CN102196108A - Method for realizing color ring back tone playing of Internet protocol (IP) telephone based on media gateway control protocol - Google Patents
Method for realizing color ring back tone playing of Internet protocol (IP) telephone based on media gateway control protocol Download PDFInfo
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- CN102196108A CN102196108A CN2011101335935A CN201110133593A CN102196108A CN 102196108 A CN102196108 A CN 102196108A CN 2011101335935 A CN2011101335935 A CN 2011101335935A CN 201110133593 A CN201110133593 A CN 201110133593A CN 102196108 A CN102196108 A CN 102196108A
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Abstract
The invention relates to a method for realizing the color ring back tone playing of an Internet protocol (IP) telephone based on a media gateway control protocol. A color ring back tone voice file of a called user is stored on a called user side, so that a called media gateway creates called user resource information comprising the color ring back tone voice file information of the called user, and then transmits the called user resource information to a media gateway controller to play a color ring back tone to a calling user. By the method for realizing the color ring back tone playing of the IP telephone based on the media gateway control protocol, the color ring back tone using cost of the user is greatly reduced, convenience to the use of the color ring back tone is improved, and the application range of the color ring back tone is widened; and the method provided by the invention is simple and convenient to apply in the relatively wider application range.
Description
Technical field
The present invention relates to communication technique field, particularly in the media gateway terminal system based on the means of communication field of MGCP, specifically be meant a kind of method that realizes the IP phone polyphonic ringtone playing based on MGCP.
Background technology
VoIP (Voice over Internet Protocol) is a kind of based on IP phone, transmits at the enterprising lang sound of the network that has used Internet protocol, and releases the technology of corresponding value-added service.The voip network phone is a kind of more advanced, more reliable emerging communication technology, has the development trend that progressively replaces conventional communication techniques.The networking telephone is just merging the Internet and conventional communication techniques is come into daily life, leads new life style.VoIP is exactly with simulated sound signal (Voice) digitlization in brief, the technology of transmitting in real time on IP data network (IP Network) with the pattern of data packet (Data Packet).The advantage of VoIP maximum is to adopt the environment of Internet and global ip interconnection widely, and, better service more than traditional business are provided.VoIP can provide cheap business such as transmission voice, fax, video and data on IP network, store the storage forwarding of forwarding and various information etc. as unified message, virtual telephony, virtual speech/fax mailbox, directory enquiry service, Internet call center, Internet call manager, video conference, ecommerce, fax.
MG (Media Gateway, media gateway) is positioned at the edge access layer in the middle of the soft-exchange construction, and the analog subscriber line interface is provided, and is used for directly ordinary telephone subscriber being linked into soft exchanging network.MG is positioned over the sub-district or the business data net inserts side, MG or IAD (Integrated Access Device, integrated access device) by MGCP/H.248 agreement (Media Gateway Control Protocol, MGCP) carries out alternately with soft switch, realize the calling control of soft switch to the user, MG realizes the encoding and decoding (simulated voice is broken into the IP bag) of voice simultaneously, the packing compression of Media Stream, silence detection, basic playback medium gateway function such as collect the digits, realize the Media Stream intercommunication between POTS (Plain Old Telephone Service, traditional plain old telephone service) user and other user.Many as a regional centralized user, when the twisted-pair feeder resource was arranged again, the application of MG had high performance price ratio.Adopt MG as access way.The capacity that is applicable to is bigger, and the occasion that the user comparatively concentrates is as the speech access of intensive sub-district and enterprise.
H.248 agreement is the MGCP that was proposed by ITU-T the 16th working group in 2000, and it is to improve in early days the MGCP agreement basis to form.H.248/MeGaCo agreement is the gateway control protocol that is used to connect MGC (Media Gateway Controller) and MG (media gateway), being applied between media gateway and the Softswitch and soft switch and H.248/MeGaCo between the terminal, is the important protocol that soft switch should be supported.H.248/MeGaCo agreement is the product that gateway separates notion.The core that gateway separates is that business is separated with control, and control separates with carrying.But make business, control and carrying independent development like this, operator also can provide colourful business when making full use of new technology, promotes network value by the business of constantly bringing forth new ideas.H.248/Megaco be on the basis of MGCP agreement (RFC2705 definition), develop a kind of agreement that forms in conjunction with other MGCP characteristics, it provides foundation, modification and the releasing mechanism of control medium, simultaneously also portability some with the road call signaling, support the calling of legacy network terminal.This agreement is being brought into play important effect making up the open and net among the NGN (New Generation Network, new generation network) that merges more.
After the called subscriber handles Ring Back Tone service, dial calledly, and called when not having off-hook, will play the voice resource of called setting to caller, i.e. CRBT when caller.
But in the implementation method of present media ring function, CRBT generally is stored in the special media server in the network, manage by operator, if replacing CRBT, must be by operator, and can only in the limited CRBT of number, select, and common every replacing once all will be charged, this just makes the user reduce greatly for the convenience that CRBT uses, and the range of application of CRBT also has been subjected to restriction.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, provide a kind of user of being convenient to set up CRBT on their own, improve the convenience that CRBT uses, and effective expense of using CRBT that reduces, thereby enlarge the range of application of CRBT, and application mode is easy, and range of application realizes the method for IP phone polyphonic ringtone playing comparatively widely based on MGCP.
In IP telephony network, the media gateway that main dialing user and called party terminal pass through respectively separately inserts IP network, and connects Media Gateway Controller by IP network.In order to realize above-mentioned purpose, the method based on MGCP realization IP phone polyphonic ringtone playing of the present invention may further comprise the steps:
(1) calling subscriber's off-hook and dial the called subscriber;
(2) after described Media Gateway Controller receives called signal, instruct called media gateway to called subscriber's ring;
(3) after called media gateway receives ringing instruction, create the called subscriber's resource information that comprises dialed user color bell voice document information, then this called subscriber's resource information is sent to Media Gateway Controller;
(4) after Media Gateway Controller received described called subscriber's resource information, instruction caller media gateway was revised calling subscriber's far-end resource information according to this called subscriber's resource information;
(5) Media Gateway Controller instructs called media gateway advise called subscriber to calling subscriber's coloring ring back tone playing voice document.
Wherein, described called party terminal is provided with the CRBT memory cell, and described dialed user color bell voice document is stored in the described CRBT memory cell.
Realize based on MGCP that at this described step (2) specifically may further comprise the steps in method of IP phone polyphonic ringtone playing:
(21) after Media Gateway Controller receives called signal, instruct called media gateway to store calling subscriber's information of session description protocol;
(22) behind called media gateway storage calling subscriber's the information of session description protocol, respond Media Gateway Controller, report called subscriber's information of session description protocol simultaneously;
(23) Media Gateway Controller instructs called media gateway to called subscriber's ring;
(24) called media gateway response Media Gateway Controller.
Realize based on MGCP in the method for IP phone polyphonic ringtone playing that at this information of session description protocol of described called media gateway storage calling subscriber specifically is meant:
(22a) called media gateway is created a new statement, and adds the RTP end in this statement;
(22b) called media gateway is " transmitting-receiving " with this RTP end pattern;
(22c) called media gateway is in described RTP end memory storage calling subscriber's information of session description protocol and voice compression algorithm.
Realize based on MGCP that at this described step (3) specifically may further comprise the steps in method of IP phone polyphonic ringtone playing:
(31) Media Gateway Controller instructs called media gateway to revise called subscriber's Resource Properties;
(32) called media gateway is created the called subscriber's resource information that comprises dialed user color bell voice document information;
(33) called media gateway reports the new information of session description protocol that comprises this called subscriber's resource information to Media Gateway Controller.
Realize based on MGCP in the method for IP phone polyphonic ringtone playing that at this described Media Gateway Controller instruction caller media gateway is revised calling subscriber's far-end resource information according to this called subscriber's resource information, specifically is meant:
(4a) Media Gateway Controller instruction caller media gateway is revised calling subscriber's far-end information of session description protocol;
The pattern of this far-end information of session description protocol of (4b) caller media gateway is set to " only receiving ";
(4c) Media Gateway Controller control calling subscriber is communicated with the called subscriber.
Realize based on MGCP that at this described step (5) specifically may further comprise the steps in method of IP phone polyphonic ringtone playing:
(51) Media Gateway Controller instructs called media gateway to calling subscriber's playback;
(52) called media gateway advise called subscriber is to calling subscriber's coloring ring back tone playing voice document.
Adopted the method based on MGCP realization IP phone polyphonic ringtone playing of this invention, because its called subscriber's CRBT voice document is stored in called subscriber's side, therefore, its called media gateway is created the called subscriber's resource information that comprises dialed user color bell voice document information, then this called subscriber's resource information is sent to Media Gateway Controller, to realize to calling subscriber's coloring ring back tone playing, thereby, greatly reduce the user and use the cost of CRBT, improved the convenience that CRBT uses, enlarged the range of application of CRBT, and the method application mode based on MGCP realization IP phone polyphonic ringtone playing of the present invention is easy, and range of application is comparatively extensive.
Description of drawings
Fig. 1 is the flow chart of steps that realizes the method for IP phone polyphonic ringtone playing based on MGCP of the present invention.
Fig. 2 is the mutual schematic diagram of method signaling message in actual applications of realizing the IP phone polyphonic ringtone playing based on MGCP of the present invention.
Embodiment
In order more to be expressly understood technology contents of the present invention, describe in detail especially exemplified by following examples.
See also shown in Figure 1ly, be the flow chart of steps that realizes the method for IP phone polyphonic ringtone playing based on MGCP of the present invention.
In IP telephony network, the media gateway that main dialing user and called party terminal pass through respectively separately inserts IP network, and connects Media Gateway Controller by IP network.In one embodiment, described method may further comprise the steps:
(1) calling subscriber's off-hook and dial the called subscriber;
(2) after described Media Gateway Controller receives called signal, instruct called media gateway to called subscriber's ring;
(3) after called media gateway receives ringing instruction, create the called subscriber's resource information that comprises dialed user color bell voice document information, then this called subscriber's resource information is sent to Media Gateway Controller;
(4) after Media Gateway Controller received described called subscriber's resource information, instruction caller media gateway was revised calling subscriber's far-end resource information according to this called subscriber's resource information;
(5) Media Gateway Controller instructs called media gateway advise called subscriber to calling subscriber's coloring ring back tone playing voice document,
Wherein, described called party terminal is provided with the CRBT memory cell, and described dialed user color bell voice document is stored in the described CRBT memory cell.
In a kind of more preferably execution mode, the step of described method (2) specifically may further comprise the steps:
(21) after Media Gateway Controller receives called signal, instruct called media gateway to store calling subscriber's information of session description protocol;
(22) behind called media gateway storage calling subscriber's the information of session description protocol, respond Media Gateway Controller, report called subscriber's information of session description protocol simultaneously;
(23) Media Gateway Controller instructs called media gateway to called subscriber's ring;
(24) called media gateway response Media Gateway Controller.
Described step (3) specifically may further comprise the steps:
(31) Media Gateway Controller instructs called media gateway to revise called subscriber's Resource Properties;
(32) called media gateway is created the called subscriber's resource information that comprises dialed user color bell voice document information;
(33) called media gateway reports the new information of session description protocol that comprises this called subscriber's resource information to Media Gateway Controller.
Described Media Gateway Controller instruction caller media gateway is revised calling subscriber's far-end resource information according to this called subscriber's resource information, specifically is meant:
(4a) Media Gateway Controller instruction caller media gateway is revised calling subscriber's far-end information of session description protocol;
The pattern of this far-end information of session description protocol of (4b) caller media gateway is set to " only receiving ";
(4c) Media Gateway Controller control calling subscriber is communicated with the called subscriber.
And described step (5) specifically may further comprise the steps:
(51) Media Gateway Controller instructs called media gateway to calling subscriber's playback;
(52) called media gateway advise called subscriber is to calling subscriber's coloring ring back tone playing voice document.
In a kind of preferred execution mode, described called media gateway storage calling subscriber's information of session description protocol specifically is meant:
(22a) called media gateway is created a new statement, and adds the RTP end in this statement;
(22b) called media gateway is " transmitting-receiving " with this RTP end pattern;
(22c) called media gateway is in described RTP end memory storage calling subscriber's information of session description protocol and voice compression algorithm.
In an application of the invention, method of the present invention may further comprise the steps:
(1) calling subscriber's off-hook and dial the called subscriber;
(2) Media Gateway Controller instruction gateway B is to called subscriber's ring and create the related media resource;
(3) Media Gateway Controller instruction gateway A is revised calling subscriber's media resource;
(4) Media Gateway Controller instruction gateway B notice called party to calling party playback.
Wherein, described MGCP is MGCP H.248/MeGaCo, and described CRBT is stored in user side.
Wherein, described step (2) specifically may further comprise the steps:
(21) Media Gateway Controller instruct media gateway/H248 terminal B creates a new context (statement), and in context, add RTP termination (RTP end), it is SendReceive (transmitting-receiving) that RTP Mode (RTP pattern) is set, calling subscriber's SDP information and voice compression algorithm;
(22) media gateway/H248 terminal B responds to Media Gateway Controller after finishing above-mentioned functions, reports called subscriber's SDP information simultaneously;
(23) Media Gateway Controller instruct media gateway/H248 terminal B is to called terminal ringing;
(24) media gateway/H248 terminal B responds Media Gateway Controller;
(25) Media Gateway Controller analyzes the called subscriber and has customized Ring Back Tone service, and instruct media gateway/H248 terminal B revises called subscriber's Resource Properties;
(26) media gateway/H248 terminal B responds to Media Gateway Controller after finishing above-mentioned functions, reports called subscriber's new SDP information simultaneously.
In practical application of the present invention, the signaling message interaction flow of this method as shown in Figure 2, may further comprise the steps substantially:
(1) calling subscriber's off-hook after media gateway/H248 terminal A detects off-hook event, reports notify (notice) message to tell soft switch MGC (soft exchanging network gateway controller) calling subscriber's off-hook.
(2) MGC response reply (answer) message.
(3) MGC issues modify (modification) message, allows media gateway/H248 terminal A detect the subscriber dialing incident, and plays dialing tone, issues dialing rule.
(4) media gateway/H248 terminal A response reply message.
(5) calling subscriber dialing is finished, and media gateway/H248 terminal A end that collects the digits reports the number of collection.
(6) MGC response reply message.
(7) MGC issues ADD (interpolation) message, allows media gateway/H248 terminal A distribute physics terminal resource and rtp (RTP) temporary resource.
(8) media gateway/H248 terminal A Resources allocation finishes, and reports the reply response message.
(9) MGC instruct media gateway/H248 terminal B creates a new context, and adds RTP termination in context, and it is SendReceive that RTP Mode is set, calling subscriber's SDP information and voice compression algorithm;
(10) media gateway/H248 terminal B responds to Media Gateway Controller after finishing above-mentioned functions, reports called subscriber's SDP information simultaneously.
(11) MGC instruct media gateway/H248 terminal B is to called terminal ringing.
(12) media gateway/H248 terminal B responds MGC.
(13) MGC analyzes the called subscriber and has customized the local color bell business, and instruct media gateway/H248 terminal B revises called subscriber's Resource Properties.
(14) media gateway/H248 terminal B responds to MGC after finishing above-mentioned functions, reports called subscriber's new SDP information simultaneously.
(15) MGC instruct media gateway/H248 terminal A revises calling subscriber's far-end SDP information, and transceiver mode is ReceiveOnly (only receiving), makes it to communicate with far-end.
(16) media gateway/H248 terminal A responds MGC.
(17) MGC issues modify message to media gateway/H248 terminal B, allows media gateway/H248 terminal B to calling subscriber's playback.
(18) media gateway/H248 terminal B responds MGC, and plays the voice document that the user sets.
At this moment, the called subscriber is to calling subscriber's coloring ring back tone playing.Because CRBT is stored in user side, can effectively reduce user's rate, the user is free to, the free CRBT that is provided with.
Adopted the method based on MGCP realization IP phone polyphonic ringtone playing of this invention, because its called subscriber's CRBT voice document is stored in called subscriber's side, therefore, its called media gateway is created the called subscriber's resource information that comprises dialed user color bell voice document information, then this called subscriber's resource information is sent to Media Gateway Controller, to realize to calling subscriber's coloring ring back tone playing, thereby, greatly reduce the user and use the cost of CRBT, improved the convenience that CRBT uses, enlarged the range of application of CRBT, and the method application mode based on MGCP realization IP phone polyphonic ringtone playing of the present invention is easy, and range of application is comparatively extensive.
In this specification, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (7)
1. method that realizes the IP phone polyphonic ringtone playing based on MGCP, the media gateway that main dialing user and called party terminal pass through respectively separately inserts IP network, and, it is characterized in that described method may further comprise the steps by IP network connection Media Gateway Controller:
(1) calling subscriber's off-hook and dial the called subscriber;
(2) after described Media Gateway Controller receives called signal, instruct called media gateway to called subscriber's ring;
(3) after called media gateway receives ringing instruction, create the called subscriber's resource information that comprises dialed user color bell voice document information, then this called subscriber's resource information is sent to Media Gateway Controller;
(4) after Media Gateway Controller received described called subscriber's resource information, instruction caller media gateway was revised calling subscriber's far-end resource information according to this called subscriber's resource information;
(5) Media Gateway Controller instructs called media gateway advise called subscriber to calling subscriber's coloring ring back tone playing voice document.
2. the method that realizes the IP phone polyphonic ringtone playing based on MGCP according to claim 1, it is characterized in that, described called party terminal is provided with the CRBT memory cell, and described dialed user color bell voice document is stored in the described CRBT memory cell.
3. the method based on MGCP realization IP phone polyphonic ringtone playing according to claim 2 is characterized in that described step (2) specifically may further comprise the steps:
(21) after Media Gateway Controller receives called signal, instruct called media gateway to store calling subscriber's information of session description protocol;
(22) behind called media gateway storage calling subscriber's the information of session description protocol, respond Media Gateway Controller, report called subscriber's information of session description protocol simultaneously;
(23) Media Gateway Controller instructs called media gateway to called subscriber's ring;
(24) called media gateway response Media Gateway Controller.
4. the method based on MGCP realization IP phone polyphonic ringtone playing according to claim 3 is characterized in that, described called media gateway storage calling subscriber's information of session description protocol specifically is meant:
(22a) called media gateway is created a new statement, and adds the RTP end in this statement;
(22b) called media gateway is " transmitting-receiving " with this RTP end pattern;
(22c) called media gateway is in described RTP end memory storage calling subscriber's information of session description protocol and voice compression algorithm.
5. the method based on MGCP realization IP phone polyphonic ringtone playing according to claim 3 is characterized in that described step (3) specifically may further comprise the steps:
(31) Media Gateway Controller instructs called media gateway to revise called subscriber's Resource Properties;
(32) called media gateway is created the called subscriber's resource information that comprises dialed user color bell voice document information;
(33) called media gateway reports the new information of session description protocol that comprises this called subscriber's resource information to Media Gateway Controller.
6. the method that realizes the IP phone polyphonic ringtone playing based on MGCP according to claim 5, it is characterized in that, described Media Gateway Controller instruction caller media gateway is revised calling subscriber's far-end resource information according to this called subscriber's resource information, specifically is meant:
(4a) Media Gateway Controller instruction caller media gateway is revised calling subscriber's far-end information of session description protocol;
The pattern of this far-end information of session description protocol of (4b) caller media gateway is set to " only receiving ";
(4c) Media Gateway Controller control calling subscriber is communicated with the called subscriber.
7. the method based on MGCP realization IP phone polyphonic ringtone playing according to claim 6 is characterized in that described step (5) specifically may further comprise the steps:
(51) Media Gateway Controller instructs called media gateway to calling subscriber's playback;
(52) called media gateway advise called subscriber is to calling subscriber's coloring ring back tone playing voice document.
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| CN2011101335935A CN102196108A (en) | 2011-05-23 | 2011-05-23 | Method for realizing color ring back tone playing of Internet protocol (IP) telephone based on media gateway control protocol |
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| CN2011101335935A CN102196108A (en) | 2011-05-23 | 2011-05-23 | Method for realizing color ring back tone playing of Internet protocol (IP) telephone based on media gateway control protocol |
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Application publication date: 20110921 |