CN100450129C - Group audible ringing tone system and its service realizing method - Google Patents
Group audible ringing tone system and its service realizing method Download PDFInfo
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- CN100450129C CN100450129C CNB2005100890004A CN200510089000A CN100450129C CN 100450129 C CN100450129 C CN 100450129C CN B2005100890004 A CNB2005100890004 A CN B2005100890004A CN 200510089000 A CN200510089000 A CN 200510089000A CN 100450129 C CN100450129 C CN 100450129C
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Abstract
The present invention provides a group ringing back tone system and the service implementation method thereof, wherein the group ringing back tone system is realized by increasing a ringing back tone platform in the service system of the existing group switchboard. The present invention has a basic principle that when a service platform of the group switchboard receives a call connecting signaling at the calling side, the call is connected to the called extension side; after the service platform of the group switchboard receives a response signaling which is returned by the called extension side, the connection between the service platform of the group switchboard and the called extension side is blocked, and the service platform of the group switchboard establishes the connection with the arranged ringing back tone platform. Then, the platform plays the ringing back tone to the calling side by the service platform of the group switchboard. Accordingly, after a calling user calls the group switchboard, the goal of playing the group ringing back tone to the calling user is realized when the extension user in the group is connected by the group switchboard.
Description
Technical Field
The present invention relates to ring back tone providing technology in communication network, and is especially one kind of group ring back tone system and its service realizing method.
Background
The group switchboard service is a service specially developed for group customers. The service assigns a common Mobile Station Integrated Services Digital Network (MSISDN) number to a group customer as the group's switchboard number. When the calling user wants to call the members in the group, the calling user only needs to call the switchboard number of the group and then can get contact with the members in the group through direct dialing extension number, voice control service or manual transfer service and the like.
The existing system for providing group switchboard service is realized by introducing a group switchboard service platform into the existing communication network, and the system structure is shown in fig. 1, and mainly comprises a calling gateway mobile switching center/mobile switching center (GMSC/MSC), a switchboard Home Location Register (HLR), a group switchboard service platform, a switching GMSC/MSC, a called extension HLR, a called extension visited MSC and the like. The mobile switchboard number is registered in the switchboard HLR and forwarded to the address of the group switchboard service platform unconditionally. The call flow based on the system is as follows: calling user dials group telephone exchange number, then calling GMSC/MSC sends routing request containing said group telephone exchange number to telephone exchange HLR; when the switchboard HLR receives the routing request and judges that the group user corresponding to the group switchboard number registers unconditional forwarding, the forwarding number which represents the address of the group switchboard service platform is directly returned to the calling GMSC/MSC. The calling GMSC/MSC connects the call to the group switchboard service platform according to the received forwarding number; then the group switchboard service platform interacts with the calling user through the processes of playing and receiving numbers, voice recognition or manual seat, etc., obtains the called extension user terminal number to be connected, and connects the call to the switching GMSC/MSC. If the called extension subscriber is the subscriber of other network, the switching GMSC/MSC connects the call to the network of other network, and the network of other network completes the call connection to the called extension subscriber; if the called extension subscriber is the home network subscriber, the switching GMSC/MSC acquires a Mobile Station Roaming Number (MSRN) from the called extension HLR, and then connects the call to the called extension visited MSC according to the acquired MSRN; the called extension visited MSC completes the call connection to the called extension user.
The system and the process realize the purpose of providing the group switchboard service for the group users. Currently, a ringback tone service for individual subscribers is rapidly developing, which replaces the traditional monotonous ringback tone by providing a piece of music or a greeting to the calling subscriber. Group users often have greater promotional needs for business development than individual users. Therefore, how to provide a personalized ring back tone service with group characteristics for group users, namely, the group ring back tone service, becomes a problem to be solved urgently at present.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a group ringback tone system, which achieves the purpose of providing a ringback tone service for group users.
In order to achieve the above object, the group ring back tone system provided by the present invention comprises: calling side call connection unit, group switchboard service platform, called side call connection unit; wherein,
the group switchboard service platform is used for sending a second call connection signaling to the called side call connection unit after receiving the first call connection signaling sent by the calling side call connection unit, and connecting the call to the called side call connection unit;
the system further comprises: the ring back tone platform is used for playing a ring back tone to the calling user terminal through the group switchboard service platform and the calling side call connection unit after receiving a ring back tone playing instruction from the group switchboard service platform;
and the group switchboard service platform is also used for blocking a conversation speech path with the called side call connection unit after receiving a connection response signaling returned by the called side call connection unit, sending a ring back tone playing instruction to the ring back tone platform and establishing connection with the ring back tone platform.
In the system, the group switchboard service platform is further used for reactivating the speech path connection with the called side call connection unit after receiving the call response signaling returned by the called side call connection unit, sending a ring back tone playing stopping instruction to the ring back tone platform and removing the connection with the ring back tone platform;
the ring back tone platform is also used for stopping playing the ring back tone to the calling user terminal after receiving the instruction of stopping playing the ring back tone from the group telephone exchange service platform.
In the above system, the calling side call connection unit includes: calling gateway mobile switching center/mobile switching center GMSC/MSC; the called side call connection unit comprises: a transfer gateway mobile switching center/mobile switching center GMSC/MSC; and the first call connection signaling is: initial address message IAM including group telephone exchange service platform address, group telephone exchange number and calling user terminal number; the second call connection signaling is: IAM containing called extension user terminal number and calling user terminal number; the continuous response signaling is as follows: address full message ACM; the ring back tone playing instruction comprises the following steps: IAM containing ring back tone platform route prefix and group telephone exchange number; the call response signaling is a response message ANM; the ring back tone playing stopping instruction comprises the following steps: the message REL is released.
In the system, the group switchboard service platform is further configured to interact with the calling user to acquire a called extension subscriber terminal number after receiving a first call connection signaling sent by the calling side call connection unit, and then send a second call connection signaling to the called side call connection unit according to the acquired called extension subscriber terminal number.
In the system, the group switchboard service platform is used for blocking a call channel with the called side call connection unit when judging that the called extension user terminal is currently in an idle state according to the called extension user terminal state information carried in the continuous response signaling after receiving the continuous response signaling returned by the called side call connection unit.
Another object of the present invention is to provide a method for implementing a group ringback tone service, which comprises the following steps:
a. after receiving a call request sent by a calling user terminal, a calling side call connection unit sends a first call connection signaling to a group mobile switchboard service platform;
b. after receiving a first call connection signaling sent by a calling side call connection unit, a group switchboard service platform sends a second call connection signaling to a called side call connection unit;
c. after receiving the second call connection signaling of the group switchboard service platform, the called side call connection unit connects the call to the called extension subscriber terminal and returns a connection response signaling to the group switchboard service platform;
d. after receiving the continuous response signaling returned by the called side call connection unit, the group switchboard service platform blocks the call channel with the called side call connection unit, sends a ring back tone playing instruction to the ring back tone platform and establishes connection with the ring back tone platform;
e. after the ring back tone platform receives the ring back tone playing instruction from the group switchboard service platform, the ring back tone is played to the calling user terminal through the group switchboard service platform and the calling side call connection unit.
In the above method, the step b further comprises: after receiving the first call connection signaling sent by the calling side call connection unit, the group switchboard service platform acquires the called extension user terminal number through interaction with the calling user, and then executes the step of sending the second call connection signaling in the step b according to the acquired called extension user terminal number.
In the above method, the step d further comprises: and d, after the group switchboard service platform receives a connection response signaling returned by the called side call connection unit, judging whether the called extension user terminal is in an idle state currently according to the called extension user terminal state information carried in the connection response signaling, and if so, executing the step of blocking the call channel in the step d.
In the above method, the step d further comprises: and d, when the group switchboard service platform receives a connection response signaling returned by the called side call connection unit, judging whether a group ring back tone service is opened aiming at the corresponding group switchboard number, if so, executing the step of blocking the call speech path in the step d.
In the above method, the step e is further followed by the step of:
f. when the called extension user answers the phone, the called call connection unit returns the call answer signaling to the group switchboard service platform;
g. after receiving the call response signaling returned by the called side call connection unit, the group switchboard service platform reactivates the call path connection with the called side call connection unit, sends a ring back tone playing stopping instruction to the ring back tone platform, and removes the connection with the ring back tone platform.
In summary, the present invention provides a group ring back tone system and a service implementation method thereof, wherein the group ring back tone system is implemented by adding a ring back tone platform in an existing group switchboard service system. The basic principle of the invention is as follows: when the group switchboard service platform receives the call connection signaling from the calling side, the call is connected to the called extension side, and when the group switchboard service platform receives the response signaling returned from the called extension side, the connection between the call path and the called extension side is blocked, and the connection between the call path and the set ring back tone platform is established, and then the ring back tone platform plays the ring back tone to the calling side through the group switchboard service platform. Therefore, the purpose of playing the ring back tone customized by the group to the calling subscriber when the calling subscriber calls the group telephone exchange and then the extension subscribers in the group are connected through the group telephone exchange is realized.
Drawings
Fig. 1 is a diagram illustrating a conventional group switchboard service system.
Fig. 2 is a structural diagram of the group ringback tone system of the present invention.
Fig. 3 is a flow chart of a group ring back tone service implementation method of the present invention.
Detailed Description
The group ring back tone system is realized by further adding a ring back tone platform on the basis of the existing group telephone exchange service system. The basic working principle of the system is as follows: when the group switchboard service platform receives the call connection signaling from the calling side, the call is connected to the called extension side, and when the group switchboard service platform receives the response signaling returned from the called extension side, the connection between the call path and the called extension side is blocked, and the connection between the call path and the set ring back tone platform is established, and then the ring back tone platform plays the ring back tone to the calling side through the group switchboard service platform.
The present invention will be described in detail below with reference to specific examples.
The structure of a group ring back tone system according to an embodiment of the present invention is shown in fig. 2, and mainly includes: calling GMSC/MSC, switchboard HLR, group switchboard service platform, transfer GMSC/MSC, called extension HLR and called extension visiting MSC, in addition, the system also includes: a ring back tone platform. Wherein,
the calling GMSC/MSC is used for sending a routing request to the switchboard HLR according to the group switchboard number carried in the request after receiving a calling request sent by the calling user terminal, and sending an Initial Address Message (IAM) containing the address of the group switchboard service platform, the group switchboard number and the calling user terminal number to the group switchboard service platform according to a forwarding number returned by the switchboard HLR, so as to connect the call to the group switchboard service platform.
The switchboard HLR is used for returning a forwarding number corresponding to the group switchboard number, namely the address of the group switchboard service platform, to the calling GMAC/MSC after receiving the routing request of the calling GMAC/MSC.
The group switchboard service platform is used for acquiring the called extension subscriber terminal number to be connected through interaction with the calling subscriber after receiving the IAM of the calling GMSC/MSC, then sending the IAM containing the called extension subscriber terminal number and the calling subscriber terminal number to the switching GMSC/MSC according to the acquired called extension subscriber terminal number, and connecting the call to the switching GMSC/MSC; the system is also used for blocking the speech path connection with the switching GMSC/MSC and sending a ring-back tone playing instruction to the ring-back tone platform after receiving the Address Complete Message (ACM) returned by the switching GMSC/MSC; and after receiving an answer message (ANM) sent by the switching GMSC/MSC, reactivating the speech path connection with the switching GMSC/MSC, sending a ring back tone playing stopping instruction to the ring back tone platform, and detaching the connection with the ring back tone platform.
Wherein, the ring back tone playing instruction is as follows: the initial address message IAM comprises called number parameters and calling number parameters, and the called number parameters are as follows: the ring back tone platform routing prefix + group telephone exchange number, the calling number parameter is: the calling subscriber terminal number. The ring back tone playing stopping instruction comprises the following steps: release (REL) message.
The switching GMSC/MSC is used for connecting the call to a called extension subscriber terminal after receiving the IAM of the group switchboard service platform, and connecting the call to other network networks when the called extension subscriber is the user of other networks; when the called extension user is the home network user, the MSRN of the called extension user is obtained from the HLR of the called extension, then the IAM is sent to the visited MSC of the called extension according to the obtained MSRN, and the call is connected to the visited MSC of the called extension.
The called extension HLR is used to provide the switching GMSC/MSC with the MSRN of the called extension subscriber of the home network.
The called extension visited MSC is used for completing the call connection to the user terminal of the called extension of the local network after receiving the IAM of the switching GMSC/MSC.
The ring back tone platform is used for playing the ring back tone to the calling user terminal through the group switchboard service platform and the calling side call connection unit after receiving a ring back tone playing instruction from the group switchboard service platform, and stopping playing the ring back tone to the calling user terminal after receiving a ring back tone playing stopping instruction of the group switchboard service platform.
The group ring-back tone system structure according to one embodiment of the present invention is described above, where the calling GMSC/MSC, the switchboard HLR, the transit GMSC/MSC, the called extension HLR, and the called extension visited MSC are all call connection units commonly found in the existing network, for example, the calling GMSC/MSC is a calling side call connection unit, and the transit GAMSC/MSC is a called side call connection unit. In addition, the invention can also be applied to other networks, namely, a group switchboard service platform and a ring back tone platform are added in the related network, and the group switchboard service platform is connected with a call connection unit of the corresponding network to realize the purpose of providing the group ring back tone for the group user through the corresponding network. And, the corresponding call connection unit and the group switchboard service platform can be set according to the corresponding network inherent protocol. For example, in the Next Generation Network (NGN), the soft switch can be simultaneously used as the calling and called side call connection units to connect with the corporate switchboard service platform, and then the corporate switchboard service platform can control the ring back tone platform according to the above to achieve the purpose of providing the ring back tone service for the corporate users through the NGN network. In addition, other networks can also adopt a similar mode to realize the group ring back tone service, and the mode is not repeated one by one.
The following describes in detail the implementation method of group ring back tone service of the present invention, the flow of the method is shown in fig. 3, and the method specifically includes the following steps:
step 101: the process of the calling side and the group switchboard service platform connection specifically comprises the following steps: a calling subscriber dials a group switchboard number through terminal equipment such as a fixed telephone, a mobile phone and the like, and sends a calling request to a calling GMSC/MSC; after receiving a call request from a calling user terminal, a calling GMSC/MSC acquires an unconditional forwarding number registered by a group user, namely the address of a group switchboard service platform, from a switchboard HLR, and then sends an IAM (integrated access model) containing called number parameters, original called number parameters and calling number parameters to the group switchboard service platform according to the forwarding number, and the call is connected to the group switchboard service platform.
The called number parameter contained in the IAM in this step is the address of the group switchboard service platform, the original called number parameter is the group switchboard number, and the calling number parameter is the calling user terminal number.
Step 102: and after receiving the IAM sent by the calling GMSC/MSC, the group switchboard service platform returns the ACM and the ANM to the calling GMSC/MSC.
Step 103: the group switchboard service platform acquires the number of the user terminal of the connected called extension set by interacting with the calling user. The interaction mode of the group switchboard service platform and the calling subscriber can adopt the following steps: playback number reception, voice recognition or manual seat inquiry, etc.
Step 104: and the group switchboard service platform sends the IAM containing the user terminal number of the called extension set and the user terminal number of the calling user to the switching GMSC/MSC according to the acquired user terminal number of the called extension set, and the call is connected to the switching GMSC/MSC.
Step 105: after receiving IAM sent by group switchboard service platform, switching GMSC/MSC obtains called extension user terminal number from message, and judges whether the called extension user belongs to other network user, if yes, then the call is connected to other network, and the other network completes connection to called extension; otherwise, acquiring the MSRN from the HLR to which the called extension belongs, and then continuing the call to the visited MSC to which the called extension belongs; and when the switching GMSC/MSC receives the ringing message returned by the user terminal of the called extension, the ACM is returned to the group switchboard service platform.
In addition, in step 104, if the group switchboard service platform supports the MSRN that acquires the called extension from the HLR, the call can be directly connected to the visited MSC to which the called extension user terminal belongs without transferring the GMSC/MSC.
Step 106: after receiving the ACM of the called side, the group exchange service platform returns a Call Progress Message (CPG) to the calling GMSC/MSC.
Step 107: the group telephone exchange service platform judges whether the called user is in idle state according to the received ACM, if yes, the mark of group ring back tone service is opened according to the recorded group telephone exchange, the call speech path of the called extension side is temporarily blocked, the ring back tone played by the called extension side is shielded, and simultaneously the ring back tone platform to which the group telephone exchange number belongs is sent, wherein the mark comprises: the ring back tone platform establishes a call session to the ring back tone platform by the routing prefix, the group telephone exchange number, the called extension user terminal number and the IAM of the calling user terminal number.
The routing prefix of the ring back tone platform in the step is used for enabling the group telephone exchange service platform to route the call to the routing prefix of the ring back tone platform.
Step 108: after the ring back tone platform receives the IAM sent by the group switchboard service platform, the customized ring back tone is selected according to the group switchboard number, and then the ACM is returned to the group switchboard service platform.
The step of selecting the ring back tone is based on the condition that the group user sets the unified ring back tone for all calling users and all group extension users. Certainly, the group user can set different ring back tones for different calling users or group called extension users, thereby realizing the diversification of the group ring back tones. For example: when the group user wants to play different group ring back tones for different calling users, it can adopt: establishing and storing in a ring back tone platform in advance: the corresponding relationship among the group telephone exchange number, the calling subscriber number and the ring back tone, so that in the step 108, when the ring back tone platform receives the IAM, the corresponding ring back tone can be played for the calling subscriber according to the corresponding relationship. When the group user sets different ring back tones for different group extension users, the following steps are adopted: establishing and storing in a ring back tone platform in advance: the corresponding relationship among the group telephone exchange number, the group extension subscriber number and the ring back tone, so that in the above step 108, when the ring back tone platform receives the IAM, the corresponding ring back tone can be played according to the stored corresponding relationship. But also can further establish that: the calling subscriber number, the group switchboard number, the group extension subscriber number and the ring back tone correspond to each other, so that the ring back tone types can be further subdivided and selectively played. In addition, there are other ways to realize the diversity of group ring-back tones, which are not enumerated here.
Step 109: after receiving the ACM, the group switchboard service platform sends CPG to the calling GMSC/MSC.
Step 110: the ring back tone platform plays the ring back tone to the calling subscriber through the group telephone exchange service platform and the calling GMSC/MSC.
Step 111: and when the called extension subscriber answers, the switching GMSC/MSC returns the ANM to the group switchboard service platform.
Step 112: after receiving the ANM, the group switchboard service platform sends CPG to the calling GMSC/MSC, activates the call channel between the calling subscriber and the called extension subscriber, and the ring back tone played by the ring back tone platform is bypassed.
Step 113: the calling subscriber and the called extension subscriber start talking.
Step 114: the group switchboard service platform sends the REL message to the ring back tone platform, and removes the speech path to the ring back tone platform.
Step 115: the ringback tone platform returns a release complete (RLC) message.
Since the subsequent call ending process is completely consistent with the existing group switchboard service, it is not described here again.
Therefore, the purpose of playing the group ring back tone customized by the group when the calling subscriber dials the group switchboard switching extension is finally realized, the extension can be any type of telephone, and the same group can set the same ring back tone and different ring back tones aiming at different calling subscribers and different called extension subscribers.
In short, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (10)
1. A group ring back tone system, the system at least comprising: calling side call connection unit, group switchboard service platform, called side call connection unit; wherein,
the group switchboard service platform is used for sending a second call connection signaling to the called side call connection unit after receiving the first call connection signaling sent by the calling side call connection unit, and connecting the call to the called side call connection unit; it is characterized in that the preparation method is characterized in that,
the system further comprises: the ring back tone platform is used for playing a ring back tone to the calling user terminal through the group switchboard service platform and the calling side call connection unit after receiving a ring back tone playing instruction from the group switchboard service platform;
and the group switchboard service platform is also used for blocking a conversation speech path with the called side call connection unit after receiving a connection response signaling returned by the called side call connection unit, sending a ring back tone playing instruction to the ring back tone platform and establishing connection with the ring back tone platform.
2. The system of claim 1, wherein the group switchboard service platform is further configured to reactivate the session connection with the called-side call connection unit after receiving the call response signaling returned by the called-side call connection unit, send a ring-back tone playing stop instruction to the ring-back tone platform, and detach the connection with the ring-back tone platform;
the ring back tone platform is also used for stopping playing the ring back tone to the calling user terminal after receiving the instruction of stopping playing the ring back tone from the group telephone exchange service platform.
3. The system of claim 2, wherein the calling-side call connection unit comprises: calling gateway mobile switching center/mobile switching center GMSC/MSC; the called side call connection unit comprises: a transfer gateway mobile switching center/mobile switching center GMSC/MSC; and the first call connection signaling is: initial address message IAM including group telephone exchange service platform address, group telephone exchange number and calling user terminal number; the second call connection signaling is: IAM containing called extension user terminal number and calling user terminal number; the continuous response signaling is as follows: address full message ACM; the ring back tone playing instruction comprises the following steps: IAM containing ring back tone platform route prefix and group telephone exchange number; the call response signaling is a response message ANM; the ring back tone playing stopping instruction comprises the following steps: the message REL is released.
4. The system according to any one of claims 1 to 3, wherein the group switchboard service platform is further configured to interact with the calling user to acquire a called extension subscriber terminal number after receiving a first call connection signaling sent by the calling side call connection unit, and then send a second call connection signaling to the called side call connection unit according to the acquired called extension subscriber terminal number.
5. The system according to any one of claims 1 to 3, wherein said group switchboard service platform is configured to, after receiving a connection response signaling returned by the called-side call connection unit, block a call session with the called-side call connection unit when determining that the called extension user terminal is currently in an idle state according to the called extension user terminal state information carried in the connection response signaling.
6. A method for implementing group ring back tone service based on the system of claim 1, the method comprising:
a. after receiving a call request sent by a calling user terminal, a calling side call connection unit sends a first call connection signaling to a group switchboard service platform;
b. after receiving a first call connection signaling sent by a calling side call connection unit, a group switchboard service platform sends a second call connection signaling to a called side call connection unit;
c. after receiving the second call connection signaling of the group switchboard service platform, the called side call connection unit connects the call to the called extension subscriber terminal and returns a connection response signaling to the group switchboard service platform;
d. after receiving the continuous response signaling returned by the called side call connection unit, the group switchboard service platform blocks the call channel with the called side call connection unit, sends a ring back tone playing instruction to the ring back tone platform and establishes connection with the ring back tone platform;
e. after the ring back tone platform receives the ring back tone playing instruction from the group switchboard service platform, the ring back tone is played to the calling user terminal through the group switchboard service platform and the calling side call connection unit.
7. The method of claim 6, wherein step b further comprises: after receiving the first call connection signaling sent by the calling side call connection unit, the group switchboard service platform acquires the called extension user terminal number through interaction with the calling user, and then executes the step of sending the second call connection signaling in the step b according to the acquired called extension user terminal number.
8. The method of claim 6, wherein step d further comprises: and d, after the group switchboard service platform receives a connection response signaling returned by the called side call connection unit, judging whether the called extension user terminal is in an idle state currently according to the called extension user terminal state information carried in the connection response signaling, and if so, executing the step of blocking the call channel in the step d.
9. The method of claim 6, wherein step d further comprises: and d, when the group switchboard service platform receives a connection response signaling returned by the called side call connection unit, judging whether a group ring back tone service is opened aiming at the corresponding group switchboard number, if so, executing the step of blocking the call speech path in the step d.
10. The method according to any one of claims 6 to 9, characterized in that the step e is followed by the further steps of:
f. when the called extension user answers the phone, the called call connection unit returns the call answer signaling to the group switchboard service platform;
g. after receiving the call response signaling returned by the called side call connection unit, the group switchboard service platform reactivates the call path connection with the called side call connection unit, sends a ring back tone playing stopping instruction to the ring back tone platform, and removes the connection with the ring back tone platform.
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| CN1604601A (en) * | 2003-09-30 | 2005-04-06 | 北京阔步科技有限公司 | A communication system capable of producing personalized ring back tone and implementing method thereof |
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| CN1859476A (en) | 2006-11-08 |
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