CN1909577A - System and method for realizing fixed network one-code-through color ring service by using soft exchanging technology - Google Patents
System and method for realizing fixed network one-code-through color ring service by using soft exchanging technology Download PDFInfo
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Abstract
The invention relates to a system for realizing first color bell service with soft exchange technique, and relative method, wherein said system at least comprises: application server AS, media server MRS, and web server which are connected by local network to form service platform as application layer; it uses soft exchanger SS as control layer, and uses the IP grouped network with confirmed service quality QoS as carrier layer, and uses the soft exchange network formed by signal gateway SG of local network PSTN and relay gateway TG as access layer, and relative PSTN; the soft exchange network is one increment service platform independent from local network PSTN, and spanning local network, to connect the PSTN via SG and TG, to realize the first color bell service via special number section. The invention has simple structure and lower cost.
Description
Technical field
The present invention relates to a kind of system and method that utilizes Softswitch technology to realize fixed network one number service Ring Back Tone service, belong to the flexible exchanging network technical field.
Background technology
One number service (UPT, Universal Personal Telecommunication) claims universal personal Telecommunication again, it is a kind of novel mobile communication business, the user only need use a unique PTN, can insert any one network that comprises in fixed network, Personal Handyphone System net, GSM net or the CDMA net, and can cross over a plurality of networks and initiate and receipt of call, call out the influence that is not subjected to spatial geographical locations.
At present, the implementation of the one number service Ring Back Tone service on the fixed network makes up with traditional intelligence network service exchange point SSP (Service Switch Point)-service control point (SCP) (Service Control Point), and there is following shortcoming in traditional intelligent network business implementation:
(1) SSP's is limited in one's ability, if open fixed network one number service Ring Back Tone service in Guangdong the whole province, needs burst to set up a plurality of intelligent service platforms, and the network element device that relates to is many, and scrap build is wide, realizes complexity, and investment is big.
(2) networking of realization media ring function is not easy.If will realize media ring function the time, SSP must with the off deck gateway intercommunication of outside, yet off deck gateway not necessarily is installed in local network, so networking complexity, and need take the circuit of SSP to off deck gateway is relatively wasted resource.
(3) stride local network and bind when answering number, need the local SSP of process, take long relaying again, waste certain toll trunk resource to toll switch.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of system and method that utilizes Softswitch technology to realize fixed network one number service Ring Back Tone service, this system utilizes that the soft switch disposal ability is strong, the characteristics of wide coverage, make up a flexible exchanging network of striding local network relatively independent with a Ring Back Tone service application platform of mainly forming with the traditional PSTN switching network by application server and media server, Tandem Gateway is crossed by two Netcoms and SGW interconnects, and realize the one number service Ring Back Tone service of fixed network special number section; This system configuration is simple, establishment is easy, convenient, the reliable operation of implementation method, and the IN service that can provide is used very abundant, is a new value-added service platform of telecommunication network operators.
In order to achieve the above object, the invention provides a kind of system that utilizes Softswitch technology to realize fixed network one number service Ring Back Tone service, comprise flexible exchanging network and public switched telephone network PSTN; It is characterized in that: the framework of described flexible exchanging network is: by interconnective by local area network (LAN), at least comprise application server AS, the business platform that media server MRS and WEB server are formed is as application layer, with Softswitch SS as key-course, to have IP Packet Based Network that service quality QoS guarantees as bearing bed, set up as Access Layer and form to be arranged on SGW SG among each public telephone local network PSTN and Tandem Gateway TG again, this flexible exchanging network is as a value-added service platform of striding local network relatively independent with local network PSTN, interconnect by Tandem Gateway and SGW and each local network PSTN, realize the one number service Ring Back Tone service of special number section.
Described fixed network one number service telephone number adopts the special number section: do not take the actual physical circuit, have only the virtual-number section of storage in application server; This one number service telephone number is provided by the local network number resource.
Application server AS in the application layer of described flexible exchanging network is the core apparatus of this value-added service platform, be responsible for providing the execution environment of one number service Ring Back Tone service logic and the generation and the management function of service logic, provide the application interface API (APplication Interface) of various openings, as the development platform of third party's business; Also be provided with the database of one number service Ring Back Tone service, be used to realize by of the translation of one number service number to actual binding number, and storage and managing customized ring back tone; This application server connects one or more Softswitch SS by session initiation protocol SIP;
Described media server MRS, it is Media Resource Server, be responsible for providing speech business and value-added service needed broadcast, mixing, format conversion and the speech recognition of all kinds of audio frequency and/or vision signal, the processing capacity of phonetic synthesis of including but not limited to, store all CRBT files and warning tone file, in many ways the required multiple spot processing capacity of multi-media conference call control, i.e. meeting bridge function are provided; MRS links to each other by MGCP with AS, so that receive the control signaling of application server, coloring ring back tone playing sound;
Described Web server is the one number service CRBT portal website of operator, user, telecommunications attendant and CRBT content supplier are all by this server of internet access, by inner ethernet access AS, the user realizes the management function of the data of one number service number by this again: comprise the foundation and the modification of answering number, ring mode and CRBT sound of binding at least; Telecommunications attendant and CRBT content supplier then carry out the edit operation of additions and deletions, modification by this to the CRBT clauses and subclauses of resources bank among the MRS.
Soft switch SS in the key-course of described flexible exchanging network is the control core of this network, calls out control and billing function for the business with real-time requirement provides; The application layer in this flexible exchanging network and the network element device of key-course, promptly application server AS, media server MRS, WEB server and Softswitch all are arranged on the key city usually.
SGW SG in the Access Layer of described flexible exchanging network is the functional entity that is connected across between No.7 nation-wide Network and the soft exchanging network, be responsible for to signalling system No.7 message SS7 transfer, translation or finalization process, link to each other with soft switch SS by signaling transportation protocol SIGTRAN and to transmit signaling;
Described Tandem Gateway TG is the functional entity that is connected across between PSTN net and the soft exchanging network, be responsible for termination time division multiplexing tdm repeat circuit, and, be connected and transmission information with soft switch SS by the Packet Based Network host-host protocol with the form of media stream transition composition networking requirement;
Described SGW and Tandem Gateway are independent the settings, and perhaps both close and are made as one, depend on the needs of using with service.
Described flexible exchanging network is one or more by the local network PSTN that SG, TG connect, simultaneously a plurality of flexible exchanging networks are realized intercommunication, soft exchanging network also connects mobile network and/or Personal Handyphone System net by the gateway exchange GW of each local network, with the broaden business networking, the user that feasible business provides scope to comprise fixed network, mobile network and Personal Handyphone System net forms a superposing type value-added service network on existing PSTN.
In order to achieve the above object, the present invention also provides a kind of method of utilizing Softswitch technology to realize fixed network one number service Ring Back Tone service, it is characterized in that: comprise the following steps:
(1) calls out the one number service number, be routed to the number of answering of this one number service number bundling through flexible exchanging network: when calling one number service number, each local network all with this Call Forwarding to soft switch, soft switch is delivered to application server with this calling again and is handled, after obtaining the number that receives calls of this one number service number bundling, give call forward called accordingly;
(2) application server according to the back to message to caller coloring ring back tone playing or call failure voice suggestion: application server selects corresponding message to be transmitted to caller through local network according to respectively answering the response message that number returns;
(3) called party answer, the calling and called conversation; Or call failure.
Described step (1) further comprises following operating procedure:
(11) be positioned at the called one number service Subscriber Number of calling user dials of PSTN, mobile network or developing from pas network, signaling is delivered letters through local signalling system No.7 transit point LSTP and is made gateway SG, send the soft switch SS in the flexible exchanging network to handle by SG;
(12) soft switch is checked numbers and is analyzed, if the called one number service section that belongs to, call routing arrives application server by initial session protocol SIP with call proceeding;
(13) business software in the application server is according to called one number service number, and query subscriber database obtains the predefined number of answering of this one number service number, and it is handed down to soft switch, prepares replay call; Described one number service number is predefined answers number has when a plurality of, these answer number can be provided with different Ring Modes respectively: ring simultaneously, order ring or the ring of timetable pattern, and control by application server, the Ring Mode that is provided with according to the user makes a call to a plurality of numbers of answering;
(14) the called number of answering of flexible exchange analysis belongs to PSTN, by the routing rule, through SGW SG and local Signalling Transfer Point LSTP signaling is delivered to the end office (EO) that this answers number; Belong to mobile network or developing from pas network if answer number, then send gateway exchange GW to advance his net signaling by SG, local LSTP;
(15) answer number place office according to user's current state after signalling system No.7 is responded in soft switch to message, this back has two kinds to message: contain the idle or back of user to the Address Complete Message ACM of warning tone (Address Complete), and the release message REL (RELease) that contains the failure cause that routing failure or user do;
(16) soft switch will be transmitted to application server from being the response message of Session Initiation Protocol to message conversion behind the signalling system No.7 of PSTN, mobile network or developing from pas network.
Described step (2) further comprises following operating procedure:
(21) application server receives the sip response message of respectively answering number, after these response messages are analyzed, makes corresponding different disposal;
(22) soft switch is set up Media Stream by MGCP control Calling Side Tandem Gateway TG with media server and is connected, so that the CRBT of media server broadcast or the Media Stream of failure notification sound are sent to TG;
(23) after TG is converted to pulse-code modulation PCM form with media stream formats, Media Stream is sent to call subscriber terminal by repeat circuit.
The different disposal step that application server is taked according to response message in the described step (21) is one of following two kinds of operations:
(211) if a plurality of numbers of answering all return failed message, then select corresponding message (for example " the interim transfer failed ") to be transmitted to originating switch by soft switch, allow the user hear busy tone, end of calling; Perhaps select failure notification voice (for example " sorry, this user temporarily can't answer, and please dials after a while again "), and the notice media server prepares to play broadcast back call release, end of calling;
(212) if answering number, at least one responds the connect message have the idle character of user (" 180 " of SIP for example: called terminal ringing message or " 183 ": call progress message), judge again then whether this one number service number has activated Ring Back Tone service, if, then according to the CRBT sound of user preset, the control media server is prepared playback; If not, then select normal ring-back tone to send.
Described step (3) further comprises following operating procedure:
(31) have a terminal to be in idle condition in the number as if answering, and behind user's off-hook, the success message of replying is delivered to soft switch through PSTN, continue to carry out subsequent operation; Though perhaps terminal is in idle condition, but ring unanswered, application server is judged overtime, then take out stitches, send out disconnecting signal to media server to the called release message that initiatively sends, the CRBT sound interrupts, and transmits disconnecting signal through soft switch to the PSTN originating switch simultaneously, after this end office (EO) takes out stitches, allow the calling subscriber hear busy tone, end of calling;
(32) soft switch correspondingly is converted to the SIP success message with this response message, is sent to application server;
(33) after the application server controls media server stops speech play and discharges media server resources, again the SIP success message is transferred to soft switch;
(34) soft switch changes session attribute by MGCP control Calling Side Tandem Gateway TG, sets up the Media Stream passage with callee side Tandem Gateway TG again;
(35) calling and called conversation; Voice transmit in the PSTN-TG repeat circuit with pulse-code modulation PCM form through the processing of two Tandem Gateways of PSTN and calling and called side, transmit with the streamed IP Packet Based Network between these two Tandem Gateways of IP grouping package media, without MRS and SS.
The present invention has the following advantages and effect with respect to prior art:
(1) simple, the clear layer of network configuration, dispose easily: each local network all is provided with corresponding SGW SG (Signal Gateway) and Tandem Gateway TG (Trunk Gateway) as Access Layer, be used to insert local one number connecting calling, unify to deliver to key-course again and handle, IN service is handled and database all is placed on the application server of operation layer.This structure has embodied the access, carrying, control of next generation network NGN technology, the characteristics that professional four big functions are separated well, makes the deployment of IN service and revises easily and realize, the modification of user property is also very simple, conveniently.
(2) implementation method of media ring function is simple, easy: under application server controls, media server to a plurality of TG playbacks, by Ring Back Tone service platform centralized control, is convenient to management by bearer network; Can support in the soft exchanging network and use this business with the PSTN user of soft switch intercommunication, wide coverage, resource-sharing is abundant, needn't additionally take the relay resource of color ring platform.
When (3) number is answered in the binding strange land, needn't take long relaying,, reduce taking of long relay resource, save rate by bearer network-IP Packet Based Network-shunting.And answer number and be not limited to fixed line, can also be connected to mobile phone or phs telephone by gateway exchange.
(4) comprehensive treatment capability and efficient height: because soft switch can reach the call handling capacity of 1,000,000 grades BHCA, and Access Layer can be adjusted the quantity that is provided with of SG and TG according to the telephone traffic of local network, and then the adjustment access capability, so comprehensive treatment capability of the present invention and operating efficiency are all than the platform height of traditional SSP-SCP framework.
Description of drawings
Fig. 1 is that the present invention utilizes soft switch to realize the network system composition configuration diagram of one number service Ring Back Tone service at fixed network.
Fig. 2 is that the present invention utilizes soft switch to realize the method flow block diagram of one number service Ring Back Tone service at fixed network.
Fig. 3 is that the present invention calls out the operating process sequential chart that fixed network one number service user coloring ring back tone playing realizes calling.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, the present invention is a kind of system that utilizes Softswitch technology to realize fixed network one number service Ring Back Tone service, is made up of flexible exchanging network and public switched telephone network PSTN; Wherein the group-network construction of flexible exchanging network is: by interconnective by local area network (LAN), at least comprise application server AS, the business platform that media server MRS and WEB server are formed is as application layer, with Softswitch SS as key-course, to have IP Packet Based Network that service quality QoS guarantees as bearing bed, in each public telephone local network PSTN, place the equipment of Access Layer again: SGW SG and Tandem Gateway TG etc., so that this flexible exchanging network is as a value-added service platform of striding local network relatively independent with local network PSTN, PSTN by Tandem Gateway and SGW and this local network interconnects, and realizes the one number service Ring Back Tone service of special number section.Icon among the figure in the PSTN net is respectively: end office (EO)-LS:Local Switch, tandem exchange-TM:Tandom, toll switch-TS:Toll Switch, gateway exchange-GW:Gateway, local Signalling Transfer Point LSTP:Local Signalling Transport Point.
The equipment of operation layer in the flexible exchanging network and key-course wherein, comprise that application server (APPServer), media server (MRS) and soft switch nucleus equipments such as (SS) are placed on the key city usually, the equipment of Access Layer is placed on each local network as Tandem Gateway (TG), SGW (SG) etc.
Application server (APP Server) is the nucleus equipment of business platform, is responsible for providing the execution environment of service logic and the generation and the management function of service logic.Also can provide the API of various openings, for the exploitation of third party's business provides authoring platform.Have the database of one number service Ring Back Tone service in the AS, realize answering the translation of number to actual binding, and be responsible for this professional CRBT management by the one number service number.Application server can link to each other with one or more soft switch, and the one number service Ring Back Tone service is provided.
Media server (MRS) also claims Media Resource Server, is responsible for providing functions such as the processing capacity such as broadcast, mixing, format conversion of speech business and needed all kinds of audio frequency of value-added service and/or vision signal and speech recognition, phonetic synthesis; In many ways the required multiple spot processing capacity of multi-media conference call control, i.e. meeting bridge function are provided.MRS links to each other by MGCP with application server, stores all CRBT files.Media server is subjected to application server controls and the coloring ring back tone playing sound.
The WEB server is the one number service CRBT portal website of telecom operators, the user can have access to this server by the HTTP mode, again by inner ethernet access application server, realize the management of the data of one number service number, as change the number of answering of binding, change the ring mode, change CRBT sound etc.; Telecommunications attendant and CRBT content supplier also can visit this server by the HTTP mode, to the CRBT clauses and subclauses in MRS storehouse increase, operation such as deletion, modification.
Softswitch (SS) is the control core of soft exchanging network, calls out control, billing function for the business with real-time requirement provides.
SGW (SG) is the functional entity that is connected across between No.7 signaling network and the soft exchanging network, connects soft switch SS by SIGTRAN; Be responsible for to the SS7 signaling message transfer, translation or finalization process, according to using and service scenario, SGW can independently be provided with also can close with Tandem Gateway and establish.
Tandem Gateway (TG) is the functional entity that is connected across between PSTN/ISDN net and the soft exchanging network, is responsible for termination TDM repeat circuit and with the form of media stream transition composition networking requirement.
Referring to Fig. 2, introduce a kind of operating process of utilizing Softswitch technology to realize the method for fixed network one number service Ring Back Tone service of the present invention:
(A) call out the one number service number, be routed to the number of answering of this one number service number bundling through flexible exchanging network: when calling one number service number, each local network all with this Call Forwarding to soft switch, soft switch is delivered to application server with this calling again and is handled, after obtaining the number that receives calls of this one number service number bundling, give call forward called accordingly;
(B) application server according to the back to message to caller coloring ring back tone playing or call failure voice suggestion: application server selects corresponding message to be transmitted to caller through local network according to respectively answering the response message that number returns;
(C) called party answer, the calling and called conversation; Or call failure.
Referring to Fig. 3, introduce specifically that the present invention calls out fixed network one number service user's coloring ring back tone playing and each step of the operating process of an embodiment realizing calling out:
(1) PSTN sends one number connecting calling to the flexible exchanging network processing: the calling subscriber A that is positioned at PSTN dials called one number service Subscriber Number B, and its signaling is sent SG1 through a local LS1 of end office (EO) and a local signalling system No.7 transmission point LSTP1, send SS to handle by SG1.
(2) soft switch is checked numbers and is analyzed, if the called one number service number segment that belongs to, then call routing arrives application server by Session Initiation Protocol with call proceeding;
(3) the one number service Ring Back Tone service software in the application server is according to called one number service number, and query subscriber database obtains the predefined number C that receives calls of this one number service number, and it is handed down to the soft switch replay call; If the user is provided with a plurality of numbers of answering, can be arranged to different Ring Modes such as ring simultaneously, order ring, the ring of timetable pattern, then under application server controls, make a call to a plurality of numbers of answering according to the Ring Mode that the user registered;
(4) this called phone number of flexible exchange analysis C belongs to PSTN, then by the routing rule, with the end office (EO) LS2 of signaling through SG2 and LSTP2 arrival C user, the terminal ring of number C; Certainly, the called phone number also can belong to mobile network or developing from pas network;
(5) LS2 of end office (EO) of number C according to user's current state after signalling system No.7 is responded in soft switch to message, as: ACM Address Complete Message (user's free time, back to warning tone etc.) or REL release message (contain and comprise failure reason values such as routing failure, user be busy at least);
(6) soft switch will be the response message of Session Initiation Protocol to message conversion from the back of NO.7 of PSTN, be transmitted to application server;
(7) application server receives the sip response message of respectively answering number, and according to the analysis-by-synthesis of response message being taked one of following two kinds of operations:
If a plurality of numbers of answering all return failed message, then select corresponding message (for example 483: " interim shift failure ") to be transmitted to the calling subscriber; Perhaps select failure notification voice (for example " sorry, this user temporarily can't answer, and please dials after a while again "), and connect port and resource, prepare to play by MGCP notice media server, and call release;
If at least one is answered number and responds the success message that continues of user's free time (" 180 " of SIP for example: called terminal ringing message or " 183 ": call progress message), then application server judges whether this one number service number has activated Ring Back Tone service again, if, then according to the CRBT sound of user preset, the control media server is prepared playback; If not, then select normal ring-back tone to send;
(8) soft switch SS sets up Media Stream by MGCP control Calling Side Tandem Gateway TG1 with media server MRS and is connected, so that the CRBT of media server broadcast or the Media Stream of failure notification sound are sent to TG1;
(9) TG1 is sent to call subscriber terminal A by repeat circuit with Media Stream after media stream formats is converted to pulse-code modulation PCM form;
(10) if called user terminal C is in idle condition, and user C off-hook, response message is sent into soft switch through PSTN;
(11) soft switch transfers response message to the SIP success message, is sent to application server;
(12) the application server controls Media Resource Server stops speech play, discharges the Media Resource Server resource;
(13) application server is transmitted soft switch to the SIP success message;
(14) soft switch changes session attribute by MGCP control Calling Side TG1, sets up the Media Stream passage with callee side TG2;
(15) calling and called conversation: the voice of this moment are handled through PSTN and TG1, TG2 and are transmitted, and wherein are pulse-code modulation PCM form between LS1-TG1 and the LS2-TG2, between the TG1-TG2 for IP grouping package media flows, without MRS and SS.
By above-mentioned flow process as seen, the one number service number is when called, and all ring-back tones are sent by MRS, and application server is afterwards selected different ring-back tones to response signal according to different.Wherein answer various modes such as number can be set to shake together, CSC, timetable ring.
Claims (11)
1, a kind of system that utilizes Softswitch technology to realize fixed network one number service Ring Back Tone service comprises flexible exchanging network and public switched telephone network PSTN; It is characterized in that: the framework of described flexible exchanging network is: by interconnective by local area network (LAN), at least comprise application server AS, the business platform that media server MRS and WEB server are formed is as application layer, with Softswitch SS as key-course, to have IP Packet Based Network that service quality QoS guarantees as bearing bed, set up as Access Layer and form to be arranged on SGW SG among each public telephone local network PSTN and Tandem Gateway TG again, this flexible exchanging network is as a value-added service platform of striding local network relatively independent with local network PSTN, interconnect by Tandem Gateway and SGW and each local network PSTN, realize the one number service Ring Back Tone service of special number section.
2, the system of realization fixed network one number service Ring Back Tone service according to claim 1, it is characterized in that: described fixed network one number service telephone number is special-purpose special number section: do not take the actual physical circuit, have only the virtual-number section of storage in application server; This one number service telephone number is provided by the local network number resource.
3, the system of realization fixed network one number service Ring Back Tone service according to claim 1, it is characterized in that: the application server AS in the application layer of described flexible exchanging network is the core apparatus of this value-added service platform, be responsible for providing the execution environment of one number service Ring Back Tone service logic and the generation and the management function of service logic, provide the application interface API of various openings, as the development platform of third party's business; Also be provided with the database of one number service Ring Back Tone service, be used to realize by of the translation of one number service number to actual binding number, and storage and managing customized ring back tone; This application server connects one or more Softswitch SS by session initiation protocol SIP;
Described media server MRS, it is Media Resource Server, be responsible for providing speech business and value-added service needed broadcast, mixing, format conversion and the speech recognition of all kinds of audio frequency and/or vision signal, the processing capacity of phonetic synthesis of including but not limited to, store all CRBT files and warning tone file, in many ways the required multiple spot processing capacity of multi-media conference call control, i.e. meeting bridge function are provided; MRS links to each other by MGCP with AS, so that receive the control signaling of application server, coloring ring back tone playing sound;
Described Web server is the one number service CRBT portal website of operator, user, telecommunications attendant and CRBT content supplier are all by this server of internet access, by inner ethernet access AS, the user realizes the management function of the data of one number service number by this again: comprise the foundation and the modification of answering number, ring mode and CRBT sound of binding at least; Telecommunications attendant and CRBT content supplier then carry out the edit operation of additions and deletions, modification by this to the CRBT clauses and subclauses of resources bank among the MRS.
4, according to the system of claim 1 or 3 described realization fixed network one number service Ring Back Tone services, it is characterized in that: the soft switch SS in the key-course of described flexible exchanging network is the control core of this network, calls out control and billing function for the business with real-time requirement provides; The application layer in this flexible exchanging network and the network element device of key-course, promptly application server AS, media server MRS, WEB server and Softswitch all are arranged on the key city usually.
5, the system of realization fixed network one number service Ring Back Tone service according to claim 1, it is characterized in that: the SGW SG in the Access Layer of described flexible exchanging network is the functional entity that is connected across between No.7 nation-wide Network and the soft exchanging network, be responsible for to signalling system No.7 message SS7 transfer, translation or finalization process, link to each other with soft switch SS by signaling transportation protocol SIGTRAN and to transmit signaling;
Described Tandem Gateway TG is the functional entity that is connected across between PSTN net and the soft exchanging network, be responsible for termination time division multiplexing tdm repeat circuit, and, be connected and transmission information with soft switch SS by the Packet Based Network host-host protocol with the form of media stream transition composition networking requirement;
Described SGW and Tandem Gateway are independent the settings, and perhaps both close and are made as one, depend on the needs of using with service.
6, the system of realization fixed network one number service Ring Back Tone service according to claim 1, it is characterized in that: described flexible exchanging network is one or more by the local network PSTN that SG, TG connect, simultaneously a plurality of flexible exchanging networks are realized intercommunication, soft exchanging network also connects mobile network and/or Personal Handyphone System net by the gateway exchange GW of each local network, with the broaden business networking, the user that feasible business provides scope to comprise fixed network, mobile network and Personal Handyphone System net forms a superposing type value-added service network on existing PSTN.
7, a kind of method of utilizing Softswitch technology to realize fixed network one number service Ring Back Tone service is characterized in that: comprise the following steps:
(1) calls out the one number service number, be routed to the number of answering of this one number service number bundling through flexible exchanging network: when calling one number service number, each local network all with this Call Forwarding to soft switch, soft switch is delivered to application server with this calling again and is handled, after obtaining the number that receives calls of this one number service number bundling, give call forward called accordingly;
(2) application server according to the back to message to caller coloring ring back tone playing or call failure voice suggestion: application server selects corresponding message to be transmitted to caller through local network according to respectively answering the response message that number returns;
(3) called party answer, the calling and called conversation; Or call failure.
8, the method for realization fixed network one number service Ring Back Tone service according to claim 7, it is characterized in that: described step (1) further comprises following operating procedure:
(11) be positioned at the called one number service Subscriber Number of calling user dials of PSTN, mobile network or developing from pas network, signaling is delivered letters through local signalling system No.7 transit point LSTP and is made gateway SG, send the soft switch SS in the flexible exchanging network to handle by SG;
(12) soft switch is checked numbers and is analyzed, if the called one number service section that belongs to, call routing arrives application server by initial session protocol SIP with call proceeding;
(13) business software in the application server is according to called one number service number, and query subscriber database obtains the predefined number of answering of this one number service number, and it is handed down to soft switch, prepares replay call; Described one number service number is predefined answers number has when a plurality of, these answer number can be provided with different Ring Modes respectively: ring simultaneously, order ring or the ring of timetable pattern, and control by application server, the Ring Mode that is provided with according to the user makes a call to a plurality of numbers of answering;
(14) the called number of answering of flexible exchange analysis belongs to PSTN, by the routing rule, through SGW SG and local Signalling Transfer Point LSTP signaling is delivered to the end office (EO) that this answers number; Belong to mobile network or developing from pas network if answer number, then send gateway exchange GW to pass in and out his net signaling by SG, local LSTP;
(15) answer number place office according to user's current state after signalling system No.7 is responded in soft switch to message, this back has two kinds to message: contain the Address Complete Message ACM of the idle or back of user to warning tone, and the release message REL that contains the failure cause that routing failure or user do;
(16) soft switch will be transmitted to application server from being the response message of Session Initiation Protocol to message conversion behind the signalling system No.7 of PSTN, mobile network or developing from pas network.
9, the method for realization fixed network one number service Ring Back Tone service according to claim 7, it is characterized in that: described step (2) further comprises following operating procedure:
(21) application server receives the sip response message of respectively answering number, after these response messages are analyzed, makes corresponding different disposal;
(22) soft switch is set up Media Stream by MGCP control Calling Side Tandem Gateway TG with media server and is connected, so that the CRBT of media server broadcast or the Media Stream of failure notification sound are sent to TG;
(23) after TG is converted to pulse-code modulation PCM form with media stream formats, Media Stream is sent to call subscriber terminal by repeat circuit.
10, the method for realization fixed network one number service Ring Back Tone service according to claim 9 is characterized in that: the different disposal step that application server is taked according to response message in the described step (21) is one of following two kinds of operations:
(211) if a plurality of numbers of answering all return failed message, then select corresponding message to be transmitted to originating switch, allow the user hear busy tone, end of calling by soft switch; Perhaps select the failure notification voice, and the notice media server prepares to play call release after playing, end of calling;
(212) respond the connect message that has the idle character of user if at least one answers number, judge again then whether this one number service number has activated Ring Back Tone service, if then according to the CRBT sound of user preset, the control media server is prepared playback; If not, then select normal ring-back tone to send.
11, the method for realization fixed network one number service Ring Back Tone service according to claim 7, it is characterized in that: described step (3) further comprises following operating procedure:
(31) have a terminal to be in idle condition in the number as if answering, and behind user's off-hook, the success message of replying is delivered to soft switch through PSTN, continue to carry out subsequent operation; Though perhaps terminal is in idle condition, but ring unanswered, application server is judged overtime, then take out stitches to the called release message that initiatively sends, send out disconnecting signal to media server, the CRBT sound interrupts, transmit disconnecting signal through soft switch to the PSTN originating switch simultaneously, after this end office (EO) takes out stitches, allow the calling subscriber hear busy tone, end of calling;
(32) soft switch correspondingly is converted to the SIP success message with this response message, is sent to application server;
(33) after the application server controls media server stops speech play and discharges media server resources, again the SIP success message is transferred to soft switch;
(34) soft switch changes session attribute by MGCP control Calling Side Tandem Gateway TG, sets up the Media Stream passage with callee side Tandem Gateway TG again;
(35) calling and called conversation; Voice transmit in the PSTN-TG repeat circuit with pulse-code modulation PCM form through the processing of two Tandem Gateways of PSTN and calling and called side, transmit with the streamed IP Packet Based Network between these two Tandem Gateways of IP grouping package media, without MRS and SS.
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| CN 200510089021 CN1909577A (en) | 2005-08-03 | 2005-08-03 | System and method for realizing fixed network one-code-through color ring service by using soft exchanging technology |
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| CN 200510089021 CN1909577A (en) | 2005-08-03 | 2005-08-03 | System and method for realizing fixed network one-code-through color ring service by using soft exchanging technology |
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| CN1909577A true CN1909577A (en) | 2007-02-07 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101170734B (en) * | 2007-11-28 | 2010-09-22 | 华为技术有限公司 | Method and device for service intercommunication between different networks |
| WO2011113285A1 (en) * | 2010-03-15 | 2011-09-22 | 中兴通讯股份有限公司 | Service application request processing method and system thereof, application server |
| WO2012037744A1 (en) * | 2010-09-25 | 2012-03-29 | 中兴通讯股份有限公司 | System and method for achieving call traffic wholesale based on soft switch |
| CN102868689A (en) * | 2012-09-05 | 2013-01-09 | 杭州东信北邮信息技术有限公司 | Method and system for realizing polyphonic ringtone business in one-number business |
| CN109426935A (en) * | 2017-08-29 | 2019-03-05 | 菜鸟智能物流控股有限公司 | Communication information distribution method and device, communication method and device, equipment and medium |
| CN111327773A (en) * | 2020-02-03 | 2020-06-23 | 深圳震有科技股份有限公司 | Conference mode-based method and device for processing contact numbers in call session |
| CN112770359A (en) * | 2019-11-05 | 2021-05-07 | 中国移动通信有限公司研究院 | Data distribution method and equipment |
| CN114374673A (en) * | 2021-12-15 | 2022-04-19 | 东方通信股份有限公司 | Method for selecting optimal media gateway by signaling gateway in PDT cross-system interconnection |
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- 2005-08-03 CN CN 200510089021 patent/CN1909577A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101170734B (en) * | 2007-11-28 | 2010-09-22 | 华为技术有限公司 | Method and device for service intercommunication between different networks |
| WO2011113285A1 (en) * | 2010-03-15 | 2011-09-22 | 中兴通讯股份有限公司 | Service application request processing method and system thereof, application server |
| WO2012037744A1 (en) * | 2010-09-25 | 2012-03-29 | 中兴通讯股份有限公司 | System and method for achieving call traffic wholesale based on soft switch |
| CN102868689A (en) * | 2012-09-05 | 2013-01-09 | 杭州东信北邮信息技术有限公司 | Method and system for realizing polyphonic ringtone business in one-number business |
| CN109426935A (en) * | 2017-08-29 | 2019-03-05 | 菜鸟智能物流控股有限公司 | Communication information distribution method and device, communication method and device, equipment and medium |
| CN112770359A (en) * | 2019-11-05 | 2021-05-07 | 中国移动通信有限公司研究院 | Data distribution method and equipment |
| CN112770359B (en) * | 2019-11-05 | 2023-10-27 | 中国移动通信有限公司研究院 | Data distribution method and device |
| CN111327773A (en) * | 2020-02-03 | 2020-06-23 | 深圳震有科技股份有限公司 | Conference mode-based method and device for processing contact numbers in call session |
| CN111327773B (en) * | 2020-02-03 | 2021-10-22 | 深圳震有科技股份有限公司 | Conference mode-based method and device for processing contact numbers in call session |
| CN114374673A (en) * | 2021-12-15 | 2022-04-19 | 东方通信股份有限公司 | Method for selecting optimal media gateway by signaling gateway in PDT cross-system interconnection |
| CN114374673B (en) * | 2021-12-15 | 2023-07-25 | 东方通信股份有限公司 | Method for selecting optimal media gateway by signaling gateway in PDT (PDT) cross-system interconnection) |
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