CN101635777B - Method of Realizing network fax service, network fax system and application server - Google Patents
Method of Realizing network fax service, network fax system and application server Download PDFInfo
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- CN101635777B CN101635777B CN2008101316646A CN200810131664A CN101635777B CN 101635777 B CN101635777 B CN 101635777B CN 2008101316646 A CN2008101316646 A CN 2008101316646A CN 200810131664 A CN200810131664 A CN 200810131664A CN 101635777 B CN101635777 B CN 101635777B
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Abstract
The invention discloses a method for realizing network fax service, a network fax system and an application server. The method for realizing network fax service comprises that: a web server receives a fax document and a called fax machine number inputted by a user; the web server transmits the fax document to a media server, and transmits the called fax machine number and the address information of the fax document to the application server; and the application server controls soft switch to establish a fax channel between the media server and a called fax machine, and the called fax machine receives the fax document from the media server. The network fax service has the advantages of clear structure, simple arrangement and relay resource saving. Compared with the prior art, the method is more suitable for operating enterprises to arrange the network fax service on a large scale.
Description
Technical field
The present invention relates to the fax through internet technology, relate in particular to fax through internet business realization method, network facsimile system and fax through internet application server.
Background technology
Professional a kind of Internet (internet) user of fax through internet uses network-termination device (for example computer, personal digital assistant, mobile phone etc.) to send file, or receive the business of file from facsimile machine to the phone with facsimile function (facsimile machine).The file format of supporting can be a basic document format such as HTML, DOC, XLS, PPT, TXT, PDF, also can be pel form commonly used such as BMP, JPG, TIF etc.
At present fax through internet business realization mode on PSTN (PSTN) network with traditional intelligence net SSP (Service Switching Point)-SCP (service control point), or utilize CTI (computer telecommunication is integrated) technology to make up.These modes all need certain relay resource, and the increasing along with the use amount of business inevitably will increase relay resource, and cost is increased.In addition, adopt Intellight network mode, because the ability of SSP is limit, if realizing that fax through internet is professional, need burst to set up a plurality of intelligent service platforms, the equipment that relates to is many, and scrap build is wide, realizes complicated.
Summary of the invention
The technical problem that the present invention will solve provides a kind of deployment fax through internet business realization easily method.
The invention provides a kind of fax through internet business realization method, comprise step: Web server receives the fax paper and the called facsimile machine number of user's input; Web server is issued media server with said fax paper, and called facsimile machine number and fax paper address information are sent to application server; The application server controls soft switch is set up fax passage called facsimile machine from the media server file of receiving faxes between media server and called facsimile machine.
An embodiment according to fax through internet business realization method of the present invention; Application server is after receiving called fax number; Before the fax passage was set up, also comprise step: the application server controls soft switch was set up the voice suggestion passage between media server and called facsimile machine.
An embodiment according to fax through internet business realization method of the present invention; The voice suggestion passage is set up in this application server controls soft switch between media server and called facsimile machine step comprises: application server sends invitation message to soft switch, and the voice resource conversation description symbol of callee side is returned in soft switch; Application server sends invitation message to media server, carries the voice resource descriptor of callee side in the message; Media server returns voice resource conversation description symbol to application server; Application server returns the voice resource conversation description symbol of soft switch media server; Media server and callee side are set up the realtime transmission protocol RTP passage, and media server prompting callee side is received faxes.
According to an embodiment of fax through internet business realization method of the present invention, the fax passage is set up in this application server controls soft switch between media server and called facsimile machine step comprises: application server sends invitation message to media server; Media server returns fax resource conversation description symbol; Application server sends invitation message to soft switch, carries the fax resource conversation description symbol of media server; The fax resource conversation description symbol of callee side is returned in soft switch to application server; Application server carries the fax resource conversation description symbol of callee side and arrives media server through confirming (ACK) message, sets up the fax passage between media server and the called facsimile machine.
The present invention also provides a kind of fax through internet business realization method, and comprise step: dial the fax Subscriber Number through facsimile machine, facsimile call is connected to soft switch; Soft switch judges that said fax Subscriber Number is the fax through internet Subscriber Number, and facsimile call is reported application server; Application server is set up Media Stream at media server and facsimile machine, and media server receives the fax paper that sends from facsimile machine.
According to an embodiment of above-mentioned implementation method of the present invention, before the fax passage was set up, also comprise step: the application server controls soft switch was set up the voice suggestion passage between said media server and said facsimile machine.
Wherein, the voice suggestion passage is set up in the application server controls soft switch between said media server and said facsimile machine step comprises: application server sends invitation message to media server, carries the voice resource conversation description symbol of Calling Side; Media server returns the voice resource conversation description symbol of media server; Application server returns 200ok message to soft switch, carries the voice resource conversation description symbol of media server; Acknowledge message is returned in soft switch, between media server and facsimile machine, sets up voice channel.
According to an embodiment of above-mentioned implementation method of the present invention, the step that application server is set up Media Stream at media server and facsimile machine comprises: application server sends invitation message to media server; The fax resource conversation description symbol that media server returns; Application server sends invitation message to soft switch, carries the fax resource conversation description symbol of media server; The fax resource conversation description symbol of Calling Side is returned in soft switch to application server; Application server accords with to the fax resource conversation description that media server returns Calling Side, sets up the fax passage at media server and Calling Side.
It is pointed out that two kinds of above-mentioned fax through internet business realization methods can use in the consolidated network environment.
Another technical problem that the present invention will solve provides a kind of deployment fax through internet operation system easily.
Fax through internet operation system provided by the invention; Comprise: Web server; Be used to receive fax paper and called fax number, fax paper is sent to media server, fax paper address information and called fax number are sent to application server from client; Application server, be used to receive faxes file address information and called fax number, the control soft switch is set up Media Stream between media server and facsimile machine; Media server is used for sending fax paper through Media Stream to facsimile machine from the Web server file of receiving faxes; Perhaps receive file from facsimile machine through Media Stream; Soft switch is used to realize call proceeding, controlled function.
According to an embodiment of fax through internet operation system of the present invention, this system also comprises: the network terminal is used to receive the fax paper and the called fax number of user's input, and sends to Web server.Facsimile machine is used for perhaps sending fax paper to media server from the media server file of receiving faxes.
An embodiment according to fax through internet operation system of the present invention; This system also comprises: Tandem Gateway is used to be implemented in the voice service stream that carries on the IP packet network and encoding and decoding, the packing function between the common exchanging telephone network PSTN circuit speech; SGW is used to be implemented in the translation function between the signaling and pstn signaling on the IP packet network.
The present invention also provides a kind of application server, comprising: information receiving module, called fax number that is used to receive and fax paper address information; Media Stream is set up module, is used to control soft switch according to the said called fax number called facsimile machine that continues, and between media server and said called facsimile machine, sets up Media Stream.
Fax through internet business realization method and system provided by the invention, system configuration is clear, disposes simply, saves relay resource, disposes advantage easily thereby have.
Description of drawings
Fig. 1 is the structure chart according to fax through internet operation system of the present invention;
Fig. 2 is the flow chart that is sent an embodiment of the fax through internet business realization method of faxing to facsimile machine by the network terminal according to of the present invention;
Fig. 3 is the signaling process figure that is sent an embodiment of fax to facsimile machine by the network terminal according to of the present invention;
Fig. 4 is the signaling process figure that is sent another embodiment of fax to facsimile machine by the network terminal according to of the present invention;
Fig. 5 is the flow chart that is sent an embodiment of the fax through internet business realization method of faxing to the network terminal by facsimile machine according to of the present invention;
Fig. 6 is the signaling process figure that is sent an embodiment of fax to the network terminal by facsimile machine according to of the present invention;
Fig. 7 is the signaling process figure that is sent another embodiment of fax to the network terminal by facsimile machine according to of the present invention;
Fig. 8 is the block diagram according to application server of the present invention.
Embodiment
With reference to the accompanying drawings the present invention is more comprehensively described, exemplary embodiment of the present invention wherein is described.
Fig. 1 illustrates the structure chart according to fax through internet operation system of the present invention.As shown in Figure 1, the main network element entity that this system relates to comprises Network Termination #1 1, Web server 12, application server 13, media server 14, soft switch 15, Tandem Gateway 16, SGW 17, facsimile machine 18.
Wherein, application server 13 is fax through internet business realizing carrier, and is mutual through signaling protocol with communication network (comprising flexible exchanging network, PTSN network etc.), accomplishes the professional control of fax through internet.Web server 12 is realized fax through internet service portal function, to the user fax through internet operation Web is provided the page, and application server 13 is submitted in the fax through internet request.Media server 14 is fax resource processing servers, realizes the initiation and the termination of fax stream.Network Termination #1 1 is a fax through internet client carrier, and the user can use fax through internet professional through the fax through internet client.Soft switch 15 realizes the control of PSTN calling network, function continues.Tandem Gateway 16 is implemented in function such as the encoding and decoding between the voice-over Business Stream and PSTN circuit speech, packing, delay variation filtering on the IP packet network.SGW 17 is implemented in the translation function between the signaling and pstn signaling on the IP packet network.Facsimile machine 18 realizes that the network terminal is professional to the fax through internet between the facsimile machine.
In the network of NGN (next generation network) and PSTN coexistence, Tandem Gateway and SGW are used to realize the intercommunication of NGN and PSTN.And in pure NGN network, can omit Tandem Gateway and SGW.
According to one embodiment of present invention, application server 13 is SIP (session initiation protocol) application server.Sip application server 13 can be realized call proceeding through Session Initiation Protocol control soft switch 15, and sip application server 13 can pass through the fax resource of MGCP (MGCP) agreement or Session Initiation Protocol control Media Resource Server 14 to be handled.Sip application server 13 can pass through the IP protocol communication with WEB server 12, accomplishes the transmitting function of telefax service parameter (like information such as calling number, called number, fax paper addresses).Web server 12 can pass through the IP protocol communication with media server 14, accomplishes the fax paper of uploading and visiting reception of the fax paper that sends.Media server 14 and Tandem Gateway 16 be through T38, T30 or RTP (RTP) protocol communication, faxes, the transmission of media resource such as speech.Network Termination #1 1 can pass through http communication with Web server 12, the client downloads of faxing, the fax paper file etc. of uploading, receive faxes.
Fig. 2 is the flow chart that is sent an embodiment of the fax through internet business realization method of faxing to facsimile machine by the network terminal according to of the present invention.
As shown in Figure 2, in step 201, Web server receives the fax paper and the called facsimile machine number of user's input; File format can be a basic document format such as HTML, DOC, XLS, PPT, TXT, PDF, also can be pel form commonly used such as BMP, JPG, TIF etc.
In step 203, Web server is issued media server with fax paper, and called facsimile machine number and fax paper address information are sent to application server;
In step 205, application server according to the called facsimile machine number called facsimile machine that continues, and through MGCP agreement or Session Initiation Protocol control media server, is set up the fax passage through Session Initiation Protocol control soft switch between media server and called facsimile machine.Called facsimile machine is from the media server file of receiving faxes.
In an application examples, the user locates the log on facsimile service the fax through internet service provider, the fax through internet service number of obtaining the authorization.The fax through internet service portal that Web browser access operator through computer provides, promptly Web server is downloaded the fax through internet client software also is installed.When the hairnet network was faxed, the user accomplished authenticating user identification through Web browser accesses network facsimile service door.Through the fax through internet service portal, the user imports called facsimile machine number, and selection needs the fax paper of transmission, and the type of fax paper can be the document format of various supports.The fax paper that fax through internet client control on subscriber computer will send the user converts the file format that media server is supported to, and the file loading after will changing is to Web server.Web server passes to application server with calling subscriber's service number.
Fig. 3 is the signaling process figure that is sent an embodiment of fax to facsimile machine by the network terminal according to of the present invention.
As shown in Figure 3, in step 301, Web server is uploaded fax paper address information and called fax number to application server (AS) after media server is uploaded fax paper.
In step 303, application server sends Invite (invitation) message to soft switch; 180 message are returned in soft switch.
In step 305,200ok message is returned in soft switch behind the called party answer, wherein carries the voice resource conversation description symbol SDP (b1) of callee side.The content of conversation description comprises IP address, port information, speech media parameter of the speech resources that this session indications, WMG that the called subscriber connected provide for this session etc.。
In step 307, application server sends Invite message to media server (MRS), carries SDP (b1) in the message, request voice medium resource.
In step 309, media server returns 200ok message to application server, wherein carries the voice resource conversation description symbol SDP (mrs1) of media server.The content of conversation description comprises IP address, port information, speech media parameter of the speech resources that this session indications, media server provide for this session etc.
In step 311, application server carries media server SDP (mrs1) through ACK message and returns soft switch.
In step 313, media server and callee side are set up RTP (RTP) passage, and media server prompting callee side is received faxes.
In step 315, application server sends Invite message to media server, request facsimile medium resource;
In step 317, media server returns 200ok message, carries the fax resource conversation description symbol SDP (mrs2) of media server in the message.The content of conversation description comprises IP address, port information, facsimile medium parameter of the fax resource that this session indications, media server provide for this session etc.
In step 319, application server sends INVITE to soft switch, carries media server SDP (mrs2).Soft switch supports SDP (mrs1) to adopt different IP address and port numbers with SDP (mrs2).
In step 321, soft switch is returned 200ok message to application server, carries the fax resource conversation description symbol SDP (b2) of callee side in the message.The content of conversation description comprises IP address, port information, facsimile medium parameter of the fax resource that this session indications, WMG that the called subscriber connected provide for this session etc.
In step 323, application server carries callee side fax resource SDP (b2) through ACK (affirmation) message and arrives media server, and media server and callee side are set up the fax passage.
Fig. 4 is the signaling process figure that is sent another embodiment of fax to facsimile machine by the network terminal according to of the present invention.
As shown in Figure 4, in step 401, Web server is uploaded fax paper to media server, uploads fax paper address information and called fax number to application server.
In step 403, application server sends Invite message to soft switch, carries SDP (a1), and the IP address that comprises among this SDP is a virtual ip address.Callee side returns 180 message.
In step 405, soft switch is returned 200ok message to application server, wherein carries callee side SDP (b1).
In step 407, application server sends Invite message to media server (MRS).
In step 409, media server returns 200ok message to application server, wherein carries the fax resource conversation description symbol SDP (mrs2) of media server.
In step 411, application server sends Invite message to soft switch, carries media server SDP (mrs2).
In step 413,200ok message is returned in soft switch, carries the fax resource conversation description symbol SDP (b2) of callee side in the message.
In step 415, application server returns ACK message to media server, carries SDP (b2).
In step 417, media server and callee side are set up the fax passage.Callee side begins the file of receiving faxes after receiving the fax prompt tone.
Fig. 5 is the flow chart that is sent an embodiment of the fax through internet business realization method of faxing to the network terminal by facsimile machine according to of the present invention.
As shown in Figure 5, in step 501, the user dials the fax Subscriber Number through facsimile machine, and facsimile call is connected to soft switch.
In step 503, soft switch judges whether the fax Subscriber Number is the fax through internet Subscriber Number, if then this facsimile call is reported application server.
In step 505, application server is routed to media server with facsimile call; Media server and facsimile machine are set up Media Stream, receive the fax paper that sends from this facsimile machine
Fig. 6 is the signaling process figure that is sent an embodiment of fax to the network terminal by facsimile machine according to of the present invention.
As shown in Figure 6, in step 601, calling user dials called network fax number.
In step 603; Soft switch is sent Invite message to application server; Carry Calling Side conversation description symbol SDP (a1), the content of conversation description comprises the IP address, port information, speech media parameter of the speech resources that this session indications, WMG that the calling subscriber connected provide for this session etc.; Application server returns 180 message.Adopt common number mode like the fax through internet number, soft switch will obtain the fax through internet service key from SHLR, and specific requirement can not done detailed elaboration at this paper referring to China Telecom's related specifications requirement.
In step 605,607, application server sends Invite message to media server, carries Calling Side SDP (a1); Media server returns 200ok; Carry the conversation description symbol SDP (mrs1) of media server, the content of conversation description comprises the IP address, port information, speech media parameter of the speech resources that this session indications, media server provide for this session etc.Application server returns ACK message to media server.
In step 609, application server returns 200ok message to soft switch, carries media server SDP (mrs1); ACK message is returned in soft switch.
In step 611, media server is advised voice channel to the calling subscriber.
In step 613,615, application server sends Invite message to media server; Media server returns 200ok message; Carry the fax resource conversation description symbol SDP (mrs2) of media server, the content of conversation description comprises the IP address, port information, facsimile medium parameter of the fax resource that this session indications, media server provide for this session etc.
In step 617,619, application server sends Invite message to soft switch, carries media server SDP (mrs2); 200ok message is returned in soft switch; Carry the fax resource conversation description symbol SDP (a2) of Calling Side, the content of conversation description comprises the IP address, port information, facsimile medium parameter of the fax resource that this session indications, WMG that the calling subscriber connected provide for this session etc.Soft switch supports SDP (mrs1) to adopt different IP address and port numbers with SDP (mrs2).
In step 621, application server returns ACK message to media server, carries Calling Side SDP (a2).
In step 623,625, media server and Calling Side are set up the fax passage.The user can obtain fax through the Web mode.
Fig. 7 is the signaling process figure that is sent another embodiment of fax to the network terminal by facsimile machine according to of the present invention.
As shown in Figure 7, in step 701, calling user dials called network fax number.
In step 703, soft switch is sent INVITE to application server, carries Calling Side SDP (a1); Application server returns 180.Adopt common number mode like the fax through internet number, soft switch will obtain the fax through internet service key from SHLR, and specific requirement is referring to China Telecom's related specifications requirement, and this paper does not set forth.
In step 705, application server returns 200ok message to soft switch, carries SDP (b1), and the IP address that this SDP comprises is a virtual ip address.
In step 707,709, application server sends INVITE to media server; Media server returns 200ok message, carries media server SDP (mrs2).
In step 711,713, application server sends INVITE to soft switch, carries media server SDP (mrs2); Soft switch is returned 200ok message to application server, carries Calling Side SDP (a2).Soft switch supports SDP (b1) to adopt different IP address and port numbers with SDP (mrs2).
In step 715, application server returns ACK message to media server, carries Calling Side SDP (a2).
In step 717,719, media server and Calling Side are set up the fax passage.The user can obtain fax through the Web mode.
It may be noted that in the flow process in above-mentioned Fig. 3,4,6,7,, do not mark the simple standard SIP signaling of part, like 100trying, 180Ring etc. for simplified flow chart.
Fig. 8 is the block diagram according to application server of the present invention.As shown in Figure 8, this application server comprises that information receiving module 81 and Media Stream set up module 82.Wherein, the information receiving module 81 called fax number and the fax paper address information that are used to receive.Media Stream is set up module 82 and is used to control soft switch according to the said called fax number called facsimile machine that continues, and between media server and said called facsimile machine, sets up Media Stream.Media Stream is set up module and is communicated by letter with media server through MGCP or Session Initiation Protocol interface, communicates by letter with soft switch through Session Initiation Protocol.
Fax through internet business realization method and system provided by the invention has clear in structure, disposes simply, saves relay resource, compares with the realization of prior art, and it is professional to be more suitable for operation enterprise large scale deployment fax through internet.In addition, adopt, help the fax through internet professional ability being built in the IT application of third party service provider and enterprise to open internet open network fax professional ability based on the sip application server pattern.
Description of the invention provides for example with for the purpose of describing, and is not the disclosed form that exhaustively perhaps limit the invention to.A lot of modifications and variation are obvious for those of ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment that have various modifications that the present invention's design is suitable for special-purpose.
Claims (12)
1. a fax through internet business realization method is characterized in that, comprises step:
Web server receives the fax paper and the called facsimile machine number of user's input;
Web server is issued media server with said fax paper, and said called facsimile machine number and fax paper address information are sent to application server;
Application server sends invitation message to media server; Media server returns fax resource conversation description symbol;
Application server sends invitation message to soft switch, carries the said fax resource conversation description symbol of media server; The fax resource conversation description symbol of callee side is returned in soft switch to application server;
The said fax resource conversation description symbol that application server carries callee side through acknowledge message arrives media server, sets up the fax passage between media server and the called facsimile machine; Said called facsimile machine receives said fax paper from said media server.
2. fax through internet business realization method according to claim 1 is characterized in that, before said fax passage is set up, also comprises step:
The application server controls soft switch is set up the voice suggestion passage between said media server and said called facsimile machine.
3. fax through internet business realization method according to claim 2 is characterized in that, the voice suggestion passage is set up in said application server controls soft switch between said media server and said called facsimile machine step comprises:
Application server sends invitation message to soft switch, and the voice resource conversation description symbol of callee side is returned in soft switch;
Application server sends invitation message to media server, carries the voice resource conversation description symbol of said callee side in the message; Media server returns voice resource conversation description symbol to application server;
Application server returns the said voice resource conversation description symbol of soft switch media server; Media server and callee side are set up real-time transmission protocol path, and media server prompting callee side is received faxes.
4. according to any described fax through internet business realization method in the claim 1 to 3, it is characterized in that, also comprise the steps:
Accomplish the authentication to the user at Web server, Web server sends to application server with calling subscriber's service number.
5. a fax through internet business realization method is characterized in that, comprises step:
Dial the fax Subscriber Number through facsimile machine, facsimile call is connected to soft switch;
Soft switch judges that said fax Subscriber Number is the fax through internet Subscriber Number, reports application server with said facsimile call;
Application server sends invitation message to media server; The fax resource conversation description symbol that media server returns; Application server sends invitation message to soft switch, carries the said fax resource conversation description symbol of media server; The fax resource conversation description symbol of Calling Side is returned in soft switch to application server;
Application server accords with to the said fax resource conversation description that media server returns Calling Side, sets up the fax passage at media server and Calling Side; Said media server receives the fax paper that sends from said facsimile machine.
6. fax through internet business realization method according to claim 5 is characterized in that, before said fax passage is set up, also comprises step:
The application server controls soft switch is set up the voice suggestion passage between said media server and said facsimile machine.
7. fax through internet business realization method according to claim 6 is characterized in that, the voice suggestion passage is set up in said application server controls soft switch between said media server and said facsimile machine step comprises:
Application server sends invitation message to media server, carries the voice resource conversation description symbol of Calling Side; Media server returns the voice resource conversation description symbol of media server;
Application server returns 200ok message to soft switch, carries the said voice resource conversation description symbol of media server; Acknowledge message is returned in soft switch, between media server and said facsimile machine, sets up voice channel.
8. a network facsimile system is characterized in that, comprising:
Web server is used to receive fax paper and the called fax number from client, and said fax paper is sent to media server, and fax paper address information and said called fax number are sent to application server;
Said application server is used to receive said fax paper address information and called fax number, and the control soft switch is set up Media Stream between said media server and facsimile machine;
Said media server is used for sending fax paper through said Media Stream to said facsimile machine from the said Web server file of receiving faxes; Perhaps receive file from said facsimile machine through said Media Stream;
Said soft switch is used to realize call proceeding, controlled function;
Wherein, Said application server is communicated by letter with said soft switch through session initiation protocol; Said application server is communicated by letter with said media server through MGCP or session initiation protocol; Said application server and said Web server are through the IP protocol communication, and said Web server and said media server are through the IP protocol communication.
9. fax through internet operation system according to claim 8 is characterized in that, also comprises:
The network terminal is used to receive the fax paper and the called fax number of user's input, and sends to said Web server;
Facsimile machine is used for perhaps sending fax paper to said media server from the said media server file of receiving faxes.
10. according to Claim 8 or 9 described fax through internet operation systems, it is characterized in that, also comprise:
Tandem Gateway is used to be implemented in the voice service stream and encoding and decoding between the common exchanging telephone network PSTN circuit speech of carrying on the IP packet network, packs or unpacks function;
SGW is used to be implemented in the translation function between the signaling and PSTN signaling on the IP packet network.
11. an application server is characterized in that, comprising:
Information receiving module, called fax number that is used to receive and fax paper address information;
Media Stream is set up module, is used to control soft switch according to the said called fax number called facsimile machine that continues, and between media server and said called facsimile machine, sets up Media Stream;
Wherein, application server sends invitation message to media server; Media server returns fax resource conversation description symbol; Application server sends invitation message to soft switch, carries the said fax resource conversation description symbol of media server; The fax resource conversation description symbol of callee side is returned in soft switch to application server; The said fax resource conversation description symbol that application server carries callee side through acknowledge message arrives media server, sets up the fax passage between media server and the called facsimile machine.
12. application server according to claim 11 is characterized in that, said Media Stream is set up module and is communicated by letter with said media server through MGCP or session initiation protocol interface, communicates by letter with soft switch through session initiation protocol.
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| CN2008101316646A CN101635777B (en) | 2008-07-21 | 2008-07-21 | Method of Realizing network fax service, network fax system and application server |
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| CN2008101316646A CN101635777B (en) | 2008-07-21 | 2008-07-21 | Method of Realizing network fax service, network fax system and application server |
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| CN101635777A CN101635777A (en) | 2010-01-27 |
| CN101635777B true CN101635777B (en) | 2012-11-07 |
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| CN103595893A (en) * | 2013-11-21 | 2014-02-19 | 上海浦东物流云计算有限公司 | Fax sending and processing method, device and system |
| CN103581494B (en) * | 2013-11-21 | 2016-02-17 | 上海浦东物流云计算有限公司 | Transmission processing method, the Apparatus and system of fax |
| CN104049977A (en) * | 2014-06-27 | 2014-09-17 | 上海新跃物流企业管理有限公司 | System and method for achieving network faxes through internet |
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