CN100550948C - A kind of control method of Call Forwarding No Reply and system - Google Patents
A kind of control method of Call Forwarding No Reply and system Download PDFInfo
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- CN100550948C CN100550948C CNB2005101023976A CN200510102397A CN100550948C CN 100550948 C CN100550948 C CN 100550948C CN B2005101023976 A CNB2005101023976 A CN B2005101023976A CN 200510102397 A CN200510102397 A CN 200510102397A CN 100550948 C CN100550948 C CN 100550948C
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Abstract
A kind of control method of Call Forwarding No Reply and control device thereof belong to wireless communication field.In order to solve in the prior art the overtime shortcoming that causes to trigger Call Forwarding No Reply that takes the lead in owing to originating MS C, the present invention proposes a kind of control method of Call Forwarding No Reply, this method is carried out the parameter transmission with the foundation calling by request between the mobile switching centre that starts, Home Location Register, current service mobile switching centre and the boundary mobile exchanging center and response message, and the no response time of the call answering stand-by period of the mobile switching centre that starts greater than boundary mobile exchanging center is set in described parameter transmittance process.The present invention also provides a kind of control device of Call Forwarding No Reply, comprises the calling initiation module, and parameter is transmitted module and Call Forwarding No Reply trigger module.The present invention is used for the control of paging Call Forwarding No Reply early between system.
Description
Technical field
The present invention relates to wireless communication field, particularly a kind of between system the early control method and the system of Call Forwarding No Reply in the paging.
Background technology
The Call Forwarding No Reply business is a kind of customer service commonly used in the communication network.Its main function be when the called subscriber when being in unmanned response status, system can will forward another telephone number or Voice Mailbox to according to prior being provided with of user before the calling, thereby the user is increased accept the chance of calling.
When calling party was called out the callee, calling party and callee's call case is divided into local call and interoffice is called out two kinds.During local call, calling party, callee and carry out normal call flow under same mobile switching centre (MSC-Mobile SwitchCenter) covers.When station to station call, calling party, callee are in the different MSC areas of coverage.The MSC at calling party area of coverage place is originating MS C, and the MSC at callee's area of coverage place is current service MSC.
When roaming takes place, if the callee has registered the user profile of oneself in current service MSC, this moment, calling party was called out the callee, when taking place Call Forwarding No Reply to user C, Home Location Register (HLR-Home LocationRegister) meeting brings current service MSC with callee's the no response time in route request information, the nothing of current service MSC is answered the time control, be about to the triggered time of no response time as the no response timer of current service MSC.Because the call answering stand-by period of originating MS C is set to larger than callee's the no response time in system, so guaranteed the callee during ring, perhaps Call Forwarding is behind user C, and C user originating MS C during ring can not take the lead in overtime.
When the wireless user is movable on the border, might the user in conversation or because of other reasons also is not able to do in time in new area of coverage MSC registration, this situation may cause current service MSC paging to arrive this user.For to address this problem the flow process of having formulated by current service MSC paging between the MSC transmitting system of border, be divided into early paging mode and late paging mode in the protocol specification of code division multiple access (CDMA-Code Division Multiple Access).Early the paging mode be meant system set up before the speech channel from originating MS C to current service MSC earlier to subscriber paging and with this Subscriber Locked on voice channel, connect the speech channel that originating MS C comes subsequently again.And late paging mode is meant that system is switched to current service MSC with speech channel from originating MS C earlier, carries out paging by current service MSC to the user subsequently again.What relate in the present invention is the relevant inter-system paging flow process of paging early.Now, describe the inter-system paging flow process of the mode of paging early in detail in conjunction with Fig. 1.In Fig. 1, ORI_MSC is originating MS C, and HLR is the current location register, and SERVING_MSC is current service MSC, and BORDER_MSC is border MSC.
1) the call direction callee under originating MS C covers makes a call, and originating MS C sends out location request message (LOCREQ) to HLR;
2) HLR inquiry callee current location information is sent out route request information (ROUTREQ) to current service MSC then, comprises callee's no response time cell (NoAnswerTime) in the message;
3) current service MSC receives that route request information backward dege circle MSC sends out inter-system paging message (ISPAGE-Intersystem Page);
4) border MSC paging called partner in the native system area of coverage.Receive behind callee's page response page-response message (ispage) between current service MSC retrieval system, comprise " temporary position call number " (TLDN-Temporary Location Directory Number) in the message;
5) current service MSC sends out route requests response message (routreq) to HLR after receiving the inter-system paging response message, comprises " temporary position call number " in the message;
6) HLR sends out position request response message (locreq) to originating MS C, comprises the temporary position call number in the message;
7) originating MS C starts the call answering waiting timer, and sets up calling (CALL SETUP) with the temporary position call number to border MSC;
8) behind the call setup, border MSC sends out bell signal to the callee, and no response timer in the start-up system, waits for callee's call answering;
9) if above-mentioned no response timer expiry, the callee is no response still, then border MSC can trigger no-answer call connection.
According to present agreement, during paging, border MSC can adopt the triggered time of the no response duration of system default configuration as the no response timer between generation systems.This will cause in some cases originating MS C to take the lead in overtime and border MSC can't trigger Call Forwarding No Reply.Illustrate below:
Calling party is called out the callee under originating MS C, the record callee is under current service MSC among the HLR, and in fact the callee has roamed under the MSC of border, but does not initiate location registers.Current service MSC starts that early paging function is to callee's distributing paging during no-response paging under current service MSC, and current service MSC can initiate inter-system paging to border MSC.If wait for that in originating MS C the call answering time is Twanswer1, the default no response time is Tnoanswer2 in the MSC of border.Because the triggered time of the no response timer of border MSC is the default time of system, uncontrollable to originating MS C and HLR Tnoanswer2, when Twanswer1＜Tnoanswer2, originating MS C disconnects speech channel owing to overtime, causes border MSC can't trigger Call Forwarding No Reply at all.
Summary of the invention
In order to solve in the prior art the overtime shortcoming that causes to trigger Call Forwarding No Reply that takes the lead in owing to originating MS C, the present invention proposes a kind of control method and system of Call Forwarding No Reply, with early the call answering waiting timer of originating MS C and the no response length of timer matching problem of border MSC in the paging between resolution system, this scheme is as follows:
A kind of control method of Call Forwarding No Reply may further comprise the steps:
Steps A: calling party makes a call to the callee by the mobile switching centre that starts;
Step B: carry out the parameter transmission by request and response message between the mobile switching centre that starts, Home Location Register, current service mobile switching centre and the boundary mobile exchanging center and call out, and the no response time of the call answering stand-by period of the mobile switching centre that starts greater than boundary mobile exchanging center is set in described parameter transmittance process to set up;
Step C: after setting up calling between calling party and the callee, if the still no response of no response timer expiry callee of boundary mobile exchanging center, boundary mobile exchanging center triggers Call Forwarding No Reply.
Described step B further comprises:
Current service mobile switching centre receives that route messages backward dege circle mobile switching centre sends out inter-system paging message, has comprised the no response time cell of the callee in the route request information in the described inter-system paging message;
Boundary mobile exchanging center is with the triggered time as its Call Forwarding No Reply trigger no response time of described callee.
Described step B further comprises:
Location request message is sent out to Home Location Register by the mobile switching centre that starts, and comprises the call answering stand-by period cell of the mobile switching centre that starts in the described location request message;
Home Location Register is sent out route request information to current service mobile switching centre, comprises the call answering stand-by period cell of the mobile switching centre that starts in the described route request information;
Current service mobile switching centre receives that route messages backward dege circle mobile switching centre sends out inter-system paging message, has comprised the call answering stand-by period cell of the mobile switching centre that starts in the described inter-system paging message;
Boundary mobile exchanging center with one less than the duration of the call answering stand-by period of the described mobile switching centre that starts triggered time as its no response timer.
Described step B further comprises:
Boundary mobile exchanging center is made sound to the mobile switching centre that starts by current service mobile switching centre and Home Location Register and is answered message, comprises the no response time of boundary mobile exchanging center default configuration in the described response message;
Start mobile switching centre with one greater than the duration of the no response time of boundary mobile exchanging center default configuration triggered time as its call answering waiting timer.
The embodiment of the invention provides a kind of system of Call Forwarding No Reply control, comprising:
Mobile switching centre, Home Location Register, current service mobile switching centre and boundary mobile exchanging center start;
The described mobile switching centre that starts is used for communicating by described Home Location Register and described current service mobile switching centre and described boundary mobile exchanging center, and described communication comprises:
When the call direction callee makes a call, described start mobile switching centre by and Home Location Register, current service mobile switching centre and boundary mobile exchanging center between request and response message carry out the parameter transmission set up calling out, and is set the no response time that self call answering stand-by period is provided with greater than described boundary mobile exchanging center in the mobile switching centre that starts described in the described parameter transmittance process;
Described boundary mobile exchanging center is used for after setting up calling between described calling party and the callee, if the still no response of no response timer expiry callee of described boundary mobile exchanging center then triggers Call Forwarding No Reply.
Further, described boundary mobile exchanging center, be further used for receiving the inter-system paging message that described current service mobile switching centre sends, the no response time cell that comprises the callee in the described inter-system paging message, described callee's no response time cell is obtained from the route request information that the described mobile switching centre that starts that receives sends by described current service mobile switching centre; With triggered time no response time of described callee as its Call Forwarding No Reply trigger.
Further, the described mobile switching centre that starts is further used for sending out location request message to described Home Location Register, comprises the call answering stand-by period cell of the described mobile switching centre that starts in the described location request message;
Described Home Location Register is further used for sending out route request information to current service mobile switching centre, comprises the call answering stand-by period cell of the mobile switching centre that starts in the described route request information; Described current service mobile switching centre is further used for receiving that route request information backward dege circle mobile switching centre sends out inter-system paging message, has comprised the call answering stand-by period cell of the mobile switching centre that starts in the described inter-system paging message;
Correspondingly, described boundary mobile exchanging center was further used for one less than the duration of the call answering stand-by period of the described mobile switching centre that the starts triggered time as its no response timer.
Further, described boundary mobile exchanging center, be further used for making sound to the described mobile switching centre that starts and answer message, comprise the no response time of boundary mobile exchanging center default configuration in the described response message by described current service mobile switching centre and described Home Location Register;
Correspondingly, the described mobile switching centre that starts was further used for one greater than the duration of the no response time of the described boundary mobile exchanging center default configuration triggered time as its call answering waiting timer.
Because the transmission by signaling parameter between originating MS C and the border MSC is provided with the no response time of the call answering stand-by period of originating MS C greater than border MSC, the no response timer of originating MS C can not take the lead in overtime in the no response time, thereby has guaranteed that Call Forwarding No Reply triggered as normal and forwarded calls correctly connect.
Description of drawings
Fig. 1 is the relevant inter-system paging signaling process figure of paging early.
Fig. 2 is the block diagram of first embodiment of the method for the invention.
Fig. 3 is the block diagram of second embodiment of the method for the invention.
Fig. 4 is the block diagram of the 3rd embodiment of the method for the invention.
Fig. 5 is the structure chart of first embodiment of device of the present invention.
Fig. 6 is the structure chart of second embodiment of device of the present invention.
Fig. 7 is the structure chart of the 3rd embodiment of device of the present invention.
Embodiment
Below in conjunction with drawings and Examples the present invention is done further introduction, but not as a limitation of the invention.
Be illustrated in figure 2 as first embodiment of the method for the invention, also be most preferred embodiment, utilize between system of the present invention the control method of Call Forwarding No Reply in the paging early, when calling party is called out the callee, avoid between system the step of Call Forwarding No Reply call failure in the paging early specific as follows:
1) the call direction callee at originating MS C makes a call, and originating MS C sends out location request message to HLR;
2) HLR inquiry callee current location information is sent out route request information to current service MSC then, comprises " no response time " cell of callee in the message, and this time is 20 seconds, i.e. NoAnswer Time=20 second;
3) current service MSC receives that route request information backward dege circle MSC sends out inter-system paging message, comprises " no response time " cell in the message;
4) border MSC paging called partner in the native system area of coverage is received behind callee's page response page response between current service MSC transmitting system earlier, comprises the temporary position call number in this response;
5) current service MSC sends the route requests response message to HLR, comprises the temporary position call number in this response message;
6) HLR sends out position request response message to originating MS C, comprises the temporary position call number in this response message;
7) originating MS C starts the call answering waiting timer, and with temporary position call number and border MSC foundation calling, wherein the call answering stand-by period is decided to be 30 seconds, i.e. Twanswer1=30 second;
8) behind the call setup, border MSC sends out bell signal to the callee, and use the no response time no response time from inter-system paging message, receive as border MSC, the triggered time that is about to the no response timer of border MSC was made as 20 seconds, Tnoanswer2=20 second, no response timer in the start-up system is waited for callee's call answering;
9) if still no response of no response timer expiry callee, border MSC can trigger no-answer call connection.
The default no response time of hypothetical boundary MSC is 35 seconds, if border MSC adopts the triggered time of this time as its no response timer, and the call answering stand-by period Twanswer1 of originating MS C is 30 seconds, cause calling to stop so originating MS C can take the lead in overtime, thereby border MSC can't trigger Call Forwarding No Reply.
And adopt method of the present invention, border MSC adopts the triggered time of callee's no response time as its no response timer, be the call answering stand-by period Twanswer1=30 second of originating MS C in the present embodiment, the no response time T noanswer2=20 second of border MSC, Twanswer1＞Tnoanswer2, thereby guaranteed that border MSC triggers Call Forwarding No Reply before originating MS C is overtime.
Be illustrated in figure 3 as second embodiment of the method for the invention, when calling party is called out the callee, avoid between system the step of Call Forwarding No Reply failure in the paging early as follows:
1) the call direction callee at originating MS C makes a call, originating MS C sends out location request message to HLR, except comprising original cell, also having comprised the call answering stand-by period of originating MS C in described location request message, is Twanswer1=30 second in this example;
2) HLR inquiry callee current location information, send out route request information to current service MSC then, in comprising signaling, original cell, also comprised the call answering stand-by period Twanswer1=30 second of the originating MS C that from location request message, sends in the message;
3) current service MSC receives that route request information backward dege circle MSC sends out in the inter-system paging message original cell, also comprised the call answering stand-by period Twanswer1=30 second of the originating MS C that sends from route request information in comprising signaling;
4) border MSC paging called partner in the native system area of coverage is received behind callee's page response page response between current service MSC transmitting system earlier, comprises the temporary position call number in this response;
5) current service MSC sends the route requests response message to HLR, comprises the temporary position call number in this response message;
6) HLR sends out position request response message to originating MS C, comprises the temporary position call number in this response message;
7) originating MS C starts the call answering waiting timer, and sets up calling with the temporary position call number to border MSC, and wherein the call answering stand-by period is decided to be 30 seconds, i.e. Twanswer1=30 second;
8) behind the call setup, border MSC sends out bell signal to the callee, and get one less than the Twanswer1=30 time of second, for example border MSC sets Twanswer1 is deducted 10 seconds, as the no response time of border MSC, the triggered time that is about to the no response timer of border MSC was made as 20 seconds, Tnoanswer2=20 second, no response timer in the start-up system is waited for callee's call answering;
9) if still no response of no response timer expiry callee, border MSC can trigger Call Forwarding No Reply.
Adopt the described method of present embodiment, the call answering stand-by period of originating MS C is Twanswer1=30 second, border MSC adopted less than the triggered time as its no response timer call answering stand-by period of originating MS C, be Tnoanswer2=20 second in the present embodiment, Twanswer1＞Tnoanswer2, thereby guaranteed that border MSC triggers Call Forwarding No Reply before originating MS C is overtime.
Be illustrated in figure 4 as the 3rd embodiment of the method for the invention, when calling party is called out the callee, avoid between system the step of Call Forwarding No Reply failure in the paging early as follows:
1) the call direction callee at originating MS C makes a call, and originating MS C sends out location request message to HLR;
2) HLR inquiry callee current location information is sent out route request information to current service MSC then;
3) current service MSC receives that route request information backward dege circle MSC sends out inter-system paging message;
4) border MSC paging called partner in the native system area of coverage, receive behind callee's page response page response between current service MSC transmitting system earlier, except comprising original cell such as temporary position call number, also comprise the no response time T noanswer2=35 second of border MSC default configuration in this response;
5) current service MSC sends the route requests response message to HLR, except comprising original cell such as temporary position call number, also comprises the no response time of the border MSC default configuration that is transmitted by ispage in this response message, Tnoanswer2=35 second;
6) HLR sends out position request response message to originating MS C, except comprising original cell such as temporary position call number, also comprises the no response time T noanswer2=35 second of the border MSC default configuration that is transmitted by position request response message in this response message;
7) originating MS C starts the call answering waiting timer, duration with a no response time (Tnoanswer2=35 second) greater than border MSC default configuration, for example originating MS C sets Tnoanswer2 is added 5 seconds, promptly 40 seconds, as the triggered time of its call answering waiting timer, be the call answering stand-by period Twanswer1=40 second of originating MS C, and set up calling to border MSC with the temporary position call number;
8) behind the call setup, border MSC sends out bell signal to the callee, and no response timer in the start-up system, waits for callee's call answering;
9) if still no response of no response timer expiry callee, border MSC can trigger no-answer call connection.
Adopt the described method of present embodiment, originating MS C adopted greater than the triggered time as its call answering waiting timer no response time of border MSC default configuration, be the call answering stand-by period Twanswer1=40 second of originating MS C in the present embodiment, the no response time T noanswer2=30 second of border MSC, Twanswer1) Tnoanswer2, thereby guaranteed that border MSC triggers Call Forwarding No Reply before originating MS C is overtime.
As Fig. 5, Fig. 6, shown in Figure 7, the present invention also provides a kind of Call Forwarding No Reply control device, transmission and the cooperation between the timer by request between the mobile switching centre that starts, Home Location Register, current service mobile switching centre and the boundary mobile exchanging center and response message realize Call Forwarding No Reply, comprise parameter transmission module;
Described parameter transmission module is used to start and carries out the parameter transmission with the foundation calling by request and response message between mobile switching centre, Home Location Register, current service mobile switching centre and the boundary mobile exchanging center, and the no response time of the call answering stand-by period of the mobile switching centre that starts greater than boundary mobile exchanging center is set;
As shown in Figure 5, parameter transmission module of the present invention comprises no response time transmission module and no response time writing module;
Described no response time transmits module and is used for current service mobile switching centre and receives that route messages backward dege circle mobile switching centre sends out inter-system paging message, has comprised the callee's who is sent by Home Location Register no response time cell in the described inter-system paging message;
Described no response time writing module is with described callee's the no response time cell triggered time as its Call Forwarding No Reply trigger.
No response time NoAnswerm Time=20 second of callee in the present embodiment, with its triggered time as border MSC no response timer, it is Tnoanswer2=20 second, the call answering of originating MS C is waited for stand-by period Twanswer1=30 second, thereby the call answering stand-by period of originating MS C is greater than the time of the no response timer of border MSC, be Twanswer1＞Tnoanswer2, guaranteed the triggered as normal of Call Forwarding No Reply.
As shown in Figure 6, the invention provides second kind of parameter and transmit module, comprise call answering stand-by period transmission module and call answering stand-by period writing module;
The described call answering stand-by period transmits module and is used for: 1) the call direction callee in the mobile switching centre that starts makes a call, location request message is sent out to Home Location Register by the mobile switching centre that starts, and comprises the call answering stand-by period of the mobile switching centre that starts in the described location request message; 2) Home Location Register inquiry callee current location information is sent out route request information to current service mobile switching centre then, comprises the call answering stand-by period of the mobile switching centre that starts in the described route request information; 3) current service mobile switching centre receives that route messages backward dege circle mobile switching centre sends out inter-system paging message, has comprised the call answering stand-by period cell of the mobile switching centre that starts in the described inter-system paging message;
After the described call answering stand-by period, writing module was used for call setup, boundary mobile exchanging center is sent out bell signal to the callee, boundary mobile exchanging center with one less than the duration of the call answering stand-by period of the described mobile switching centre that starts triggered time as its no response timer.
The call answering of originating MS C is waited for stand-by period Twanswer1=30 second in the present embodiment, will be less than triggered time time of this value as border MSC no response timer, as Tnoanswer2=20 second, thereby the call answering stand-by period of originating MS C is greater than the time of the no response timer of border MSC, be Twanswer1＞Tnoanswer2, guaranteed the triggered as normal of Call Forwarding No Reply.
As shown in Figure 7, the invention provides the third parameter and transmit module, comprise default no response time transmission module and default no response time writing module;
The described default no response time transmits module and is used for boundary mobile exchanging center paging called partner in the native system area of coverage, receiving behind callee's page response makes sound to the mobile switching centre that starts by current service mobile switching centre and Home Location Register answers message, comprises the no response time cell of boundary mobile exchanging center default configuration in the described response message;
Described default no response time writing module be used to start mobile switching centre with one greater than the duration of the no response time of boundary mobile exchanging center default configuration triggered time as its call answering waiting timer, start the call answering waiting timer, and set up calling with boundary mobile exchanging center.
The default no response time of border MSC is 35 seconds in the present embodiment, it is Tnoanswer2=35 second, will be greater than triggered time time of this value as originating MS C call answering waiting timer, as Twanswer1=40 second, the call answering stand-by period of originating MS C is greater than the time of the no response timer of border MSC, be Twanswer1＞Tnoanswer2, guaranteed the triggered as normal of Call Forwarding No Reply.
Claims (8)
1, a kind of control method of Call Forwarding No Reply is characterized in that, may further comprise the steps:
Steps A: calling party makes a call to the callee by the mobile switching centre that starts;
Step B: carry out the parameter transmission by request and response message between the mobile switching centre that starts, Home Location Register, current service mobile switching centre and the boundary mobile exchanging center and call out, and the no response time of the call answering stand-by period of the mobile switching centre that starts greater than boundary mobile exchanging center is set in described parameter transmittance process to set up;
Step C: after setting up calling between calling party and the callee, if the still no response of no response timer expiry callee of boundary mobile exchanging center, boundary mobile exchanging center triggers Call Forwarding No Reply.
2, the control method of a kind of Call Forwarding No Reply as claimed in claim 1 is characterized in that, described step B further comprises:
Current service mobile switching centre receives that route request information backward dege circle mobile switching centre sends out inter-system paging message, has comprised the no response time cell of the callee in the described route request information in the described inter-system paging message;
Boundary mobile exchanging center is with the triggered time as its Call Forwarding No Reply trigger no response time of described callee.
3, the control method of a kind of Call Forwarding No Reply as claimed in claim 1 is characterized in that, described step B further comprises:
Location request message is sent out to Home Location Register by the mobile switching centre that starts, and comprises the call answering stand-by period cell of the mobile switching centre that starts in the described location request message;
Home Location Register is sent out route request information to current service mobile switching centre, comprises the call answering stand-by period cell of the mobile switching centre that starts in the described route request information;
Current service mobile switching centre receives that route request information backward dege circle mobile switching centre sends out inter-system paging message, has comprised the call answering stand-by period cell of the mobile switching centre that starts in the described inter-system paging message;
Boundary mobile exchanging center with one less than the duration of the call answering stand-by period of the described mobile switching centre that starts triggered time as its no response timer.
4, the control method of a kind of Call Forwarding No Reply as claimed in claim 1 is characterized in that, described step B further comprises:
Boundary mobile exchanging center is made sound to the mobile switching centre that starts by current service mobile switching centre and Home Location Register and is answered message, comprises the no response time of boundary mobile exchanging center default configuration in the described response message;
Start mobile switching centre with one greater than the duration of the no response time of boundary mobile exchanging center default configuration triggered time as its call answering waiting timer.
5, a kind of system of Call Forwarding No Reply control is characterized in that, comprising:
Mobile switching centre, Home Location Register, current service mobile switching centre and boundary mobile exchanging center start;
The described mobile switching centre that starts is used for communicating by described Home Location Register and described current service mobile switching centre and described boundary mobile exchanging center, and described communication comprises:
When the call direction callee makes a call, described start mobile switching centre by and Home Location Register, current service mobile switching centre and boundary mobile exchanging center between request and response message carry out the parameter transmission set up calling out, and is set the no response time that self call answering stand-by period is provided with greater than described boundary mobile exchanging center in the mobile switching centre that starts described in the described parameter transmittance process;
Described boundary mobile exchanging center is used for after setting up calling between described calling party and the callee, if the still no response of no response timer expiry callee of described boundary mobile exchanging center then triggers Call Forwarding No Reply.
6, the system of Call Forwarding No Reply control as claimed in claim 5 is characterized in that,
Described boundary mobile exchanging center, be further used for receiving the inter-system paging message that described current service mobile switching centre sends, the no response time cell that comprises the callee in the described inter-system paging message, described callee's no response time cell is obtained from the route request information that the described mobile switching centre that starts that receives sends by described current service mobile switching centre;
With triggered time no response time of described callee as its Call Forwarding No Reply trigger.
7, the system of Call Forwarding No Reply control as claimed in claim 5 is characterized in that,
The described mobile switching centre that starts is further used for sending location request message to described Home Location Register, comprises the call answering stand-by period cell of the described mobile switching centre that starts in the described location request message;
Described Home Location Register is further used for sending out route request information to current service mobile switching centre, comprises the call answering stand-by period cell of the mobile switching centre that starts in the described route request information;
Described current service mobile switching centre is further used for receiving that route request information backward dege circle mobile switching centre sends out inter-system paging message, has comprised the call answering stand-by period cell of the mobile switching centre that starts in the described inter-system paging message;
Correspondingly, described boundary mobile exchanging center was further used for one less than the duration of the call answering stand-by period of the described mobile switching centre that the starts triggered time as its no response timer.
8, the system of Call Forwarding No Reply control as claimed in claim 5 is characterized in that,
Described boundary mobile exchanging center, be further used for making sound to the described mobile switching centre that starts and answer message, comprise the no response time of boundary mobile exchanging center default configuration in the described response message by described current service mobile switching centre and described Home Location Register;
Correspondingly, the described mobile switching centre that starts was further used for one greater than the duration of the no response time of the described boundary mobile exchanging center default configuration triggered time as its call answering waiting timer.
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| CNB2005101023976A CN100550948C (en) | 2005-12-08 | 2005-12-08 | A kind of control method of Call Forwarding No Reply and system |
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| CNB2005101023976A CN100550948C (en) | 2005-12-08 | 2005-12-08 | A kind of control method of Call Forwarding No Reply and system |
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