WO2007068207A1 - Procede, systeme et terminal destines a fournir un signal de rappel en temps reel - Google Patents

Procede, systeme et terminal destines a fournir un signal de rappel en temps reel Download PDF

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Publication number
WO2007068207A1
WO2007068207A1 PCT/CN2006/003399 CN2006003399W WO2007068207A1 WO 2007068207 A1 WO2007068207 A1 WO 2007068207A1 CN 2006003399 W CN2006003399 W CN 2006003399W WO 2007068207 A1 WO2007068207 A1 WO 2007068207A1
Authority
WO
WIPO (PCT)
Prior art keywords
ring back
back tone
called
tone
terminal
Prior art date
Application number
PCT/CN2006/003399
Other languages
English (en)
French (fr)
Inventor
Zhengwei Wang
Jian Liu
Qian Sun
Weijie Wang
Original Assignee
Huawei Technologies Co., Ltd.
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
Priority claimed from CN2005101209208A external-priority patent/CN1859478B/zh
Priority claimed from CNB2005101213010A external-priority patent/CN100493120C/zh
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to CNA2006800119283A priority Critical patent/CN101156427A/zh
Priority to EP06828317.5A priority patent/EP1890472B1/en
Publication of WO2007068207A1 publication Critical patent/WO2007068207A1/zh
Priority to US12/003,921 priority patent/US8478246B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/42025Calling or Called party identification service
    • H04M3/42085Called party identification service
    • H04M3/42093Notifying the calling party of information on the called or connected party
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/42017Customized ring-back tones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/436Arrangements for screening incoming calls, i.e. evaluating the characteristics of a call before deciding whether to answer it
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/16Communication-related supplementary services, e.g. call-transfer or call-hold
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2203/00Aspects of automatic or semi-automatic exchanges
    • H04M2203/65Aspects of automatic or semi-automatic exchanges related to applications where calls are combined with other types of communication
    • H04M2203/651Text message transmission triggered by call
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2207/00Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place
    • H04M2207/18Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place wireless networks

Definitions

  • the present invention relates to a ring tone providing technology in a communication network, and in particular to a method, system and terminal for providing a ring back tone in a communication network.
  • GSM global mobile communication
  • CDMA code division multiple access
  • the calling user encounters this situation for the first time, he may actually think that the called user is unable to connect or is talking to someone, as prompted by the prompt.
  • people who have known for a long time will know that the appearance of such a prompt is actually caused by the rejected user's refusal to answer.
  • the caller can hear the ringback tone of the called party in the standby state. In fact, refusing to answer a call is considered rude, often affecting the feelings between the host and the called user. Even if the called user calls back to the calling user to solve the problem, it will still not be effective due to lack of time. ideal.
  • RBTS ring tone server
  • the ring tone server sends a ringback tone customized by the called user to the calling terminal.
  • the called user can meet different personalization needs of the user to a certain extent according to personal preference, or according to the calling number, or according to the time to make different ring back tones.
  • these ringback tones are It is pre-customized, and it is impossible to send different ring back tones in real time according to the actual situation at the time to flexibly meet the needs of end users. Summary of the invention
  • the embodiment of the present invention provides a method for providing a real-time ring back tone in a communication network, so that the called user can send different ring back tones in real time according to the current situation, including:
  • a method for providing real-time ring back tone in a communication network comprising the following steps:
  • the embodiment of the present invention further provides a system for providing real-time ring back tone in a communication network, including a calling exchange center, a called switching center, a calling terminal, and a called terminal, and the calling and called terminals pass the master and the called terminal.
  • Calling the switching center to establish a call request the system also includes:
  • a ring back tone unit configured to store and play a real-time ring back tone, find a corresponding ring back tone according to the received ring back tone indication value, and play the call to the calling terminal in real time;
  • the called terminal is configured to send a ring back tone indication value to the ring back tone unit.
  • the embodiment of the invention further provides a terminal, including an information transceiving unit, a ring back tone indicating unit and a main control unit,
  • the information transceiver unit is configured to transmit the received information to the main control unit, and send the information to the outside under the control of the main control unit;
  • the main control unit is configured to: when it is determined that the call request of the calling terminal is received, perform a call connection operation, and notify the ring back tone indication unit;
  • the ring back tone indicating unit is configured to send a ring back tone indication value by the information transceiving unit according to the received notification.
  • the ringback tone indication value may be sent, and the ringback tone unit sends the ringback tone to the called party in real time according to the ringback tone indication value. terminal. Therefore, the called user can send different ring back tones to the calling terminal in real time according to the situation at the time, fully satisfying the personalized needs of the user, and further improving the communication service quality. For example, the called user can promptly and reasonably send the call to the caller through the real-time ringback tone for reasons of rejection. Users, to avoid misunderstandings between each other; and, the called user can express the mood, status, etc. to the calling user through the real-time ringback tone.
  • FIG. 1A is a schematic structural diagram of a system according to Embodiment 1 of the present invention.
  • FIG. 1B is a signaling flowchart of Embodiment 1 of the present invention.
  • FIG. 2A is a structural view of a system according to a second embodiment of the present invention.
  • 3A is a structural view of a system according to a third embodiment of the present invention.
  • Embodiment 3B is a signaling flowchart of Embodiment 3 of the present invention.
  • FIGS. 4A to 4B are flowcharts of signaling according to Embodiment 4 of the present invention.
  • FIG. 5 is a signaling flowchart of Embodiment 5 of the present invention. detailed description
  • the called terminal when the called terminal receives the incoming call request of the calling terminal, the called terminal may send a ring back tone indication value to the network side, and the ring back tone unit of the network side indicates according to the ring back tone.
  • the value sends the corresponding ring back tone to the calling terminal in real time.
  • the called user can register the real-time ring back tone service by signing to the business hall, or register the service by dialing a special number or through the Internet.
  • the ringback tone indication value may be a ringback tone identifier or a cause value. The following two cases are respectively described.
  • the ring back tone indication value is a ring back tone identifier
  • the ringback tone is empty.
  • NULL corresponding to the set default ringback tone or the system's traditional ringback tone.
  • the default ringback tone or the traditional ringback tone can be sent to the calling terminal by the ringback tone unit.
  • the default ringback tone can be set for all calling terminals. In this case, only the same ringback tone is used for any calling terminal; the default ringback tone can also be set only for individual calling terminals.
  • a caller-default ringback tone correspondence table may be established according to the calling identifier, as shown in Table 2. In the table, the calling terminal identifier is the communication number (MSISDN) of the calling user. Thus, the RBTS will determine the default real-time ringback tone based on the calling terminal identity.
  • the default ringback tone can be set for all called terminals. In this case, only the same ringback tone is used for any called terminal; the default ringback tone can also be set only for individual called terminals.
  • a called ringback tone correspondence table may be established according to the called identifier, as shown in Table 3.
  • the called terminal identifier is the communication number (MSISDN) of the called user. In this way, the RBTS will determine the default real-time ringback tone based on the called terminal identity.
  • the corresponding real-time ringback tone is played according to the ringback tone identifier, such as the real-time ringback tone 1 ⁇ 5 in Table 1, and these real-time ringback tones may have a rejection
  • the corresponding voice prompt content of the reason such as the real-time ring back tone 1 has "the user you dialed is in a meeting" and the like.
  • all real-time ringback tones not only have voice prompt content, but also voice prompts, music, songs, movies, and/or dialogues, etc., the purpose of which is that the called user can promptly and reasonably refer to when rejecting the call.
  • the calling user explains the reason why the call cannot be answered, thereby avoiding misunderstanding or stagnation between the calling user and the called user.
  • a ringback tone to play a real-time ringback tone when the call is not rejected, such as expressing the current situation, such as mood, in real time between friends, thereby more flexibly satisfying the individual needs of the customer and improving customer satisfaction.
  • Embodiment 2 The ringback tone indication value is a cause value
  • the reason value-ringback tone correspondence table is set and saved in the ringback tone unit, and the reason for the rejection is to be rejected (for example, a meeting is being held, another phone is being answered, etc.) or other reasons are set to be different respectively. Value, and then select different ringback tone identifiers according to the reason value, as shown in Table 4:
  • the cause value is null (NULL), which corresponds to the set default ringback tone identifier or the system's traditional ringback tone identifier.
  • NULL null
  • the corresponding real-time ring back tone is played according to the reason value, such as the real-time ring back tone 1 - 5 in Table 1.
  • These real-time ring back tones may have corresponding voice prompt contents about the reason for rejection, such as real-time back.
  • Ringtone 1 has "The user you are calling is in a meeting" and so on.
  • all real-time ringback tones not only have voice prompt content, but also voice prompts, music, songs, movies, and/or dialogues, etc., so that the called user can explain to the calling user promptly and reasonably why the call cannot be answered. , thereby avoiding misunderstandings or gaps between the calling user and the called user.
  • the real-time ring back tone in the embodiment of the present invention may be provided by a provider or uploaded by a user, and stored in a ring back tone unit, which may be a separate ring back tone server RBTS or set in the switching center MSC.
  • the ring back tone unit stores the ring back tone data represented by the real time ring back tone indicator.
  • the ring back tone unit receives the ring back tone indication value of the called terminal, the corresponding real time ring back tone is found according to the ring back tone indication value and sent to the calling terminal.
  • the called user can also automatically or manually transmit different ring back tone indication values to the network side according to different time periods. For example, after 10 pm, the called terminal can automatically feed back a ringback tone indication value; during normal working hours, the called terminal can automatically feed back another ringback tone indication value; on Sunday, the called terminal can automatically feed back another different one. Ringback tone indication value. If the user is answering a call, the user may manually feed back a ringback tone indication value, and the ringback tone corresponding to the ringback tone indication value may be a voice prompt indicating that the call is being received. It can be seen that the ring back tone indication value can vary according to time, place, person, event, mood, and the like.
  • the embodiment of the invention further provides a technical solution for the called terminal to send a ringback tone indication value to the called switching center (T-MSC).
  • T-MSC switching center
  • the following describes two methods of how to transmit the ringback tone indication value to the network side, but is not limited thereto.
  • the ring back tone indication value is sent by DTMF.
  • the called terminal directly transmits the ringback tone indication value to the T-MSC through DTMF mode.
  • the key can send the ringback tone indication value.
  • the T-MSC After the T-MSC receives the character of a certain length (for example, 2 digits long) by parsing the DTMF signal, the T-MSC transmits the obtained ringback tone indication value to the ringback tone unit.
  • the called terminal sends a character of the ring back tone indication value to the T-MSC through the Start DTMF message.
  • the button can be pressed.
  • the "2" button on the mobile terminal can send a character of the ringback tone indication value.
  • you can request additional confirmation keys, such as the "#" key, that is, you need to press "2#” to send the ringback tone indication value 2.
  • the called terminal After receiving the DTMF Ack returned by the T-MSC, the called terminal sends a Stop DTMF to the end office;
  • the called terminal sends a character of the ringback tone indication value to the T-MSC through the Start DTMF. After receiving the DTMF Ack returned by the called end office, it sends a Stop DTMF to the end office until all ringback tones are received. The indication value is sent to the T_MSC.
  • the called mobile terminal can also send the ringback tone indication value by using Start DTMF to send the characters of several lengths at a time.
  • the second scheme sends a ringback tone indication value through UUS (User to User Singal) signaling or a Disconnect message:
  • the content of the Disconnect message is as follows: 3GPP TS 24.008: DISCONNECT message content (mobile station to network direction) (Mobile content of Disconnect message in the direction of the network)
  • the called terminal can transmit a command code representing the ringback tone indication value to the T-MSC through some cells in the Disconnect message, such as a User-user cell or a Facility cell, and the T-MSC obtains by parsing the above cell.
  • the corresponding ringback tone indication value can be transmitted to the T-MSC through some cells in the Disconnect message, such as a User-user cell or a Facility cell, and the T-MSC obtains by parsing the above cell.
  • the corresponding ringback tone indication value can be transmitted to the T-MSC through some cells in the Disconnect message, such as a User-user cell or a Facility cell.
  • the called terminal can also transmit the corresponding ringback tone indication value information to the T-MSC by using some cells in the response message.
  • the called terminal can also send the ringback tone indication value to the called switching center through the Connect message.
  • the Connect message content is as follows: 3GPP TS 24.008: CONNECT message content (mobile station to network direction) IEI cell type/parameter
  • the called terminal passes certain cells in the Cconnect message, such as User-user cells or
  • the Facility cell may transmit a command code representing the ringback tone indication value to the T-MSC, and the T-MSC obtains the corresponding ringback tone indication value by parsing the above cell.
  • the called terminal obtains the ringback tone indication value may be obtained by prompting the user to input; or may be corresponding to the corresponding ringback tone indication value when the called terminal presets the predetermined state, and the called terminal according to the current terminal state.
  • the corresponding ring back tone indication value is determined; or it may be acquired by a process triggered by an incoming call event.
  • the terminal prompts the user to input when receiving an incoming call: When the called terminal receives an incoming call, a dialog box pops up, allowing the called user to input a ringback tone indication value, or display a ringback tone list for the user.
  • the corresponding ringback tone indication value is obtained; or the called user opens a dialog box through the preset menu when the incoming call arrives, and enters a ringback through the dialog box.
  • the tone indicates the value, or prompts the user to select a ringback tone from a ringback tone list.
  • the called terminal can return a ring back tone indication value corresponding to the mode to the network side according to the terminal state or mode preset by the user. For example, if the user is in a meeting, the terminal can be set to the conference mode, and the corresponding ringback tone indication value in the mode is preset.
  • the conference mode is automatically returned.
  • the ring tone indication value is sent to the network side without being called
  • the user manually inputs the ringback tone indication value; for example, setting the called terminal to be a state before 8:00 in the morning and after 10:00 in the night, and corresponding to the ringback tone indication value 18, so that the terminal is before 8:00 in the morning, at night.
  • the ringback tone indication value 18 is automatically obtained, and the ringback tone corresponding to the ringback tone indication value may be: "The called terminal automatically prompts you: the called user is at rest, if there is no special Important things, please contact the next day, thank you!.
  • FIG. 1A is a schematic structural diagram of a system according to Embodiment 1 of the present invention.
  • the system includes not only a 0-MSC, a T-MSC, a home location register (HLR) of a called terminal, but also a ringback for storing and playing a ringback tone.
  • Sound Server (RBTS) This embodiment adopts a GSM network, and the basic idea can be conveniently applied to a CDMA system or a fixed communication network system, the difference being only in the specific message.
  • the MSC here mainly performs the service switching function and the call control function, wherein the 0_MSC is the calling user's MSC or the gateway mobile switching center (GMSC); the T-MSC is the called user's visited MSC, and mainly stores the current information of the called user. And complete the connection between the called users during the call.
  • the HLR mainly stores basic information of the mobile terminal, including real-time ring back tone service subscription information and the like.
  • FIG. 1B is a signaling flowchart of Embodiment 1 of the present invention.
  • Step 101 When the 0-MSC receives the telephone call request from the autonomous calling terminal, sends a request SR1 for obtaining the routing information of the called user to the HLR to which the called user belongs, and the request includes information such as the called number of the called user, The called number here is also the called MSISDN.
  • Steps 102-103 the HLR learns that the called user is a real-time ringback tone service subscription user according to the called number; and the HLR sends a request for acquiring the called roaming number to the T-MSC, and the T-MSC allocates a mobile to the called user.
  • the client roaming number (MSRN), and then the MSRN is sent to the HLR.
  • Step 104 The HLR sends the called MSRN and the real-time ring back tone service subscription information to the 0-MSC through the SRI_Ack message.
  • Step 105 The O-MSC sends an initial address message (IAM:) to the T_MSC.
  • IAM here includes the calling number, the called number, and the called MSRN.
  • Steps 106-108 the T-MSC sends the IAM to the called terminal (Called); the T-MSC pages the called party, and when the called terminal is in an idle state, the called state information is completely eliminated by the address.
  • the address completion message is sent to the O-MSC; if the current state of the called terminal is not idle, such as busy, shutdown, or out of service area, the T-MSC transparently transmits the call to the calling terminal through the 0-MSC, indicating that the user is busy, Voice prompts that are turned off or not in the service area.
  • Step 109 The O-MSC sends an IAM to the RBTS, and sends information such as the calling number and the called number to the RBTS through the IAM.
  • the O-MSC controls the playback of the ring back tone.
  • Step 110 The RBTS obtains a default ring back tone, and then sends an ACM to the O-MSC.
  • the O-MSC first notifies the RBTS to send a default ringback tone, that is, the ringback tone corresponding to the ringback tone indication value when it is empty.
  • the RBTS may search for the default ring back tone customized by the called user according to the called number.
  • Step 111 The RBTS plays the default ring back tone to the calling terminal through the O-MSC, and the O-MSC shields the traditional ring back tone played by the T-MSC.
  • Step 112 The called terminal acquires a ringback tone indication value and sends the ringback tone indication value to the T-MSC, where the T-MSC automatically disconnects from the called terminal, that is, the called terminal is no longer vibrated.
  • Bell reminder ; of course, the connection between the called terminal and the called terminal may not be automatically disconnected, but the called user may press the on-hook button to disconnect the called terminal from the T-MSC, or press the answer button to implement the calling and called calls.
  • Road connections are handled according to existing processes.
  • the called terminal obtains the ringback tone indication value, which may be obtained by prompting the called user input, or may be automatically obtained by the terminal according to the corresponding ringback tone indication value set for the current state or the mode of the terminal.
  • Steps 113-114 the T-MSC sends the ringback tone indication value to the O-MSC; 0- The MSC then sends the ringback tone indication value to the RBTS.
  • Step 115 The RBTS searches for a corresponding real-time ring back tone according to the ring back tone indication value, and then sends an ACM to the calling switch center.
  • Step 116 The RBTS plays the real-time ring back tone to the calling terminal through the O-MSC, and stops playing the default ring back tone.
  • the real-time ring back tone includes the audio interpretation of the called user rejecting the call, thus, When done in a timely manner, it can greatly avoid misunderstanding, estrangement or unhappiness between the called user and the calling user.
  • Step 117 When the calling user hangs up the call, the O-MSC sends a release message REL ( Release ) signaling to the RBTS, and immediately cuts off the route between the RBTS and the RBTS, thereby stopping the real-time broadcast to the calling party. Ringback tone.
  • the 0-MSC can also preset the play time value of the real-time ring back tone, for example, 1 minute. After the time arrives, the MSC automatically cuts off the route between the 0-MSC or the RBTS.
  • FIG. 2A is a block diagram of a system structure according to a second embodiment of the present invention.
  • the difference between FIG. 1 and FIG. 1A is that the RBTS of the second embodiment is only connected to the T-MSC, and the RBTS of the first embodiment is only connected to the OJ SC, that is, the second embodiment is
  • the T-MSC controls the playback of the real-time ring back tone.
  • Embodiment 2B is a signaling flowchart of Embodiment 2 of the present invention.
  • Steps 201 to 208 are basically the same as steps 101 to 108 of the first embodiment. The only difference is that the called user does not have a custom default ring back tone, but the T-MSC sends a traditional ring back tone, that is, "beep...beep.. Of course, the same can be applied to the called terminal to customize the corresponding default ring back tone.
  • Step 209 The T-MSC sends a traditional ring back tone to the O-MSC, and the traditional ring back tone is finally transparently transmitted by the O-MSC to the calling terminal.
  • Steps 210 to 211 the called terminal acquires a ringback tone indication value and sends the ringback tone indication value to the T-MSC, and the T_MSC sends the ringback tone indication value to the RBTS.
  • the called terminal obtains the ringback tone indication value, which may be obtained by prompting the called user input, or may be automatically obtained by the terminal according to the corresponding ringback tone indication value set for the current state or the mode of the terminal.
  • Step 212 The RBTS searches for a corresponding real-time ringback tone according to the ringback tone indication value, and then sends an ACM to the T-MSC.
  • Step 213 The RBTS plays the real-time ring back tone to the calling terminal through the T-MSC; 0-MSC, and stops playing the traditional ring back tone.
  • the RBTS can also be directly played to the O-MSC.
  • the RBTS is generally required to have a call control function. Since the solution is well known to those skilled in the art, it will not be described again.
  • Step 214 when the calling user hangs up the phone, the 0-MSC receives the hang up message and sends it to the T-MSC.
  • Step 215 can also be performed after the real-time ringback tone is played for an appropriate time.
  • Step 215 The T-MSC sends REL signaling to the RBTS, and immediately cuts off the route between the T-MSC and the RBTS, thereby stopping playing the real-time ring back tone to the calling terminal.
  • FIG. 3A is a schematic structural diagram of a system according to Embodiment 3 of the present invention.
  • the system includes only 0-MSC, T-MSC, and HLR, and does not have an RBTS, because the T-MSC uses a T-MSC to save and play a real-time ringback tone.
  • FIG. 3B is a signaling flowchart of Embodiment 3 of the present invention.
  • Steps 301-308 are basically the same as steps 101-108 of the first embodiment. The only difference is that the called user does not have a customized default ringback tone, but the T-MSC (built-in ringback tone unit) sends the traditional ringback tone. That is, "beep...beep...,, the ringtone. Based on the same reason, the traditional ringback tone can also be sent by the 0-MSC.
  • the T-MSC built-in ringback tone unit
  • Step 309 The T_MSC transparently transmits the traditional ring back tone to the calling terminal through the 0_MSC.
  • Step 310 The called terminal acquires a ringback tone indication value and sends the ringback tone indication value to the T_MSC; the called terminal obtains the ringback tone indication value may be obtained by prompting the called user input, or may be based on the current terminal The corresponding ringback tone indication value set by the status or mode is automatically obtained by the terminal.
  • Step 311 The T-MSC searches for the corresponding real-time ringback tone according to the ringback tone indication value, and then the T-MSC stops the normal ringback tone from the real-time ringback tone of the calling terminal.
  • the T-MSC since the T-MSC is used to store and play the real-time ring back tone, the cost of the end office modification may be high.
  • Step 312 When the calling user hangs up the phone, the 0-MSC sends the REL signaling to the T-MSC, and immediately cuts off the route between the 0-MSC and the T-MSC, thereby stopping the real-time ringback tone from being played to the calling party. It is also possible to play the real-time ringback tone for a suitable time, for example 1 minute, the T-MSC automatically stops playing the ringback tone. And after the real-time ringback tone is stopped, the embodiments of the present invention can select whether to play a traditional prompt tone to the O-MSC, such as "the called user cannot be connected," and the like.
  • FIG. 4A and FIG. 4B are flowcharts of signaling according to Embodiment 4 of the present invention, and a system block diagram thereof is shown in FIG. 1A.
  • the fourth embodiment before playing the default ring back tone, it is determined whether the called terminal sends the ring back tone indication value within a predetermined time period, and if the ring back tone indication value is received, the real time ring back tone is played, otherwise the default ringback tone is played. sound.
  • Steps 401 to 408 are the same as steps 101 to 108 of the first embodiment.
  • Step 409 Before informing the RJBTS to play the default ring back tone, the OJVISC reserves a period of time, for example, 5 seconds, to determine whether the called terminal sends the ringback tone indication value, and needs to block the traditional ringback tone played by 1 ⁇ €. . If the ringback tone indication value is received, step 410 and its subsequent flow as shown in FIG. 4A are performed. Otherwise, step 420 and its subsequent steps as shown in FIG. 4B are performed. Of course, if the called user does not have a custom default ring back tone, the traditional ring back tone can be temporarily blocked by OJVISC for a period of time. The advantage of this is that it avoids the caller hearing two ringback tones, because that This may cause confusion or discomfort to the calling user.
  • Step 410 The MSC sends an IAM to the RBTS, and sends information such as the calling number, the called number, and the ringback tone indication value to the RBTS through the IAM.
  • Step 411 The RBTS searches for a corresponding real-time ring back tone according to the called number, and then sends an ACM to the 0-MSC.
  • Step 412 The RBTS plays the real-time ring back tone to the calling terminal through the 0-MSC.
  • Step 413 when the calling user hangs up the phone (may also be a real-time ringback tone after playing for a certain period of time), 0—the MSC sends REL signaling to the RBTS, and immediately cuts off the route between the RBTS and the terminal, thereby stopping the call to the calling party. Put a real-time ringback tone. '
  • step 420 the MSC does not receive the ringback tone indication value sent by the called terminal within a predetermined period of time, and then sends an IAM to the RBTS, and the calling number and the called party are sent through the IAM.
  • Information such as numbers are sent to RBTS
  • Step 421 The RBTS obtains a default ring back tone, and then sends an ACM to the O-MSC.
  • the RBTS may search for the default ring back tone customized by the called user according to the called number.
  • Step 422 The RBTS plays the default ring back tone to the calling terminal through the O-MSC.
  • the playing is stopped, and the O-MSC disconnects the connection with the calling terminal.
  • the O-MSC may or may not receive it.
  • the scheme for receiving the ringback tone indication value is as shown in step 423 of FIG. 4B and its subsequent steps.
  • Steps 423 to 425 when the RBTS sends a default ringback tone to the calling terminal through the O-MSC, the T-MSC receives the ringback tone indication value sent by the called terminal; the T_MSC forwards the ringback tone indication value to the 0_MSC. 0_MSC then sends the ringback tone indication value to the RBTS.
  • Step 426 the RBTS searches for a corresponding real-time ring back tone according to the ring back tone indication value, and then
  • 0__MSC sends ACM.
  • Step 427 The RBTS plays the real-time ring back tone to the calling terminal through the O-MSC, and stops playing the default ring back tone.
  • Step 428 when the calling user hangs up the phone, or the real-time ring back tone is played for a certain period of time,
  • the 0_MSC sends REL signaling to the RBTS and immediately cuts off the route with the BTS, thereby stopping the playback of the real-time ringback tone to the calling terminal.
  • the purpose of the above four embodiments is to explain the called user's rejection of the answer.
  • the called user can also send different ringback tone indication values in real time according to the actual situation at the time, and the network side selects the corresponding real-time ringback tone to send to the calling user according to the ringback tone indication value, and plays the appropriate After the time, answer the call again.
  • the above mentioned friends send the real-time ringback tone of the current state (mood, etc.) to flexibly meet the user's needs, or notify the calling user to wait for a moment's ringback tone demand.
  • the specific scheme is as described in Embodiment 5.
  • FIG. 5 is a signaling flowchart of Embodiment 5 of the present invention, where steps 501-516 are substantially the same as steps 101-116 in Embodiment 1, and therefore are not described again. The only difference is that in step 512, after the called terminal sends the ringback tone indication value, the T-MSC must maintain the connection with the called terminal.
  • Steps 517 ⁇ 518 after the called terminal answers, the T-MSC sends the response message ANM to the 0-MSC.
  • Step 519 The O-MSC sends REL signaling to the RBTS, and immediately cuts off the route between the O-MSC and the RBTS, thereby stopping the real-time ringback tone from being played to the calling party.
  • Step 520 Establish a normal voice connection between the master and the called party through the O-MSC and the T-MSC.
  • the RBTS plays the default ring back tone (or the traditional ring back tone) for a predetermined period of time: the called terminal still does not send the ring back tone indication value, or is If the calling terminal still does not answer, or the calling terminal is still not on-hook; then the calling switching center and/or the called switching center notifies the ring back tone unit to stop playing the ring back tone and terminate the call connection.
  • the present invention does not conflict with the existing customized ring back tone service, and those skilled in the art can easily implement the real-time ring back tone service based on the original customized ring back tone service.
  • an embodiment of the present invention further provides a terminal, including an information transceiver unit, a ring back tone indication unit, and a main control unit.
  • a terminal including an information transceiver unit, a ring back tone indication unit, and a main control unit.
  • the information transceiver unit is configured to transmit the received information to the main control unit, and send the information to the outside under the control of the main control unit;
  • the main control unit is configured to determine, when receiving the call request of the calling terminal, perform a call connection operation, and notify the ring back tone indication unit;
  • the ring back tone indication unit is configured to send a ring back tone indication via the information transceiver unit according to the received notification
  • the value of the ringback tone is the ringback tone identifier, or the cause value.

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Description

一种提供实时回铃音的方法、 系统及一种终端
本申请要求于 2005 年 12 月 17 日提交中国专利局、 申请号为 200510120920.8、 发明名称为 "一种提供实时回铃音的方法和系统" 的中国 专利申请的优先权, 以及 2005 年 12 月 25 日提交中国专利局、 申请号为 200510121301.0, 发明名称为 "一种提供实时回铃音的方法和系统" 的中国 专利申请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及一种通信网络中的铃音提供技术, 具体涉及一种在通信网络 中提供回铃音的方法、 系统及一种终端。
背景技术
在现有的通信网络中, 无论是固定通信网络、 全球移动通信(GSM ) 网 络还是码分多址(CDMA )移动通信网络, 当被叫用户接收到一主叫用户的 来电后, 被叫用户可以选 4 接听, 也可以选择不接听甚至拒绝(用户可以通 过按挂机键来拒绝来电)。 因为我们经常会遇到这种情况:一个来电到达时正 赶上被叫用户很忙, 例如, 忙于接听另夕 I、一个重要电话, 或者忙于处理一个 重要的事情, 或者正在开会。 这时, 被叫用户一般采用拒接方式, 由现有技 术的被叫交换中心向主叫用户播放"你拨打的电话暂时无法接通",或"您所播 打的用户正在通话中 "等一成不变的提示音。
如果是主叫用户首次遇到这种情况, 他可能真的认为是象提示音提示的 那样, 被叫用户无法接通或者正在和别人通话。 但是, 久而久之人们都会知 道, 这种提示音的出现, 其实就是被叫用户拒绝接听引起的, 况且在被叫用 户拒绝接听之前, 主叫可以听到被叫处于待接状态的回铃音。 实际上, 拒绝 接听电话会被认为是不礼貌的, 往往影响到主、 被叫用户之间的感情, 即使 被叫用户事后回电话给主叫用户进行解幹,仍会由于不及时导致效果不理想。
另外, 现有技术中还存在用户定制回铃音的技术方案, 即一般由被叫用 户签约回铃音业务后,当主叫终端呼叫该被叫终端且被叫终端处于空闲状态, 则由回铃音服务器(RBTS ) 向主叫终端发送由被叫用户定制的回铃音。 在 这里, 被叫用户可以根据个人爱好、 或根据主叫号码、 或根据时间制定不同 的回铃音, 从而在一定程度上满足用户的个性化需求。 但是, 这些回铃音都 是预先定制的, 而无法根据当时的实际情况实时地发送不同的回铃音以灵活 地满足终端用户的需求。 发明内容
有鉴于此,本发明实施例提供一种于通信网络中提供实时回铃音的方法, 使得被叫用户可根据当时情况实时地发送不同的回铃音, 包括:
一种在通信网络中提供实时回铃音的方法, 包括以下步據:
根据接收到呼叫被叫终端的呼叫请求, 建立主被叫终端的呼叫连接; 接收来自被叫终端的回铃音指示值, 根据该回铃音指示值寻到对应的回 铃音, 实时地播放给主叫终端。
本发明实施例还提供一种在通信网络中提供实时回铃音的系统,包括主叫交 换中心、 被叫交换中心, 主叫终端, 被叫终端, 所述主、 被叫终端通过主、 被叫交换中心建立起呼叫请求, 该系统还包括:
回铃音单元, 用于存储和播放实时回铃音, 根据接收到的回铃音指示值 寻到对应的回铃音并实时地播放给主叫终端;
所述被叫终端, 用于将回铃音指示值发送至回铃音单元。
本发明实施例还提供一种终端, 包括信息收发单元, 回铃音指示单元和 主控单元,
所述信息收发单元, 用于将接收到的信息传送给主控单元, 在主控单元 的控制下对外发送信息;
所述主控单元, 用于确定接收到主叫终端的呼叫请求时, 执行呼叫接续 操作, 并通知回铃音指示单元;
所述回铃音指示单元, 用于根据接收到的通知经信息收发单元发送回铃 音指示值。
通过本发明实施例的技术方案, 被叫终端收到主叫终端的呼叫请求时可 以发送回铃音指示值, 且回铃音单元根据该回铃音指示值实时地发送回铃音 给被叫终端。 从而, 被叫用户可根据当时情况向主叫终端实时地发送不同的 回铃音, 充分满足了用户的个性化需求, 并进一步提升了通信服务质量。 诸 如被叫用户可以将因故拒接的理由及时、 合理地通过实时回铃音发送给主叫 用户, 以避免彼此之间的误会; 并且, 被叫用户可以通过实时回铃音向主叫 用户表达当时心情、 状态等。 附图说明
图 1A.为本发明的实施例一的系统结构简图;
图 1B为本发明的实施例一的信令流程图;
图 2A为本发明的实施例二的系统结构筒图;
图 2B为本发明的实施例二的信令流程图;
图 3A为本发明的实施例三的系统结构筒图;
图 3B为本发明的实施例三的信令流程图;
图 4A ~图 4B为本发明的实施例四的信令流程图;
图 5为本发明的实施例五的信令流程图。 具体实施方式
为使本发明的技术方案及优点更加清楚明白,以下参照附图并举实施例, 对本发明进一步详细说明。
在本发明实施例通中, 当被叫终端收到主叫终端的来电请求时, 被叫终 端可以发送一个回铃音指示值给网絡侧, 网络侧的回铃音单元根据该回铃音 指示值实时地发送对应的回铃音给主叫终端。
对于实时回铃音业务, 被叫用户可以通过到营业厅签约的方式进行实时 回铃音业务的注册, 也可以通过拨打特殊号码或者通过互连网的方式进行该 业务的注册。
上述回铃音指示值可以是回铃音标识, 也可以是原因值, 下面就这两种 情况分别说明。
实施例一: 回铃音指示值是回铃音标识
为了实现实时回铃音业务, 要在回铃音单元根据回铃音标识保存对应的 回铃音, 如表 1所示: 回铃音标识 回铃音
1 实时回铃音 1
2 实时回铃音 2
3 实时回铃音 3
4 实时回铃音 4
5 实时回铃音 5
Figure imgf000006_0001
若被叫终端没有发送或者发送回铃音标识无效时, 即回铃音标识为空
( NULL ), 对应的是设置的默认回铃音或者系统的传统回铃音, 此时可由回 铃音单元发送默认回铃音或传统回铃音给主叫终端。
默认回铃音是可以针对所有主叫终端来设置, 这时, 对于任何主叫终端 都仅对应同一个回铃音; 默认回铃音也可以是仅针对个别主叫终端来设置, 这时, 可以根据主叫标识建立一个主叫一默认回铃音对应表, 如表 2所示。 表中, 主叫终端标识是主叫用户的通信号码( MSISDN )。 这样, 在 RBTS将 根据主叫终端标识来确定默认的实时回铃音。
Figure imgf000006_0002
表 2 默认回铃音是可以针对所有被叫终端来设置, 这时, 对于任何被叫终端 都仅对应同一个回铃音; 默认回铃音也可以是仅针对个别被叫终端来设置, 这时, 可以根据被叫标识建立一个被叫一默认回铃音对应表, 如表 3所示。 表 3中, 被叫终端标识是被叫用户的通信号码(MSISDN )。 这样, 在 RBTS 将根据被叫终端标识来确定默认的实时回铃音。 被叫标识 默认回铃音标识
13923812345 1
13323622336 2
82882233 3
表 3
而若被叫终端发送了回铃音标识, 则根据该回铃音标识播放对应的实时 回铃音, 如表 1中的实时回铃音 1 ~ 5, 这些实时回铃音中可具有关于拒接原 因的相应语音提示内容, 例如实时回铃音 1具有"您所拨打的用户正在开会" 等。 当然, 所有实时回铃音不仅具有语音提示内容, 还可以是语音提示、 音 乐、 歌曲、 影视和 /或对白等等, 其目的是被叫用户在拒接电话时, 还可以及 时、 合理地向主叫用户解释无法接听的原因, 从而避免了主叫用户和被叫用 户之间的发生误会或者隔阂。
实际上, 也可以在非拒接电话的时候, 发送回铃音标识来播放实时回铃 音, 如在朋友之间实时表达当时情况, 如心情等, 从而更加灵活地满足客户 个性化需求, 提高客户满意度。
实施例二: 回铃音指示值是原因值
与上一实施例类似, 在回铃音单元设置并保存原因值 -回铃音对应表, 即将拒接原因 (例如正在开会, 正在接听其他电话等等)或其他当时情况分 别设为不同的原因值,再根据该原因值选择不同的回铃音标识,如表 4所示:
Figure imgf000007_0001
表 4 若被叫终端没有或者还没有发送原因值时, 即原因值为空(NULL ), 对 应的是设置的默认回铃音标识或者系统的传统回铃音标识, 此时可由回铃音 单元发送默认回铃音或传统回铃音发送给主叫终端。 而若被叫终端发送了原 因值,则根据该原因值播放对应的实时回铃音,如表 1中的实时回铃音 1 - 5, 这些实时回铃音中可具有关于拒接原因的相应语音提示内容, 例如实时回铃 音 1具有"您所拨打的用户正在开会"等。 当然, 所有实时回铃音不仅具有语 音提示内容, 还可以是语音提示、 音乐、 歌曲、 影视和 /或对白等等, 其目的 是被叫用户及时、 合理地向主叫用户解释无法接听的原因, 从而避免了主叫 用户和被叫用户之间的发生误会或者隔阂。
实际上, 也可以在非拒接电话的时候, 发送原因值来播放实时回铃音, 如在朋友之间实时表达当时情况, 如心情等, 从而更加灵活地满足客户个性 化需求, 提高客户满意度, 参照表 5所示。
Figure imgf000008_0001
表 5
本发明实施例中的实时回铃音可以由提供商提供或者用户上传, 并且存 储在回铃音单元中, 该回铃音单元可以是单独的回铃音服务器 RBTS, 或者 设于交换中心 MSC 中, 该回铃音单元存储有实时回铃音标识所代表的回铃 音数据。 当该回铃音单元收到被叫终端的回铃音指示值, 根据该回铃音指示 值找到对应的实时回铃音并发送给主叫终端。
实际当中, 被叫用户还可以根据自己所处不同时间段, 自动或手动向网 络侧传送不同回铃音指示值。 例如,夜晚 10点后, 被叫终端可以自动反馈一 个回铃音指示值; 正常工作时间, 被叫终端可以自动反馈另外一个回铃音指 示值; 星期天, 被叫终端可以自动反馈又一个不同的回铃音指示值。 如果用 户正在接听一个电话, 也可以由用户手动反馈一个回铃音指示值, 该回铃音 指示值对应的回铃音可以是表示正在接电话的语音提示。 可见回铃音指示值 可以根据时间、 地点、 人物、 事件、 心情等而异。 本发明实施例还提供一种被叫终端发送回铃音指示值到被叫交换中心 ( T— MSC )的技术方案。 这里, 需要在被叫终端 Called, 0— MSC (主叫交换 中心)和 /或 T— MSC (被叫交换中心)上进行适当的改造: 例如在 T—MSC 中启动拨号阶段的收号功能(现有的 MSC在拨号阶段禁止了收号功能), 在 被叫终端存储和设置用于获取和发送回铃音标识的应用程序等。 以下说明如 何将回铃音指示值发送给网络侧的两种方法, 但不限于此。
第一种方案, 通过 DTMF方式发送回铃音指示值。
A )对于固定终端来说, 操作如下:
1、被叫终端直接将回铃音指示值通过 DTMF方式传送给 T— MSC, 对于 手动发送回铃音指示值的情况, 如回铃音指示值为 1时, 可按击电话座机上 的 "Γ,键即可发送回铃音指示值 ,当然为了避免误操作,可以要求追加确认键, 如" # "键, 即需要按击" 1# "方能发送回铃音指示值, 即先按击被叫终端上的 "1"键, 再按 键。
2、 T—MSC通过解析 DTMF信号接收到一定长度 (例如长 2个数字长) 的字符后, 将得到的该回铃音指示值传送给回铃音单元。
B )对于移动终端来说, 操作如下:
1、 被叫终端通过 Start DTMF消息向 T—MSC发送回铃音指示值的一个 字符, 对于手动发送回铃音指示值的情况, 如回铃音指示值的一个字符为 2 时, 可按击移动终端上的 "2"键即可发送回铃音指示值的一个字符。 同样, 为 了避免误操作, 可以要求追加确认键, 如" # "键, 即需要按击" 2# "才能发送 回铃音指示值 2。
2、 被叫终端接收到 T—MSC返回的 DTMF Ack后, 向该端局发送一个 Stop DTMF;
3、 被叫终端再通过 Start DTMF向 T—MSC发送回铃音指示值的一个字 符, 接收到被叫端局返回的 DTMF Ack后, 向该端局发送一个 Stop DTMF, 直到将全部回铃音指示值发送至 T_MSC。 当然, 被叫移动终端也可以通过 Start DTMF一次性发送若干长度的字符的形式来发送回铃音指示值。
第二种方案,通过 UUS ( User to User Singal )信令或者分离( Disconnect ) 消息发送回铃音指示值: Disconnect 消息内容如下: 3GPP TS 24.008: DISCONNECT message content (mobile station to network direction) (移动 占到网络方向的 Disconnect 消息内容)
Figure imgf000010_0001
被叫终端通过在 Disconnect消息的某些信元, 例如 User-user信元或者 Facility 信元,可以将代表回铃音指示值的命令码传送给 T— MSC, T— MSC通过解析以 上信元得到对应的回铃音指示值。
当然, 被叫终端也可以通过应答消息中的某些信元, 来将对应的回铃音 指示值信息传送给 T— MSC。 例如, 被叫终端也可以通过 Connect消息将回铃 音指示值发送给被叫交换中心。
Connect消息内容如下: 3GPP TS 24.008: CONNECT message content (mobile station to network direction) IEI 信元 类型 /参数
是否必选 格式 长度
( Information ( Type/Reference ) ( Format ( Length
( Presence
element ) ) )
)
Call control Protocol discriminator M V 1/2 protocol discriminator 10.2
Transaction identifier Transaction identifier M V 1/2
10.3.2
Connect Message type M V 1 message type 10.4
1C Facility Facility O TLV 2-?
10.5.4.15
4D Connected subaddress Connected subaddress O TLV 2-23
10.5.4.14
7E User-user User-user 0 TLV 3-131
10.5.4.25
7F SS version SS version indicator 0 TLV 2-3
10.5.4.24
2D Stream Identifier Stream Identifier 0 TLV 3
10.5.4.28
被叫终端通过在 Cconnect消息的某些信元, 例如 User-user信元或者
Facility信元, 可以将代表回铃音指示值的命令码传送给 T—MSC , T— MSC通 过解析以上信元得到对应的回铃音指示值。
实际上, 被叫终端获取回铃音指示值可以是通过提示用户输入来获得; 也可以是在被叫终端预先设置预定的状态对应相应的回铃音指示值, 被叫终 端根据当前的终端状态而确定对应的回铃音指示值; 也可以是通过来电事件 所触发的一个过程来获取。例如,终端接到一个来电时提示用户输入的例子: 被叫终端在接收到一个来电时, 弹出一个对话框, 让被叫用户输入一个回铃 音指示值, 或者显示一个回铃音列表供用户选择, 并在用户选择对应的回铃 音后, 得到对应的回铃音指示值; 或者是被叫用户在来电到达时, 通过预先 设置好菜单打开一个对话框, 通过该对话框输入一个回铃音指示值, 或者提 示用户从一个回铃音列表中选择一个回铃音。 根据终端状态的例子: 被叫终 端可以根据用户预先设置的终端状态或模式, 向网絡侧返回一个对应于该模 式的回铃音指示值。 例如, 用户正在开会, 可以将终端设置成会议模式, 并 预先设置该模式下对应的回铃音指示值, 这种情况下, 当被叫终端接收到一 个来电后, 自动将会议模式对应的回铃音指示值发送给网络侧, 而无需被叫 用户手动地输入回铃音指示值; 还例如,设置被叫终端在早晨 8点以前, 夜晚 10点以后为一个状态, 并对应回铃音指示值 18, 这样, 终端在早晨 8点以前, 夜晚 10点以后, 接收到来电是, 自动得到回铃音指示值 18, 并且该回铃音指 示值对应的回铃音可以是: "被叫终端自动提示您: 被叫用户在休息, 如果 没有特别重要的事情, 请第二天联系, 谢谢! " 。
下面以具体实施例来说明本发明的系统和方法。
图 1A为本发明实施例一的系统结构简图, 该系统不仅包括 0—MSC、 T—MSC、 被叫终端的归属位置寄存器(HLR ), 进一步包括用于保存和播放 回铃音的回铃音服务器(RBTS )。 本实施例采用的是 GSM网絡, 其基本思 想可以艮方便地应用于 CDMA 系统或固定通信网络系统, 其区别仅仅在于 具体消息的不同。
这里的 MSC主要完成业务交换功能和呼叫控制功能,其中的 0_MSC是 主叫用户的 MSC或网关移动交换中心( GMSC ); T— MSC是被叫用户的拜访 MSC, 主要保存被叫用户的当前信息, 并在呼叫过程中完成到被叫用户之间 的接续。 HLR主要保存移动终端的基本信息, 包括实时回铃音业务签约信息 等等。
图 1B为本发明实施例一的信令流程图。
步骤 101 , 当 0—MSC接收到来自主叫终端的电话呼叫请求, 向被叫用 户归属的 HLR发送获取被叫用户的路由信息的请求 SR1,该请求包含被叫用 户的被叫号码等信息, 这里的被叫号码也就是被叫的 MSISDN。
步骤 102 ~ 103, HLR根据被叫号码得知该被叫用户为实时回铃音业务签 约用户; 且 HLR向 T—MSC发送获取被叫漫游号码的请求, T— MSC为被叫 用户分配一个移动客户漫游号码(MSRN ), 然后将 MSRN发送给 HLR。
步骤 104, HLR通过 SRI—Ack消息将被叫的 MSRN和实时回铃音业务 签约信息发送给 0—MSC。
步骤 105, O— MSC向 T_MSC发送一个初始地址消息 (IAM:)。 这里的 IAM包括主叫号码、 被叫号码和被叫 MSRN。
步骤 106 - 108, T— MSC将该 IAM发送给被叫终端 (Called ); T—MSC 寻呼被叫, 并在被叫终端处于空闲状态时, 将被叫的状态信息通过地址全消 息 ACM ( Address Complete Message )发送给 O— MSC; 如果被叫终端的当前 状态不是空闲, 例如忙、 关机或不在服务区, 则 T— MSC通过 0—MSC向主 叫终端透传表示用户忙、 关机或不在服务区的语音提示。
步骤 109, O— MSC向 RBTS发送 IAM, 并通过该 IAM将主叫号码、 被 叫号码等信息发送给 RBTS。 本实施例中是由 O— MSC来控制播放回铃音的。
步骤 110, RBTS获取默认回铃音, 然后向 O— MSC发送 ACM。 这里, 当被叫终端还没有发送回铃音指示值时, O—MSC先通知 RBTS发送默认回 铃音, 即回铃音指示值为空时所对应的回铃音。 当默认回铃音是根据被叫号 码来设置时, RBTS 可以是根据该被叫号码来查找被叫用户定制的默认回铃 音。
步骤 111 , RBTS通过 O— MSC向主叫终端播放该的默认回铃音, 同时 O— MSC屏蔽 T—MSC播放的传统回铃音。
步骤 112, 被叫终端获取一个回铃音指示值并发送该回铃音指示值给 T— MSC, 这里 T—MSC—般自动断开和被叫终端的连接, 即被叫终端不再被 振铃提示; 当然也可以不自动断开和被叫终端的连接, 而是由被叫用户按挂 机键来断开被叫终端与 T—MSC的连接, 或者按接听键实现主叫与被叫的话 路连接, 即按照现有流程来处理。 被叫终端获取回铃音指示值可以是通过提 示被叫用户输入得到, 也可以是根据针对终端当前状态或所处模式设置的对 应的回铃音指示值, 由终端自动得到。
步骤 113 ~ 114, T— MSC将该回铃音指示值发送给 O— MSC; 0— MSC再 将回铃音指示值发送给 RBTS。
步驟 115, RBTS根据该回铃音指示值查找对应的实时回铃音, 然后向主 叫交换机中心发送 ACM。
步骤 116, RBTS通过 O—MSC向主叫终端播放该的实时回铃音, 同时停 止播放默认回铃音, 该实时回铃音中包含了被叫用户拒接电话的音频解释, 这样, 由于解幹得及时, 可大大避免被叫用户和主叫用户之间的发生误会、 隔阂或不快。
步骤 117, 当主叫用户挂断电话, O—MSC向 RBTS发送释放消息 REL ( Release )信令, 立即切断和 RBTS之间的路由, 从而停止向主叫播放实时 回铃音。 当然, 0—MSC还可以预设实时回铃音的播放时间值, 例如 1分钟, 时间到后 0—MSC自动切断 0— MSC或 RBTS之间的路由。
图 2A为本发明实施例二的系统结构筒图, 与图 1A不同的是, 实施例二 的 RBTS仅与 T— MSC连接, 而实施例一的 RBTS仅与 OJ SC连接, 即实 施例二由 T—MSC控制实时回铃音的播放。
图 2B为本发明实施例二的信令流程图。
步骤 201 ~ 208与实施例一的步骤 101 ~ 108基本相同, 唯一不同的是被 叫用户没有定制默认回铃音, 而是由 T— MSC发送传统的回铃音, 即"嘟… 嘟 ...,,的铃音。 当然, 也可以向实施例一一样, 被叫终端定制了对应的默认回 铃音。
步骤 209, T—MSC 向 O— MSC发送传统回铃音, 该传统回铃音最终由 O— MSC透传给主叫终端。
步骤 210 ~ 211,被叫终端获取一个回铃音指示值并发送该回铃音指示值 给 T—MSC, T_MSC再将该回铃音指示值发送给 RBTS。 被叫终端获取回铃 音指示值可以是通过提示被叫用户输入得到, 也可以是根据针对终端当前状 态或所处模式设置的对应的回铃音指示值, 由终端自动得到。
步骤 212, RBTS根据该回铃音指示值查找对应的实时回铃音, 然后向 T— MSC发送 ACM。
步骤 213, RBTS通过 T—MSC;、 0—MSC向主叫终端播放该实时回铃音, 同时停止播放传统回铃音。 当然, 也可以采用 RBTS直接向 O—MSC播放的 方案, 这时的 RBTS—般要求具有呼叫控制功能, 由于该方案属于本领域技 术人员所熟知, 故不再赘述。
步驟 214, 当主叫用户挂断电话, 0— MSC 收到该挂断信息并发送给 T—MSC。 也可以在实时回铃音播放适当的时间后执行步骤 215。
步驟 215, T— MSC向 RBTS发送 REL信令, 立即切断 T— MSC和 RBTS 之间的路由, 从而停止向主叫终端播放实时回铃音。
图 3A 为本发明实施例三的系统结构简图, 该系统仅包括 0—MSC、 T— MSC、 HLR, 而不具备 RBTS, 因为本实施例采用 T—MSC保存和播放实 时回铃音的方案。 图 3B为本发明实施例三的信令流程图。
步骤 301 - 308与实施例一的步骤 101 ~ 108基本相同, 唯一不同的是被 叫用户没有定制默认回铃音, 而是由 T—MSC (内置回铃音单元)发送传统的 回铃音, 即"嘟…嘟…,,的铃音。 基于同样的道理, 也可以由 0— MSC发送传 统的回铃音。
步骤 309, T_MSC通过 0_MSC透传传统回铃音给主叫终端。
步驟 310, 被叫终端获取一个回铃音指示值并发送该回铃音指示值给 T_MSC; 被叫终端获取回铃音指示值可以是通过提示被叫用户输入得到, 也 可以是根据针对终端当前状态或所处模式设置的对应的回铃音指示值, 由终 端自动得到。
步骤 311 , T— MSC根据该回铃音指示值查找对应的实时回铃音, 然后 T—MSC向主叫终端该的实时回铃音, 同时停止播放传统回铃音。 这里, 由于 利用 T— MSC存储和播放实时回铃音, 可能造成端局改造的成本较高。
步驟 312, 当主叫用户挂断电话, 0—MSC向 T—MSC发送 REL信令, 立即切断 0一 MSC和 T—MSC之间的路由, 从而停止向主叫播放实时回铃音。 也可以播放实时回铃音适当时间后,例如 1分钟, T— MSC自动停止播放回铃 音。 并且在停止播放实时回铃音后, 本发明各个实施例均可以选择是否向 O— MSC播放传统的提示音, 如"被叫用户无法接通,,等。
图 4A和图 4B为本发明实施例四的信令流程图, 其系统结构筒图如图 1A所示。实施例四在播放默认回铃音之前,需要在预定时间段内判断被叫终 端是否发送了回铃音指示值, 若收到回铃音指示值则播放实时回铃音, 否则 播放默认回铃音。
步骤 401 ~ 408与实施例一的步骤 101 ~ 108相同。
步骤 409, OJVISC在通知 RJBTS播放默认回铃音之前, 预留一段时间, 例如 5秒, 来判断被叫终端是否发送回铃音指示值, 并且, 需要屏蔽1 ^€ 播放的传统的回铃音。若收到回铃音指示值,则执行如图 4A所示的步驟 410 及其后续流程。 否则执行如图 4B所示的步骤 420及其后续步驟。 当然, 若 被叫用户没有定制默认回铃音, 则可由 OJVISC暂时屏蔽传统回铃音一段时 间来进行判断。 这样做的好处是, 可避免主叫用户听到两种回铃音, 因为那 样有可能引起主叫用户的混淆或者不适。
步骤 410, 0—MSC向 RBTS发送 IAM, 并通过该 IAM将主叫号码、 被 叫号码以及回铃音指示值等信息发送给 RBTS。
步骤 411 , RBTS根据被叫号码查找对应的实时回铃音, 然后向 0— MSC 发送 ACM。
步骤 412, RBTS通过 0—MSC向主叫终端播放该实时回铃音。
步骤 413 ,当主叫用户挂断电话(也可以是实时回铃音播放一定时间后), 0— MSC向 RBTS发送 REL信令, 立即切断和 RBTS之间的路由, 从而停止 向主叫 4番放实时回铃音。 '
在如图 4B所示的步骤 420 , 0—MSC在预定的时间段内未收到被叫终端 发送的回铃音指示值, 则向 RBTS发送 IAM, 并通过该 IAM将主叫号码、 被叫号码等信息发送给 RBTS„
步骤 421 , RBTS获取默认回铃音, 然后向 O— MSC发送 ACM。 当默认 回铃音是根据被叫号码来设置时, RBTS 可以是根据该被叫号码来查找被叫 用户定制的默认回铃音。
步骤 422, RBTS通过 O—MSC向主叫终端播放该默认回铃音。 至此, 就 可以作为实施例四的完整方案,当主叫挂断或者默认回铃音播放到预定时间, 则停止播放, O— MSC切断与主叫终端的连接。
当然这里播放默认回铃音时, 若被叫终端发送了回铃音指示值, O—MSC 可以接收,也可以不接收。接收回铃音指示值的方案如图 4B所示的步骤 423 及其后续步骤。
步骤 423 ~ 425,当 RBTS通过 O— MSC向主叫终端发送默认回铃音期间, T—MSC收到被叫终端发送来的回铃音指示值; T_MSC将该回铃音指示值转 送给 0_MSC; 0_MSC再将该回铃音指示值发送给 RBTS。
步驟 426, RBTS根据该回铃音指示值查找对应的实时回铃音, 然后向
0__MSC发送 ACM。
步骤 427, RBTS通过 O—MSC向主叫终端播放该的实时回铃音, 同时停 止播放默认回铃音。
步骤 428, 当主叫用户挂断电话, 或者实时回铃音播放了一定时间, 0_MSC向 RBTS发送 REL信令, 并立即切断和 BTS之间的路由, 从而停 止向主叫终端播放实时回铃音。
以上四个实施例的目的, 都是用于被叫用户对拒绝接听的解释。 但实际 上, 被叫用户还可以根据当时实际情况实时地发送不同的回铃音指示值, 网 络侧根据该回铃音指示值选择相应的实时回铃音发送给主叫用户, 在播放适 当的时间后再接听电话, 例如上文提到的朋友之间发送当时状态 (心情等) 的实时回铃音, 以灵活地满足用户的需求, 或者通知主叫用户稍等片刻的回 铃音需求, 具体方案如实施例五所述。
图 5为本发明的实施例五的信令流程图,其中步骤 501 - 516与实施例一 中的步骤 101 ~ 116基本相同, 故不再赘述。 唯一可能不同的是, 在步據 512 中, 被叫终端发送回铃音指示值后, T—MSC须保持与被叫终端的连接。
步骤 517 ~ 518, 当被叫终端应答后, T—MSC将应答消息 ANM发送给 0— MSC。
步驟 519, O— MSC向 RBTS发送 REL信令, 立即切断 O— MSC和 RBTS 之间的路由, 从而停止向主叫播放实时回铃音。
步骤 520, 通过 O—MSC和 T— MSC建立主、 被叫之间的正常话路连接。 值得一提的是, 本发明的各实施例中, 若 RBTS播放所述默认回铃音 (或 传统回铃音)达到预定时间段: 而被叫终端仍未发送回铃音指示值、或被叫终 端仍未应答、 或主叫终端仍未挂机; 则由主叫交换中心和 /或被叫交换中心通 知回铃音单元停止播放回铃音, 并终止呼叫连接。 另外, 本发明与现有定制 回铃音业务并不发生冲突 , 本领域技术人员很容易在原定制回铃音业务的基 础上, 再实现实时回铃音业务。
另外, 本发明实施例还提供了一种终端, 包括信息收发单元, 回铃音指 示单元和主控单元, 当该终端用于被叫时,
信息收发单元用于将接收到的信息传送给主控单元, 在主控单元的控制 下对外发送信息;
主控单元用于确定接收到主叫终端的呼叫请求时, 执行呼叫接续操作, 并通知回铃音指示单元;
回铃音指示单元用于根据接收到的通知经信息收发单元发送回铃音指示 值该回铃音指示值为回铃音标识, 或为原因值。
可以理解的是, 对于本领域的普通技术人员来说, 可以根据本发明的技 术方案和技术构思作出其它各种相应的改变和变形, 而所有这些改变和变形 都应属于本发明后附的权利要求的保护范围。

Claims

权 利 要 求
1、一种在通信网络中提供实时回铃音的方法, 其特征在于, 包括以下步 骤:
根据接收到呼叫被叫终端的呼叫请求, 建立主被叫终端的呼叫连接; 接收来自被叫终端的回铃音指示值, 根据该回铃音指示值寻到对应的回 铃音, 实时地播放给主叫终端。
2、 根据权利要求 1所述的提供实时回铃音的方法, 其特征在于, 所述回 铃音指示值对应的回铃音为空时, 播放默认回铃音或者传统回铃音。
3、 根据权利要求 1所述的提供实时回铃音的方法, 其特征在于, 根据接收到呼叫被叫终端的呼叫请求,建立主被叫终端的呼叫连接之前, 进一步包括: 被叫终端在网络侧进行实时回铃音业务的签约, 并将签约信息 保存在被叫终端的归属位置寄存器 HLR中;
所述建立主被叫终端呼叫连接的过程包括: 主叫终端通过主叫交换中心 请求呼叫被叫终端; 主叫交换中心向被叫终端的归属位置寄存器 HLR请求并 获得该被叫终端的该签约信息和路由信息; 主叫交换中心将该呼叫请求通过 被叫交换中心发送给被叫终端。
4、 根据权利要求 3所述的提供实时回铃音的方法, 其特征在于, 所述接收来自被叫终端的回铃音指示值的设备为回铃音单元;
所述回铃音单元被设置在被叫交换中心或者主叫交换中心内; 或者 所述回铃音单元为独立的回铃音服务器 RBTS。
5、 根据权利要求 4所述的提供实时回铃音的方法, 其特征在于, 所述回 铃音单元接收回铃音指示值的过程包括: 固定被叫终端通过 DTMF方式, 将 回铃音指示值发送给被叫交换中心, 该被叫交换中心再将该回铃音指示值直 接或间接地发送给回铃音单元。
6、 根据权利要求 4所述的提供实时回铃音的方法, 其特征在于, 所述回 铃音单元接收回铃音指示值的过程包括: 移动被叫终端通过 Start DTMF消息 一次或多次将回铃音指示值发送给被叫交换中心, 该被叫交换中心再将该回 铃音指示值直接或间接地发送给回铃音单元。
7、 根据权利要求 4所述的提供实时回铃音的方法, 其特征在于, 所述回 铃音单元接收回铃音指示值的过程包括: 被叫终端通过用户到用户信令 UUS 或者断开消息 Disconnect或者应答消息 Connect^送回铃音指示值到被叫交换 中心,该被叫交换中心再将该回铃音指示值直接或间接地发送给回铃音单元。
8、 根据权利要求 5、 6或 7所述的提供实时回铃音的方法, 其特征在于, 所述回铃音指示值由被叫用户通过被叫终端输入并发送给被叫交换中心; 或 者在被叫终端预先设置预定的状态对应相应的回铃音指示值, 被叫终端根据 当前的终端状态而确定对应的回铃音指示值, 并自动发送该回铃音指示值给 被叫交换中心。
9、 根据权利要求 5、 6或 7所述的提供实时回铃音的方法, 其特征在于, 所述回铃音指示值发送给被叫交换中心后, 被叫交换中心断开或不断开与被 叫终端的连接。
10、根据权利要求 4所述的提供实时回铃音的方法, 其特征在于,被叫交 换中心还没收到回铃音指示值之前, 由主叫交换中心和 /或被叫交换中心通知 回铃音单元播放设置的默认回铃音或系统的传统回铃音;
在被叫交换中心收到回铃音指示值之后, 根据该回铃音指示值寻到对应 的回铃音, 实时地播放给主叫终端的过程包括:
被叫交换中心将该回铃音指示值直接或间接地发送给回铃音单元, 回铃 音单元根据该回铃音指示值寻到对应的实时回铃音;
回铃音单元停止播放所述默认回铃音或传统回铃音, 并向主叫终端播放 该实时回铃音。
11、根据权利要求 4所述的提供实时回铃音的方法, 其特征在于, 被叫交 换中心获知被叫终端处于空闲状态之后的预定时间段内, 被叫交换中心和 / 或主叫交换中心先判断是否被叫终端发送了回铃音指示值, 并暂时不向主叫 终端播放任何回铃音; 若预定时间段内被叫交换中心收到回铃音指示值, 则 根据该回铃音指示值寻到对应的回铃音, 实时地播放给主叫终端, 否则通知 回铃音单元播放设置的默认回铃音或系统的传统回铃音给主叫终端; 所述根 据该回铃音指示值寻到对应的回铃音, 实时地播放给主叫终端的过程包括: 被叫交换中心将该回铃音指示值直接或间接地发送给回铃音单元, 回铃 音单元根据该回铃音指示值寻到对应的实时回铃音; 回铃音单元向主叫终端播放该实时回铃音。
12、 根据权利要求 10或 11所述的提供实时回铃音的方法, 其特征在于, 若回铃音单元播放所述默认回铃音或传统回铃音达到预定时间段: 而被叫终 端仍未发送回铃音指示值、 或被叫终端仍未应答、 或主叫终端仍未挂机; 则 由主叫交换中心和 /或被叫交换中心通知回铃音单元停止播放回铃音,并终止 呼叫连接。
13、根据权利要求 4所述的提供实时回铃音的方法, 其特征在于, 在根据 回铃音指示值寻到对应的回铃音, 实时地播放给主叫终端之后, 该方法还包 括,
当主叫终端挂机,则由主叫交换中心和 /或被叫交换中心通知回铃音单元 停止播放实时回铃音, 并终止呼叫连接; 或者
当被叫终端应答,则由主叫交换中心和 /或被叫交换中心通知回铃音单元 停止播放实时回铃音, 并接通主、 被叫终端的话路; 或者
当回铃音单元播放预定时间段的实时回铃音之后,则由主叫交换中心和 / 或被叫交换中心通知回铃音单元停止播放实时回铃音 , 并终止呼叫连接。
14、根据权利要求 4所述的提供实时回铃音的方法, 其特征在于, 所述回 铃音指示值为回铃音标识, 或为原因值。
15、 根据权利要求 14所述的提供实时回铃音的方法, 其特征在于, 当所 述回铃音指示值为原因值时,所述回铃音单元内保存原因值 -回铃音对应表; 该对应表中各原因值对应不同的回铃音标识;
所述原因值及回铃音标识针对所有主叫终端来设置, 对于任何主叫终端 都仅根据原因值来确定回铃音标识; 或者,
所述对应表中的原因值及回铃音标识针对个别主叫终端来设置, 该对应 表中增加主叫终端标识栏,并根据主叫终端标识和原因值来确定回铃音标识; 或者,
所述原因值-回铃音对应表中的原因值及回铃音标识针对所有被叫终端 来设置, 对于任何被叫终端都仅根据原因值来确定回铃音标识; 或者,
所述对应表中的原因值及回铃音标识针对个别被叫终端来设置, 该对应 表中增加被叫终端标识栏,并根据被叫终端标识和原因值来确定回铃音标识。
16、 根据权利要求 14所述的提供实时回铃音的方法, 其特征在于, 所述 原因值代表被叫用户的拒接原因或者被叫用户的当时状态。
17、 一种在通信网络中提供实时回铃音的系统, 包括主叫交换中心、 被 叫交换中心, 主叫终端, 被叫终端, 所述主、 被叫终端通过主、 被叫交换中 心建立起呼叫请求,
其特征在于, 该系统还包括:
回铃音单元, 用于存储和播放实时回铃音, 根据接收到的回铃音指示值 寻到对应的回铃音并实时地播放给主叫终端;
所述被叫终端, 用于将回铃音指示值发送至回铃音单元。
18、 根据权利要求 17所述的提供实时回铃音的系统, 其特征在于, 所述 回铃音单元被设置在被叫交换中心或主叫交换中心中; 或者
所述回铃音单元为回铃音服务器 RBTS。
19、根据权利要求 17所述的提供实时回铃音的系统, 其特征在于, 所述 被叫交换中心, 还用于在回铃音单元收到回铃音指示值后断开或不断开与被 叫终端的连接。
20、 根据权利要求 17〜19任一所述的提供实时回铃音的系统, 其特征在 于, 所述回铃音指示值为回铃音标识, 或为原因值。
21、 一种终端, 其特征在于, 包括信息收发单元, 回铃音指示单元和主 控单元
所述信息收发单元, 用于将接收到的信息传送给主控单元, 在主控单元 的控制下对外发送信息;
所述主控单元, 用于确定接收到呼叫请求时, 执行呼叫接续操作, 并通 知回铃音指示单元;
所述回铃音指示单元, 用于根据接收到的通知经信息收发单元发送回铃 音指示值。
22、根据权利要求 21所述的终端, 其特征在于, 所述回铃音指示值为回 铃音标识, 或为原因值。
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