CN102664863A

CN102664863A - Method, device, and system for realizing call waiting by user equipment

Info

Publication number: CN102664863A
Application number: CN2011104293173A
Authority: CN
Inventors: 屈天喜; 姚清华; 杨建军
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2011-12-20
Filing date: 2011-12-20
Publication date: 2012-09-12
Anticipated expiration: 2031-12-20
Also published as: CN102664863B; WO2013091310A1

Abstract

The invention discloses a method, a device, and a system for realizing call waiting by user equipment. The method, the device, and the system do not support a second incoming call. The method comprises steps that: when first user equipment communicates with second user equipment, third user equipment calls the first user equipment which does not support a second incoming call; and an application server AS which supports terminal communication controls communication between the first user equipment and the third user equipment. The method, the device, and the system of the invention can guarantee that the user equipment which does not support a second incoming call can realize call waiting.

Description

The methods, devices and systems of Call Waiting are realized at the terminal

Technical field

The present invention relates to the communications field, be specifically related to not support the terminal of the second tunnel incoming call to realize the methods, devices and systems of Call Waiting.

Background technology

So-called Call Waiting is meant that the user will hear the Call Waiting prompt tone when the user receives new call request in the conversation that has existed, and expression has the user to wait for conversation with it in addition.Notify new caller waits to answer simultaneously, and play the Call Waiting prompting to this MPTY.The user can select to answer new calling, also can select to refuse new calling, and also can new calling not being processed is no response.

In the prior art, Call Waiting needs user terminal to support the second tunnel incoming call.As shown in Figure 1, can abbreviate as the terminal user terminal (User Equipment, UE) B is NGN (Next Generation Network; Next-generation communication network) or IMS (IP Multimedia Subsystem; IP Multimedia System) user, the call waiting of having contracted, UE A and UE C can be NGN or IMS user; Also can be other networks such as GSM (Global System for Mobile communication; Global system for mobile communications), CDMA (Code Division Multiple Access, code division multiple access inserts), PSTN users such as (Public Switched Telephone Network, public switch telephone networks).Related procedure and signaling step are explained as follows:

Step 01, (Application Server AS) sends Invite (invitation) request to UE A, and the request number is UE B to application server.When UE B and UE C conversation; UE A dials UE B to send the Invite request mode; (Session Description Protocol, SDP) information comprise IP address, port numbers, audio frequency and video attribute, coded format etc. to carry the Session Description Protocol of UE A in the Invite request.

Step 02, AS sends the Invite request to UE B, and the request number is UE B.

Step 03, UE B returns 180Ring (ring) (XML (extend markup language)) or 182 (Queued) queuing Temporary Response to AS.UE B supports the second tunnel incoming call, has the ability to answer the second tunnel incoming call, therefore returns 180Ring (XML) or 182Queued, and expression UE B has received new call request, and is in ringing condition or queueing condition.

Step 04, (Media Resource Server MRS) sends Invite request, the SDP information of wherein carrying UEA to AS to Media Resource Server.AS receives 180Ring (XML) or 182Queued, carries out the call waiting logic, and desire is play the Call Waiting prompt tone to UE A, so set up the playback passage of UE A to MRS.

Step 05, MRS returns 200OK to AS and finally responds, and wherein carries the SDP information of self.

Step 06, AS sends the ACK acknowledge message to MRS.

Step 07, AS returns the 180Ring Temporary Response to UE A, wherein carries the SDP information of MRS.

Step 08, AS sends INFO (notice) request to MRS, and MRS is to UE A playback in indication.

Step 09, MRS returns the 200OK success response to AS.UE A listens the Call Waiting prompt tone, as: please not want on-hook, the phone that you dial is conversed.

Step 10, UE B sends the final response of 200OK (INVITE) to AS, wherein carries the SDP information of self.UE B keeps UE C, and UE C listens to call out and keeps prompt tone, UE B off-hook.

Step 11, AS sends BYE (end) request to MRS.AS stops UE A is play the Call Waiting prompt tone.

Step 12, MRS returns 200OK (BYE) success response to AS.

Step 13, AS sends UPDATE (renewal) request, the SDP information of wherein carrying UE B to UE A.

Step 14, UE A returns 200OK (UPDATE) success response, the SDP information of wherein carrying UE A to AS.

Step 15, AS returns the final response of 200OK (INVITE) to UE A.

Step 16, UE A sends the ACK acknowledge message to AS.

Step 17, AS sends the ACK acknowledge message to UE B.So far, UE A and UE B have accomplished SDP negotiation, get into talking state.

Can see that in the prior art, call waiting has requirement to the terminal, promptly need support the second tunnel incoming call, and can support call keep function.And the requirement of above-mentioned call waiting to the terminal can not be satisfied in present most of terminal; But directly Busy (doing) state is returned in the second tunnel incoming call; Thereby perception is less than the new calling that has from other terminal when conversing with the opposite end at the terminal of not supporting the second tunnel incoming call, and the calling subscriber of this new calling then can only hear the failure prompt tone and have no chance and the said terminal call of not supporting the second tunnel incoming call.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of methods, devices and systems of not supporting the terminal realization Call Waiting of the second tunnel incoming call, so that do not support the terminal of the second tunnel incoming call can realize Call Waiting equally.

For achieving the above object, technical scheme of the present invention is achieved in that

A kind of method of not supporting the terminal realization Call Waiting of the second tunnel incoming call, this method comprises:

When first terminal and second terminal call, the 3rd terminal dials first terminal of not supporting the second tunnel incoming call;

The AS of support terminal communication controls first terminal and the 3rd communication between terminals.

When controlling first terminal and the 3rd communication between terminals, said AS receives the busy response at first terminal, afterwards to the 3rd terminal plays Call Waiting prompt tone, also to the prompt tone of first terminal plays, the second tunnel incoming call and collect the digits.

When controlling first terminal and the 3rd communication between terminals, said AS also joins first terminal and second terminal in the meeting.

Said AS with the method that first terminal and second terminal join in the meeting is:

AS applies for conferencing resource to MRS, and the conversation with first terminal and second terminal joins in the meeting based on this resource.

When controlling first terminal and the 3rd communication between terminals,

If the new calling at the 3rd terminal is selected to answer in first terminal, AS calls out second terminal plays and keeps prompt tone, and with the 3rd terminal and the first terminal bridge joint conversation;

If the new calling at refusal the 3rd terminal is selected at first terminal, AS is to the 3rd terminal plays failure prompt tone;

If first terminal does not give a response the new calling at the 3rd terminal, AS discharges the calling at the 3rd terminal.

This method also comprises: AS to the 3rd terminal plays failure prompt tone after, discharge the calling at the 3rd terminal; And,

If second terminal is the 3rd hanging up terminal during the on-hook not, AS stops to play calling out to second terminal and keeps prompt tone, and second terminal and the first terminal bridge joint are conversed;

If second terminal is first hanging up terminal during the on-hook not, AS discharges the calling at the 3rd terminal, second terminal.

This method also comprises: first terminal is signatory call waiting on AS in advance.

A kind of system that does not support the terminal realization Call Waiting of the second tunnel incoming call, this system comprises terminal, AS; Said terminal comprises first terminal, second terminal, the 3rd terminal; Wherein,

When said first terminal and second terminal call, said the 3rd terminal is used to dial first terminal of not supporting the second tunnel incoming call;

The said AS of support terminal communication is used to control first terminal and the 3rd communication between terminals.

When controlling first terminal and the 3rd communication between terminals, said AS is used to receive the busy response at first terminal, afterwards to the 3rd terminal plays Call Waiting prompt tone, also to the prompt tone of first terminal plays, the second tunnel incoming call and collect the digits.

When controlling first terminal and the 3rd communication between terminals, said AS also is used for first terminal and second terminal are joined meeting.

This system also comprises MRS, when said AS joins first terminal and second terminal in the meeting, be used for to MRS application conferencing resource, and the conversation with first terminal and second terminal joins in the meeting based on this resource.

When controlling first terminal and the 3rd communication between terminals,

If the new calling at the 3rd terminal is selected to answer in first terminal, AS is used for second terminal plays is called out the maintenance prompt tone, and with the 3rd terminal and the first terminal bridge joint conversation;

If the new calling at refusal the 3rd terminal is selected at first terminal, AS is used for the 3rd terminal plays failure prompt tone;

If first terminal does not give a response the new calling at the 3rd terminal, AS is used to discharge the calling at the 3rd terminal.

AS to the 3rd terminal plays failure prompt tone after, also be used to discharge the calling at the 3rd terminal; And,

If second terminal is the 3rd hanging up terminal during the on-hook not, AS also is used for second terminal stopped to play calling out keeping prompt tone, and second terminal and the first terminal bridge joint are conversed;

If second terminal is first hanging up terminal during the on-hook not, AS also is used to discharge the calling at the 3rd terminal, second terminal.

Said first terminal also is used for signatory call waiting on AS in advance.

A kind of device of not supporting the terminal realization Call Waiting of the second tunnel incoming call, this device comprises reception judge module, conversation bridge module; Wherein,

Said reception judge module is used for when first terminal and second terminal call, knows that the 3rd terminal dials first terminal of not supporting the second tunnel incoming call; And draw the judged result that to control first terminal and the 3rd communication between terminals in view of the above;

Said conversation bridge module is used for the said judged result according to said reception judge module, controls first terminal and the 3rd communication between terminals.

Said reception judge module is used to receive the call event that comprises incoming call request, user's ring, user's off-hook.

This device also comprises playback audio mixing module, when being used between first terminal and the 3rd terminal, communicating by letter, receives the busy response at first terminal, afterwards to the 3rd terminal plays Call Waiting prompt tone, also to the prompt tone of first terminal plays, the second tunnel incoming call and collect the digits.

When controlling first terminal and the 3rd communication between terminals, said reception judge module also is used for based on the MRS that links to each other first terminal and second terminal being joined in the meeting.

When said reception judge module joins first terminal and second terminal in the meeting, be used for:

To MRS application conferencing resource, the conversation with first terminal and second terminal joins in the meeting based on this resource.

This device also comprises the calling release module; When controlling first terminal and the 3rd communication between terminals,

If the new calling at the 3rd terminal is selected to answer in first terminal, said playback audio mixing module is used for second terminal plays is called out the maintenance prompt tone, and said conversation bridge module is used for the 3rd terminal and the first terminal bridge joint conversation;

If the new calling at refusal the 3rd terminal is selected at first terminal, said playback audio mixing module is used for the 3rd terminal plays failure prompt tone;

If first terminal does not give a response the new calling at the 3rd terminal, said calling release module is used to discharge the calling at the 3rd terminal.

Said calling release module also is used for: after said playback audio mixing module is to the 3rd terminal plays failure prompt tone, discharge the calling at the 3rd terminal; And,

If second terminal is the 3rd hanging up terminal during the on-hook not, said playback audio mixing module also is used for second terminal stopped to play calling out keeping prompt tone, said conversation bridge module also to be used for second terminal and the first terminal bridge joint are conversed;

If second terminal is first hanging up terminal during the on-hook not, said calling release module also is used to discharge the calling at the 3rd terminal, second terminal.

Said first terminal also is used for signatory call waiting on AS in advance.

This device is arranged among the AS.

It is thus clear that the present invention does not support the terminal of the second tunnel incoming call to realize the methods, devices and systems of Call Waiting, when first terminal and second terminal call, the 3rd terminal can dial first terminal of not supporting the second tunnel incoming call; The AS of support terminal communication controls first terminal and the 3rd communication between terminals.Therefore, the present invention can guarantee not support the terminal of the second tunnel incoming call can realize Call Waiting equally.

Description of drawings

Fig. 1 is the logical flow chart of prior art call waiting;

Fig. 2 is the configuration diagram of system of the present invention;

Fig. 3 a and Fig. 3 b are the logic flow sketch map of the embodiment of the invention;

Fig. 4 is the module diagram of the Call Waiting application server of the embodiment of the invention;

Fig. 5 does not have the schematic flow sheet of Call Waiting authority for the user of the embodiment of the invention;

Fig. 6 is the schematic flow sheet that the former calling both sides of the embodiment of the invention adds meeting;

Fig. 7 answers the schematic flow sheet of new calling for the user of the embodiment of the invention;

Fig. 8 refuses the new schematic flow sheet of calling out for the user of the embodiment of the invention;

Fig. 9 is that the user of the embodiment of the invention is to the unresponsive schematic flow sheet of new calling;

Figure 10 realizes the general flow chart of Call Waiting for the terminal of not supporting the second tunnel incoming call of the embodiment of the invention.

Embodiment

Referring to Fig. 2, Fig. 2 is the configuration diagram of system of the present invention, does following explanation to the Network Element Function among Fig. 2 below:

1, UE: the user is used to the device that makes a call, answer the call and do other call operations, like C net or G net mobile phone, PSTN terminal, IMS terminal etc.

2, AS: the bottom professional ability is provided, as: call out control, state reporting, functions such as ticket generation.

3, MRS: the voice medium ability is provided, be generally media server (Media Server, MS), as playback be provided, collect the digits, function such as audio mixing.

Use agreement is following in the concrete network element:

1, AS is with can be based on the media negotiation of call conversation between MRS or the UE; AS and UE use the Session Initiation Protocol intercommunication through core net; AS is with using Session Initiation Protocol or MGCP (Media Gateway Control Protocol between the MRS usually; MGCP), specifically adopt the sort of agreement to depend on the protocol type that MRS supports.

2, between UE and the MRS when calling out the code/decode format of medium bag, transmitting-receiving port, bandwidth for transmission speed etc. carry out media negotiation, accomplish the transmission of Media Stream.

Need to prove that Fig. 2 is the diagram of summary, hidden other irrelevant IMS or NGN network topology structure.In actual the realization, AS, MRS and UE are linked in IMS network or the NGN network.

Logical flow chart of the present invention is as shown in Figure 3, and wherein UE B is NGN or IMS user, and AS is the call waiting application server, and UE A and UE C can be NGN or IMS user, also can be other networks (like GSM, CDMA, PSTN etc.) user.Flow process shown in Figure 3 may further comprise the steps:

Step 01, when UE B and UE C conversation, UE A dials UE B.

Step 02, UE B does not support the second tunnel incoming call, returns busy final response, this response arrives AS.

Step 03, the call waiting if UE B has contracted on AS, then execution in step 05; Otherwise execution in step 04.

Step 04, AS plays failure prompt tone (as: phone that you dial is conversed, and please pulls out after a while again) back to UE A and discharges UEA.Flow process finishes.

Step 05, AS plays the Call Waiting prompt tone to UEA, as: please not want on-hook, the phone that you dial is conversed.

Step 06, AS applies for conferencing resource to MRS, the conversation with UE B, UE C joins in the meeting based on this resource.

Step 07, AS plays the second tunnel incoming call prompt tone (as: you have new incoming call, answer please by 1, and refusal is please by 2) to UE B and collects the digits, playing alert tones and the operation that the collects the digits certain hour (as 1 minute) that can circulate.This moment UE B both can with UE C conversation, also can carry out the playback operation that collects the digits simultaneously.

Step 08, if AS is 1 to the content that collects the digits of UE B, then execution in step 12; Otherwise execution in step 09.

Step 09, if AS is 2 to the content that collects the digits of UE B, then execution in step 11; Otherwise execution in step 10.

After step 10, the playback time that collects the digits finished, AS discharged UE A.Discharge audio mixing and playback resource, with UE B and the conversation of UE C bridge joint.Flow process finishes.

Step 11, AS plays the failure prompt tone to UE A, as: the phone that you dial is conversed, and please pulls out after a while again.AS discharges UE A then, and discharges audio mixing resource and playback resource, with UE B and the conversation of UE C bridge joint.Flow process finishes.

Step 12, AS plays to call out to UE C and keeps prompt tone.

Step 13, AS stops to play the Call Waiting prompt tone to UEA.

Step 14, AS is with UE A and UE B bridge joint, and UE A and UE B get into talking state.

Step 15, if not UE A on-hook during the on-hook of UE C, then execution in step 19; Otherwise execution in step 16.

Step 16, if not UE B on-hook during the on-hook of UE C, then execution in step 18; Otherwise execution in step 17.

Step 17, UE A and UE B continue conversation.Flow process finishes.

Step 18, AS discharges UE A, UE C, discharges former calling then.Flow process finishes.

Step 19, AS stops to play calling to UE C and keeps prompt tone.

Step 20, AS is with UE C and UE B bridge joint, and UE C and UE B get into talking state again.Flow process finishes.

In order to guarantee not support the terminal of the second tunnel incoming call can realize Call Waiting, can carry out setting as shown in Figure 4.Among Fig. 4, the correlation module that is comprised among the AS is following:

1, receives judge module, receive the various call events that arrive AS, like incoming call request, user's ring, user's off-hook etc.When returning busy condition, be used for judges and whether have the call waiting authority, carry out subsequent treatment like UE B.

2, playback audio mixing module; Be used to indicate MRS to carry out operations such as playback, playback collect the digits, meeting audio mixing, as UE A is play failure prompt tone or Call Waiting prompt tone, to UE B playback and collect the digits, UE C is play to call out keep prompt tone, UE B and UE C are carried out meeting audio mixing etc.

3, the conversation bridge module is used for two users' conversation is associated, and makes two users get into talking state.Among the present invention, be used for UE A and UE B bridge joint, and the bridge joint of UE B and UE C.

4, call out release module, the calling that is used for after flow process finishes discharges, and discharges like the calling after the flow processs such as failure prompt tone, user's on-hook.

The system that comprises above-mentioned AS comprises:

UE can insert in the existing network of relation (like GSM, CDMA, PSTN, NGN or IMS).Can be the terminal under existing each network, like GSM or CDMA mobile phone, PSTN fixed line, NGN or IMS terminal etc.Wherein UE B is NGN or IMS user, and UE A and UE C can be NGN or IMS user, also can be other network users.

AS places NGN or IMS core net, and is continuous with SS (Softswitch, soft switch) or the S-CSCF (service call conversation controller) under the IMS network under the NGN network, links to each other with MRS simultaneously.Subscription authentication, the playback that can realize call waiting collect the digits, converse bridge joint, call out release, ticket generation etc.Mainly comprise and receive judge module, playback audio mixing module, conversation bridge module, calling release module etc.

MRS links to each other with AS, and the indication through AS realizes playback, playback collects the digits and sound mixing function.In the present invention; MRS is used for user terminal is play relevant prompt tone (keeping prompt tone like Call Waiting prompt tone, calling); Or user terminal play relevant prompt tone and receive the two-stage dialing input of user terminal, or user terminal is added meeting, carry out audio mixing.

Referring to Fig. 5, Fig. 5 does not have the schematic flow sheet of Call Waiting authority for the user of the embodiment of the invention.Among Fig. 5, UE B is NGN or IMS user, but not signatory Call Waiting.Flow process shown in Figure 5 may further comprise the steps:

Step 01, UE A sends the INVITE request to AS, and the request number is UE B, the SDP information of carrying UE A in the said INVITE request.This moment, UE B and UE C conversed.

Step 02, AS sends the INVITE request to UE B, and the request number is UE B, the SDP information of carrying UE A in the said INVITE request.

Step 03, UE B returns 486Busy to AS and finally responds.UE B and UE C converse, and UE B do not support the second tunnel incoming call, so UE B returns busy condition.

Step 04, AS sends the ACK acknowledge message to UE B.

Step 05, AS sends INVITE request, the SDP information of wherein carrying UE A to MRS.AS judges that UE B does not have call waiting, and desire is put the failure prompt tone of busy condition to UEA.

Step 06, MRS returns the final response of 200OK (INVITE) to AS, wherein carries the SDP information of self.

Step 07, AS sends the ACK acknowledge message to MRS.

Step 08, AS sends 183Session Process (conversation procedure) Temporary Response, the SDP information of carrying MRS to UE A.

Step 09, AS sends the INFO notice request to MRS, and MRS is to UE A playing alert tones in request, as: the phone that you dial is conversed, and please pulls out after a while again.

Step 10, MRS returns the final response of 200OK (INFO) to AS.

Step 11, MRS sends the BYE ending request to AS.The MRS playback finishes, and request discharges the playback resource.

Step 12, AS returns the final response of 200OK (BYE) to MRS.

Step 13, AS returns the final response of 487Terminated (end) to UE A.Playback finishes, and AS discharges UE A.

Step 14, UE A sends the ACK acknowledge message to AS.Flow process finishes.

Referring to Fig. 6, Fig. 6 is the schematic flow sheet that the former calling both sides of the embodiment of the invention adds meeting.Among Fig. 6, UE B is NGN or IMS user, the call waiting of having contracted.Flow process shown in Figure 6 may further comprise the steps:

Step 02, AS sends the INVITE request to UE B, and the request number is UE B, carries the SDP information of UE A among the said INVITE.

Step 04, AS sends the ACK acknowledge message to UE B.

Step 05, AS sends INVITE request, the SDP information of carrying UE A to MRS.AS judges that UE B has call waiting, and desire is put the Call Waiting prompt tone to UE A.

Step 07, AS sends the ACK acknowledge message to MRS.

Step 08, AS sends 180Ring Temporary Response, the SDP information of wherein carrying MRS to UE A.

Step 09, AS sends the INFO notice request to MRS, and MRS is to UE A loop play prompt tone (as: please not want on-hook, the phone that you dial is conversed) in request, and be about 1 minute circulation timei.

Step 10, MRS returns the final response of 200OK (INFO) to AS.

Step 11, AS sends REINVITE (inviting again) request to UE B.The AS desire joins UE B in the meeting.

Step 12, UE B returns the final response of 200OK (REINVITE) to AS, wherein carries the SDP information of self.

Step 13, AS sends INVITE request, the SDP information of wherein carrying UE B to MRS.

Step 14, MRS returns the final response of 200 OK (INVITE) to AS, wherein carries the SDP information of self.

Step 15, AS sends the ACK acknowledge message to MRS.

Step 16, AS sends ACK acknowledge message, the SDP information of wherein carrying MRS to UE B.

Step 17, AS sends the INFO notice request to MRS, and MRS is to UE B audio mixing in request.

Step 18, MRS returns the final response of 200OK (INFO) to AS.

Step 19, AS sends the INFO notice request to MRS, and request MRS collects the digits (as: you have new incoming call, answer please by 1, and refusal is please by 2) to UE B loop playback, and be about 1 minute circulation timei.

Step 20, MRS returns the final response of 200OK (INFO) to AS.

Step 21, AS sends the REINVITE request to UE C.The AS desire joins UE C in the meeting.

Step 22, UE C returns the final response of 200OK (REINVITE) to AS, wherein carries the SDP information of self.

Step 23, AS sends INVITE request, the SDP information of wherein carrying UE C to MRS.

Step 24, MRS returns the final response of 200OK (INVITE) to AS, wherein carries the SDP information of self.

Step 25, AS sends the ACK acknowledge message to MRS.

Step 26, AS sends ACK acknowledge message, the SDP information of wherein carrying MRS to UE C.

Step 27, AS sends the INFO notice request to MRS, and MRS is to UE C audio mixing in request.

Step 28, MRS returns the final response of 200OK (INFO) to AS.This moment, UE C and UE B were in talking state, and UE B is in the playback Number Receiving Status simultaneously.

Step 29, MRS sends the INFO notice request to AS, so that the input content of UE B is informed AS.

Step 30, AS returns the final response of 200OK (INFO) to MRS.AS is to the content that collects the digits of UE B: if 1, then map interlinking 7; If 2, then map interlinking 8; If empty or other, then map interlinking 9.

Fig. 7 answers the schematic flow sheet of new calling for the user of the embodiment of the invention.Among Fig. 7, UE B selects to answer new calling, and flow process shown in Figure 7 may further comprise the steps:

Step 01, AS sends the INFO notice request to MRS, with request MRS UE C loop play called out to keep prompt tone (as: just a moment,please, during calling keeps), also can be one section music.UE B input content is 1, promptly selects to answer new calling, and AS plays to call out to UE C and keeps prompt tone.

Step 02, MRS returns the final response of 200OK (INFO) to AS.

Step 03, AS sends the BYE ending request to MRS, discharges playback and the audio mixing link of UE B and MRS with request MRS.AS stops UE B playback and audio mixing.

Step 04, MRS returns the final response of 200OK (BYE) to AS.

Step 05, AS sends the BYE ending request to MRS, discharges the playback link of UE A and MRS with request MRS.AS stops UE A is play the Call Waiting prompt tone.

Step 06, MRS returns the final response of 200OK (BYE) to AS.

Step 07, AS sends the REINVITE request to UE B.The AS desire is to UE A and the conversation of UE B bridge joint.

Step 08, UE B returns the final response of 200OK (REINVITE) to AS, wherein carries the SDP information of self.

Step 09, AS sends UPDATE to UE A and upgrades request, the SDP information of wherein carrying UE B.

Step 10, UE A returns the final response of 200OK (UPDATE) to AS, wherein carries the SDP information of self.

Step 11, AS returns the final response of 200OK (INVITE) to UE A.

Step 12, UE A sends the ACK acknowledge message to AS.

Step 13, AS sends ACK acknowledge message, the SDP information of wherein carrying UE A to UE B.UEA and UE B media negotiation are accomplished, and get into talking state.

Step 14, UE A sends the BYE ending request to AS.UE A and UE B end of conversation, UE A on-hook.

Step 15, AS returns the final response of 200OK (BYE) to UE A.

Step 16, AS sends the BYTE ending request to MRS, discharges the playback link of UE C and MRS with request MRS.UE A on-hook, so AS desires to stop UE C play to call out is kept prompt tone, and UE B is conversed with UE C bridge joint.

Step 17, MRS returns the final response of 200OK (BYE) to AS.

Step 18, AS sends the REINVITE request to UE B.

Step 19, UE B returns the final response of 200OK (REINVITE) to AS, wherein carries the SDP information of self.

Step 20, AS sends REINVITE request, the SDP information of wherein carrying UE B to UE C.

Step 21, UE C returns the final response of 200OK (REINVITE) to AS, wherein carries the SDP information of self.

Step 22, AS sends ACK to UE C and confirms request.

Step 23, AS sends ACK to UE B and confirms request, the SDP information of wherein carrying UE C.UE B and UE C media negotiation are accomplished, and get into talking state again.Flow process finishes.

Referring to Fig. 8, Fig. 8 refuses the new schematic flow sheet of calling out for the user of the embodiment of the invention.Among Fig. 8, UE B selects the new calling of refusal, and flow process shown in Figure 8 may further comprise the steps:

Step 01, AS sends the INFO notice request to MRS, with request MRS UE A is play the failure prompt tone, as: the phone that you dial is conversed, and please pulls out after a while again.UE B input content is 2, promptly selects the new calling of refusal, and AS plays the failure prompt tone to UE A.

Step 02, MRS returns the final response of 200OK (INFO) to AS.

Step 03, AS sends the BYE ending request to MRS, discharges the playback link of UE A and MRS with request MRS.Playback finishes AS to UE A, discharges the playback resource.

Step 04, MRS returns the final response of 200OK (BYE) to AS.

Step 05, AS returns 487Terminated to UE A and finally responds.AS finishes the back to UE A playback and discharges UE A.

Step 06, UE A sends the ACK acknowledge message to AS.

Step 07, AS sends the BYE ending request to MRS, discharges playback and the audio mixing link of UE B and MRS with request MRS.AS collects the digits to UE B and finishes, and discharges playback and audio mixing resource.

Step 08, MRS returns the final response of 200OK (BYE) to AS.

Step 09, AS sends the BYE ending request to MRS, discharges the audio mixing link of UE C and MRS with request MRS.AS discharges the audio mixing resource.

Step 10, MRS returns the final response of 200OK (BYE) to AS.

Step 11, AS sends the REINVITE request to UE B.The AS desire is with UE B and the conversation of UE C bridge joint.

Step 13, AS sends REINVITE request, the SDP information of wherein carrying UE B to UE C.

Step 14, UE C returns the final response of 200OK (REINVITE) to AS, wherein carries the SDP information of self.

Step 15, AS sends the ACK acknowledge message to UE C.

Step 16, AS sends ACK acknowledge message, the SDP information of wherein carrying UE C to UE B.UE B and UE C media negotiation are accomplished, and get into talking state again.Flow process finishes.

Referring to Fig. 9, Fig. 9 is that the user of the embodiment of the invention is to the unresponsive schematic flow sheet of new calling.Among Fig. 9, UE B does not handle new calling, and promptly to new calling no response, flow process shown in Figure 9 may further comprise the steps:

Step 01, AS sends the BYE ending request to MRS, discharges the playback link of UE A and MRS with request MRS.AS to UE B loop playback collect the digits the time (as about 1 minute) arrive, UE B input content be empty, or the value outside 1 and 2, AS is to UE A release playback resource.

Step 02, MRS returns the final response of 200OK (BYE) to AS.

Step 03, AS returns the final response of 408Time Out (overtime) to UE A.AS finishes the back to UE A playback and discharges UEA.

Step 04, UE A sends the ACK acknowledge message to AS.

Step 05, AS sends the BYE ending request to MRS, discharges playback and the audio mixing link of UE B and MRS with request MRS.AS arrived the UE B loop playback time of collecting the digits, and discharged playback and audio mixing resource.

Step 06, MRS returns the final response of 200OK (BYE) to AS.

Step 07, AS sends the BYE ending request to MRS, discharges the audio mixing link of UE C and MRS with request MRS.AS discharges the audio mixing resource.

Step 08, MRS returns the final response of 200OK (BYE) to AS.

Step 09, AS sends the REINVITE request to UE B.The AS desire is with UE B and the conversation of UE C bridge joint.

Step 10, UE B returns the final response of 200OK (REINVITE) to AS, wherein carries the SDP information of self.

Step 11, AS sends REINVITE request, the SDP information of wherein carrying UE B to UE C.

Step 12, UE C returns the final response of 200OK (REINVITE) to AS, wherein carries the SDP information of self.

Step 13, AS sends the ACK acknowledge message to UE C.

Step 14, AS sends ACK acknowledge message, the SDP information of wherein carrying UE C to UE B.UE B and UE C media negotiation are accomplished, and get into talking state again.Flow process finishes.

Visible in conjunction with above each figure, based on aforementioned AS and place system thereof, the operation thinking that the present invention is directed to the terminal realization Call Waiting of not supporting the second tunnel incoming call can be represented flow process shown in figure 10, and this flow process may further comprise the steps:

Step 1001: when first terminal and second terminal call, the 3rd terminal dials first terminal of not supporting the second tunnel incoming call.

Step 1002: the AS of support terminal communication controls first terminal and the 3rd communication between terminals.

Visible by above-mentioned flow process, first terminal and second terminal terminal for conversing, the 3rd terminal are then for initiating new terminal of calling out.

Visible in sum; No matter be method, device or system; The present invention is directed to the terminal of not supporting the second tunnel incoming call and realize the technology of Call Waiting, have following advantage and innovation: (1) does not need the terminal to support the second tunnel incoming call, and the function of this second tunnel incoming call can be realized by AS.AS can point out the user to select to answer or refuse and call out when new calling was arranged, and having overcome the user can't the new problem of calling out of perception.(2) do not need the terminal support call to keep function, realize by AS.Traditional call waiting function needs support call maintenance button on the terminal, is used for former calling party is kept.If the user selects to answer new calling, then automatically former calling party is realized calling out maintenance among the present invention by AS.(3) in meeting, realize new user who calls out and former calling party conversation, carry out playback simultaneously and collect the digits, the time that takies conferencing resource few (being at most about 1 minute).(4) can realize the new user who calls out and conversation seamless switching between Conference Calling and ordinary call of former calling party, and former calling party's perception is less than the process of switching.

Need to prove; The present invention can be used in terminal under NGN and the IMS; Like SIP hard terminal (the SIP low side phone that the high-end phone of SIP of video capability is arranged and do not have the video ability), SIP software terminal (pc client), POTS (Plain Old Telephone Service; Common old-fashioned telephone service) user etc., the terminal under GSM, CDMA, the PSTN also can be linked under NGN and the IMS through grappling and realize Call Waiting to use the present invention in addition.

The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.

Claims

1. the method for Call Waiting is realized at a terminal of not supporting the second tunnel incoming call, it is characterized in that this method comprises:

The application server AS of support terminal communication is controlled first terminal and the 3rd communication between terminals.

2. method according to claim 1; It is characterized in that when controlling first terminal and the 3rd communication between terminals, said AS receives the busy response at first terminal; Afterwards to the 3rd terminal plays Call Waiting prompt tone, also to the prompt tone of first terminal plays, the second tunnel incoming call and collect the digits.

3. method according to claim 1 is characterized in that, when controlling first terminal and the 3rd communication between terminals, said AS also joins first terminal and second terminal in the meeting.

4. method according to claim 3 is characterized in that, said AS with the method that first terminal and second terminal join in the meeting is:

AS is to Media Resource Server MRS application conferencing resource, and the conversation with first terminal and second terminal joins in the meeting based on this resource.

5. according to each described method of claim 1 to 4, it is characterized in that, when controlling first terminal and the 3rd communication between terminals,

6. method according to claim 5 is characterized in that, this method also comprises: AS to the 3rd terminal plays failure prompt tone after, discharge the calling at the 3rd terminal; And,

7. method according to claim 1 is characterized in that, this method also comprises: first terminal is signatory call waiting on AS in advance.

8. a system that does not support the terminal realization Call Waiting of the second tunnel incoming call is characterized in that this system comprises terminal, AS; Said terminal comprises first terminal, second terminal, the 3rd terminal; Wherein,

9. system according to claim 8; It is characterized in that when controlling first terminal and the 3rd communication between terminals, said AS is used to receive the busy response at first terminal; Afterwards to the 3rd terminal plays Call Waiting prompt tone, also to the prompt tone of first terminal plays, the second tunnel incoming call and collect the digits.

10. system according to claim 8 is characterized in that, when controlling first terminal and the 3rd communication between terminals, said AS also is used for first terminal and second terminal are joined meeting.

11. system according to claim 10; It is characterized in that this system also comprises MRS, when said AS joins first terminal and second terminal in the meeting; Be used for to MRS application conferencing resource, and the conversation with first terminal and second terminal joins in the meeting based on this resource.

12. to 11 each described systems, it is characterized in that according to Claim 8, when controlling first terminal and the 3rd communication between terminals,

13. system according to claim 12 is characterized in that, AS to the 3rd terminal plays failure prompt tone after, also be used to discharge the calling at the 3rd terminal; And,

14. system according to claim 8 is characterized in that, said first terminal also is used for signatory call waiting on AS in advance.

15. a device of not supporting the terminal realization Call Waiting of the second tunnel incoming call is characterized in that this device comprises reception judge module, conversation bridge module; Wherein,

16. device according to claim 15 is characterized in that,

17. device according to claim 15; It is characterized in that; This device also comprises playback audio mixing module, when being used between first terminal and the 3rd terminal, communicating by letter, receives the busy response at first terminal; Afterwards to the 3rd terminal plays Call Waiting prompt tone, also to the prompt tone of first terminal plays, the second tunnel incoming call and collect the digits.

18. device according to claim 15 is characterized in that, when controlling first terminal and the 3rd communication between terminals, said reception judge module also is used for based on the MRS that links to each other first terminal and second terminal being joined in the meeting.

19. device according to claim 18 is characterized in that, when said reception judge module joins first terminal and second terminal in the meeting, is used for:

20., it is characterized in that this device also comprises the calling release module according to each described device of claim 17 to 19; When controlling first terminal and the 3rd communication between terminals,

21. device according to claim 20 is characterized in that,

22. device according to claim 15 is characterized in that, said first terminal also is used for signatory call waiting on AS in advance.

23. device according to claim 15 is characterized in that, this device is arranged among the AS.