Method and system for prohibiting error correction mode during IP faxing

An error correction mode, IP fax technology, applied in the direction of using the return channel for error prevention/detection, electrical components, image communication, etc., can solve the problems of real-time performance degradation, transmission speed reduction, poor real-time performance, etc., to reduce delay , improve efficiency, and enhance real-time effects
CN101448060AInactive Publication Date: 2009-06-03ZTE CORP

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2009-06-03
Estimated Expiration
Not applicable ยท inactive patent

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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.
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Description

technical field

[0001] The invention relates to a method and a system for prohibiting an error correction mode in Internet Protocol (IP, Internet Protocol) fax. Background technique

[0002] With the development of the Internet, the T.38 protocol for real-time fax relay on the IP network has also been more and more used. Generally, the T.38 gateway at one end demodulates the modulated signal sent by the fax machine connected to it, encapsulates the demodulated data into a message specified in the T.38 protocol, and sends it to the T.38 gateway at the opposite end through the IP network. gateway. The opposite end T.38 gateway parses out the data from the received message, and modulates it to the fax machine of the opposite end T.38 gateway. The following briefly introduces the process of IP fax.

[0003] The first is the call establishment stage, which is completed manually or automatically, which is consistent with the call process of IP phones. After the call is establi...

Claims

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