CN101282501B - Method and system for initiating intelligent call by network - Google Patents

Method and system for initiating intelligent call by network Download PDF

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Publication number
CN101282501B
CN101282501B CN2007100875978A CN200710087597A CN101282501B CN 101282501 B CN101282501 B CN 101282501B CN 2007100875978 A CN2007100875978 A CN 2007100875978A CN 200710087597 A CN200710087597 A CN 200710087597A CN 101282501 B CN101282501 B CN 101282501B
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call
message
intelligent call
service
network
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CN101282501A (en
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蒋占岭
郭瑾
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

The invention provides a method and system for initiating network intelligent calls, which belongs to the field of network communication. In order to solve problem of the prior art that network can not initiate various bearing-type intelligent calls, the method and the system are provided. The method includes the following steps: bearing-type information and/or service-type information is added by SCP in a first transmitted ICA message, and then sends the ICA message to MSC/SSP; MSC/SSP initiates an intelligent call according to bearing-type information and/or service-type information in the message after receiving. The system includes: SCP and MSC/SSP. The invention adds bearing-type information of calls in ICA message, which can initiate calls with different bearing types and initiate calls with different service types by adding service type information of calls in ICA message, thereby provides operators with various multi-functional network call services.

Description

The method and system of initiating intelligent call by network
Technical field
The present invention relates to field of network communication, particularly a kind of method and system of initiating intelligent call by network.
Background technology
Under the existing network architecture, increasing business realizes that by intelligent platform the introducing of intelligent platform has reduced the complexity of network, makes the time of disposing a kind of new business reduce greatly.When increasing a kind of new business, only need on a node of intelligent platform, to carry out, do not need MSC (Mobile Switching Center, the mobile switching centre) equipment of the whole network all to upgrade, thereby reduced because the introducing of new business influences the risk of the normal operation of existing business.Network function framework behind the introducing intelligent platform as shown in Figure 1.By introducing SSF (Service Switching Function, Service Switching Function, generally be integrated among the MSC), SRF (Specialized Resource Function, special resource function) and SCF (Service Control Function, service control function) realize IN service.The what's new inter-entity is by CAP (Customized Applications forMobile Network Enhanced Logic Application Part, the mobile network strengthens customization applied logic applying portion) agreement or INAP (Intelligent Network Application Protocol, intelligent network application protocol) carry out alternately to finish business.
The networking schematic diagram that network makes a call by intelligent platform in the prior art as shown in Figure 2.MSC is connected with a mobile subscriber MSa, and GMSC (Gateway MSC, mobile gateway switching center) is connected with a user Userb (this user can be mobile subscriber or fixed-line subscriber or enterprise customer).Network is initiated user MSa to the calling procedure of user Userb as shown in Figure 3, SCP (Service Control Point at first, service control point) sends ICA (Initiate Call Attempt, trial makes a call) message gives MSC/SSP (Service Switching Point, Service Switching Point), MSC/SSP is initiated to the calling of user MSa according to this message, behind the connecting subscribers participating MSa, and notice SCP connecting subscribers participating MSa success; SCP sends ICA message to MSC/SSP then, and MSC/SSP is initiated to the calling of user Userb according to this message, behind the connecting subscribers participating Userb, and notice SCP connecting subscribers participating Userb success; SCP connects user MSa and user Userb, after the successful connection, has just finished the user MSa that initiated by the network calling to user Userb.In order to distinguish the type of service of calling, as current calling is prepayment service, or Customer Service Center's business or MPTY (Multi Party, Multi-Way Calling) business or the like, increase the method for prefix in the destination Mobile Station International ISDN Number of employing in the message that SCP sends to MSC/SSP (promptly need connect Subscriber Number), for example, the destination number that SCP needs MSC/SSP to connect is 5678955506, if current business is Customer Service Center's business, A01 represents with prefix, and then the destination number that issues of SCP is A015678955506; If current business is the MPTY business, A02 represents with prefix, and then the destination number that issues of SCP is A025678955506.
Above-mentioned prior art has following shortcoming:
1, owing to no matter is INAP or CAMEL is (Customized Applications for Mobile network EnhancedLogic, the mobile network strengthens the customization applied logic) agreement, the cell that does not all have call business type and bearer types in the ICA message, therefore the calling of existing network initiation can only be an audio call, can not carry out the calling of other bearer types such as data service calls and video call.
Though 2, adopt the method that increases prefix can distinguish the type of service of calling, but when chargeing, the number that MSC/SSP needs to have prefix is filled up to CDR (Call Detail Record, call detail recording is a ticket) in the called number territory or the calling number territory in, perhaps be filled up in the type of service territory newly-increased among the CDR, cumbersome; And the charging center also needs pre-configuredly to have increased cost of developing with identification prefix and newly-increased territory, otherwise can't finish the work of choosing single (a kind of ticket of service-user is picked out) from MSC/SSP sends to all tickets of charging center.
3, in CDR, can't distinguish the intelligent call that normal call and network are initiated, can not distinguish charge.
Summary of the invention
Can not initiate the intelligent call of multiple bearer types and initiate different service types and call out cumbersome problem in order to solve network in the prior art, the embodiment of the invention provides a kind of method and system of initiating intelligent call by network.
Described method comprises:
Bearer types information and/or traffic type information that service control point attempts increasing in the message intelligent call making a call of sending for the first time send described making a call then and attempt message to mobile switching centre/Service Switching Point;
Described mobile switching centre/Service Switching Point is initiated described intelligent call according to the described bearer types information and/or the traffic type information of attempting in the message that make a call after receiving the described trial message that makes a call;
On described mobile switching centre/Service Switching Point, increase the function of bearer negotiation in advance, when described mobile switching centre/Service Switching Point is connected an end of described intelligent call, a described end and mobile switching centre/Service Switching Point carry out bearer negotiation, when described mobile switching centre/Service Switching Point is connected the other end of described intelligent call, the described other end and mobile switching centre/Service Switching Point carry out bearer negotiation, and last described mobile switching centre/operation exchange result who consults that names a person for a particular job sends to a described end and the other end.
Described system comprises: service control point and mobile switching centre/Service Switching Point,
Described service control point comprises:
Expansion module is used for bearer types information and/or traffic type information at the trial message increase intelligent call that makes a call that sends for the first time;
Sending module is used to send making a call after the described expansion module expansion and attempts message to described mobile switching centre/Service Switching Point;
Described mobile switching centre/Service Switching Point comprises:
Receiver module is used to receive the trial message that makes a call that described sending module is sent;
Calling module is used for initiating described intelligent call according to the bearer types information and/or the traffic type information of attempting message that make a call that described receiver module receives;
Described mobile switching centre/Service Switching Point also comprises:
Negotiation module, be used for increasing in advance the function of bearer negotiation, when described calling module is connected an end of described intelligent call, carry out bearer negotiation with a described end, when described calling module is connected the other end of described intelligent call, carry out bearer negotiation with the described other end, and final negotiation result is sent to a described end and the other end.
The beneficial effect of the embodiment of the invention mainly shows:
By in ICA message, increasing the bearer types information of calling out, can realize the calling of network initiation different bearer types, by in ICA message, increasing the traffic type information of calling out, can realize that network initiates the calling of different service types, thereby provide diversity, multi-functional calling network service for operator.
Description of drawings
Fig. 1 introduces network function configuration diagram behind the intelligent platform in the prior art;
Fig. 2 is the networking schematic diagram of initiating intelligent call by network in the prior art;
Fig. 3 is that the network among Fig. 2 is initiated the call flow schematic diagram between user MSa and the user Userb;
Fig. 4 is the method flow diagram of the embodiment of the invention one initiating intelligent call by network;
Fig. 5 is the method flow diagram of the embodiment of the invention two initiating intelligent call by network;
Fig. 6 is the method flow diagram of the embodiment of the invention three initiating intelligent call by network;
Fig. 7 is the system construction drawing of the embodiment of the invention four initiating intelligent call by network.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, but the present invention is not limited to the following examples.
Embodiment one
In existing C AMEL intelligent protocol and INAP intelligent protocol, exist between SCP and the MSC/SSP and carry BC (Bearer Capability, bearing capacity) operation of cell, Initial DP (Initial Detect Point for example, test point starts) message, in ICA message, carry newly-increased BC cell by SCP in the present embodiment and give MSC/SSP, an end of supposing intelligent call is user A, the other end is user B, referring to Fig. 4, the embodiment of the invention provides a kind of method of initiating intelligent call by network, specifically may further comprise the steps:
Step 101:SCP increases the BC cell in the ICA message that issues for the first time, and in the BC cell, write the bearer types information of the intelligent call of the current initiation of network, the bearer types of intelligent call has multiple, as audio call, data service calls or video call or the like; SCP specifies the called subscriber in the DRA of this ICA message (Destination RoutingAddress, purpose routing address) cell be user A.
Step 102:SCP sends to MSC/SSP with above-mentioned ICA message.
SCP can not carry the BC cell in the follow-up ICA message that issues, be because the BC cell has determined the bearer types of whole intelligent call, if all carry a BC cell in each ICA message that SCP issues, then MSC/SSP can't determine to be as the criterion with the bearer types in which BC cell, and can remove the calling of having set up the front and rebulid another calling, can cause serious consequences such as intelligent network fail like this, thereby can cause that also subscriber phone causes bad influence intermittently.
After step 103:MSC/SSP receives the ICA message that SCP sends, resolve ICA message, from ICA message, extract the BC cell, and from the BC cell, obtain the bearer types information of calling.
Step 104:MSC/SSP sets up carrying according to the bearer types information that obtains, is initiated to the calling of user A, behind the connecting subscribers participating A, promptly obtain affirmation information that user A returns after, notice SCP connecting subscribers participating A success.
Step 105:SCP sends ICA message once more to MSC/SSP after obtaining the message that user A successfully connected, SCP specifies the called subscriber in the DRA of this ICA message cell be user B, and do not comprise the BC cell in this ICA message.
After step 106:MSC/SSP receives the ICA message that SCP sends, be initiated to the calling of user B according to this message, behind the connecting subscribers participating B, notice SCP connecting subscribers participating B success.
Step 107:SCP connects user A and user B after obtaining the message that user B successfully connected, after the successful connection, finished the user A that initiated by the network calling to user B.
Can initiate the intelligent call of different service types in order to make network, for example, prepayment service, Customer Service Center's business, MPTY business or the like, SCP can also increase SK (Service Key in the ICA message that sends for the first time, service key) in existing C AMEL intelligent protocol and INAP intelligent protocol, there is the operation of carrying the SK cell in cell between SCP and the MSC/SSP, as Initial DP message, SCP writes the type of service of current intelligent call in the SK cell; MSC/SSP extracts traffic type information from the SK cell of ICA message after receiving ICA message, and as the type of service of current intelligent call, carry out intelligent call; MSC/SSP can also write down the SK cell in CDR, thereby can be chargeed accordingly according to different types of service in the charging center.
SCP both bearer types of designated call separately in the ICA message that sends for the first time, the also type of service of designated call separately, the bearer types and the type of service of all right while designated call.
In order to identify current calling is the intelligent call that network is initiated, and further, can increase following step:
MSC/SSP increases field in ticket CDR when receiving that SCP sends for the first time ICA message, identifying current calling is the calling that network is initiated, and correspondingly, the charging center can be with this field as a foundation of chargeing.
The bearing capacity of considering user A and user B may be different, further, and the step below in said process, can also increasing:
On MSC/SSP, increase the function of bearer negotiation in advance, behind MSC/SSP connecting subscribers participating A, the state after user A is in and replys, user A can initiate bearer negotiation to MSC/SSP, tells MSC/SSP with the bearing capacity (is 64kbit/s as transmittability) of oneself; Behind MSC/SSP connecting subscribers participating B, the state after user B is in and replys, user B can initiate bearer negotiation to MSC/SSP, tells MSC/SSP with the bearing capacity (is 32kbit/s as transmittability) of oneself; The result that MSC/SSP determine to consult according to certain principle as with the bearing capacity of minimum bearing capacity as current intelligent call, and sends to user A and user B respectively with negotiation result (bearing capacity is 32kbit/s).
Can also in network, increase equipment in addition with bearer negotiation function, for example, the bearer negotiation equipment VIG of video call (Vedio Interworking Gateway, video interactive gateway), to realize the bearer negotiation of the intelligent call that network is initiated, concrete steps are as follows:
In network, increase equipment in advance with bearer negotiation function, behind MSC/SSP connecting subscribers participating A, the state after user A is in and replys, user A can initiate bearer negotiation to the said equipment, tells this equipment with the bearing capacity of oneself; Behind MSC/SSP connecting subscribers participating B, the state after user B is in and replys, user B can initiate bearer negotiation to the said equipment, tells this equipment with the bearing capacity of oneself; The result that this equipment determine to be consulted according to certain principle as with the bearing capacity of minimum bearing capacity as current intelligent call, and sends to user A and user B respectively with negotiation result.
Embodiment two
Different with embodiment one is, SCP increases prefix in the present embodiment in the DRA of ICA message cell, and the bearer types of sign intelligent call is referring to Fig. 5, the embodiment of the invention also provides the method for another initiating intelligent call by network, specifically may further comprise the steps:
Step 201:SCP increases prefix in the DRA cell of the ICA message that issues for the first time, identify the bearer types of current intelligent call, for example, with prefix A01 sign audio call, use prefix A02 identification data service call, identify video call or the like with prefix A03.
Step 202:SCP sends to MSC/SSP with above-mentioned ICA message.
SCP can not carry prefix information in the follow-up ICA message that issues, be because prefix information has determined the bearer types of whole intelligent call, if all carry prefix in the DRA cell of each ICA message that SCP issues, then MSC/SSP can't determine to be as the criterion with the bearer types of which prefix sign, will cause intelligent network fail.
After step 203:MSC/SSP receives the ICA message that SCP sends, resolve ICA message, from the DRA cell of ICA message, extract bearer types information.
Step 204:MSC/SSP is initiated to the calling of user A according to the bearer types information that obtains, behind the connecting subscribers participating A, promptly obtain affirmation information that user A returns after, notice SCP connecting subscribers participating A success.
Step 205:SCP sends ICA message once more to MSC/SSP after obtaining the message that user A successfully connected, SCP specifies the called subscriber in the DRA of this ICA message cell be user B, and do not comprise the BC cell in this ICA message.
After step 206:MSC/SSP receives the ICA message that SCP sends, be initiated to the calling of user B according to this message, behind the connecting subscribers participating B, notice SCP connecting subscribers participating B success.
Step 207:SCP connects user A and user B after obtaining the message that user B successfully connected, after the successful connection, finished the user A that initiated by the network calling to user B.
Can initiate the intelligent call of different service types in order to make network, for example, prepayment service, Customer Service Center's business, MPTY business or the like, SCP can also increase the SK cell in the ICA message that sends for the first time, and SCP writes the type of service of current intelligent call in the SK cell; MSC/SSP extracts traffic type information from the SK cell of ICA message after receiving ICA message, and as the type of service of current intelligent call, carry out intelligent call; MSC/SSP can also write down the SK cell in CDR, thereby can be chargeed accordingly according to different types of service in the charging center.
SCP bearer types of designated call separately in the ICA message that sends for the first time, the also type of service of designated call separately, the bearer types and the type of service of all right while designated call.
In order to identify current calling is the intelligent call that network is initiated, and further, can increase following step:
MSC/SSP increases field in ticket CDR when receiving that SCP sends for the first time ICA message, identifying current calling is the calling that network is initiated, and correspondingly, the charging center can be with this field as a foundation of chargeing.
The bearing capacity of considering user A and user B may be different, further, can also utilize is in advance increasing the mode of bearer negotiation function or increasing the mode of the equipment with bearer negotiation function in network on the MSC/SSP, in said process, increase the step of bearer negotiation, identical with embodiment one, do not repeat them here.
Embodiment three
SCP passes through to increase the SK cell in ICA message in the present embodiment, and writes the type of service of current intelligent call in the SK cell, realizes the calling of network initiation different service types.Referring to Fig. 6, the embodiment of the invention also provides the method for another initiating intelligent call by network, specifically may further comprise the steps:
Step 301:SCP increases the SK cell in the ICA message that issues for the first time, and writes the traffic type information of the intelligent call of the current initiation of network in the SK cell, for example, and prepayment service, Customer Service Center's business, MPTY business or the like;
Step 302:SCP sends to MSC/SSP with above-mentioned ICA message;
SCP can not carry the SK cell in the follow-up ICA message that issues, be because the SK cell has determined the type of service of whole intelligent call, if all carry a SK cell in each ICA message that SCP issues, then MSC/SSP can't determine to be as the criterion with the type of service in which SK cell, the confusion that can cause intelligent call to charge like this.
After step 303:MSC/SSP receives the ICA message that SCP sends, resolve ICA message, from ICA message, extract the SK cell, and from the SK cell, obtain the traffic type information of calling.
Step 304:MSC/SSP is initiated to the calling of user A with the type of service that the obtains type of service as current intelligent call, behind the connecting subscribers participating A, promptly obtain affirmation information that user A returns after, notice SCP connecting subscribers participating A success.
Step 305:SCP sends ICA message once more to MSC/SSP after obtaining the message that user A successfully connected, SCP specifies the called subscriber in the DRA of this ICA message cell be user B, and do not comprise the SK cell in this ICA message.
After step 306:MSC/SSP receives the ICA message that SCP sends, be initiated to the calling of user B according to this message, behind the connecting subscribers participating B, notice SCP connecting subscribers participating B success.
Step 307:SCP connects user A and user B after obtaining the message that user B successfully connected, after the successful connection, finished the user A that initiated by the network calling to user B.
MSC/SSP can also write down the SK cell in CDR, thereby can be chargeed accordingly according to different types of service in the charging center.
In order to realize the calling of network initiation different bearer types, as audio call, data service calls or video call or the like; SCP can also identify the bearer types of intelligent call with mode that increases the BC cell or the mode that increases prefix in the DRA cell in the ICA message that sends for the first time, and detailed process is consistent with step among the embodiment two with embodiment one, does not repeat them here.
In order to identify current calling is the intelligent call that network is initiated, and further, can increase following step:
MSC/SSP increases field in ticket CDR when receiving that SCP sends for the first time ICA message, identifying current calling is the calling that network is initiated, and correspondingly, the charging center can be with this field as a foundation of chargeing.
The bearing capacity of considering user A and user B may be different, further, can also utilize is in advance increasing the mode of bearer negotiation function or increasing the mode of the equipment with bearer negotiation function in network on the MSC/SSP, in said process, increase the step of bearer negotiation, identical with embodiment one, do not repeat them here.
Embodiment four
Referring to Fig. 7, the embodiment of the invention also provides a kind of system of initiating intelligent call by network, and system comprises SCP and MSC/SSP,
SCP comprises:
1) expansion module, the ICA message that is used for sending for the first time at SCP increases the bearer types information and/or the traffic type information of intelligent call;
2) sending module is used to send ICA message after the expansion module expansion to MSC/SSP;
MSC/SSP comprises:
1) receiver module is used to receive the ICA message that sending module is sent;
2) calling module is used for the bearer types information and/or the traffic type information initiating intelligent call of the ICA message that receives according to receiver module.
In order to realize initiating the intelligent call of different bearer types, above-mentioned expansion module can comprise:
BC cell expanding element, the ICA message that is used for sending for the first time at SCP increases the BC cell, writes the bearer types information of intelligent call in the BC cell.
Above-mentioned expansion module can also comprise:
The Prefix Expansion unit, the DRA cell that is used for the ICA message that sends for the first time at SCP increases prefix, the bearer types of sign intelligent call.
In order to realize initiating the intelligent call of different service types, above-mentioned expansion module can comprise:
SK cell expanding element, the ICA message that is used for sending for the first time at SCP increases the SK cell, writes the traffic type information of intelligent call in the SK cell.
In order to identify current calling is the intelligent call that network is initiated, and above-mentioned MSC/SSP also comprises:
Identification module is used for increasing field in ticket after receiver module is received ICA message, and the sign intelligent call is the calling that network is initiated.
Consider that user's bearing capacity of calling out two ends may be different, further, above-mentioned MSC/SSP also comprises:
Negotiation module is used for increasing in advance the function of bearer negotiation, when calling module is connected an end of intelligent call, carry out bearer negotiation with an end, when calling module is connected the other end of intelligent call, carry out bearer negotiation with the other end, and final negotiation result is sent to an end and the other end.
The system of above-mentioned initiating intelligent call by network can also comprise the equipment with bearer negotiation function, this equipment is used for when calling module is connected an end of intelligent call, carry out bearer negotiation with an end, when calling module is connected the other end of intelligent call, carry out bearer negotiation with the other end, and final negotiation result is sent to an end and the other end.
The embodiment of the invention not only can realize the calling of network initiation different bearer types, and can realize the calling of network initiation different service types, and correspondingly, different chargings can be carried out according to different types of service in the charging center.Increase field by MSC/SSP in ticket, can identify current intelligent call is the calling that network is initiated, and makes Business Processing simpler, and makes things convenient for the foundation that the charging center is discerned and conduct is chargeed, and making the processing of chargeing more clear, simple; By on MSC/SSP, increasing the mode of bearer negotiation function in advance, perhaps in network, increase equipment with bearer negotiation function, can realize the bearer negotiation of the intelligent call that network is initiated, make things convenient for two parties not hold consultation simultaneously, use more flexible in bearing capacity.
Above-described embodiment is a more preferably embodiment of the present invention, and common variation that those skilled in the art carries out in the technical solution of the present invention scope and replacement all should be included in protection scope of the present invention.

Claims (12)

1. the method for an initiating intelligent call by network is characterized in that, described method comprises:
Bearer types information and/or traffic type information that service control point attempts increasing in the message intelligent call making a call of sending for the first time send described making a call then and attempt message to mobile switching centre/Service Switching Point;
Described mobile switching centre/Service Switching Point is initiated described intelligent call according to the described bearer types information and/or the traffic type information of attempting in the message that make a call after receiving the described trial message that makes a call;
On described mobile switching centre/Service Switching Point, increase the function of bearer negotiation in advance, when described mobile switching centre/Service Switching Point is connected an end of described intelligent call, a described end and mobile switching centre/Service Switching Point carry out bearer negotiation, when described mobile switching centre/Service Switching Point is connected the other end of described intelligent call, the described other end and mobile switching centre/Service Switching Point carry out bearer negotiation, and last described mobile switching centre/operation exchange result who consults that names a person for a particular job sends to a described end and the other end.
2. the method for initiating intelligent call by network according to claim 1 is characterized in that, described service control point is specially in the step of attempting the bearer types information of increase intelligent call in the message that makes a call that sends for the first time:
Described service control point is attempted increasing the bearing capacity cell in the message in making a call of sending for the first time, writes the bearer types information of described intelligent call in described bearing capacity cell.
3. the method for initiating intelligent call by network according to claim 1 is characterized in that, described service control point is specially in the step of attempting the bearer types information of increase intelligent call in the message that makes a call that sends for the first time:
Described service control point increases prefix in the purpose routing address cell of attempting message that makes a call that sends for the first time, identify the bearer types of described intelligent call.
4. the method for initiating intelligent call by network according to claim 1 is characterized in that, described service control point is specially in the step of attempting the traffic type information of increase intelligent call in the message that makes a call that sends for the first time:
Described service control point is attempted increasing the service key cell in the message in making a call of sending for the first time, writes the traffic type information of described intelligent call in described service key cell.
5. the method for initiating intelligent call by network according to claim 1 is characterized in that, described method also comprises:
Described mobile switching centre/Service Switching Point increases field after receiving the described trial message that makes a call in ticket, identifying described intelligent call is the calling that network is initiated.
6. according to the method for the described initiating intelligent call by network of arbitrary claim in the claim 1 to 5, it is characterized in that described method also comprises:
In network, increase equipment in advance with bearer negotiation function, when described mobile switching centre/Service Switching Point is connected an end of described intelligent call, a described end and equipment carry out bearer negotiation, when described mobile switching centre/Service Switching Point is connected the other end of described intelligent call, the described other end and equipment carry out bearer negotiation, and the result that last described equipment will be consulted sends to a described end and the other end.
7. the system of an initiating intelligent call by network is characterized in that, described system comprises service control point and mobile switching centre/Service Switching Point,
Described service control point comprises:
Expansion module is used for attempting bearer types information and/or the traffic type information that message increases intelligent call making a call of sending for the first time of described service control point;
Sending module is used to send making a call after the described expansion module expansion and attempts message to described mobile switching centre/Service Switching Point;
Described mobile switching centre/Service Switching Point comprises:
Receiver module is used to receive the trial message that makes a call that described sending module is sent;
Calling module is used for initiating described intelligent call according to the bearer types information and/or the traffic type information of attempting message that make a call that described receiver module receives;
Described mobile switching centre/Service Switching Point also comprises:
Negotiation module, be used for increasing in advance the function of bearer negotiation, when described calling module is connected an end of described intelligent call, carry out bearer negotiation with a described end, when described calling module is connected the other end of described intelligent call, carry out bearer negotiation with the described other end, and final negotiation result is sent to a described end and the other end.
8. the system of initiating intelligent call by network according to claim 7 is characterized in that, described expansion module comprises:
BC cell expanding element is used for increasing the bearing capacity cell in the trial message that makes a call that described service control point sends for the first time, writes the bearer types information of described intelligent call in described bearing capacity cell.
9. the system of initiating intelligent call by network according to claim 7 is characterized in that, described expansion module comprises:
The Prefix Expansion unit is used for increasing prefix at the purpose routing address cell of attempting message that makes a call that described service control point sends for the first time, identifies the bearer types of described intelligent call.
10. the system of initiating intelligent call by network according to claim 7 is characterized in that, described expansion module comprises:
SK cell expanding element is used for increasing the service key cell in the trial message that makes a call that described service control point sends for the first time, writes the traffic type information of described intelligent call in described service key cell.
11. the system of initiating intelligent call by network according to claim 7 is characterized in that, described mobile switching centre/Service Switching Point also comprises:
Identification module is used for increasing field in ticket after described receiver module is received the trial message that makes a call, and identifying described intelligent call is the calling that network is initiated.
12. system according to the described initiating intelligent call by network of arbitrary claim in the claim 7 to 11, it is characterized in that, described system also comprises the equipment with bearer negotiation function, described equipment is used for when described calling module is connected an end of described intelligent call, carry out bearer negotiation with a described end, when described calling module is connected the other end of described intelligent call, carry out bearer negotiation with the described other end, and final negotiation result is sent to a described end and the other end.
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