CN1859515A - Method for realizing conference telephone - Google Patents

Abstract

The present invention discloses realizing conference telephone method. Said method includes configuring leading number having conference member terminal number; originating mobile switching center MSC receiving conference originating side originated called number as leading number of originating, resolving said leading number, obtaining routing information of conference member terminal number in said leading number, then according to acquired routing information calling conference member terminal. Said invention has advantages of avoiding conference originated side one by one inputting all conference member terminal number, simplifying conference originated side operation. Furthermore, in one preferred embodiment, HLR sends together the all conference member terminal number routing information to originating MSC, therefore without many times signaling interaction between originating MSC and HLR, reducing signaling flow rate between MSC and HLR.

Description

A kind of method that realizes conference telephone

Technical field

The present invention relates to the network voice communication technology, particularly relate to a kind of method that realizes conference telephone.

Background technology

Conference telephone (CC, Conference Calling) business is a kind of voice communication service, and it is mainly used in three or more users and converses simultaneously, is initiated other a plurality of users' calling is connected by a user, the calling subscriber is called the meeting initiator, and the called subscriber is called conference member.Set up in case connect, if any one conference member is taken out stitches, to not influence of other user who participates in a conference, other user can also proceed conversation; If meeting the initiator take out stitches, the user's that other participates in a conference connection also will disconnect, and this calling is released.

System after the user provides conference telephone service, the user can be at any time as the meeting initiator phone of holding a meeting, convene a plurality of users to discuss simultaneously, this has just made things convenient for the interchange between the user.For these reasons, for operator, provide conference telephone service can produce professional increment.Therefore, conference telephone service more and more receives publicity and payes attention to, and realizes that the technology of conference telephone also becomes focus.

The existing technology of conference telephone that realizes is followed the regulation of telecommunication TIA/Electronic Industries Association (TIA/EIA)-41-D and American National Standards Institute (ANSI)/TIA/EIA-664, import the number of conferenced party's (being designated hereinafter simply as the callee) one by one by meeting initiator (being designated hereinafter simply as master control side), mobile switching centre (MSC) sent the FEATURE service request to the attaching position register (HLR) relevant with master control side's travelling carriage (MS) respectively under master control side was current, this HLR returns callee's routing iinformation respectively, the MSC callee that continues respectively under master control side is current.

Obviously, there is following defective in the implementation of this conference telephone: at first, master control side is when making a call, need import callee's number one by one, in callee's quantity more for a long time, importing the work of numerous callee's numbers one by one will make troubles to the operation of master control side, and this has limited the application of conference telephone service to a great extent; Secondly, callee of the every calling in master control side, under master control side current MSC will with the mutual signaling of HLR, more for a long time,, thereby cause network congestion in callee's quantity with the signaling traffic that increases between MSC and the HLR.

Summary of the invention

Main purpose of the present invention is to provide a kind of method that realizes conference telephone, simplifies the troublesome operation that the videoconference initiator imports the conference member telephone number one by one.

The objective of the invention is to be achieved through the following technical solutions:

A kind of method that realizes conference telephone, it comprises:

A, setting comprise the guide number of conference member termination number;

It is after exhaling beginning of guide number that B, the moving exchanging center MSC that starts receive called number that the meeting initiator initiates, parse this guide number, obtain the routing iinformation of the termination number of the conference member that this guide number comprises, then according to the routing iinformation call-conference member's who is obtained terminal.

Wherein, the described guide number that is provided with of steps A is: the guide number that comprises the conference member termination number is set in attaching position register HLR.

Wherein, the described originating MS C of the step B routing iinformation that obtains the termination number of conference member comprises:

B01, originating MS C obtain the conference member termination number that guide number comprises from the HLR that preserves this guide number;

B02, originating MS C with the fixed phone terminal number in the meeting member terminal number directly as the routing iinformation of fixed terminal number, and by this HLR and VLR Visitor Location Register VLR the current service MSC of the mobile terminal number from the conference member termination number obtains the routing iinformation of mobile terminal number respectively.

Wherein, step B01 comprises:

B011, originating MS C transmission comprises the position requests of this guide number to described HLR;

B012, described HLR obtain the termination number of the conference member that this guide number comprised of its preservation, and the position response that will comprise the termination number of conference member is sent to originating MS C;

The described originating MS C of step B02 obtains routing iinformation by HLR and VLR and comprises:

B021, originating MS C send the position requests that comprises mobile terminal number respectively to described HLR;

B022, described HLR send the route requests that comprises mobile terminal number respectively to described VLR, and described VLR is forwarded to route requests the current service MSC of portable terminal respectively;

The current service MSC of B023, portable terminal determines the routing iinformation of corresponding portable terminal, and send respectively comprise corresponding mobile terminal number routing iinformation route response to described VLR, described VLR is forwarded to route response described HLR respectively;

The position that B024, described HLR send the routing iinformation that comprises mobile terminal number respectively responds to originating MS C.

Wherein, the described position requests of step B011 further comprises the disposal ability parameter of originating MS C;

Further comprise between step B011 and the step B012: described HLR judges according to described disposal ability parameter whether originating MS C has the ability of supporting conference telephone, if, execution in step B012 then; Otherwise withdraw from this flow process.

Wherein, the described originating MS C of the step B routing iinformation that obtains the termination number of conference member comprises:

B11, originating MS C transmission comprises the position requests of this guide number to described HLR;

The conference member termination number that this guide number of information extraction of this guide number that B12, described HLR preserve according to self is comprised;

B13, described HLR with the fixed phone terminal number in the meeting member terminal number directly as the routing iinformation of fixed phone terminal number, and obtain the routing iinformation of mobile terminal number respectively by the current service MSC of the mobile terminal number of VLR from the conference member termination number, and the routing iinformation that will comprise the conference member termination number is sent to originating MS C.

Wherein, the described HLR of step B13 obtains routing iinformation by VLR and comprises:

B131, described HLR send the route requests that comprises mobile terminal number respectively to described VLR, and described VLR transmits the current service MSC of route requests to portable terminal respectively;

The current service MSC of B132, portable terminal determines the routing iinformation of corresponding mobile terminal number, and send respectively comprise corresponding mobile terminal number routing iinformation route response to described VLR, described VLR transmits route response respectively to described HLR;

B133, described HLR send the position that comprises conference member termination number routing iinformation and respond to originating MS C.

Wherein, the described position requests of step B11 further comprises the disposal ability parameter of originating MS C;

Further comprise between step B11 and the step B12: described HLR judges according to described disposal ability parameter whether originating MS C has the ability of supporting conference telephone, if, execution in step B12 then; Otherwise withdraw from this flow process.

Wherein, the routing iinformation of described mobile terminal number is the temporary number book number TLDN of the current service MSC of portable terminal for its distribution.

Wherein, if the meeting initiator is a portable terminal, it is connection management CM business request information that the beginning that described originating MS C receives exhales;

If the meeting initiator is a fixed terminal, it is the IAM that initial address message IAM/ has additional information that the beginning that described originating MS C receives exhales.

From technique scheme as can be seen, the method of realization conference telephone of the present invention is that the guide number that comprises the conference member termination number is set, the meeting initiator dials this guide number, after originating MS C obtains the routing iinformation of the conference member termination number that this guide number comprises, call-conference member's terminal.The invention has the advantages that and to avoid the meeting initiator to import all conference member termination numbers one by one, simplified meeting initiator's operation greatly.In addition, in a preferred embodiment of the invention, HLR sends to originating MS C together behind the routing iinformation that has obtained all conference member termination numbers, therefore need not between originating MS C and the HLR repeatedly Signalling exchange, thereby reduced the signaling traffic between MSC and the HLR at a plurality of conference member termination numbers.

Description of drawings

Fig. 1 is the indicative flowchart according to the realization conference telephone of the embodiment of the invention one.

Fig. 2 is the indicative flowchart according to the realization conference telephone of the embodiment of the invention two.

Embodiment

In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is further described below in conjunction with the drawings and specific embodiments.

The method of realization conference telephone provided by the invention is compared with existing method, increased conference telephone guide number (hereinafter referred is a guide number), set in advance a guide number that comprises a plurality of conference member termination numbers, when master control side initiates conference telephone, dial this guide number, MSC obtained the number of a plurality of conference member terminals that comprise in this guide number under master control side was current, and behind the routing iinformation that obtains a plurality of conference member termination numbers, called out a plurality of conference member terminals.

Introduce method of the present invention in detail below by two embodiment.

Embodiment one:

Fig. 1 is the indicative flowchart according to the realization conference telephone of the embodiment of the invention one.In the present embodiment, suppose to comprise three conference members among the guide number LN1, one of them is a landline telephone, and telephone number is CC-DN1, and two other is to belong to same HLR and current travelling carriage by same MSC service, and number is respectively MIN1 and MIN2.Referring to Fig. 1, present embodiment specifically comprises the steps:

Step 101: master control side sets in advance with the corresponding guide number LN1 of meeting member number sign indicating number and with LN1 and is kept on the HLR relevant with master control side.If master control side is a mobile phone, then relevant with master control side HLR is for preserving the HLR of master control side's data; If master control side is a landline telephone, then relevant with master control side HLR is that conference telephone service is master control side's storing call conferencing information and selected HLR.Usually, the form of the guide number of conference telephone is identical with the number of portable terminal.

Master control can be with by being provided with guide number to multiple modes such as conference telephone service are provided with.So that conference telephone service is set to example, in the time of in master control side the conference telephone guide number need being set, dial the service number of conference telephone service, and import all conference member number and guide numbers one by one according to voice suggestion, the operation controlling entity of conference telephone is kept at guide number and corresponding conference member number thereof among the relevant HLR then.

Perhaps, master control side also can pass through to the mode that the telecom operation point applies in writing guide number is set, and the operation controlling entity of conference telephone is kept at guide number and corresponding conference member number thereof among the relevant HLR then.

Step 102: the current service MSC of master control side (hereinafter referred is originating MS C) receives the initial call of master control side, and the called number of this initial call is guide number LN1.

Step 103: originating MS C parses the number LN1 that dials master control side, and to HLR transmission position requests (LOCREQ) message relevant with master control side, this LOCREQ message comprises the number (DGTDIAL) dialed master control side and the disposal ability parameter (TRANSCAP) of originating MS C on terminal, wherein DGTDIAL is guide number LN1.

Step 104:HLR judges according to the value of the TRANSCAP parameter that receives whether originating MS C has the ability to support a conference call, if originating MS C has the ability to support conference call that then execution in step 105; Otherwise, return the refusal response to originating MS C, finish this time to call out, withdraw from this flow process.

For example, if, illustrating originating MS C more than or equal to pre-set threshold, the value of TRANSCAP parameter has the ability to support conference call; If, illustrating originating MS C less than pre-set threshold, the value of TRANSCAP parameter do not have ability to support conference call.

Step 105:HLR extracts callee's number from the number information of the LN1 that self preserves, in the present embodiment, callee's number is respectively CC-DN1, MIN1 and MIN2, HLR with CC-DN1 directly as its routing iinformation, then, branch information (Leginfo) for each branch in callee MIN1 and the many callings of MIN2 allocation identification, and VLR Visitor Location Register (VLR) sends two route requests (ROUTREQ) message respectively under MIN1 and MIN2 current, one of them ROUTREQ message comprises MIN1 and Leginfol, comprises MIN2 and Leginfo2 in another ROUTREQ message.

Step 106:VLR is the mobile station MS 1 of MIN1 and MIN2 and current affiliated MSC, i.e. the called MS C of MS2 with ROUTREQ forwards to the number that receives.

Step 107: called MS C confirms respectively whether MS1 and MS2 idle, if 1 free time of mobile station MS then be MS1 distribution temporary number book number 1 (TLDN1), return then comprise TLDN1 route response (routreq) message to VLR; If 2 free time of mobile station MS then are MS2 distribution T LDN2, return then comprise TLDN2 routreq message to VLR.

Two routreq forwards that step 108:VLR will receive are to HLR.

After step 109:HLR received two routreq message, to originating MS C home position response (locreq) message, this locreq message comprised the member's tabulation and the routing iinformation of conference telephone.In the present embodiment, member's tabulation is CC-DN1, MIN1 and MIN2, and the routing iinformation of MIN1 and MIN2 is respectively TLDN1 and TLDN2, and the routing iinformation of landline telephone is a fixed telephone number itself.

After step 110: originating MS C receives locreq message, can send to master control side and call out acknowledge message.

Step 111: originating MS C is set up to the calling of CC-DN1, TLDN1 and TLDN2 simultaneously according to the tabulation of the member in the locreq message and each member's routing iinformation.

Originating MS C calls out CC-DN1 by the initial address message (IAI) that sends initial address message (IAM)/have additional information to Public Switched Telephone Network (PSTN).

Step 112: number is after terminal, MS1 or the MS2 of CC-DN1 replys, to enter meeting, and master control can be with number to be user's speech of terminal, MS1 and the MS2 of CC-DN1.

If user's dont answer is arranged, master control can be to call out this user after a while, and its operation is identical with the call flow of prior art conference telephone, does not repeat them here.

In above-mentioned steps 105 to 108, HLR has sent route requests to two terminal calleds to called MS C respectively, and called MS C has returned two route responses to HLR respectively.For clarity, suppose that route requests and the route response to two terminal calleds is concurrent in above-mentioned several steps, for example VLR has received after two route requests, transmits route requests to called MS C simultaneously.In fact, to the route requests of one of them terminal called and route response and to the route requests and the not free order successively of route response of another one terminal called, for example, after VLR receives route requests to one of them terminal called, promptly transmit this route requests to called MS C, then, after the route requests that receives another terminal called, transmit this route requests to called MS C again.

In step 105, if after HLR all conference member numbers in taking out guide number, find that these numbers are fixed telephone number, then not to the VLR request route information, but directly all conference member numbers being returned originating MS C as routing iinformation, originating MS C calls out the number of all conference members.

From technique scheme as can be seen, in the present embodiment, after HLR receives the position requests that originating MS C sends, initiate route requests respectively to VLR to a plurality of terminal calleds, behind the routing iinformation that receives a plurality of route responses that VLR returns, obtained the pairing a plurality of terminal calleds of guide number, return the position request response of the routing iinformation that comprises a plurality of terminal calleds to originating MS C, call out terminal called by originating MS C.Like this, master control side only need dial a guide number, and need not to import one by one the number of each terminal called when initiating videoconference, has simplified the operation of master control side.And HLR issues originating MS C together with the routing iinformation of a plurality of terminal calleds, has reduced the signaling traffic between originating MS C and the HLR.Because the scheme of embodiment one has above-mentioned 2 advantages, so embodiment one is a preferred embodiment of the present invention.

Embodiment two:

Fig. 2 is the flow chart according to the realization conference telephone of the embodiment of the invention two.In the present embodiment, still suppose to comprise three conference members in certain guide number, one of them is a landline telephone, and telephone number is CC-DN1, two other is to belong to same HLR and current mobile station MS 1 and MS2 by same MSC service, and number is respectively MIN1 and MIN2.Referring to Fig. 2, present embodiment specifically comprises the steps:

Step 201 is identical to step 103 with the step 101 of embodiment one to step 203, does not repeat them here.

Step 204:HLR judges according to the TRANSCAP parameter that receives whether originating MS C has the ability to support a conference call, if then execution in step 205; Otherwise, refuse this calling, withdraw from this flow process.

Step 205:HLR takes out the number of all members among the LN1 that self preserves, sends position response (locreq) message then to originating MS C, and this locreq message comprises the list of numbers of all members among the LN1.

In the present embodiment, list of numbers is member's number that LN1 comprised, i.e. MS1, MS2 and CC-DN1.

Step 206: originating MS C is according to the list of numbers obtained, and CC-DN1 directly as its routing iinformation, and is sent two LOCREQ message to HLR, comprises MS1 in one of them LOCREQ message, comprises MS2 in another LOCREQ message.

After step 207:HLR receives LOCREQ message, send route requests (ROUTREQ) message to VLR, one of them ROUTREQ message comprises MIN1, and another ROUTREQ message comprises MIN2, transmits the current MSC of two ROUTREQ message to the called subscriber respectively by VLR.

Step 208: called MS C confirms respectively whether MS1 and MS2 idle, if 1 free time of mobile station MS then be MS1 distribution temporary number book number 1 (TLDN1), return then comprise TLDN1 route response (routreq) message to VLR; If 2 free time of mobile station MS then are MS2 distribution T LDN2, return then comprise TLDN2 routreq message to VLR, two routreq forwards that VLR will receive are to HLR.

After step 209:HLR received two routreq message, to originating MS C home position response (locreq) message, this locreq message comprised the member's tabulation and the routing iinformation of conference telephone.

Step 210 is identical to step 112 with the step 110 of embodiment one to step 212.

In above-mentioned steps 206 to 209, originating MS C sends position requests to each terminal called to HLR respectively, HLR sends route requests to called MS C to each terminal called respectively via VLR, called MS C sends route response to HLR to each terminal called respectively via VLR, and HLR sends the position response to each terminal called to originating MS C respectively.Need explanation, similar with embodiment one, be not concurrent to the message of each terminal called, the order before and after not free.

In step 206,,, but directly call the number of all conference members then not to the VLR request route information if after originating MS C all conference member numbers in receiving the guide number that HLR returns, find that these numbers are fixed telephone number.

From technique scheme as can be seen, in the present embodiment, after HLR receives the position requests that originating MS C sends, return the information of all terminal calleds of preserving in the guide number to originating MS C, initiate position requests by originating MS C respectively to HLR to each terminal called, HLR initiates route requests to called MS C respectively via VLR, after receiving the route response that called MS C returns, return the position response of each terminal called respectively to originating MS C, by the terminal called of called MS C guiding call number correspondence.Like this, master control side only need dial a guide number, and need not to import one by one each callee's number when initiating videoconference, has simplified the operation of master control side.

In above-mentioned two embodiment, guide number does not comprise the number of master control side, should be appreciated that, the number of master control side can be included within the guide number, comprise at guide number under the situation of master control side's number, the flow process that realizes conference telephone is identical with the flow process of above-mentioned two embodiment, does not repeat them here.

In above-mentioned two embodiment, master control side is the mobile subscriber, should be appreciated that, master control side also can be the fixed telephone subscriber, its implementation and master control side are that mobile subscriber's mode is basic identical, institute's difference only is that for the master control side of landline telephone, the beginning that originating MS C receives is called for Seeking Truth PSTN and transmits the message such as IAM/IAI of coming; For the master control side of mobile phone, the beginning that originating MS C receives is called for Seeking Truth connection management (CM) business request information.

In concrete implementation process, can carry out suitable improvement, to adapt to the concrete needs of concrete condition to the method according to this invention.Therefore be appreciated that according to the specific embodiment of the present invention just to play an exemplary role, not in order to restriction protection scope of the present invention.

Claims (10)

1, a kind of method that realizes conference telephone is characterized in that, comprising:

A, setting comprise the guide number of conference member termination number;

It is after exhaling beginning of guide number that B, the moving exchanging center MSC that starts receive called number that the meeting initiator initiates, parse this guide number, obtain the routing iinformation of the termination number of the conference member that this guide number comprises, then according to the routing iinformation call-conference member's who is obtained terminal.

2, method according to claim 1 is characterized in that, the described guide number that is provided with of steps A is: the guide number that comprises the conference member termination number is set in attaching position register HLR.

3, method according to claim 2 is characterized in that, the routing iinformation that the described originating MS C of step B obtains the termination number of conference member comprises:

B01, originating MS C obtain the conference member termination number that guide number comprises from the HLR that preserves this guide number;

B02, originating MS C with the fixed phone terminal number in the meeting member terminal number directly as the routing iinformation of fixed terminal number, and by this HLR and VLR Visitor Location Register VLR the current service MSC of the mobile terminal number from the conference member termination number obtains the routing iinformation of mobile terminal number respectively.

4, method according to claim 3 is characterized in that, step B01 comprises:

B011, originating MS C transmission comprises the position requests of this guide number to described HLR;

B012, described HLR obtain the termination number of the conference member that this guide number comprised of its preservation, and the position response that will comprise the termination number of conference member is sent to originating MS C;

The described originating MS C of step B02 obtains routing iinformation by HLR and VLR and comprises:

B021, originating MS C send the position requests that comprises mobile terminal number respectively to described HLR;

B022, described HLR send the route requests that comprises mobile terminal number respectively to described VLR, and described VLR is forwarded to route requests the current service MSC of portable terminal respectively;

The current service MSC of B023, portable terminal determines the routing iinformation of corresponding portable terminal, and send respectively comprise corresponding mobile terminal number routing iinformation route response to described VLR, described VLR is forwarded to route response described HLR respectively;

The position that B024, described HLR send the routing iinformation that comprises mobile terminal number respectively responds to originating MS C.

5, method according to claim 4 is characterized in that, the described position requests of step B011 further comprises the disposal ability parameter of originating MS C;

Further comprise between step B011 and the step B012: described HLR judges according to described disposal ability parameter whether originating MS C has the ability of supporting conference telephone, if, execution in step B012 then; Otherwise withdraw from this flow process.

6, method according to claim 2 is characterized in that, the routing iinformation that the described originating MS C of step B obtains the termination number of conference member comprises:

B11, originating MS C transmission comprises the position requests of this guide number to described HLR;

The conference member termination number that this guide number of information extraction of this guide number that B12, described HLR preserve according to self is comprised;

B13, described HLR with the fixed phone terminal number in the meeting member terminal number directly as the routing iinformation of fixed phone terminal number, and obtain the routing iinformation of mobile terminal number respectively by the current service MSC of the mobile terminal number of VLR from the conference member termination number, and the routing iinformation that will comprise the conference member termination number is sent to originating MS C.

7, method according to claim 6 is characterized in that, the described HLR of step B13 obtains routing iinformation by VLR and comprises:

B131, described HLR send the route requests that comprises mobile terminal number respectively to described VLR, and described VLR transmits the current service MSC of route requests to portable terminal respectively;

The current service MSC of B132, portable terminal determines the routing iinformation of corresponding mobile terminal number, and send respectively comprise corresponding mobile terminal number routing iinformation route response to described VLR, described VLR transmits route response respectively to described HLR;

B133, described HLR send the position that comprises conference member termination number routing iinformation and respond to originating MS C.

8, method according to claim 6 is characterized in that, the described position requests of step B11 further comprises the disposal ability parameter of originating MS C;

Further comprise between step B11 and the step B12: described HLR judges according to described disposal ability parameter whether originating MS C has the ability of supporting conference telephone, if, execution in step B12 then; Otherwise withdraw from this flow process.

9, method according to claim 1 is characterized in that, the routing iinformation of described mobile terminal number is the temporary number book number TLDN of the current service MSC of portable terminal for its distribution.

10, method according to claim 1 is characterized in that, if the meeting initiator is a portable terminal, it is connection management CM business request information that the beginning that described originating MS C receives exhales;

If the meeting initiator is a fixed terminal, it is the IAM that initial address message IAM/ has additional information that the beginning that described originating MS C receives exhales.

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