configured to determine according to a preset rule. Whether the calling CRBT or the called CRBT is played to the calling terminal, and when the second server is triggered to play the CRBT to the called terminal, the CRBT is determined to be played. Alternatively, the second server may also determine the CRBT to be played, and the second server 2 is further configured to determine whether to play the calling CRBT or the called CRBT to the calling terminal according to a preset rule.
  • the preset rule may include: a priority of the calling CRBT and a priority of the called CRBT.
  • the priority of the calling CRBT is higher than the priority of the called CRBT, the calling CRBT can be played to the calling terminal; when the priority of the called CRBT is higher than the priority of the called CRBT, the calling CR can be played to the calling terminal.
  • the called ring tones are not limited thereto.
  • FIG. 2 is a structural block diagram of a first server according to an embodiment of the present invention.
  • the first server may include: a communication interface 210, a first processor 220, and a second processor 230.
  • the communication interface 210, the first processor 220, and the second processor 230 are connected to each other.
  • the communication interface 210 is configured to communicate with the IP multimedia subsystem and the second server, wherein the second server is configured to play the sound to the terminal; the first processor 220,
  • the second processor 230 is configured to trigger the second server to play the color ring tone to the calling terminal, in response to the call of the calling terminal, connecting the called terminal.
  • the second processor 230 may further determine whether to play the CRBT, and when determining to play the CRBT, trigger the second server to play the CRBT to the calling terminal.
  • the called CRBT AS and the calling CRBT AS need to be triggered at the same time, and only one of the ring tones or the called CRBT is required to play the ring tone, which causes waste of the playing resources on one side.
  • the second processor 230 is further configured to determine, according to a preset rule, whether to play the calling CRBT or the called CRBT to the calling terminal, and trigger the second server to play to the called terminal.
  • the CRBT is determined to be played; wherein the CRBT is the ringtone preset by the calling terminal, and the called CRBT is the CRBT preset by the called terminal.
  • the preset rule may include: a priority of the calling CRBT and a priority of the called CRBT.
  • the priority of the calling CRBT is higher than the priority of the called CRBT, the calling CRBT is played to the calling terminal; when the priority of the called CRBT is higher than the priority of the called CRBT, the calling to the calling terminal is played. Call the ring tones.
  • FIG. 3 is a flowchart of a method for implementing a color ring service according to an embodiment of the present invention. As shown in FIG. 3, the method mainly includes steps S302 to S304.
  • Step S302 the first server responds to the call of the calling terminal, and connects the called terminal.
  • Step S304 The first server triggers the second server to play the CRBT to the calling terminal, where the second server is configured to play the CRBT to the calling terminal in response to the trigger of the first server.
  • the method may further include: determining, by the first server, whether to play the calling CRBT or the called CRBT to the calling terminal according to the preset rule; wherein the calling CRBT is preset to the calling terminal.
  • the called CRBT is the CRBT preset by the called terminal; the first server instructs to determine the CRBT to be played when the second server is triggered to play the CRBT to the called terminal.
  • the preset rule may include: a priority of the calling CRBT and a priority of the called CRBT.
  • the priority of the calling CRBT is higher than the priority of the called CRBT, the calling CRBT is played to the calling terminal; when the priority of the called CRBT is higher than the priority of the called CRBT, the called party is called to the calling terminal. Ring tones.
  • the first server may connect to the called terminal through the IP multimedia subsystem in response to the call initiated by the calling terminal through the IP multimedia subsystem.
  • the first server may further determine whether to play the CRBT.
  • the first server may receive the first message sent by the called terminal, where the first message is set to indicate the status of the called terminal; when the first message indicates that the called terminal is idle In the state, the first server determines to play the ring back tone.
  • the first server may initiate a call request to the second server, where the call request carries information of the calling terminal.
  • FIG. 4 is a structural block diagram of a color ring service implementation device according to an embodiment of the present invention.
  • the device is located in a first server, and the device may include: a connection module 410 and a trigger module 420.
  • the connection module 410 is configured to respond to the call of the calling terminal and connect to the called terminal.
  • the triggering module 420 is connected to the connection module 410, and is configured to trigger the second server to play the color ring tone to the calling terminal, where the second server is configured.
  • the ring back tone is played to the calling terminal.
  • the called CRBT AS and the calling CRBT AS need to be triggered at the same time, and only one of the ring tones or the called CRBT is required to play the ring tone, which causes waste of the playing resources on one side.
  • the first determining module is further configured to: determine, according to the preset rule, whether to play the calling CRBT or the called CRBT to the calling terminal; wherein the calling CRBT is the calling terminal.
  • the preset CRBT, the called CRBT is the CRBT preset by the called terminal, and the triggering module 420 is further configured to: when the second server is triggered to play the CRBT to the called terminal, instruct to determine the played CRBT.
  • the preset rule may include: a priority of the calling CRBT and a priority of the called CRBT; wherein, when the priority of the calling CRBT is higher than the priority of the called CRBT, The calling CRBT is played to the calling terminal; when the called CRBT has a higher priority than the called CRBT, the called CRBT is played to the calling terminal.
  • connection module 410 is configured to connect to the called terminal through the IP multimedia subsystem in response to the call initiated by the calling terminal through the IP multimedia subsystem.
  • the apparatus may further include a second determining module configured to determine whether to play the CRBT.
  • the second determining module may include: a receiving unit, configured to receive a first message sent by the called terminal, where the first message is set to indicate a status of the called terminal; It is set to determine that the ring back tone is played when the first message indicates that the called terminal is in an idle state.
  • the triggering module may be configured to initiate a call request to the second server, where the call request carries information of the calling terminal.
  • the CRBT AS is decomposed into a CRBT playback AS (corresponding to the second server described above) and a CRBT dual-call AS (corresponding to the first server described above), wherein the CRBT playback AS is only responsible for playback.
  • Function, CRBT Dual Call AS is responsible for call related functions such as call connection and call forwarding. For the single point of failure of the network, only the CRBT dual-call AS is required to achieve redundancy. On the basis of ensuring the security of the system, the investment waste of the operator is greatly reduced, and the operator's expenditure is saved.
  • the interface of the core network control node only needs to deploy dual-call AS.
  • the related technology needs to trigger the called CRBT AS and the calling CRBT AS at the same time, which will cause waste of the playing resources of the called side.
  • the preferred embodiment only needs the dual calling AS according to the priority.
  • the selection trigger is called the playback AS or the calling playback AS, which greatly saves the playback resources.
  • the ring back tone double call AS can be used as the called double call AS and the caller double call AS.
  • the calling double-call AS implementation method includes: the calling terminal initiates a call to the called terminal, and the calling side service call control function (SCSCF) evaluates the calling user to sign the main through the initial filtering criterion.
  • SCSCF calling side service call control function
  • the call is sent to the calling double-call AS, and the calling double-calling AS calls out to the called terminal via the called side core network.
  • the called terminal rings, the ringing message arrives at the calling double call AS, and then the calling double call AS plays the call of the playback AS.
  • the playback AS obtains the CRBT information of the calling user, the connection is established with the media server to obtain the negotiated CRBT session description protocol (SDS), and the ring back tone SDP is sent to the calling end through the ringing message.
  • SDS negotiated CRBT session description protocol
  • the playback AS After the terminal and the media server are negotiated, the playback AS starts to play the calling ring tone to the calling party.
  • the calling double-call AS sends a cancel message to the playback AS, the playback AS interrupts the connection with the media server, the calling ring tone stops playing, and the calling double-call AS re-initiates the calling and called media negotiation, the call process. set up.
  • the method for implementing the dual-call AS includes: the calling terminal initiates a call to the called terminal, and the called side SCSCF evaluates the called user to subscribe to the called CRBT service through the initial filtering criterion, and then sends the call to the called double-call AS. Be Called the double call AS to call out to the called terminal. The called terminal rings, the ringing message arrives at the called double-call AS, and then the called double-call AS initiates a call to the playback AS.
  • the playback AS After the playback AS obtains the CRBT information of the called user, it establishes a connection with the media server to obtain the negotiated ring tones SDP, and sends the called ring back tone SDP to the calling end through the ringing message, and the playback AS starts to play to the calling party. Call the ring tones.
  • the called double-call AS sends a cancel message to the playback AS, the playback AS interrupts the connection with the media server, the color ring tone stops playing, and the called double-call AS re-initiates the primary and called media negotiation, and the call process is established.
  • the steps of the calling dual-call AS (or the called dual-call AS) to implement the CRBT service are as follows:
  • Step A The calling dual-call AS (or the called dual-call AS) receives the call initiated by the core network SCSCF and forwards the call to the core network.
  • Step B When the called terminal is idle, the called party starts ringing and sends a ringing message to the calling double call AS (or the called double call AS).
  • Step C After receiving the ringing message, the calling dual-call AS (or the called double-calling AS) initiates a new one-way call to the playback AS.
  • Step D The playback AS queries the database to obtain the CRBT information of the called user, and the SDP information negotiated between the calling terminal and the media server is brought to the calling double call AS (or the called double call AS) by the ringing message, and the calling party
  • the double-call AS (or the called double-call AS) transparently transmits the ringing message to the calling side, and the calling and playback AS negotiation ends, and the playback AS plays the ring back tone to the calling party.
  • Step E The called party answers, the calling double-call AS (or the called double-calling AS) sends a cancel message to the playback AS, the playback AS stops playing the CRBT, and the calling double-call AS (or the called double-call AS) re-initiates The mediation of the calling and called parties, the calling party and the called party start talking.
  • FIG. 5 is a schematic diagram of a preferred CRBT service implementation system according to an embodiment of the present invention.
  • UEA and UEB respectively represent a calling terminal and a called terminal; and a proxy call session control function (Proxy-CSCF, abbreviated as P) -CSCF), Interrogating CSCF (I-CSCF for short), S-CSCF is the call/session control function node of the IMS network, and the HSS records the registration and service subscription information of the user.
  • CRBT dual-call AS and CRBT playback AS represent the application server of the CRBT.
  • the calling terminal and the called terminal are both registered to the IMS core network.
  • the call/session control nodes of the IMS are exchanged through the Session Initiation Protocol (SIP).
  • SIP Session Initiation Protocol
  • -CSCF CRBT playback AS interaction
  • RTP CRBT audio stream
  • FIG. 6 is a flow chart of called double-call AS call signaling according to an embodiment of the present invention
  • FIG. 7 is a flowchart of calling double-call AS call signaling according to an embodiment of the present invention, in which signaling interaction between core networks is omitted.
  • FIG. 7 and FIG. 6 are substantially the same and will not be described again. As shown in FIG. 6, the method includes:
  • Steps 1 to 3 The calling terminal UEA initiates a call and arrives at the called dual-call AS via the core network, and the called dual-call AS calls the core network to the UEB.
  • Steps 4-6 The called state idle sends a 180 message to the called double-call AS, and the called double-call AS sends a PRACK response of 180 to the called side, and subsequently receives the 200 PRACK message of the called side.
  • Steps 7 to 11 The called double-call AS initiates a new one-way call to the CRBT playback AS, where the INVITE message carries the SDP information of the calling side.
  • the ringback tone playback AS returns 180 response, wherein the 180 message carries the CRBT SDP information negotiated with the calling party, and the called double-call AS sends a PRACK response of 180 to the playback AS, and subsequently receives the 200 PRACK message of the playback AS.
  • Steps 12 to 14 The called double-call AS brings the SDP message of the playback AS to the calling terminal through the 180 message, and the calling terminal knows the ringing of the called party, and the playback AS starts to play the ring back tone to the calling terminal.
  • Steps 15 to 16 The called double-call AS receives the called back 200 response message, and the called double-call AS returns the ACK response.
  • Steps 17 to 20 The called double-call AS sends a CANCEL message to the ring tones playback AS, and the playback AS stops playing the ring tones.
  • Steps 21 to 27 The REINVITE message sent by the called double-call AS is sent to the called side, and the called terminal returns a 200 response message, where the message has the called SDP information.
  • the called double-call AS updates the called SDP to the calling side through the UPDATE message.
  • the calling terminal sends the negotiated SDP message back to the called double-call AS through the 200UPDATE message, and the called double-call AS will negotiate after the ACK message.
  • the SDP is updated to the called terminal, and the main called party negotiation ends.
  • the called double-call AS notifies the calling party that the called party has answered, and the calling party and the called party start the call.
  • Steps 28 to 31 The calling party hangs up, sends a BYE message to the called double-calling AS, and the called double-calling AS sends a BYE message to the called terminal, and the calling party and the called party end.
  • FIG. 8 is a signaling flowchart of a double-call AS call playback when a calling color ring tone and a called color ring tone coexist, according to an embodiment of the present invention, as shown in FIG.
  • Steps 1 to 4 The calling terminal UEA initiates a call, and reaches the CRBT dual-call AS via the core network, and the CRBT double-call AS calls the core network to the UEB.
  • the called state idle sends a 180 message to the called double-call AS, and the called double-call AS sends a PRACK response of 180 to the called side, and subsequently receives the 200 PRACK message of the called side.
  • Steps 5 to 7 The dual-call AS selects a line call according to the priority level of the called ring tones and the calling ring tones to trigger the call to play the AS or the called play AS (where the solid line in the figure indicates that the caller has priority, if If the priority is high, the dotted line process is performed, and the CRBT media information after negotiation with the calling terminal is obtained through the 180 message.
  • Step 8 The dual-call AS sends the CRBT media to the calling terminal through the core network through the 180 message, and the playback AS starts to play the ring back tone to the calling party.
  • the embodiment of the present invention achieves the following technical effects: only need to implement redundancy for the CRBT dual-call AS, and greatly reduce the investment waste of the operator on the basis of ensuring the security of the system. , saving the operator's expenses.
  • the interface of the core network control node only needs to deploy dual-call AS.
  • the related technology needs to trigger the called color ringback AS and the calling color ringing AS at the same time, which causes waste of the playing of the called side sounding resources, and the embodiment of the present invention only needs the double calling AS according to the priority.
  • the selection trigger is called the playback AS or the calling playback AS, which greatly saves the playback resources.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the CRBT service implementation system, apparatus, and method provided by the embodiments of the present invention have the following beneficial effects: separating the call and the CRBT playback, effectively avoiding a single point of failure, and improving the security of the CRBT service.

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Abstract

本发明实施例公开了一种彩铃业务实现系统、装置及方法，其中，彩铃业务实现系统，包括：第一服务器和第二服务器，其中，上述第一服务器，设置为响应主叫终端的呼叫，接续被叫终端；以及触发上述第二服务器向上述主叫终端播放彩铃；上述第二服务器，设置为响应上述第一服务器的触发，向上述主叫终端播放彩铃。通过本发明实施例，提高了彩铃业务的安全性，降低了网络部署成本。

Description

彩铃业务实现系统、装置及方法 技术领域
本发明涉及通信领域，具体而言，涉及一种彩铃业务实现系统、装置及方法。
背景技术
随着IP多媒体子系统(IP Multimedia Subsystem，简称为IMS)的应用和智能终端的普及，宽带彩铃业务也得到普遍的应用。而目前的IMS核心网用户业务签约，都是通过用户归属服务器(Home Subscriber Server，简称为HSS)签约模板来实现，也就是说每一个应用服务器(Application Server，简称为AS)都要负责一次主叫终端到被叫终端的呼叫接续过程，即基于IMS网络的彩铃AS，除了负责放音功能，还要负责呼叫接续、呼转等功能。
上述方案中，在彩铃AS出现故障时，会导致呼叫不能接通的问题，即网络中的“单点故障”。为了增强系统的安全性、稳定性和容灾处理能力，现网中多引进多个彩铃AS节点来实现冗余，这种冗余的方案会增加运营商的投资。
从部署上来看，上述方案实现复杂。例如，在主叫终端签约主叫彩铃业务，同时被叫终端签约被叫彩铃业务的情况下，在上述方案中，IMS核心网呼叫控制节点和彩铃业务的接口需要分别部署主叫彩铃AS和被叫彩铃AS的地址，方案实现上比较繁琐。
针对相关技术中彩铃业务实现复杂、安全性不高的问题，目前尚未提出有效的解决方案。
发明内容
针对相关技术中彩铃业务实现复杂、安全性不高的问题，本发明实施例提供了一种彩铃业务实现系统、装置及方法，以至少解决上述问题。
根据本发明的一个实施例，提供了一种彩铃业务实现系统，包括：第一服务器和第二服务器，其中，上述第一服务器，设置为响应主叫终端的呼叫，接续被叫终端；以及触发上述第二服务器向上述主叫终端播放彩铃；上述第二服务器，设置为响应上述第一服务器的触发，向上述主叫终端播放彩铃。
播放的彩铃包括：上述主叫终端预设的主叫彩铃和上述被叫终端预设的被叫彩铃；上述第一服务器，还设置为根据预设规则确定向上述主叫终端播放上述主叫彩铃还是上述被叫彩铃，以及在触发上述第二服务器向上述被叫终端播放彩铃时，指示确定播放的彩铃；或者，上述第二服务器，还设置为根据上述预设规则确定向上述主叫终端播放上述主叫彩铃还是上述被叫彩铃。
上述预设规则包括：上述主叫彩铃的优先级和上述被叫彩铃的优先级；其中，当上述主叫彩铃的优先级高于上述被叫彩铃的优先级，向上述主叫终端播放上述主叫彩铃；当上述被叫彩铃的优先级高于上述被叫彩铃的优先级，向上述主叫终端播放上述被叫彩铃。
根据本发明的另一个实施例，提供了一种第一服务器，包括：通信接口，设置为与IP多媒体子系统以及第二服务器通信，其中，上述第二服务器设置为向终端放音；第一处理器，设置为响应主叫终端的呼叫，接续被叫终端；第二处理器，设置为触发上述第二服务器向上述主叫终端播放彩铃。
上述第二处理器，还设置为根据预设规则确定向上述主叫终端播放主叫彩铃还是被叫彩铃，以及在触发上述第二服务器向上述被叫终端播放彩铃时，指示确定播放的彩铃；其中，上述主叫彩铃为上述主叫终端预设的彩铃，上述被叫彩铃为上述被叫终端预设的彩铃。
上述预设规则包括：上述主叫彩铃的优先级和上述被叫彩铃的优先级；其中，当上述主叫彩铃的优先级高于上述被叫彩铃的优先级，向上述主叫终端播放上述主叫彩铃；当上述被叫彩铃的优先级高于上述被叫彩铃的优先级，向上述主叫终端播放上述被叫彩铃。
根据本发明的再一个实施例，提供了一种彩铃业务实现方法，包括：第一服务器响应主叫终端的呼叫，接续被叫终端；上述第一服务器触发第二服务器向上述主叫终端播放彩铃，其中，上述第二服务器设置为响应上述第一服务器的触发，向上述主叫终端播放彩铃。
上述方法还包括：上述第一服务器根据预设规则确定向上述主叫终端播放主叫彩铃还是被叫彩铃；其中，上述主叫彩铃为上述主叫终端预设的彩铃，上述被叫彩铃为上述被叫终端预设的彩铃；上述第一服务器在触发上述第二服务器向上述被叫终端播放彩铃时，指示确定播放的彩铃。
上述预设规则包括：上述主叫彩铃的优先级和上述被叫彩铃的优先级；其中，当上述主叫彩铃的优先级高于上述被叫彩铃的优先级，向上述主叫终端播放上述主叫彩铃；当上述被叫彩铃的优先级高于上述被叫彩铃的优先级，向上述主叫终端播放上述被叫彩铃。
第一服务器响应主叫终端的呼叫，接续被叫终端，包括：上述第一服务器响应上述主叫终端通过IP多媒体子系统发起的上述呼叫，通过上述IP多媒体子系统接续上述被叫终端。
触发第二服务器向所述主叫终端播放彩铃之前，还包括：所述第一服务器确定是否播放彩铃；当确定播放彩铃时，所述第一服务器触发第二服务器向所述主叫终端播放彩铃。
上述第一服务器确定是否播放彩铃，包括：上述第一服务器接收上述被叫终端发送的第一消息，其中，上述第一消息设置为指示上述被叫终端的状态；当上述第一消息指示上述被叫终端为空闲状态时，上述第一服务器确定播放彩铃。
上述第一服务器触发第二服务器向上述主叫终端播放彩铃，包括：上述第一服务器向上述第二服务器发起呼叫请求，其中，上述呼叫请求中携带有上述主叫终端的信息。
根据本发明的再一个实施例，提供了一种彩铃业务实现装置，位于第一服务器，包括：接续模块，设置为响应主叫终端的呼叫，接续被叫终端；触发模块，设置为触发第二服务器向上述主叫终端播放彩铃，其中，上述第二服务器设置为响应上述第一服务器的触发，向上述主叫终端播放彩铃。
还包括第一确定模块，还设置为根据预设规则确定向上述主叫终端播放主叫彩铃还是被叫彩铃；其中，上述主叫彩铃为上述主叫终端预设的彩铃，上述被叫彩铃为上述被叫终端预设的彩铃；上述触发模块，还设置为在触发上述第二服务器向上述被叫终端播放彩铃时，指示确定播放的彩铃。
上述预设规则包括：上述主叫彩铃的优先级和上述被叫彩铃的优先级；其中，当上述主叫彩铃的优先级高于上述被叫彩铃的优先级，向上述主叫终端播放上述主叫彩铃；当上述被叫彩铃的优先级高于上述被叫彩铃的优先级，向上述主叫终端播放上述被叫彩铃。
上述接续模块，设置为响应上述主叫终端通过IP多媒体子系统发起的上述呼叫，通过上述IP多媒体子系统接续上述被叫终端。
上述装置还包括：第二确定模块，设置为确定是否播放彩铃。
上述第二确定模块，包括：接收单元，设置为接收上述被叫终端发送的第一消息，其中，上述第一消息设置为指示上述被叫终端的状态；确定单元，设置为当上述第一消息指示上述被叫终端为空闲状态时，确定播放彩铃。
上述触发模块，设置为向上述第二服务器发起呼叫请求，其中，所述呼叫请求中携带有所述主叫终端的信息。
通过本发明实施例，第一服务器设置为响应主叫终端的呼叫，接续被叫终端；以及触发第二服务器向上述主叫终端播放彩铃；第二服务器，设置为响应第一服务器的触发，向上述主叫终端播放彩铃。从而，将呼叫和彩铃播放分离，能够有效避免单点故障，提高了彩铃业务的安全性。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据本发明实施例的彩铃业务实现系统的示意图；
图2是根据本发明实施例的第一服务器的结构框图；
图3是根据本发明实施例的彩铃业务实现方法的流程图；
图4是根据本发明实施例的彩铃业务实现装置的结构框图；
图5是根据本发明实施例优选的彩铃业务实现系统的示意图；
图6是根据本发明实施例的被叫双呼AS呼叫信令流程图；
图7根据本发明实施例的主叫双呼AS呼叫信令流程图；以及
图8是根据本发明实施例主叫彩铃和被叫彩铃共存时双呼AS呼叫放音的信令流程图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
图1是根据本发明实施例的彩铃业务实现系统的示意图，如图1所示，该系统主要包括：第一服务器1和第二服务器2，其中，第一服务器1，设置为响应主叫终端的呼叫，接续被叫终端；以及触发第二服务器2向上述主叫终端播放彩铃；第二服务器2，设置为响应第一服务器1的触发，向上述主叫终端播放彩铃。
通过本发明实施例，第一服务器设置为响应主叫终端的呼叫，接续被叫终端；以及触发第二服务器向上述主叫终端播放彩铃；第二服务器，设置为响应第一服务器的触发，向上述主叫终端播放彩铃。从而，将呼叫和彩铃播放分离，能够有效避免单点故障，提高了彩铃业务的安全性。并且，在网络部署时，只需对第一服务器进行冗余，降低了网络部署成本。
在本发明实施例的一个实施方式中，第一服务器1还可以确定是否播放彩铃，当确定播放彩铃时，触发第二服务器2向上述主叫终端播放彩铃。
相关技术中，需要同时触发被叫彩铃AS和主叫彩铃AS，而需要播放铃音只会主叫彩铃或被叫彩铃之一，这就造成一侧放音资源占用的浪费。在本发明实施例的一个优选实施方式中，播放的彩铃包括：主叫终端预设的主叫彩铃和被叫终端预设的被叫彩铃；第一服务器1，还设置为根据预设规则确定向主叫终端播放主叫彩铃还是被叫彩铃，以及在触发第二服务器向被叫终端播放彩铃时，指示确定播放的彩铃。或者，也可以由第二服务器确定要播放的彩铃，第二服务器2，还设置为根据预设规则确定向主叫终端播放主叫彩铃还是被叫彩铃。
在本发明实施例的一个优选实施方式中，上述预设规则可以包括：主叫彩铃的优先级和被叫彩铃的优先级。其中，当主叫彩铃的优先级高于被叫彩铃的优先级，可以向主叫终端播放主叫彩铃；当被叫彩铃的优先级高于被叫彩铃的优先级，可以向主叫终端播放被叫彩铃。当然，本发明实施例不限于此。
图2是根据本发明实施例的第一服务器的结构框图，如图2所示，第一服务器可以包括：通信接口210、第一处理器220和第二处理器230。其中，通信接口210、第一处理器220和第二处理器230相互连接。其中，通信接口210，设置为与IP多媒体子系统以及第二服务器通信，其中，第二服务器设置为向终端放音；第一处理器220， 设置为响应主叫终端的呼叫，接续被叫终端；第二处理器230，设置为触发第二服务器向主叫终端播放彩铃。
在本发明实施例的一个实施方式中，第二处理器230还可以确定是否播放彩铃，当确定播放彩铃时，触发第二服务器向上述主叫终端播放彩铃。
相关技术中，需要同时触发被叫彩铃AS和主叫彩铃AS，而需要播放铃音只会主叫彩铃或被叫彩铃之一，这就造成一侧放音资源占用的浪费。在本发明实施例的一个优选实施方式中，第二处理器230，还设置为根据预设规则确定向主叫终端播放主叫彩铃还是被叫彩铃，以及在触发第二服务器向被叫终端播放彩铃时，指示确定播放的彩铃；其中，主叫彩铃为主叫终端预设的彩铃，被叫彩铃为被叫终端预设的彩铃。
在本发明实施例的一个优选实施方式中，上述预设规则可以包括：主叫彩铃的优先级和被叫彩铃的优先级。其中，当主叫彩铃的优先级高于被叫彩铃的优先级，向上述主叫终端播放主叫彩铃；当被叫彩铃的优先级高于被叫彩铃的优先级，向主叫终端播放被叫彩铃。
图3是根据本发明实施例的彩铃业务实现方法的流程图，如图3所示，该方法主要包括步骤S302至步骤S304。
步骤S302，第一服务器响应主叫终端的呼叫，接续被叫终端。
步骤S304，第一服务器触发第二服务器向主叫终端播放彩铃，其中，第二服务器设置为响应第一服务器的触发，向主叫终端播放彩铃。
相关技术中，需要同时触发被叫彩铃AS和主叫彩铃AS，而需要播放铃音只会主叫彩铃或被叫彩铃之一，这就造成一侧放音资源占用的浪费。在本发明实施例的一个优选实施方式中，上述方法还可以包括：第一服务器根据预设规则确定向主叫终端播放主叫彩铃还是被叫彩铃；其中，主叫彩铃为主叫终端预设的彩铃，被叫彩铃为被叫终端预设的彩铃；第一服务器在触发第二服务器向被叫终端播放彩铃时，指示确定播放的彩铃。
在本发明实施例的一个优选实施方式中，上述预设规则可以包括：主叫彩铃的优先级和被叫彩铃的优先级。其中，当主叫彩铃的优先级高于被叫彩铃的优先级，向主叫终端播放主叫彩铃；当被叫彩铃的优先级高于被叫彩铃的优先级，向主叫终端播放被叫彩铃。
在本发明实施例的一个实施方式中，在上述步骤S302中，第一服务器可以响应主叫终端通过IP多媒体子系统发起的呼叫，通过IP多媒体子系统接续被叫终端。
在本发明实施例的一个实施方式中，第一服务器还可以判断是否播放彩铃。
在本发明实施例的一个优选实施方式中，第一服务器可以接收被叫终端发送的第一消息，其中，第一消息设置为指示被叫终端的状态；当第一消息指示被叫终端为空闲状态时，第一服务器确定播放彩铃。
在本发明实施例的一个实施方式中，在上述步骤S306中，第一服务器可以向第二服务器发起呼叫请求，其中，呼叫请求中携带有主叫终端的信息。
图4是根据本发明实施例的彩铃业务实现装置的结构框图，位于第一服务器，该装置可以包括：接续模块410、触发模块420。其中，接续模块410，设置为响应主叫终端的呼叫，接续被叫终端；触发模块420，与接续模块410相连接，设置为触发第二服务器向主叫终端播放彩铃，其中，第二服务器设置为响应第一服务器的触发，向主叫终端播放彩铃。
相关技术中，需要同时触发被叫彩铃AS和主叫彩铃AS，而需要播放铃音只会主叫彩铃或被叫彩铃之一，这就造成一侧放音资源占用的浪费。在本发明实施例的一个优选实施方式中，还可以包括第一确定模块，还设置为根据预设规则确定向主叫终端播放主叫彩铃还是被叫彩铃；其中，主叫彩铃为主叫终端预设的彩铃，被叫彩铃为被叫终端预设的彩铃；触发模块420，还设置为在触发第二服务器向被叫终端播放彩铃时，指示确定播放的彩铃。
在本发明实施例的一个优选实施方式中，预设规则可以包括：主叫彩铃的优先级和被叫彩铃的优先级；其中，当主叫彩铃的优先级高于被叫彩铃的优先级，向主叫终端播放主叫彩铃；当被叫彩铃的优先级高于被叫彩铃的优先级，向主叫终端播放被叫彩铃。
在本发明实施例的一个优选实施方式中，接续模块410，设置为响应主叫终端通过IP多媒体子系统发起的呼叫，通过IP多媒体子系统接续被叫终端。
在本发明实施例的一个优选实施方式中，上述装置还可以包括第二确定模块，设置为确定是否播放彩铃。
在本发明实施例的一个实施方式中，第二确定模块可以包括：接收单元，设置为接收被叫终端发送的第一消息，其中，第一消息设置为指示被叫终端的状态；确定单元，设置为当第一消息指示被叫终端为空闲状态时，确定播放彩铃。
在本发明实施例的一个优选实施方式中，触发模块可以设置为向第二服务器发起呼叫请求，其中，该呼叫请求中携带有主叫终端的信息。
可以预料的是，上述方法和装置可以通过计算机程序单元实现。
下面对本发明实施例的优选实施方式进行描述。
在该优选实施方式中，将彩铃AS分解为彩铃放音AS(相当于上述的第二服务器)和彩铃双呼AS(相当于上述的第一服务器)，其中，彩铃放音AS只负责放音功能，彩铃双呼AS负责呼叫接续和呼转等呼叫相关功能。针对网络单点故障问题，只需要对彩铃双呼AS实现冗余，在保证系统的安全的基础上，极大的减少了运营商的投资浪费，节省了运营商的开支。
核心网控制节点的接口只需要部署双呼AS。同时在业务触发方式上，相关技术中需要同时触发被叫彩铃AS和主叫彩铃AS，就会造成被叫侧放音资源占用的浪费，而本优选实施方式只需要双呼AS根据优先级来选择触发是被叫放音AS或者主叫放音AS，极大节省了放音资源。
彩铃双呼AS可以作为被叫双呼AS和主叫双呼AS。
主叫双呼AS实现方法包括：主叫终端发起到被叫终端的呼叫，主叫侧服务呼叫回话控制功能(Serving Call Session Control Function,简称为SCSCF)通过初始过滤准则评估主叫用户签约了主叫彩铃业务，则把呼叫发送到主叫双呼AS，主叫双呼AS呼出经被叫侧核心网等到达被叫终端。被叫终端振铃，振铃消息到达主叫双呼AS，再由主叫双呼AS起到放音AS的呼叫。放音AS获得主叫用户的彩铃信息后，和媒体服务器建立连接得到协商后的彩铃会话描述协议(:Session Description Protocol，简称为SDP)，通过振铃消息将彩铃SDP发送到主叫端，主叫终端和媒体服务器协商结束，放音AS开始向主叫播放主叫彩铃。当被叫应答时，主叫双呼AS发送取消消息到放音AS，放音AS中断和媒体服务器的连接，主叫彩铃停止播放，主叫双呼AS重新发起主被叫媒体协商，通话过程建立。
被叫双呼AS实现方法包括：主叫终端发起到被叫终端的呼叫，被叫侧SCSCF通过初始过滤准则评估被叫用户签约了被叫彩铃业务，则把呼叫发送到被叫双呼AS，被 叫双呼AS呼出到被叫终端。被叫终端振铃，振铃消息到达被叫双呼AS，再由被叫双呼AS发起到放音AS的呼叫。放音AS获得被叫用户的彩铃信息后，和媒体服务器建立连接得到协商后的被叫彩铃SDP，通过振铃消息将被叫彩铃SDP发送到主叫端，放音AS开始向主叫播放被叫彩铃。当被叫应答时，被叫双呼AS发送取消消息到放音AS，放音AS中断和媒体服务器的连接，彩铃停止播放，被叫双呼AS重新发起主被叫媒体协商，通话过程建立。
在该优选实施方式中，主叫双呼AS(或者被叫双呼AS)实现彩铃业务的步骤如下：
步骤A：主叫双呼AS(或者被叫双呼AS)收到核心网SCSCF发起的呼叫，转发呼叫到核心网。
步骤B：被叫终端空闲状态下，被叫开始振铃，发送振铃消息到主叫双呼AS(或者被叫双呼AS)。
步骤C：主叫双呼AS(或者被叫双呼AS)收到振铃消息后，发起新的一路呼叫到放音AS。
步骤D：放音AS查询数据库获得被叫用户的彩铃信息，将主叫终端和媒体服务器协商后的SDP信息通过振铃消息带到主叫双呼AS(或者被叫双呼AS)，主叫双呼AS(或者被叫双呼AS)透传此振铃消息到主叫侧，主叫和放音AS协商结束，放音AS向主叫播放彩铃。
步骤E：被叫应答，主叫双呼AS(或者被叫双呼AS)发取消消息到放音AS，放音AS停止播放彩铃，主叫双呼AS(或者被叫双呼AS)重新发起主被叫的媒体协商，主被叫开始通话。
图5是根据本发明实施例优选的彩铃业务实现系统的示意图，如图5所示，其中UEA、UEB分别表示主叫终端和被叫终端；代理呼叫会话控制功能(Proxy-CSCF，简称为P-CSCF)、询问呼叫会话控制功能(Interrogating CSCF，简称为I-CSCF)、S-CSCF是IMS网络的呼叫/会话控制功能节点，HSS记录用户的注册和业务签约信息。彩铃双呼AS和彩铃放音AS表示彩铃的应用服务器。其中主叫终端和被叫终端都注册到IMS核心网网络，IMS的呼叫/会话控制节点之间通过会话初始协议(Session Initiation Protocol，简称为SIP)交互，彩铃双呼AS通过SIP消息分别和S-CSCF、彩铃放音AS交互，彩铃放音AS业务触发后，播放彩铃音频流(RTP)到主叫终端。
图6是根据本发明实施例的被叫双呼AS呼叫信令流程图，图7根据本发明实施例的主叫双呼AS呼叫信令流程图，其中省略了核心网之间的信令交互，其中图7和图6基本相同，不再赘述。如图6所示，该方法包括：
步骤1～3：主叫终端UEA发起呼叫，经由核心网到达被叫双呼AS，被叫双呼AS呼出经核心网到UEB。
步骤4～6：被叫状态空闲发180消息到被叫双呼AS，被叫双呼AS向被叫侧发送180的PRACK响应，后续收到被叫侧的200PRACK消息。
步骤7～11：被叫双呼AS，发起新的一路呼叫到彩铃放音AS，其中INVITE消息里带主叫侧的SDP信息。彩铃放音AS回180响应，其中180消息里面携带和主叫协商后的彩铃SDP信息，被叫双呼AS向放音AS发送180的PRACK响应，后续收到放音AS的200PRACK消息。
步骤12～14：被叫双呼AS将放音AS的SDP消息通过180消息带到主叫终端，主叫终端知晓被叫振铃，放音AS开始向主叫终端播放彩铃。
步骤15～16：被叫双呼AS收到被叫回200应答消息，被叫双呼AS回ACK响应
步骤17～20：被叫双呼AS发送CANCEL消息到彩铃放音AS，放音AS停止播放彩铃。
步骤21～27：被叫双呼AS发空的REINVITE消息到被叫侧，被叫终端回200应答消息，其中消息里面带有被叫的SDP信息。被叫双呼AS通过UPDATE消息将被叫的SDP更新到主叫侧，主叫终端将协商后的SDP消息通过200UPDATE消息回送到被叫双呼AS，被叫双呼AS通过ACK消息将协商后的SDP更新到被叫终端，主被叫协商结束。被叫双呼AS通知主叫被叫已经应答，主被叫开始通话。
步骤28～31：主叫挂机，发送BYE消息到被叫双呼AS，被叫双呼AS发BYE消息到被叫终端，主被叫通话结束。
图8是根据本发明实施例主叫彩铃和被叫彩铃共存时双呼AS呼叫放音的信令流程图，如图8所示，包括：
步骤1～4：主叫终端UEA发起呼叫，经由核心网到达彩铃双呼AS，彩铃双呼AS呼出经核心网到UEB。被叫状态空闲发180消息到被叫双呼AS，被叫双呼AS向被叫侧发送180的PRACK响应，后续收到被叫侧的200PRACK消息。
步骤5～7：双呼AS根据被叫彩铃和主叫彩铃的优先级别选择行呼叫触发到主叫放音AS或者被叫放音AS(其中图中实线表示主叫彩铃优先，，如果被叫优先级高则走虚线流程)，通过180消息获得和主叫终端协商后的彩铃媒体信息。
步骤8：双呼AS通过180消息带彩铃媒体经核心网发送到主叫终端，放音AS开始向主叫播放彩铃。
从以上的描述中，可以看出，本发明实施例实现了如下技术效果：只需要对彩铃双呼AS实现冗余，在保证系统的安全的基础上，极大的减少了运营商的投资浪费，节省了运营商的开支。核心网控制节点的接口只需要部署双呼AS。同时在业务触发方式上，相关技术中需要同时触发被叫彩铃AS和主叫彩铃AS，就会造成被叫侧放音资源占用的浪费，而本发明实施例只需要双呼AS根据优先级来选择触发是被叫放音AS或者主叫放音AS，极大节省了放音资源。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实用性
如上所述，本发明实施例提供的彩铃业务实现系统、装置及方法，具有以下有益效果：将呼叫和彩铃播放分离，能够有效避免单点故障，提高了彩铃业务的安全性。

Claims (20)

  1. 一种彩铃业务实现系统，包括：第一服务器和第二服务器，其中，
    所述第一服务器，设置为响应主叫终端的呼叫，接续被叫终端；以及触发所述第二服务器向所述主叫终端播放彩铃；
    所述第二服务器，设置为响应所述第一服务器的触发，向所述主叫终端播放彩铃。
  2. 根据权利要求1所述的系统，其中，播放的彩铃包括：所述主叫终端预设的主叫彩铃和所述被叫终端预设的被叫彩铃；
    所述第一服务器，还设置为根据预设规则确定向所述主叫终端播放所述主叫彩铃还是所述被叫彩铃，以及在触发所述第二服务器向所述被叫终端播放彩铃时，指示确定播放的彩铃；或者
    所述第二服务器，还设置为根据所述预设规则确定向所述主叫终端播放所述主叫彩铃还是所述被叫彩铃。
  3. 根据权利要求2所述的系统，其中，所述预设规则包括：所述主叫彩铃的优先级和所述被叫彩铃的优先级；其中，当所述主叫彩铃的优先级高于所述被叫彩铃的优先级，向所述主叫终端播放所述主叫彩铃；当所述被叫彩铃的优先级高于所述被叫彩铃的优先级，向所述主叫终端播放所述被叫彩铃。
  4. 一种第一服务器，包括：
    通信接口，设置为与IP多媒体子系统以及第二服务器通信，其中，所述第二服务器设置为向终端放音；
    第一处理器，设置为响应主叫终端的呼叫，接续被叫终端；
    第二处理器，设置为触发所述第二服务器向所述主叫终端播放彩铃。
  5. 根据权利要求4所述的第一服务器，其中，所述第二处理器，还设置为根据预设规则确定向所述主叫终端播放主叫彩铃还是被叫彩铃，以及在触发所述第二服务器向所述被叫终端播放彩铃时，指示确定播放的彩铃；其中，所述主叫彩铃为所述主叫终端预设的彩铃，所述被叫彩铃为所述被叫终端预设的彩铃。
  6. 根据权利要求5所述的第一服务器，其中，所述预设规则包括：所述主叫彩铃的优先级和所述被叫彩铃的优先级；其中，当所述主叫彩铃的优先级高于所述被叫彩铃的优先级，向所述主叫终端播放所述主叫彩铃；当所述被叫彩铃的优先级高于所述被叫彩铃的优先级，向所述主叫终端播放所述被叫彩铃。
  7. 一种彩铃业务实现方法，包括：
    第一服务器响应主叫终端的呼叫，接续被叫终端；
    所述第一服务器触发第二服务器向所述主叫终端播放彩铃，其中，所述第二服务器设置为响应所述第一服务器的触发，向所述主叫终端播放彩铃。
  8. 根据权利要求7所述的方法，其中，还包括：
    所述第一服务器根据预设规则确定向所述主叫终端播放主叫彩铃还是被叫彩铃；其中，所述主叫彩铃为所述主叫终端预设的彩铃，所述被叫彩铃为所述被叫终端预设的彩铃；
    所述第一服务器在触发所述第二服务器向所述被叫终端播放彩铃时，指示确定播放的彩铃。
  9. 根据权利要求8所述的方法，其中，所述预设规则包括：所述主叫彩铃的优先级和所述被叫彩铃的优先级；其中，当所述主叫彩铃的优先级高于所述被叫彩铃的优先级，向所述主叫终端播放所述主叫彩铃；当所述被叫彩铃的优先级高于所述被叫彩铃的优先级，向所述主叫终端播放所述被叫彩铃。
  10. 根据权利要求7至9中任一项所述的方法，其中，第一服务器响应主叫终端的呼叫，接续被叫终端，包括：
    所述第一服务器响应所述主叫终端通过IP多媒体子系统发起的所述呼叫，通过所述IP多媒体子系统接续所述被叫终端。
  11. 根据权利要求7至9中任一项所述的方法，其中，触发第二服务器向所述主叫终端播放彩铃之前，还包括：
    所述第一服务器确定是否播放彩铃；
    当确定播放彩铃时，所述第一服务器触发第二服务器向所述主叫终端播放彩铃。
  12. 根据权利要求11所述的方法，其中，所述第一服务器确定是否播放彩铃，包括：
    所述第一服务器接收所述被叫终端发送的第一消息，其中，所述第一消息设置为指示所述被叫终端的状态；
    当所述第一消息指示所述被叫终端为空闲状态时，所述第一服务器确定播放彩铃。
  13. 根据权利要求7至9中任一项所述的方法，其中，所述第一服务器触发第二服务器向所述主叫终端播放彩铃，包括：
    所述第一服务器向所述第二服务器发起呼叫请求，其中，所述呼叫请求中携带有所述主叫终端的信息。
  14. 一种彩铃业务实现装置，位于第一服务器，包括：
    接续模块，设置为响应主叫终端的呼叫，接续被叫终端；
    触发模块，设置为触发第二服务器向所述主叫终端播放彩铃，其中，所述第二服务器设置为响应所述第一服务器的触发，向所述主叫终端播放彩铃。
  15. 根据权利要求14所述的装置，其中，
    还包括：第一确定模块，还设置为根据预设规则确定向所述主叫终端播放主叫彩铃还是被叫彩铃；其中，所述主叫彩铃为所述主叫终端预设的彩铃，所述被叫彩铃为所述被叫终端预设的彩铃；
    所述触发模块，还设置为在触发所述第二服务器向所述被叫终端播放彩铃时，指示确定播放的彩铃。
  16. 根据权利要求15所述的装置，其中，所述预设规则包括：所述主叫彩铃的优先级和所述被叫彩铃的优先级；其中，当所述主叫彩铃的优先级高于所述被叫彩铃的优先级，向所述主叫终端播放所述主叫彩铃；当所述被叫彩铃的优先级高于所述被叫彩铃的优先级，向所述主叫终端播放所述被叫彩铃。
  17. 根据权利要求14至16中任一项所述的装置，其中，所述接续模块，设置为响应所述主叫终端通过IP多媒体子系统发起的所述呼叫，通过所述IP多媒体子系统接续所述被叫终端。
  18. 根据权利要求14至16中任一项所述的装置，其中，还包括：第二确定模块，设置为确定是否播放彩铃。
  19. 根据权利要求18所述的装置，其中，所述第二确定模块，包括：
    接收单元，设置为接收所述被叫终端发送的第一消息，其中，所述第一消息设置为指示所述被叫终端的状态；
    确定单元，设置为当所述第一消息指示所述被叫终端为空闲状态时，确定播放彩铃。
  20. 根据权利要求14至16中任一项所述的装置，其中，所述触发模块，设置为向所述第二服务器发起呼叫请求，其中，所述呼叫请求中携带有所述主叫终端的信息。
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