CN101448060A - Method and system for prohibiting error correction mode during IP faxing - Google Patents
Method and system for prohibiting error correction mode during IP faxing Download PDFInfo
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- CN101448060A CN101448060A CNA2008102407642A CN200810240764A CN101448060A CN 101448060 A CN101448060 A CN 101448060A CN A2008102407642 A CNA2008102407642 A CN A2008102407642A CN 200810240764 A CN200810240764 A CN 200810240764A CN 101448060 A CN101448060 A CN 101448060A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
- H04N1/00204—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server
- H04N1/00209—Transmitting or receiving image data, e.g. facsimile data, via a computer, e.g. using e-mail, a computer network, the internet, I-fax
- H04N1/00214—Transmitting or receiving image data, e.g. facsimile data, via a computer, e.g. using e-mail, a computer network, the internet, I-fax details of transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
- H04N1/00204—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server
- H04N1/00209—Transmitting or receiving image data, e.g. facsimile data, via a computer, e.g. using e-mail, a computer network, the internet, I-fax
- H04N1/00214—Transmitting or receiving image data, e.g. facsimile data, via a computer, e.g. using e-mail, a computer network, the internet, I-fax details of transmission
- H04N1/0022—Transmitting or receiving image data, e.g. facsimile data, via a computer, e.g. using e-mail, a computer network, the internet, I-fax details of transmission involving facsimile protocols or a combination of facsimile protocols and computer data transmission protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32609—Fault detection or counter-measures, e.g. original mis-positioned, shortage of paper
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/333—Mode signalling or mode changing; Handshaking therefor
- H04N1/33376—Mode signalling or mode changing; Handshaking therefor according to characteristics or state of one of the communicating parties, e.g. available memory capacity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/333—Mode signalling or mode changing; Handshaking therefor
- H04N1/33392—Details of handshaking
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N2201/333—Mode signalling or mode changing; Handshaking therefor
- H04N2201/33307—Mode signalling or mode changing; Handshaking therefor of a particular mode
- H04N2201/33342—Mode signalling or mode changing; Handshaking therefor of a particular mode of transmission mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N2201/333—Mode signalling or mode changing; Handshaking therefor
- H04N2201/33307—Mode signalling or mode changing; Handshaking therefor of a particular mode
- H04N2201/33392—Non-standard capability, e.g. relay, mail-box
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- General Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computing Systems (AREA)
- Facsimiles In General (AREA)
- Facsimile Transmission Control (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a method and a system for prohibiting an error correction mode during the IP faxing and aims to solve the problem that the real-time performance of the prior IP faxing is not strong. The method comprises the following steps: after the reported information about the error correction mode capacity of a receiver facsimile machine is received, at least one of a receiver facsimile machine gateway and a sender facsimile machine gateway judges whether the sender facsimile machine support the correction mode capacity according to the reported information about the error correction mode capacity, modifies the reported information about the error correction mode capacity to a non-support correction mode message in real time, and then forwards the non-support correction mode message. The system comprises an error correction mode capacity reporting unit used for reporting the information about the error correction mode capacity of the receiver facsimile, an error correction mode capacity judging unit used for judging whether the receiver facsimile support the error correction mode capacity, an error correction mode capacity modifying unit used for modifying the reported information about the correction mode capacity into the non-support correction mode information, and a forwarding unit used for forwarding the information about the correction mode capacity. The invention reduces the time delay in the facsimile posting and enhances the real-time performance.
Description
Technical field
The present invention relates to forbid in a kind of Internet protocol (IP, Internet Protocol) fax the method and system of error correction mode.
Background technology
Along with Internet development, the T.38 agreement of carrying out the real-time fax relaying in IP network has also obtained increasing application.Usually, the T.38 gateway of an end carries out demodulation with the modulation signal that connected facsimile machine sends, and demodulated data is packaged into the T.38 message of agreement regulation, issues the T.38 gateway of opposite end by IP network.Opposite end T.38 gateway parses data from the message that is received, and modulation is given and this opposite end facsimile machine of gateway T.38.Below simply introduce the process of Fax over IP.
At first be call establishment stage, by manually or automatically finishing calling, consistent with the calling procedure of IP phone.After call setup is finished, can carry out voice call.Calling terminal can manually be pressed the startup button of facsimile machine, sends the fax tone signal to called end, and called end can be heard " ticking " one.Next is facsimile machine capability negotiation and handshake phase, and this stage has entered the real fax stage, mainly finishes facsimile machine ability label, fax training and synchronous etc.Send digital identification signal (DIS) by the called end facsimile machine and carry out ability identification.Message reaches transfer phase synchronously, and it is synchronous to finish message, Error detection error correction and circuit monitoring.Simultaneously according to rules transfer files T.4, transmit according to regulations such as the modulation system of T4 definition, transmission time, transmission meanss.Message confirms the stage, mainly finishes message confirmation, multiple page documents supervention and fax completion signal.The release stage of facsimile call is according to fax completion signal or because network factors call release such as overtime.
In the whole facsimile posting, the reciprocal process of two class data messages is arranged, one of them is control signaling mutual of T.30 agreement regulation, is used for both sides' facsimile machine capability negotiation and shakes hands; Another one is an agreement view data T.4, the transmission of the facsimile signal that is used to scan.And T.38 agreement is that describe will be T.30 and the rule of packing data T.4.For data T.4, the mode of two kinds of encapsulation is arranged, specifically depend on the mode of operation of facsimile machine, i.e. error correction mode (ECM, Error Correction Mode) and non-error correction mode (non-ECM).Under error correction mode, the T.4 data that the transmit leg facsimile machine sends have error correction information, transmit the message that i.e. re-transmission makes mistakes after makeing mistakes in the facsimile posting; The communicating pair facsimile machine must all be supported the ECM ability, and fax just can enter ECM mode.And under the non-ECM pattern, T.4 view data is not with error correction information.
Fax over IP under the error correction mode can guarantee the quality of transmission data, but because it has adopted error correction mode, transmitting speed will reduce greatly, real-time also can descend, for IP network, the characteristics of itself maximum promptly are that transfer of data is reliable relatively but real-time is relatively poor, therefore, Fax over IP under most of users and the uncomfortable error correction mode, but more get used to and the stronger mode of real-time like the common fax class.But under agreement T.38, if the facsimile machine of receiving-transmitting sides is all supported ECM mode, then facsimile machine will inevitably be faxed by ECM mode.
Summary of the invention
In view of this, main purpose of the present invention is to provide the method and system of forbidding error correction mode in a kind of Fax over IP, can forbid that facsimile machine enters ECM mode, thereby improves the efficient of Fax over IP.
For achieving the above object, technical scheme of the present invention is achieved in that
Forbid the method for error correction mode in a kind of Fax over IP, comprising:
After receiving the error correction mode ability reporting information of debit's facsimile machine, in debit's facsimile machine gateway and the originating party facsimile machine gateway at least one judges according to described error correction mode ability reporting information whether described debit's facsimile machine supports the error correction mode ability, if support, transmit again after described error correction mode ability reporting information is revised as non-support error correction mode information.
Preferably, described error correction mode ability reporting information is carried by described numeral flag signal frame.
Preferably, described error correction mode ability reporting information is revised as non-support error correction mode information to be transmitted again, be specially: described debit's facsimile machine gateway is or/and originating party facsimile machine gateway is resolved described numeral flag signal frame, error correction mode ability label information in the parsing numeral flag signal frame is revised as non-support error correction mode identification information, regenerate verification and, with described verification and and non-support error correction mode identification information be encapsulated as the numeral flag signal frame once more and transmit.
Preferably, described error correction mode ability reporting information is carried by described numeral flag signal frame, is specially: the 27th the sign position of whether supporting the error correction mode ability as carrying debit facsimile machine of described numeral flag signal frame.
Preferably, between described debit's facsimile machine gateway and the originating party facsimile machine gateway based on the IP protocol communication, described originating party facsimile machine gateway is transmitted after described numeral flag signal frame is encapsulated as the IP packet when the described numeral flag signal frame of described debit's facsimile machine gateway forwards again.
Forbid the system of error correction mode in a kind of Fax over IP, comprising:
The error correction mode ability reports the unit, is used to report the information of the error correction mode ability of debit's facsimile machine;
Error correction mode ability judging unit is used for judging according to described error correction mode ability reporting information whether described debit's facsimile machine supports the error correction mode ability;
The information of error correction mode ability is revised the unit, is used for when described debit's facsimile machine is supported the error correction mode ability described error correction mode ability reporting information being revised as non-support error correction mode information; And
Retransmission unit, the information that is used to transmit described error correction mode ability judging unit or described error correction mode ability is revised the information of the error correction mode ability after the cell processing.
Preferably, described error correction mode ability reporting information is carried by described numeral flag signal frame; It is non-support error correction mode information that described error correction mode ability reporting information is revised in the information modification unit of described error correction mode ability, be specially: the error correction mode ability label information in the described numeral flag signal frame is revised as non-support error correction mode identification information, regenerate verification and, with described verification and and non-support error correction mode identification information be encapsulated as the numeral flag signal frame once more.The 27th the sign position of whether supporting the error correction mode ability as carrying debit facsimile machine of described numeral flag signal frame.
Preferably, the information of described error correction mode ability is revised the unit and is arranged at debit's facsimile machine gateway or/and originating party facsimile machine gateway.
The present invention is by detecting the error correction mode ability reporting information that debit's facsimile machine sends on the facsimile machine gateway, when definite debit's facsimile machine has the error correction mode ability, initiatively it is revised as and does not have the error correction mode ability information, be transmitted to the originating party facsimile machine again, like this, no matter whether the originating party facsimile machine has the error correction mode ability, all can not enter error correction mode in the facsimile posting, thereby improved the efficient of Fax over IP, reduced the time delay in the facsimile posting, strengthened the real-time of fax.
Description of drawings
Fig. 1 is for forbidding the flow chart of the method for error correction mode in the Fax over IP of first kind of embodiment of the present invention;
Fig. 2 is for forbidding the flow chart of the method for error correction mode in the Fax over IP of second kind of embodiment of the present invention;
Fig. 3 is for forbidding the structural representation of the system of error correction mode in the Fax over IP of the embodiment of the invention.
Embodiment
Basic thought of the present invention is: detect the error correction mode ability reporting information that debit's facsimile machine sends on the facsimile machine gateway, when definite debit's facsimile machine has the error correction mode ability, initiatively it is revised as and does not have the error correction mode ability information, be transmitted to the originating party facsimile machine again, like this, no matter whether the originating party facsimile machine has the error correction mode ability, all can not enter error correction mode in the facsimile posting, thereby improved the efficient of Fax over IP, reduce the time delay in the facsimile posting, increased the real-time of fax.
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Because technical solution of the present invention is the facsimile machine capability negotiation after call setup is finished and the improvement of handshake phase, therefore entire I P facsimile posting is repeated no more, and only improvement part is described in detail.
Fig. 1 as shown in Figure 1, forbids in the Fax over IP of first kind of embodiment of the present invention that the method for error correction mode may further comprise the steps for forbidding the flow chart of the method for error correction mode in the Fax over IP of first kind of embodiment of the present invention:
Step 101: debit's facsimile machine is packaged in the error correction mode ability information of its support and is sent to debit's facsimile machine gateway in the DIS frame.
Whether debit's facsimile machine will himself support the ability information of error correction mode to be packaged in the DIS frame, and is sent to the debit's facsimile machine gateway that is connected with this debit's facsimile machine network.Whether support the ability information of error correction mode to be packaged in the DIS frame debit's facsimile machine, be specially: the 27th in the DIS frame is debit's facsimile machine support error correction mode ability whether flag bit, if debit's facsimile machine is supported error correction mode, then the 27th in this DIS frame is " 1 ", otherwise is " 0 ".
Step 102: resolve after debit's facsimile machine gateway receives the DIS frame, judge whether debit's facsimile machine supports error correction mode,, then described DIS frame is carried out directly being sent to originating party facsimile machine gateway after the IP encapsulation if do not support; Otherwise, distort the DIS frame, make its indication debit facsimile machine not support error correction mode, regenerate the described DIS of distorting frame verification and, the DIS frame after distorting is carried out being sent to originating party facsimile machine gateway after the IP encapsulation.
Debit's facsimile machine gateway is resolved received DIS frame, whether the 27th that judges this DIS frame be " 1 ", " if 1 ", then show debit's facsimile machine support error correction mode, the 27th of this DIS frame distorted be " 0 ", and the DIS frame after distorting carried out cyclic redundancy check (CRC) (CRC again, CyclicRedundancy Check) calculates, the verification of the DIS frame after generation is distorted and, replace former verification and, the DIS frame after will distorting then carries out IP encapsulation and is sent to originating party facsimile machine gateway.If the 27th of the DIS frame that debit's facsimile machine gateway is received is " 0 ", show that then debit's facsimile machine do not support error correction mode, then directly this DIS frame is carried out being sent to originating party facsimile machine gateway after the IP encapsulation.
Step 103: originating party facsimile machine gateway parses the DIS frame from received DIS IP message, and is forwarded to the originating party facsimile machine.
Originating party facsimile machine gateway is resolved received IP message, parses the DIS frame, and the DIS frame that will resolve is sent to the originating party facsimile machine.The originating party facsimile machine is resolved the DIS frame, and extracts the value of the 27th of this DIS frame, owing to be " 0 ", shows that debit's facsimile machine do not support error correction mode, and in view of the above, the originating party facsimile machine determines that this fax does not adopt error correction mode, directly carries out the transmission of fax paper.
The embodiment of the invention is by detecting the ECM ability of debit's facsimile machine on debit's facsimile machine gateway, when debit's facsimile machine possesses the ECM ability, distorting its ability reports frame that it is designated as not possess the ECM ability, like this, no matter whether the originating party facsimile machine possesses the ECM ability, can both reach and forbid that the receiving-transmitting sides facsimile machine carries out the purpose of ECM fax.
Fig. 2 as shown in Figure 2, forbids in the Fax over IP of second kind of embodiment of the present invention that the method for error correction mode may further comprise the steps for forbidding the flow chart of the method for error correction mode in the Fax over IP of second kind of embodiment of the present invention:
Step 201: debit's facsimile machine is packaged in the error correction mode ability information of its support and is sent to debit's facsimile machine gateway in the DIS frame, and debit's facsimile machine gateway carries out described DIS frame to be sent to originating party facsimile machine gateway after the IP encapsulation.
In this step, debit's facsimile machine gateway does not carry out any detection to the DIS frame that debit's facsimile machine reports, but directly the DIS frame that it is received is encapsulated as the IP message, is forwarded to originating party facsimile machine gateway then.
Step 202: originating party facsimile machine gateway receives the DIS message, parses the DIS frame, this DIS frame is resolved again, and judges whether debit's facsimile machine supports error correction mode, if do not support, then described DIS frame directly is sent to the originating party facsimile machine; Otherwise, distort the DIS frame, make its indication debit facsimile machine not support error correction mode, regenerate the described DIS of distorting frame verification and, the DIS frame after distorting is sent to the originating party facsimile machine.
Originating party facsimile machine gateway is resolved received DIS message, obtain the DIS frame, again this DIS frame is further resolved, whether the 27th that judges this DIS frame be " 1 ", " if 1 ", then show debit's facsimile machine support error correction mode, the 27th of this DIS frame distorted be " 0 ", and the DIS frame after distorting carried out cyclic redundancy check (CRC) (CRC again, Cyclic Redundancy Check) calculates, the verification of the DIS frame after generation is distorted and, replace former verification and, the DIS frame after will distorting then is sent to the originating party facsimile machine.If the 27th of the DIS frame that originating party facsimile machine gateway is received is " 0 ", show that then debit's facsimile machine do not support error correction mode, then directly this DIS frame is sent to the originating party facsimile machine.
Step 203: the originating party facsimile machine is resolved after receiving the DIS frame, learns that debit's facsimile machine do not support error correction mode, directly carries out the transmission of fax paper.
The originating party facsimile machine is resolved received DIS frame, extracts the value of the 27th of this DIS frame, owing to be " 0 ", show that debit's facsimile machine do not support error correction mode, in view of the above, the originating party facsimile machine determines that this fax does not adopt error correction mode, directly carries out the transmission of fax paper.
Those skilled in the art are to be understood that, can on originating party facsimile machine gateway and debit's facsimile machine gateway, the detection of DIS frame and the method for distorting be set simultaneously, so more can guarantee forbidding of Fax over IP error correction mode, because the method that detects and distort is identical with the method in the previous embodiment, repeats no more here.
Fig. 3 is for forbidding the structural representation of the system of error correction mode in the Fax over IP of the embodiment of the invention, as shown in Figure 3, the system that forbids error correction mode in the Fax over IP of the embodiment of the invention comprises that the error correction mode ability reports the information of unit 30, error correction mode ability judging unit 31, error correction mode ability to revise unit 32 and retransmission unit 33, wherein, the error correction mode ability reports unit 30 to be used to report the information of the error correction mode ability of debit's facsimile machine.Whether debit's facsimile machine supports the ability information of error correction mode to be packaged in the DIS frame, specifically be to support error correction mode ability whether flag bit as debit's facsimile machine with the 27th in the DIS frame, if debit's facsimile machine is supported error correction mode, then the 27th in this DIS frame is " 1 ", otherwise is " 0 ".Error correction mode ability judging unit 31 is used for judging according to described error correction mode ability reporting information whether described debit's facsimile machine supports the error correction mode ability.Be that error correction mode ability judging unit 31 judges whether the 27th of the DIS frame be " 1 ", if " 1 " then shows debit's facsimile machine support error correction mode, otherwise do not support error correction mode.The information of error correction mode ability is revised unit 32 and is used for when described debit's facsimile machine is supported the error correction mode ability described error correction mode ability reporting information being revised as non-support error correction mode information.The information modification unit 32 of error correction mode ability is revised as non-support error correction mode identification information with the error correction mode ability label information of DIS frame, regenerate verification and, with described verification and and non-support error correction mode identification information be encapsulated as the numeral flag signal frame once more.Be about to the 27th of DIS frame and distort and be " 0 ", and the DIS frame after distorting is carried out CRC again calculate, generate the DIS frame after distorting verification and, replace former verification and.The information that retransmission unit 33 is used to transmit described error correction mode ability judging unit or described error correction mode ability is revised the information of the error correction mode ability after the cell processing.Retransmission unit 33 is used for not supporting the DIS frame of error correction mode to transmit the destination address of this DIS frame DIS frame after distorting or 31 judgements of error correction mode ability judging unit.
The information of error correction mode ability is revised unit 32 and is arranged at debit's facsimile machine gateway or/and in the originating party facsimile machine gateway.
Those skilled in the art are to be understood that, forbid in the Fax over IP of the present invention that each processing unit in the system of error correction mode can realize by software or relevant hardware circuit, about the function of each unit, can understand with reference to the associated description in the handling process among Fig. 1, Fig. 2.
Among the present invention,, all can not enter error correction mode in the facsimile posting no matter whether the originating party facsimile machine has the error correction mode ability, but adopt non-error correction mode to send, thereby improved the efficient of Fax over IP, reduced the time delay in the facsimile posting, strengthened the real-time of fax.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (9)
1, the method for forbidding error correction mode in a kind of Fax over IP is characterized in that, comprising:
After receiving the error correction mode ability reporting information of debit's facsimile machine, in debit's facsimile machine gateway and the originating party facsimile machine gateway at least one judges according to described error correction mode ability reporting information whether described debit's facsimile machine supports the error correction mode ability, if support, transmit again after described error correction mode ability reporting information is revised as non-support error correction mode information.
2, method according to claim 1 is characterized in that, described error correction mode ability reporting information is carried by described numeral flag signal frame.
3, method according to claim 2, it is characterized in that, described error correction mode ability reporting information is revised as non-support error correction mode information to be transmitted again, be specially: described debit's facsimile machine gateway is or/and originating party facsimile machine gateway is resolved described numeral flag signal frame, error correction mode ability label information in the parsing numeral flag signal frame is revised as non-support error correction mode identification information, regenerate verification and, with described verification and and non-support error correction mode identification information be encapsulated as the numeral flag signal frame once more and transmit.
4, according to claim 2 or 3 described methods, it is characterized in that, described error correction mode ability reporting information is carried by described numeral flag signal frame, is specially: the 27th the sign position of whether supporting the error correction mode ability as carrying debit facsimile machine of described numeral flag signal frame.
5, method according to claim 3, it is characterized in that, between described debit's facsimile machine gateway and the originating party facsimile machine gateway based on the IP protocol communication, described originating party facsimile machine gateway is transmitted after described numeral flag signal frame is encapsulated as the IP packet when the described numeral flag signal frame of described debit's facsimile machine gateway forwards again.
6, forbid the system of error correction mode in a kind of Fax over IP, it is characterized in that, comprising:
The error correction mode ability reports the unit, is used to report the information of the error correction mode ability of debit's facsimile machine;
Error correction mode ability judging unit is used for judging according to described error correction mode ability reporting information whether described debit's facsimile machine supports the error correction mode ability;
The information of error correction mode ability is revised the unit, is used for when described debit's facsimile machine is supported the error correction mode ability described error correction mode ability reporting information being revised as non-support error correction mode information; And
Retransmission unit, the information that is used to transmit described error correction mode ability judging unit or described error correction mode ability is revised the information of the error correction mode ability after the cell processing.
7, system according to claim 6 is characterized in that, described error correction mode ability reporting information is carried by described numeral flag signal frame; It is non-support error correction mode information that described error correction mode ability reporting information is revised in the information modification unit of described error correction mode ability, be specially: the error correction mode ability label information in the described numeral flag signal frame is revised as non-support error correction mode identification information, regenerate verification and, with described verification and and non-support error correction mode identification information be encapsulated as the numeral flag signal frame once more.
8, system according to claim 7 is characterized in that, the 27th the sign position of whether supporting the error correction mode ability as carrying debit facsimile machine of described numeral flag signal frame.
9, system according to claim 6 is characterized in that, the information of described error correction mode ability is revised the unit and is arranged at debit's facsimile machine gateway or/and originating party facsimile machine gateway.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102407642A CN101448060B (en) | 2008-12-23 | 2008-12-23 | Method and system for prohibiting error correction mode during IP faxing |
| PCT/CN2009/074184 WO2010072092A1 (en) | 2008-12-23 | 2009-09-24 | Method and system for ip fax |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102407642A CN101448060B (en) | 2008-12-23 | 2008-12-23 | Method and system for prohibiting error correction mode during IP faxing |
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| Publication Number | Publication Date |
|---|---|
| CN101448060A true CN101448060A (en) | 2009-06-03 |
| CN101448060B CN101448060B (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102407642A Expired - Fee Related CN101448060B (en) | 2008-12-23 | 2008-12-23 | Method and system for prohibiting error correction mode during IP faxing |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101448060B (en) |
| WO (1) | WO2010072092A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010072092A1 (en) * | 2008-12-23 | 2010-07-01 | 中兴通讯股份有限公司 | Method and system for ip fax |
| WO2014020433A1 (en) * | 2012-07-31 | 2014-02-06 | Alcatel Lucent | Method and gateway device for processing a fax call |
| CN104168401A (en) * | 2013-05-16 | 2014-11-26 | 佳能株式会社 | Reception end facsimile apparatus and control method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1129274C (en) * | 2001-07-25 | 2003-11-26 | 华为技术有限公司 | Speed-limiting IP fax method and gateway speed-limiting method in IP fax |
| KR100433629B1 (en) * | 2001-12-27 | 2004-05-31 | 주식회사 케이티 | Method for controlling errors of internet fax data |
| CN100359883C (en) * | 2003-10-24 | 2008-01-02 | 华为技术有限公司 | Method for realizing V.34 high-speed facsimile through T.38 protocol |
| JP4861764B2 (en) * | 2006-07-18 | 2012-01-25 | 株式会社リコー | FAX gateway device |
| CN101448060B (en) * | 2008-12-23 | 2010-12-29 | 中兴通讯股份有限公司 | Method and system for prohibiting error correction mode during IP faxing |
-
2008
- 2008-12-23 CN CN2008102407642A patent/CN101448060B/en not_active Expired - Fee Related
-
2009
- 2009-09-24 WO PCT/CN2009/074184 patent/WO2010072092A1/en active Application Filing
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010072092A1 (en) * | 2008-12-23 | 2010-07-01 | 中兴通讯股份有限公司 | Method and system for ip fax |
| WO2014020433A1 (en) * | 2012-07-31 | 2014-02-06 | Alcatel Lucent | Method and gateway device for processing a fax call |
| CN103581495A (en) * | 2012-07-31 | 2014-02-12 | 上海贝尔股份有限公司 | Fax call handling method and gateway device |
| CN103581495B (en) * | 2012-07-31 | 2016-08-10 | 上海贝尔股份有限公司 | Process method and the gateway device of facsimile call |
| CN104168401A (en) * | 2013-05-16 | 2014-11-26 | 佳能株式会社 | Reception end facsimile apparatus and control method thereof |
| US9723172B2 (en) | 2013-05-16 | 2017-08-01 | Canon Kabushiki Kaisha | Facsimile apparatus, control method thereof, and storage medium |
| CN104168401B (en) * | 2013-05-16 | 2018-07-27 | 佳能株式会社 | Receiving terminal picture unit and its control method |
| US10230868B2 (en) | 2013-05-16 | 2019-03-12 | Canon Kabushiki Kaisha | Facsimile apparatus, control method thereof, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101448060B (en) | 2010-12-29 |
| WO2010072092A1 (en) | 2010-07-01 |
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