CN104811579A - Facsimile service processing system, method and apparatus - Google Patents
Facsimile service processing system, method and apparatus Download PDFInfo
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- CN104811579A CN104811579A CN201410038825.2A CN201410038825A CN104811579A CN 104811579 A CN104811579 A CN 104811579A CN 201410038825 A CN201410038825 A CN 201410038825A CN 104811579 A CN104811579 A CN 104811579A
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Abstract
The invention discloses a facsimile service processing system, method and apparatus. The facsimile service processing method comprises the following steps that: a conversion control apparatus in a first communication network determines that the intersection of coding modes supported by facsimile equipment in a second communication network and coding modes supported by facsimile equipment in the first communication network is empty; and when facsimile data transmitted by the facsimile equipment in the first communication network are received, the coding mode of the facsimile data is converted into a coding mode supported by the facsimile equipment in the second communication network, and then, the coding mode is transmitted to the facsimile equipment in the second communication network. According to the facsimile service processing system, method and apparatus provided by the technical schemes of the invention, the conversion control apparatus in the first communication network is utilized to convert the coding mode of the facsimile equipment in the first communication network into the coding mode of the facsimile equipment in the second communication network, and normal proceeding of facsimile services can be still ensured when coding consultation fails, and therefore, the success rate of the facsimile services can be improved.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of facsimile service treatment system, method and apparatus.
Background technology
Traditional based on public switched telephone network (Public Switched Telephone Network, PSTN) facsimile service is realized by T.30 facsimile signal substantially, and along with IP multimedia subsystem, IMS (IPMultimedia Subsystem, IMS) development of IMS network, the Fax over IP service needed of IMS network user and the facsimile service of the PSTN network user realize intercommunication.
At present, different according to the code encoding/decoding mode that adopts in facsimile posting, the transmission of the facsimile signal of IP based network mainly contains two kinds of modes: based on T.30 agreement (voice-band data (Voice Band Data, VBD) pattern) with based on T.38 agreement.
The many protocol types according to terminal support of prior art are consulted to adopt which kind of transmission means.Its main process is: whether called media gateway inquiry called user terminal supports T.38 agreement, if support T.38 agreement, then called media gateway selects T.38 agreement to answer to caller soft switch response, and negotiation result is and all adopts T.38 agreement in facsimile posting; If called user terminal does not support T.38 agreement, then select T.30 agreement to respond to caller soft switch and answer, negotiation result is and all adopts T.30 agreement to carry out facsimile service in facsimile posting.
Above-mentioned negotiation scheme in call subscriber terminal and called user terminal, have a side or two Fang Jun to support T.38 and T.30 agreement time can consult successfully, when call subscriber terminal and called user terminal only support a kind of agreement, when the protocol type that both sides support is identical, also can consult successfully, but, a kind of agreement is only supported at call subscriber terminal and called user terminal, but when the protocol type that both sides support is not identical, then can cause consulting unsuccessfully, consult the failure unsuccessfully also just meaning facsimile service.Therefore, there is the lower problem of facsimile service success rate in the existing facsimile service processing method based on negotiation scheme.
Summary of the invention
The embodiment of the present invention provides a kind of facsimile service treatment system, method and apparatus, in order to solve the lower problem of the facsimile service success rate unsuccessfully caused because of coding negotiation that exists in prior art.
Embodiment of the present invention technical scheme is as follows:
A kind of facsimile service treatment system, comprising:
Be in the facsimile equipment in the first communication network, for sending facsimile data to the conversion and control equipment be in the first communication network;
Be in the conversion and control equipment in the first communication network, for receiving the coding negotiation result that the media gateway be in the first communication network sends, and the coded system determining the facsimile equipment support be in second communication network according to this coding negotiation result is empty set with the common factor of the coded system being in the facsimile equipment support in the first communication network, and when being in the facsimile data that the facsimile equipment in the first communication network sends described in receiving, after being in the coded system of the facsimile equipment support in second communication network described in the coded system of this facsimile data being converted to, the media gateway in the first communication network is in described in sending to,
Be in the media gateway in the first communication network, for determining the coding negotiation result being in the coded system that the facsimile equipment in the first communication network is supported with the facsimile equipment be in second communication network, and this coding negotiation result is sent to described conversion and control equipment, and the facsimile data after the transform coding mode sent by the described conversion and control equipment received sends to the media gateway be in second communication network;
Be in the media gateway in second communication network, for carrying out coding negotiation with the media gateway be in the first communication network, the facsimile data from the media gateway be in the first communication network received is sent to the facsimile equipment be in second communication network;
Be in the facsimile equipment in second communication network, for receiving the facsimile data that the media gateway be in second communication network sends.
A kind of facsimile service processing method, the method comprises: the conversion and control equipment in the first communication network of being in receive that the media gateway be in the first communication network determines about the facsimile equipment be in the first communication network and the coding negotiation result being in the coded system that the facsimile equipment in second communication network is supported, and
The coded system being in the facsimile equipment support in second communication network described in determining according to this coding negotiation result is empty set with the common factor of the coded system being in the facsimile equipment support in the first communication network, and
When being in the facsimile data that the facsimile equipment in the first communication network sends described in receiving, after being in the coded system of the facsimile equipment support in second communication network described in the coded system of this facsimile data being converted to, described in sending to, be in the facsimile equipment in second communication network.
A kind of conversion and control equipment, is in the first communication network, comprises:
Receiving element, for the media gateway received in the first communication network determine about the facsimile equipment be in the first communication network and the coding negotiation result being in the coded system that facsimile equipment in second communication network is supported, and described in receiving, be in the facsimile data that the facsimile equipment in the first communication network sends;
Determining unit is empty set for the coded system being in the facsimile equipment support in second communication network described in determining according to this coding negotiation result with the common factor of the coded system being in the facsimile equipment support in the first communication network;
Converting unit, for when being in the facsimile data that the facsimile equipment in the first communication network sends described in receiving, is in the coded system that the facsimile equipment in second communication network is supported described in the coded system of this facsimile data being converted to;
Transmitting element, is in facsimile equipment in second communication network described in being sent to by the facsimile data after conversion.
A kind of facsimile equipment, described facsimile equipment comprises:
Transmitting element, for media gateway or the conversion and control equipment transmission facsimile data of the communication network residing for self, described conversion and control equipment, be in the first communication network, for the media gateway received in the first communication network determine about the facsimile equipment be in the first communication network and the coding negotiation result being in the coded system that facsimile equipment in second communication network is supported, and the coded system being in the facsimile equipment support in second communication network described in determining according to this coding negotiation result is empty set with the common factor of the coded system being in the facsimile equipment support in the first communication network, and when being in the facsimile data that the facsimile equipment in the first communication network sends described in receiving, after being in the coded system of the facsimile equipment support in second communication network described in the coded system of this facsimile data being converted to, the facsimile equipment in second communication network is in described in sending to,
Receiving element, for receiving the coded system Indication message that conversion and control equipment sends;
Coding unit, for encoding to facsimile data according to the coding Indication message received.
In embodiment of the present invention technical scheme, change owing to make use of the coded system of conversion and control equipment to the facsimile equipment be in the first communication network in the first communication network, be converted to the coded system of the facsimile equipment be in second communication network, therefore, when coding negotiation failure, still can carry out normally carrying out of facsimile service, improve the success rate of facsimile service.
Accompanying drawing explanation
Fig. 1 is one of facsimile service treatment system structural representation in the embodiment of the present invention;
Fig. 2 is facsimile service process flow schematic diagram in the embodiment of the present invention;
Fig. 3 is facsimile service treatment system structural representation two in the embodiment of the present invention;
Fig. 4 be IMS network in the embodiment of the present invention facsimile equipment from facsimile equipment to PSTN network send facsimile data time facsimile service process schematic diagram;
Fig. 5 be PSTN network in the embodiment of the present invention facsimile equipment from facsimile equipment to IMS network send facsimile data time facsimile service process schematic diagram;
Fig. 6 is the structural representation changing control appliance in the embodiment of the present invention;
Fig. 7 is the structural representation of facsimile equipment in the embodiment of the present invention;
Fig. 8 carries out test result schematic diagram to IWF of T.38 and T.30 faxing in the embodiment of the present invention.
Embodiment
Below in conjunction with each accompanying drawing, the main of embodiment of the present invention technical scheme is realized principle, embodiment and set forth in detail the beneficial effect that should be able to reach.
As shown in Figure 1, for facsimile service treatment system structural representation in the embodiment of the present invention, comprise: be in the facsimile equipment 11 in the first communication network, the conversion and control equipment 12 be in the first communication network, the media gateway 13 be in the first communication network, the facsimile equipment 15 that is in the media gateway 14 in second communication network and is in second communication network, wherein:
Be in the facsimile equipment 11 in the first communication network, for sending facsimile data to the conversion and control equipment 12 be in the first communication network;
Be in the conversion and control equipment 12 in the first communication network, for receiving the coding negotiation result that the media gateway 13 be in the first communication network sends, and the coded system determining the facsimile equipment support 15 be in second communication network according to this coding negotiation result is empty set with the common factor being in the coded system that the facsimile equipment 11 in the first communication network is supported, and when the facsimile data that the facsimile equipment 11 be in described in receiving in the first communication network sends, after being in the coded system that the facsimile equipment 15 in second communication network supports described in the coded system of this facsimile data being converted to, the media gateway 13 in the first communication network is in described in sending to,
Be in the media gateway 13 in the first communication network, for determining the coding negotiation result being in the coded system that the facsimile equipment 11 in the first communication network is supported with the facsimile equipment 15 be in second communication network, and this coding negotiation result is sent to described conversion and control equipment, and the facsimile data after the transform coding mode sent by the described conversion and control equipment 12 received sends to the media gateway 14 be in second communication network;
Be in the media gateway 14 in second communication network, for carrying out coding negotiation with the media gateway 13 be in the first communication network, the facsimile data from the media gateway 13 be in the first communication network received is sent to the facsimile equipment 15 be in second communication network;
Be in the facsimile equipment 15 in second communication network, for receiving the facsimile data that the media gateway 14 be in second communication network sends.
In embodiments of the present invention, change owing to make use of the coded system of conversion and control equipment to the facsimile equipment be in the first communication network in the first communication network, be converted to the coded system of the facsimile equipment be in second communication network, therefore, when coding negotiation failure, still can carry out normally carrying out of facsimile service, improve the success rate of facsimile service.
Above-mentioned transaction processing system gives and sends facsimile data for the facsimile equipment be in the first communication network, the facsimile equipment be in second communication network receives the facsimile service processing scheme of facsimile data, preferably, in order to improve facsimile service success rate further, on the basis of above-mentioned facsimile service treatment system, the embodiment of the present invention gives and is being in the transmission of the facsimile equipment in second communication network facsimile data, the facsimile equipment be in the first communication network receives the facsimile service treatment system of the facsimile service processing scheme of facsimile data, specific as follows:
The described facsimile equipment 15 be in second communication network, the facsimile data also for sending to the media gateway 14 be in second communication network;
The described media gateway 14 be in second communication network, also for determining the coding negotiation result being in the coded system that the facsimile equipment 11 in the first communication network is supported with the facsimile equipment 15 be in second communication network, and this coding negotiation result is sent to described conversion and control equipment 12, and the facsimile data from the facsimile equipment 15 being in second communication network received is sent to the media gateway 13 be in the first communication network;
Described conversion and control equipment 12, also for receiving the coding negotiation result from the media gateway 14 be in second communication network that the media gateway 13 be in the first communication network forwards, and to be in coded system that facsimile equipment 15 in second communication network supports described in determining according to this coding negotiation result with the common factor being in the coded system that the facsimile equipment 11 in the first communication network is supported be empty set, and when the facsimile data sent from the facsimile equipment 15 being in second communication network that the media gateway 13 that is in described in receiving in the first communication network forwards, after being in the coded system that the facsimile equipment 11 in the first communication network supports described in the coded system of this facsimile data being converted to, the facsimile equipment 11 in the first communication network is in described in sending to,
The described facsimile equipment 11 be in the first communication network, also for receiving the facsimile data that described conversion and control equipment 12 sends.
Further, consider the successful execution of facsimile service, after consulting successfully, also need the support of network, in reality, facsimile service due to PSTN is branched holds T.30 agreement, even if therefore coding is assisted successfully, negotiation result can be caused to be all use T.30 agreement in facsimile posting, but, due to the time delay that the IP network of IMS network access side may exist, packet loss and shake etc., and T.30 Protocol Through Network requires higher, and then when the user terminal of PSTN and the user terminal of IMS carry out facsimile service, T.30 facsimile signal can be caused to lose more serious, therefore, the facsimile service success rate be applied between the IMS network of intercommunication and PSTN network is lower, in order to address this problem, on the basis of above-described embodiment, the embodiment of the present invention provides following three kinds of preferred versions, be specially:
The first preferred version:
Described coded system comprises the first coded system and the second coded system, and the laser propagation effect of data in the first communication network using described first coded system to carry out encoding is better than using described second coded system to carry out the laser propagation effect of data in the first communication network of encoding;
The coded system that the described facsimile equipment 11 be in the first communication network is supported comprises the first coded system and the second coded system, the coded system that the described facsimile equipment 15 be in second communication network is supported comprises the second coded system, or comprises the first coded system and the second coded system;
Described conversion and control equipment 12, the common factor of the coded system that the coded system also supported for the facsimile equipment 15 be in described in determining according to coding negotiation result in second communication network and the described facsimile equipment 11 be in the first communication network are supported comprises the second coded system, send coded system Indication message to the facsimile equipment 11 be in the first communication network, this Indication message indicates this facsimile equipment 11 be in the first communication network to use the first coded system to encode to facsimile data; And when receiving this and being in the facsimile data of facsimile equipment 11 transmission in the first communication network, after the coded system of this facsimile data is converted to the second coded system, described in sending to, be in the facsimile equipment 11 in the first communication network.
The second preferred version:
The laser propagation effect of data in the first communication network using described first coded system to carry out encoding is better than using described second coded system to carry out the laser propagation effect of data in the first communication network of encoding;
Described conversion and control equipment 12, coded system also for supporting at the described facsimile equipment 11 be in the first communication network is the first coded system and the second coded system, when the coded system that the described facsimile equipment 15 be in second communication network is supported is the second coded system, the common factor being in coded system that facsimile equipment 15 in second communication network supports and the coded system that the described facsimile equipment 11 be in the first communication network is supported described in determining according to coding negotiation result is the second coded system, and when the facsimile data from facsimile equipment 15 transmission in second communication network that the media gateway 13 be in described in receiving in the first communication network forwards, after second coded system of this facsimile data is converted to the first coded system, the facsimile equipment 11 in the first communication network is in described in sending to.
The third preferred version:
The laser propagation effect of data in the first communication network using described first coded system to carry out encoding is better than using described second coded system to carry out the laser propagation effect of data in the first communication network of encoding;
Described conversion and control equipment 12, also for described be in coded system that facsimile equipment 11 in the first communication network and the described facsimile equipment 15 be in second communication network support be the first coded system and the second coded system time, the common factor being in coded system that facsimile equipment 15 in second communication network supports and the coded system that the described facsimile equipment 11 be in the first communication network is supported described in determining according to coding negotiation result be the first coded system and the second coded system time, coded system Indication message is sent to the facsimile equipment 15 be in second communication network, facsimile equipment 15 in this Indication message instruction second communication network uses the first coded system to carry out the coding of facsimile data, or, coded system Indication message is sent to the described facsimile equipment 15 be in second communication network, this Indication message indicates this facsimile equipment 15 be in second communication network to use the second coded system to carry out the coding of facsimile data, and when the facsimile data that the facsimile equipment 15 be in described in receiving in second communication network sends, after second coded system of this facsimile data is converted to the first coded system, described in sending to, be in the facsimile equipment 11 in the first communication network.
The first preferred version above-mentioned for be in facsimile equipment in the first communication network to send facsimile data, the facsimile equipment be in second communication network receives the facsimile service processing scheme of facsimile data, the second preferred version and the third preferred version for be that the facsimile equipment be in second communication network sends facsimile data, the facsimile equipment be in the first communication network receives the facsimile service processing scheme of facsimile data.
In the embodiment of the present invention, described first communication network can be, but not limited to as IMS network, and described second communication network can be, but not limited to as PSTN.
If the first communication network is IMS network, described second communication network is PSTN, then T.38 above-mentioned first coded system can be, and T.30 above-mentioned second coded system can be.
In the embodiment of the present invention, described conversion and control equipment can for being positioned at the session-orient E-Service equipment (Session Border Controller, SBC) between user and multimedia subsystem, IMS network.
Described SBC, between IMS Access Network and IMS core net, accesses the sole inlet point of IMS network as user, be responsible for user's access security, QOS controls and NAT passes through.
In the embodiment of the present invention, be based on following consideration using SBC as conversion and control equipment: if set up separately equipment to carry out T.30 raising the cost with conversion T.38 and increasing network complexity.Because equipment of the core network is lower to supporting dynamics T.38, thus T.30, T.38 translation function be not suitable for being arranged in the equipment of core net.SBC, between Access Network and core net, can meet and adopt T.38 protocol code mode at Access Network, therefore realizes being T.30 optimal scheme with T.38 code conversion function on SBC.
Suppose that above-mentioned first communication network is IMS network, second communication network is PSTN network, and T.38 the first coded system is, T.30 the second coded system is, just utilizes table (1) and table (2) scheme to the embodiment of the present invention to illustrate more concisely below:
Table (1)
Table (2)
Based on the facsimile service system shown in Fig. 1, the embodiment of the present invention also proposes a kind of facsimile service processing method, and as shown in Figure 2, its concrete treatment step is as follows:
Step 21: the conversion and control equipment in the first communication network of being in receive that the media gateway be in the first communication network determines about the facsimile equipment be in the first communication network and the coding negotiation result being in the coded system that the facsimile equipment in second communication network is supported.
The first communication network in the embodiment of the present invention can be, but not limited to as IMS network, and second communication network can be, but not limited to as PSTN network; T.38 above-mentioned first coded system can be, and T.30 above-mentioned second coded system can be; Above-mentioned conversion and control equipment can be SBC.
Step 22: conversion and control equipment determine according to this coding negotiation result described in the common factor of the coded system being in the facsimile equipment support in second communication network and the coded system that is in the facsimile equipment support in the first communication network be empty set.
Step 23: when being in the facsimile data that the facsimile equipment in the first communication network sends described in receiving, after being in the coded system of the facsimile equipment support in second communication network described in the coded system of this facsimile data being converted to, described in sending to, be in the facsimile equipment in second communication network.
Preferably, described coded system comprises the first coded system and the second coded system, and the laser propagation effect of data in the first communication network using described first coded system to carry out encoding is better than using described second coded system to carry out the laser propagation effect of data in the first communication network of encoding;
The coded system of the described facsimile equipment support be in the first communication network comprises the first coded system and the second coded system, the coded system of the described facsimile equipment support be in second communication network comprises the second coded system, or comprises the first coded system and the second coded system;
Described method also comprises:
Described conversion and control equipment determine according to coding negotiation result described in be in the coded system of the facsimile equipment support in second communication network and the coded system of the described facsimile equipment support be in the first communication network common factor comprise the second coded system, send coded system Indication message to the described facsimile equipment be in the first communication network, this Indication message indicates this facsimile equipment be in the first communication network to use the first coded system to encode to facsimile data; And
When being in the facsimile data that the facsimile equipment in the first communication network sends described in receiving, after the coded system of this facsimile data is converted to the second coded system, described in sending to, be in the facsimile equipment in second communication network.
Preferably, described method also comprises:
Described conversion and control equipment receive that the media gateway be in the first communication network forwards from the media gateway be in second communication network about the facsimile equipment be in the first communication network and the coding negotiation result being in the coded system that the facsimile equipment in second communication network is supported; And
The coded system being in the facsimile equipment support in second communication network described in determining according to this coding negotiation result is empty set with the common factor of the coded system being in the facsimile equipment support in the first communication network, and
When being in the facsimile data that the facsimile equipment in second communication network sends described in receiving, after being in the coded system of the facsimile equipment support in the first communication network described in the coded system of this facsimile data being converted to, described in sending to, be in the facsimile equipment in the first communication network.
Preferably, the laser propagation effect of data in the first communication network using described first coded system to carry out encoding is better than using described second coded system to carry out the laser propagation effect of data in the first communication network of encoding;
Be the first coded system and the second coded system in the coded system of the described facsimile equipment support be in the first communication network, described in the coded system of facsimile equipment support that is in second communication network when being the second coded system, described method also comprises:
Described conversion and control equipment determine according to coding negotiation result described in be in the coded system of the facsimile equipment support in second communication network and the coded system of the described facsimile equipment support be in the first communication network common factor be the second coded system; And
When receiving the facsimile data that the facsimile equipment in second communication network sends, after the second coded system of this facsimile data is converted to the first coded system, send to the facsimile equipment in described first communication network.
Preferably, the laser propagation effect of data in the first communication network using described first coded system to carry out encoding is better than using described second coded system to carry out the laser propagation effect of data in the first communication network of encoding;
Be the first coded system and the second coded system in the coded system of the described facsimile equipment support be in the first communication network, the coded system of the described facsimile equipment support be in second communication network be the first coded system and the second coded system time, described method also comprises:
Described conversion and control equipment determines that according to coding negotiation result the common factor of the coded system of the facsimile equipment support in the coded system of the facsimile equipment support in described second communication network and described first communication network is the first coded system and the second coded system;
Send coded system Indication message to the facsimile equipment in second communication network, the facsimile equipment in this Indication message instruction second communication network uses the first coded system to encode to facsimile data;
Or
Send coded system Indication message to the facsimile equipment in second communication network, the facsimile equipment in this Indication message instruction second communication network uses the second coded system to encode to facsimile data; And
When receiving the facsimile data that the facsimile equipment be in second communication network sends, after the second coded system of this facsimile data is converted to the first coded system, described in sending to, be in the facsimile equipment in the first communication network.
Illustrating in more detail when facsimile service treatment system shown in Fig. 3 is applied in the scheme of the embodiment of the present invention below.
When the facsimile equipment in IMS network and the facsimile equipment in PSTN carry out facsimile service, and support different fax encoding and decoding, namely PSTN uses T30, now uses SBC namely to carry out encoding and decoding conversion, to make T.38 and T.30 facsimile signal can intercommunication.
Fig. 4 and Fig. 5 is the quick-reading flow sheets of facsimile data intercommunication, eliminates the IMS-core part between SBC and PSTN.
Signaling process figure when Fig. 4 is the facsimile equipment initiation facsimile service in IMS network, specifically comprises the following steps:
The first step: fax INVIT message initiated by the facsimile equipment in IMS network, and at Session Description Protocol (Session Descriptive Protocol, SDP) carry the facsimile coding mode (T.38) of support in parameter, be sent to IMS core net and PSTN by SBC.
Second step: IMS core net and PSTN conventionally carry out coding negotiation, if called facsimile equipment support T.38, then carries T.38 parameter in SDP message in 200OK message.SBC judges that coded system is consistent with caller, does not carry out code conversion.Only support T.30 if called, then in 200OK message, carry T.30 parameter in SDP message.SBC judge coded system and caller inconsistent, code conversion (being called situation about only supporting T.30 in Fig. 4) will be started.
3rd step: be switched to data channel and carry out fax data transmission, between IMS facsimile equipment and SBC, use T.38 agreement to carry out transfer of data, T.38 facsimile data carries out code conversion for T.30 data after entering SBC, delivers between IMS core net and PSTN user use T.30 data to transmit at SBC.
Signaling process figure when Fig. 5 is the facsimile equipment initiation facsimile service in PSTN, specifically comprises the following steps:
The first step: fax INVIT message initiated by the facsimile equipment in PSTN network, and carry the facsimile coding mode (T.30) of support in SDP parameter, is sent to IMS core net and PSTN by SBC.
Second step: PSTN and IMS core net conventionally carry out coding negotiation, if called facsimile equipment support T.30, then in 200OK message, carry T.30 parameter in SDP message.SBC judges that coded system is consistent with caller, does not carry out code conversion.Only support T.38 if called, then in 200OK message, carry T.38 parameter in SDP message.SBC judge coded system and caller inconsistent, will code conversion be started.(being called situation about only supporting T.38 in Fig. 5).
3rd step: be switched to data channel and carry out fax data transmission, between PSTN facsimile equipment and IMS core net and SBC, use T.30 agreement to carry out transfer of data, T.30 facsimile data carries out code conversion for T.38 data after entering SBC, delivers between IMS facsimile equipment use T.38 data to transmit at SBC.
Accordingly, the embodiment of the present invention also provides a kind of conversion and control equipment, is in the first communication network, as shown in Figure 6, comprises receiving element 61, determining unit 62, converting unit 63 and transmitting element 64, wherein:
Receiving element 61, for the media gateway received in the first communication network determine about the facsimile equipment be in the first communication network and the coding negotiation result being in the coded system that facsimile equipment in second communication network is supported, and described in receiving, be in the facsimile data that the facsimile equipment in the first communication network sends;
Determining unit 62 is empty set for the coded system being in the facsimile equipment support in second communication network described in determining according to this coding negotiation result with the common factor of the coded system being in the facsimile equipment support in the first communication network;
Converting unit 63, for when being in the facsimile data that the facsimile equipment in the first communication network sends described in receiving, is in the coded system that the facsimile equipment in second communication network is supported described in the coded system of this facsimile data being converted to;
Transmitting element 64, is in facsimile equipment in second communication network described in being sent to by the facsimile data after conversion.
Preferably, described coded system comprises the first coded system and the second coded system, and the laser propagation effect of data in the first communication network using described first coded system to carry out encoding is better than using described second coded system to carry out the laser propagation effect of data in the first communication network of encoding;
The coded system of the facsimile equipment support in described first communication network comprises the first coded system and the second coded system, the coded system of the facsimile equipment support in described second communication network comprises the second coded system, or comprises the first coded system and the second coded system;
Described determining unit 62, the common factor also for the coded system determining the facsimile equipment support in the coded system of the facsimile equipment support in described second communication network and described first communication network according to coding negotiation result comprises the second coded system;
Described conversion and control equipment also comprises: indicating member 65, for sending coded system Indication message to the facsimile equipment be in the first communication network, this Indication message instruction facsimile equipment be in the first communication network uses the first coded system to encode to facsimile data;
Described converting unit 63, also for when receiving the facsimile data that the facsimile equipment be in the first communication network sends, after the coded system of this facsimile data is converted to the second coded system, is in the facsimile equipment in second communication network described in sending to.
Preferably, described receiving element 61, also for receive be in that media gateway in the first communication network forwards from the media gateway be in second communication network about the facsimile equipment be in the first communication network and the coding negotiation result being in the coded system that the facsimile equipment in second communication network is supported, be in the facsimile data that the facsimile equipment in second communication network sends described in reception;
Described determining unit 62, the coded system also for being in the facsimile equipment support in second communication network described in determining according to this coding negotiation result is empty set with the common factor of the coded system being in the facsimile equipment support in the first communication network;
Described converting unit 63, also for when being in the facsimile data that the facsimile equipment in second communication network sends described in receiving, is in the coded system that the facsimile equipment in the first communication network is supported described in the coded system of this facsimile data being converted to;
Described transmitting element 64, is also in facsimile equipment in the first communication network described in being sent to by the facsimile data after conversion.
Preferably, the laser propagation effect of data in the first communication network using described first coded system to carry out encoding is better than using described second coded system to carry out the laser propagation effect of data in the first communication network of encoding;
Described determining unit 62, also for being the first coded system and the second coded system in the coded system of the described facsimile equipment support be in the first communication network, when the coded system of the described facsimile equipment support be in second communication network is the second coded system, the common factor being in the coded system of the facsimile equipment support in second communication network and the coded system of the described facsimile equipment support be in the first communication network described in determining according to coding negotiation result is the second coded system;
Described converting unit 63, also for when being in the facsimile data that the facsimile equipment in second communication network sends described in receiving, is converted to the first coded system by the second coded system of this facsimile data.
Preferably, the laser propagation effect of data in the first communication network using described first coded system to carry out encoding is better than using described second coded system to carry out the laser propagation effect of data in the first communication network of encoding;
Described determining unit 62, also for being the first coded system and the second coded system in the coded system of the described facsimile equipment support be in the first communication network, the coded system of the described facsimile equipment support be in second communication network be the first coded system and the second coded system time, the common factor being in the coded system of the facsimile equipment support in second communication network and the coded system of the described facsimile equipment support be in the first communication network described in determining according to coding negotiation result is the first coded system and the second coded system;
Described conversion and control equipment also comprises: indicating member 65, for sending coded system Indication message to the facsimile equipment be in second communication network, this Indication message indicates this facsimile equipment be in second communication network to use the first coded system to encode to facsimile data; Or use the second coded system to carry out the transmission of facsimile data;
Described converting unit 63, also for sending coded system Indication message at indicating member to the facsimile equipment be in second communication network, when this Indication message indicates this facsimile equipment be in second communication network to use the second coded system to encode to facsimile data, when receiving the facsimile data that the facsimile equipment be in second communication network sends, after second coded system of this facsimile data is converted to the first coded system, described in sending to, be in the facsimile equipment in the first communication network.
Accordingly, the embodiment of the present invention is a kind of facsimile equipment also, and as shown in Figure 7, described facsimile equipment comprises its structural representation:
Transmitting element 71, for media gateway or the conversion and control equipment transmission facsimile data of the communication network residing for self, described conversion and control equipment, be in the first communication network, for the media gateway received in the first communication network determine about the facsimile equipment be in the first communication network and the coding negotiation result being in the coded system that facsimile equipment in second communication network is supported, and the coded system being in the facsimile equipment support in second communication network described in determining according to this coding negotiation result is empty set with the common factor of the coded system being in the facsimile equipment support in the first communication network, and when being in the facsimile data that the facsimile equipment in the first communication network sends described in receiving, after being in the coded system of the facsimile equipment support in second communication network described in the coded system of this facsimile data being converted to, the facsimile equipment in second communication network is in described in sending to,
Receiving element 72, for receiving the coded system Indication message that conversion and control equipment sends;
Coding unit 73, for encoding to facsimile data according to the coding Indication message received.
The present invention's application in the ims network, when in IMS network T.38 fax and PSTN T.30 fax intercommunication time, access side at IMS and use and T.38 fax, carry out forced coding conversion by SBC, use T30 fax at IMS core net and PSTN.Because T.38 fax relay provides powerful redundancy scheme, better to the tolerance of network, still can maintain high fax success rate when IMS Access Network is second-rate, can significantly promote relative to T.30 fax success rate.
Test IWF of T.38 and T.30 faxing under different network conditions, test in network scenarios in following 5, result is as shown in following table (3) and Fig. 8:
Table (3)
Can draw: IMS network and PSTN network interworking scene in, because be T.30 not selectable in PSTN network, so use T.38 fax when network environment is poor, the success rate of fax can be promoted, improve user awareness to a great extent in an ip network.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (20)
1. a facsimile service treatment system, is characterized in that, described system comprises:
Be in the facsimile equipment in the first communication network, for sending facsimile data to the conversion and control equipment be in the first communication network;
Be in the conversion and control equipment in the first communication network, for receiving the coding negotiation result that the media gateway be in the first communication network sends, and the coded system determining the facsimile equipment support be in second communication network according to this coding negotiation result is empty set with the common factor of the coded system being in the facsimile equipment support in the first communication network, and when being in the facsimile data that the facsimile equipment in the first communication network sends described in receiving, after being in the coded system of the facsimile equipment support in second communication network described in the coded system of this facsimile data being converted to, the media gateway in the first communication network is in described in sending to,
Be in the media gateway in the first communication network, for determining the coding negotiation result being in the coded system that the facsimile equipment in the first communication network is supported with the facsimile equipment be in second communication network, and this coding negotiation result is sent to described conversion and control equipment, and the facsimile data after the transform coding mode sent by the described conversion and control equipment received sends to the media gateway be in second communication network;
Be in the media gateway in second communication network, for carrying out coding negotiation with the media gateway be in the first communication network, the facsimile data from the media gateway be in the first communication network received is sent to the facsimile equipment be in second communication network;
Be in the facsimile equipment in second communication network, for receiving the facsimile data that the media gateway be in second communication network sends.
2. facsimile service treatment system as claimed in claim 1, it is characterized in that, described coded system comprises the first coded system and the second coded system, and the laser propagation effect of data in the first communication network using described first coded system to carry out encoding is better than using described second coded system to carry out the laser propagation effect of data in the first communication network of encoding;
The coded system of the described facsimile equipment support be in the first communication network comprises the first coded system and the second coded system, the coded system of the described facsimile equipment support be in second communication network comprises the second coded system, or comprises the first coded system and the second coded system;
Described conversion and control equipment, common factor also for being in the coded system of the facsimile equipment support in second communication network and the coded system of the described facsimile equipment support be in the first communication network described in determining according to coding negotiation result comprises the second coded system, send coded system Indication message to the facsimile equipment be in the first communication network, this Indication message indicates this facsimile equipment be in the first communication network to use the first coded system to encode to facsimile data; And when receiving this and being in the facsimile data of the facsimile equipment transmission in the first communication network, after the coded system of this facsimile data is converted to the second coded system, described in sending to, be in the facsimile equipment in the first communication network.
3. facsimile service treatment system as claimed in claim 1, is characterized in that, described in be in facsimile equipment in second communication network, the facsimile data also for sending to the media gateway be in second communication network;
The described media gateway be in second communication network, also for determining the coding negotiation result being in the coded system that the facsimile equipment in the first communication network is supported with the facsimile equipment be in second communication network, and this coding negotiation result is sent to described conversion and control equipment, and the facsimile data from the facsimile equipment being in second communication network received is sent to the media gateway be in the first communication network;
Described conversion and control equipment, also for receiving the coding negotiation result from the media gateway be in second communication network that the media gateway be in the first communication network forwards, and the coded system being in the facsimile equipment support in second communication network described in determining according to this coding negotiation result is empty set with the common factor of the coded system being in the facsimile equipment support in the first communication network, and be in described in receiving the media gateway in the first communication network forward from be in second communication network facsimile equipment send facsimile data time, after being in the coded system of the facsimile equipment support in the first communication network described in the coded system of this facsimile data being converted to, the facsimile equipment in the first communication network is in described in sending to,
The described facsimile equipment be in the first communication network, also for receiving the facsimile data that described conversion and control equipment sends.
4. facsimile service treatment system as claimed in claim 3, it is characterized in that, the laser propagation effect of data in the first communication network using described first coded system to carry out encoding is better than using described second coded system to carry out the laser propagation effect of data in the first communication network of encoding;
Described conversion and control equipment, also for being the first coded system and the second coded system in the coded system of the described facsimile equipment support be in the first communication network, when the coded system of the described facsimile equipment support be in second communication network is the second coded system, the common factor being in the coded system of the facsimile equipment support in second communication network and the coded system of the described facsimile equipment support be in the first communication network described in determining according to coding negotiation result is the second coded system, and when being in the facsimile data from the facsimile equipment transmission in second communication network that the media gateway in the first communication network forwards described in receiving, after second coded system of this facsimile data is converted to the first coded system, the facsimile equipment in the first communication network is in described in sending to.
5. facsimile service treatment system as claimed in claim 3, it is characterized in that, the laser propagation effect of data in the first communication network using described first coded system to carry out encoding is better than using described second coded system to carry out the laser propagation effect of data in the first communication network of encoding;
Described conversion and control equipment, also in the described coded system being in facsimile equipment in the first communication network and the described facsimile equipment support be in second communication network be the first coded system and the second coded system time, the common factor being in the coded system of the facsimile equipment support in second communication network and the coded system of the described facsimile equipment support be in the first communication network described in determining according to coding negotiation result be the first coded system and the second coded system time, coded system Indication message is sent to the facsimile equipment be in second communication network, facsimile equipment in this Indication message instruction second communication network uses the first coded system to carry out the coding of facsimile data, or, coded system Indication message is sent to the described facsimile equipment be in second communication network, this Indication message indicates this facsimile equipment be in second communication network to use the second coded system to carry out the coding of facsimile data, and when being in the facsimile data that the facsimile equipment in second communication network sends described in receiving, after second coded system of this facsimile data is converted to the first coded system, described in sending to, be in the facsimile equipment in the first communication network.
6. the facsimile service treatment system as described in as arbitrary in claim 1-5, it is characterized in that, described first communication network is multimedia subsystem, IMS network, and described second communication network is public switched telephone network PSTN.
7. the facsimile service treatment system as described in as arbitrary in claim 1-5, it is characterized in that, described conversion and control equipment is the session-orient E-Service equipment SBC between user and multimedia subsystem, IMS network.
8. a facsimile service processing method, is characterized in that, comprising:
The conversion and control equipment in the first communication network of being in receive that the media gateway be in the first communication network determines about the facsimile equipment be in the first communication network and the coding negotiation result being in the coded system that the facsimile equipment in second communication network is supported, and
The coded system being in the facsimile equipment support in second communication network described in determining according to this coding negotiation result is empty set with the common factor of the coded system being in the facsimile equipment support in the first communication network, and
When being in the facsimile data that the facsimile equipment in the first communication network sends described in receiving, after being in the coded system of the facsimile equipment support in second communication network described in the coded system of this facsimile data being converted to, described in sending to, be in the facsimile equipment in second communication network.
9. facsimile service processing method as claimed in claim 8, it is characterized in that, described coded system comprises the first coded system and the second coded system, and the laser propagation effect of data in the first communication network using described first coded system to carry out encoding is better than using described second coded system to carry out the laser propagation effect of data in the first communication network of encoding;
The coded system of the described facsimile equipment support be in the first communication network comprises the first coded system and the second coded system, the coded system of the described facsimile equipment support be in second communication network comprises the second coded system, or comprises the first coded system and the second coded system;
Described method also comprises:
Described conversion and control equipment determine according to coding negotiation result described in be in the coded system of the facsimile equipment support in second communication network and the coded system of the described facsimile equipment support be in the first communication network common factor comprise the second coded system, send coded system Indication message to the described facsimile equipment be in the first communication network, this Indication message indicates this facsimile equipment be in the first communication network to use the first coded system to encode to facsimile data; And
When being in the facsimile data that the facsimile equipment in the first communication network sends described in receiving, after the coded system of this facsimile data is converted to the second coded system, described in sending to, be in the facsimile equipment in second communication network.
10. facsimile service processing method as claimed in claim 8, it is characterized in that, described method also comprises:
Described conversion and control equipment receive that the media gateway be in the first communication network forwards from the media gateway be in second communication network about the facsimile equipment be in the first communication network and the coding negotiation result being in the coded system that the facsimile equipment in second communication network is supported; And
The coded system being in the facsimile equipment support in second communication network described in determining according to this coding negotiation result is empty set with the common factor of the coded system being in the facsimile equipment support in the first communication network, and
When being in the facsimile data that the facsimile equipment in second communication network sends described in receiving, after being in the coded system of the facsimile equipment support in the first communication network described in the coded system of this facsimile data being converted to, described in sending to, be in the facsimile equipment in the first communication network.
11. facsimile service processing methods as claimed in claim 10, it is characterized in that, the laser propagation effect of data in the first communication network using described first coded system to carry out encoding is better than using described second coded system to carry out the laser propagation effect of data in the first communication network of encoding;
Be the first coded system and the second coded system in the coded system of the described facsimile equipment support be in the first communication network, described in the coded system of facsimile equipment support that is in second communication network when being the second coded system, described method also comprises:
Described conversion and control equipment determine according to coding negotiation result described in be in the coded system of the facsimile equipment support in second communication network and the coded system of the described facsimile equipment support be in the first communication network common factor be the second coded system; And
When receiving the facsimile data that the facsimile equipment in second communication network sends, after the second coded system of this facsimile data is converted to the first coded system, send to the facsimile equipment in described first communication network.
12. facsimile service processing methods as claimed in claim 10, it is characterized in that, the laser propagation effect of data in the first communication network using described first coded system to carry out encoding is better than using described second coded system to carry out the laser propagation effect of data in the first communication network of encoding;
Be the first coded system and the second coded system in the coded system of the described facsimile equipment support be in the first communication network, the coded system of the described facsimile equipment support be in second communication network be the first coded system and the second coded system time, described method also comprises:
Described conversion and control equipment determines that according to coding negotiation result the common factor of the coded system of the facsimile equipment support in the coded system of the facsimile equipment support in described second communication network and described first communication network is the first coded system and the second coded system;
Send coded system Indication message to the facsimile equipment in second communication network, the facsimile equipment in this Indication message instruction second communication network uses the first coded system to encode to facsimile data;
Or
Send coded system Indication message to the facsimile equipment in second communication network, the facsimile equipment in this Indication message instruction second communication network uses the second coded system to encode to facsimile data; And
When receiving the facsimile data that the facsimile equipment be in second communication network sends, after the second coded system of this facsimile data is converted to the first coded system, described in sending to, be in the facsimile equipment in the first communication network.
13. as arbitrary in claim 8-12 as described in facsimile service processing method, it is characterized in that, described first communication network is multimedia subsystem, IMS network, and described second communication network is public switched telephone network PSTN.
14. as arbitrary in claim 8-12 as described in facsimile service processing method, it is characterized in that, described conversion and control equipment is the session-orient E-Service equipment SBC between user and multimedia subsystem, IMS network.
15. 1 kinds of conversion and control equipment, are in the first communication network, it is characterized in that, comprising:
Receiving element, for the media gateway received in the first communication network determine about the facsimile equipment be in the first communication network and the coding negotiation result being in the coded system that facsimile equipment in second communication network is supported, and described in receiving, be in the facsimile data that the facsimile equipment in the first communication network sends;
Determining unit is empty set for the coded system being in the facsimile equipment support in second communication network described in determining according to this coding negotiation result with the common factor of the coded system being in the facsimile equipment support in the first communication network;
Converting unit, for when being in the facsimile data that the facsimile equipment in the first communication network sends described in receiving, is in the coded system that the facsimile equipment in second communication network is supported described in the coded system of this facsimile data being converted to;
Transmitting element, is in facsimile equipment in second communication network described in being sent to by the facsimile data after conversion.
16. conversion and control equipment as claimed in claim 15, it is characterized in that, described coded system comprises the first coded system and the second coded system, and the laser propagation effect of data in the first communication network using described first coded system to carry out encoding is better than using described second coded system to carry out the laser propagation effect of data in the first communication network of encoding;
The coded system of the facsimile equipment support in described first communication network comprises the first coded system and the second coded system, the coded system of the facsimile equipment support in described second communication network comprises the second coded system, or comprises the first coded system and the second coded system;
Described determining unit, the common factor also for the coded system determining the facsimile equipment support in the coded system of the facsimile equipment support in described second communication network and described first communication network according to coding negotiation result comprises the second coded system;
Described conversion and control equipment also comprises: indicating member, for sending coded system Indication message to the facsimile equipment be in the first communication network, this Indication message instruction facsimile equipment be in the first communication network uses the first coded system to encode to facsimile data;
Described converting unit, also for when receiving the facsimile data that the facsimile equipment be in the first communication network sends, after the coded system of this facsimile data is converted to the second coded system, is in the facsimile equipment in second communication network described in sending to.
17. conversion and control equipment as claimed in claim 15, it is characterized in that, described receiving element, also for receive be in that media gateway in the first communication network forwards from the media gateway be in second communication network about the facsimile equipment be in the first communication network and the coding negotiation result being in the coded system that the facsimile equipment in second communication network is supported, be in the facsimile data that the facsimile equipment in second communication network sends described in reception;
Described determining unit, the coded system also for being in the facsimile equipment support in second communication network described in determining according to this coding negotiation result is empty set with the common factor of the coded system being in the facsimile equipment support in the first communication network;
Described converting unit, also for when being in the facsimile data that the facsimile equipment in second communication network sends described in receiving, is in the coded system that the facsimile equipment in the first communication network is supported described in the coded system of this facsimile data being converted to;
Described transmitting element, is also in facsimile equipment in the first communication network described in being sent to by the facsimile data after conversion.
18. conversion and control equipment as claimed in claim 17, it is characterized in that, the laser propagation effect of data in the first communication network using described first coded system to carry out encoding is better than using described second coded system to carry out the laser propagation effect of data in the first communication network of encoding;
Described determining unit, also for being the first coded system and the second coded system in the coded system of the described facsimile equipment support be in the first communication network, when the coded system of the described facsimile equipment support be in second communication network is the second coded system, the common factor being in the coded system of the facsimile equipment support in second communication network and the coded system of the described facsimile equipment support be in the first communication network described in determining according to coding negotiation result is the second coded system;
Described converting unit, also for when being in the facsimile data that the facsimile equipment in second communication network sends described in receiving, is converted to the first coded system by the second coded system of this facsimile data.
19. conversion and control equipment as claimed in claim 17, it is characterized in that, the laser propagation effect of data in the first communication network using described first coded system to carry out encoding is better than using described second coded system to carry out the laser propagation effect of data in the first communication network of encoding;
Described determining unit, also for being the first coded system and the second coded system in the coded system of the described facsimile equipment support be in the first communication network, the coded system of the described facsimile equipment support be in second communication network be the first coded system and the second coded system time, the common factor being in the coded system of the facsimile equipment support in second communication network and the coded system of the described facsimile equipment support be in the first communication network described in determining according to coding negotiation result is the first coded system and the second coded system;
Described conversion and control equipment also comprises: indicating member, for sending coded system Indication message to the facsimile equipment be in second communication network, this Indication message indicates this facsimile equipment be in second communication network to use the first coded system to encode to facsimile data; Or use the second coded system to carry out the transmission of facsimile data;
Described converting unit, also for sending coded system Indication message at indicating member to the facsimile equipment be in second communication network, when this Indication message indicates this facsimile equipment be in second communication network to use the second coded system to encode to facsimile data, when receiving the facsimile data that the facsimile equipment be in second communication network sends, after second coded system of this facsimile data is converted to the first coded system, described in sending to, be in the facsimile equipment in the first communication network.
20. 1 kinds of facsimile equipments, is characterized in that, described facsimile equipment comprises:
Transmitting element, for media gateway or the conversion and control equipment transmission facsimile data of the communication network residing for self, described conversion and control equipment, be in the first communication network, the media gateway received in the first communication network determine about the facsimile equipment be in the first communication network and the coding negotiation result being in the coded system that facsimile equipment in second communication network is supported, and the coded system being in the facsimile equipment support in second communication network described in determining according to this coding negotiation result is empty set with the common factor of the coded system being in the facsimile equipment support in the first communication network, and when being in the facsimile data that the facsimile equipment in the first communication network sends described in receiving, after being in the coded system of the facsimile equipment support in second communication network described in the coded system of this facsimile data being converted to, the facsimile equipment in second communication network is in described in sending to,
Receiving element, for receiving the coded system Indication message that conversion and control equipment sends;
Coding unit, for encoding to facsimile data according to the coding Indication message received.
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