CN111669475A - Fax system response method, fax system and storage medium - Google Patents
Fax system response method, fax system and storage medium Download PDFInfo
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- CN111669475A CN111669475A CN202010374008.XA CN202010374008A CN111669475A CN 111669475 A CN111669475 A CN 111669475A CN 202010374008 A CN202010374008 A CN 202010374008A CN 111669475 A CN111669475 A CN 111669475A
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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
- H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N1/32106—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title separate from the image data, e.g. in a different computer file
- H04N1/32117—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title separate from the image data, e.g. in a different computer file in a separate transmission or protocol signal prior to or subsequent to the image data transmission, e.g. in digital identification signal [DIS], in non standard setup [NSS] or in non standard field [NSF]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/102—Gateways
- H04L65/1033—Signalling gateways
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/80—Responding to QoS
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- General Engineering & Computer Science (AREA)
- Facsimiles In General (AREA)
- Telephonic Communication Services (AREA)
- Facsimile Transmission Control (AREA)
Abstract
The invention discloses a fax system response method, a fax system and a storage medium, wherein the method comprises the following steps: the IMS interactive end receives the calling signaling, acquires the information of the calling end and the called end, and sends first negotiation information to the calling end gateway according to the information of the calling end and the called end; the calling gateway receives a calling signaling and the first negotiation information, preprocesses the calling signaling according to the first negotiation information to generate a compensation signal, and sends the compensation signal to the called gateway; the called gateway detects the compensation signal and then transmits the compensation signal to a called terminal; the called end sends a response signaling to the calling end gateway through the called end gateway; and the calling end gateway processes the response signaling and then sends the processed response signaling to the calling end. The invention solves the problem of incompatibility of fax signaling of a calling terminal and a called terminal by preprocessing calling signaling coding into a compensation signal and forwarding the compensation signal.
Description
Technical Field
The present invention relates to the field of telephone exchange fax, and in particular, to a fax system response method, a fax system and a storage medium.
Background
In a traditional telephone system, the establishment of the t.38 fax usually initiates a fax call based on fax call tones of fax terminal devices at both ends of a transceiver, then reports a fax event by detecting a fax signal and notifies a call service layer to trigger signaling negotiation, and then switches to a t.38 fax working mode.
For a specific telephone switching system, such as a t.38 fax system and a t.30 fax system, since CNG and CED signaling in t.38 protocol signaling indicate that they are not compatible with fax call tones of the t.30 system (for example, CNG and CED are both signaling messages, CNG is a period signal with 0.5s connection and 3 s silence in the t.38 fax system, and CED is a tone signal with 2.6-4 s, the current telephone switching system does not support the interchange function of t.38 fax call signaling and t.30 tone signal), the problem that fax tones are blocked when t.38 and t.30 are connected occurs, and thus fax calls cannot be established, and finally fax failure occurs.
Thus, the prior art has yet to be improved and enhanced.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a fax system response method, a fax system and a storage medium, which solve the problem of incompatibility of fax signaling of a calling terminal and a called terminal by preprocessing calling signaling codes into compensation signals and forwarding the compensation signals.
In order to achieve the purpose, the invention adopts the following technical scheme:
a facsimile system answering method, comprising the steps of:
the IMS interactive end receives the calling signaling, acquires the information of the calling end and the called end, and sends first negotiation information to the calling end gateway according to the information of the calling end and the called end;
the calling gateway receives a calling signaling and the first negotiation information, preprocesses the calling signaling according to the first negotiation information to generate a compensation signal, and sends the compensation signal to the called gateway;
the called gateway detects the compensation signal and then transmits the compensation signal to a called terminal;
the called end sends a response signaling to the calling end gateway through the called end gateway;
and the calling end gateway processes the response signaling and then sends the processed response signaling to the calling end.
The first negotiation information comprises a preset speech coding algorithm type of the called terminal.
The steps that the calling end gateway receives a calling signaling and the first negotiation information, preprocesses the calling signaling according to the first negotiation information to generate a compensation signal, and sends the compensation signal to a called end gateway comprise:
the calling gateway receives a calling signaling and the first negotiation information;
pre-coding the calling signaling according to the preset voice coding algorithm;
and modulating according to the pre-coded calling signaling to generate a compensation signal and sending the compensation signal to the called end gateway.
The step that the called terminal sends a response signaling to the calling terminal gateway through the called terminal gateway comprises the following steps:
after receiving the compensation signal, the called end identifies a start signal;
generating a first response signaling according to the initiating signal and transmitting the first response signaling to a gateway of a called terminal;
and the called gateway encodes the first response signaling according to a preset language coding algorithm, generates a second response signaling and forwards the second response signaling to the calling gateway.
The step of sending the response signaling to the calling terminal after the calling terminal gateway processes the response signaling comprises the following steps:
the calling end gateway decodes the second response signaling according to the preset voice coding algorithm to obtain a first response signaling;
judging whether the first response signaling meets the requirement of a preset called end procedure or not;
and if so, transcoding the first response signaling into a third response signaling meeting the specification of the calling terminal, and sending the third response signaling to the calling terminal.
The calling signaling is a calling signaling message or calling tone.
The first response signaling, the second response signaling and the third response signaling are called signaling messages or response tones.
The compensation signal is a signaling message or a single tone signal.
A facsimile system comprising:
the calling terminal is used for sending a calling signaling and receiving a response signaling;
and the IMS interactive terminal is used for receiving the calling signaling, acquiring the information of the calling terminal and the called terminal according to the calling signaling and sending first negotiation information to the gateway of the calling terminal.
The calling end gateway is used for preprocessing according to the calling signaling and the first negotiation information to generate a compensation signal and sending the compensation signal to the called end gateway;
the called end gateway is used for transmitting the compensation signal to a called end or coding and transmitting the first response signaling to the calling end gateway;
and the called terminal is used for receiving the compensation information or sending the first response signaling.
A computer readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the steps in the facsimile system answering method as described above.
Compared with the prior art, the fax system response method, the fax system and the storage medium provided by the invention comprise the following steps: the IMS interactive end receives the calling signaling, acquires the information of the calling end and the called end, and sends first negotiation information to the calling end gateway according to the information of the calling end and the called end; the calling gateway receives a calling signaling and the first negotiation information, preprocesses the calling signaling according to the first negotiation information to generate a compensation signal, and sends the compensation signal to the called gateway; the called gateway detects the compensation signal and then transmits the compensation signal to a called terminal; the called end sends a response signaling to the calling end gateway through the called end gateway; and the calling end gateway processes the response signaling and then sends the processed response signaling to the calling end. The invention solves the problem of incompatibility of fax signaling of a calling terminal and a called terminal by preprocessing calling signaling coding into a compensation signal and forwarding the compensation signal.
Drawings
FIG. 1 is a flow chart of a fax system response method provided by the present invention;
FIG. 2 is a flow chart of the fax system response method S200 according to the present invention;
FIG. 3 is a flow chart of a fax system response method S400 step;
fig. 4 is a flow chart of a facsimile system response method S500 step;
fig. 5 is a functional block diagram of a facsimile system according to the present invention.
Detailed Description
In view of the problems in the prior art, the invention provides a fax system response method, a fax system and a storage medium, which solve the problem that fax signaling of a calling terminal and a called terminal is incompatible by preprocessing calling signaling codes into compensation signals and forwarding the compensation signals.
The embodiments of the present invention are intended to explain technical concepts of the present invention, technical problems to be solved, technical features constituting technical solutions, and technical effects to be brought about in more detail. The embodiments are explained below, but the scope of the present invention is not limited thereto. Further, the technical features of the embodiments described below may be combined with each other as long as they do not conflict with each other.
In the prior art, when different operators use different fax systems, because the specifications of two sets of fax systems are different, for example, a t.38 fax system and a t.30 fax system, during docking, if signal conversion cannot be performed, the problem of fax signal interception or fax call failure easily occurs.
In view of the above problems in the prior art, referring to fig. 1, the present invention provides a fax system response method, comprising the steps of:
s100, the IMS interactive end receives the calling signaling, acquires the information of the calling end and the called end, and sends first negotiation information to the calling end gateway according to the information of the calling end and the called end.
In specific implementation, in this embodiment, the calling terminal initiates a fax call and sends a calling signaling to the IMS interactive terminal and the calling terminal gateway. And after receiving the calling signaling, the IMS interactive terminal acquires information of the calling terminal and the called terminal, generates first negotiation information and sends the first negotiation information to the calling terminal. Specifically, the first negotiation information includes a preset speech coding algorithm type of the called terminal. It should be noted that when the calling terminal and the called terminal are the same fax system, the preset voice coding algorithm types of the calling terminal and the called terminal are the same, so fax is performed according to the original fax standard; when the calling end and the called end are different systems, the calling signaling can be coded by an algorithm according with the regulation of the called end, and the fax can be normally carried out.
S200, the calling gateway receives a calling signaling and the first negotiation information, preprocesses the calling signaling according to the first negotiation information to generate a compensation signal, and sends the compensation signal to the called gateway.
In this embodiment, the gateway at the calling end is configured to process a response signaling fed back by the calling end or the called end. When a calling party initiates a calling party, after receiving a calling party signaling and the first negotiation information, processing the calling party signaling according to the first negotiation information, and sending a compensation signal obtained after processing to a called party gateway.
Specifically, referring to fig. 2, the step S200 includes:
s201, a calling gateway receives a calling signaling and the first negotiation information;
s202, precoding a calling signaling according to the preset voice coding algorithm;
s203, modulating according to the calling signaling after precoding, generating a compensation signal and sending the compensation signal to the called end gateway.
In specific implementation, in this embodiment, after receiving the calling signaling and the first negotiation information, the calling gateway obtains a preset speech coding algorithm type of the called terminal, and performs precoding on the calling signaling according to the preset speech coding algorithm, that is, performs coding in a coding format of the called terminal. And finally, modulating according to the pre-coded calling signaling, modulating the calling signaling into a compensation signal which accords with the procedure of a called end, and sending the compensation signal to a gateway of the called end in an RTP (real time protocol) flow mode. The compensation signal is a calling signaling which accords with the procedure of the called terminal, and the fax response of the called terminal can be triggered through the compensation signal.
And S300, the gateway of the called terminal detects the compensation signal and then transmits the compensation signal to the called terminal.
In this embodiment, the called gateway can detect the compensation signal, and the called gateway detects the compensation signal and then transmits the compensation signal to the called terminal.
S400, the called end sends a response signaling to the gateway of the calling end through the gateway of the called end.
In this embodiment, after receiving the compensation signal transmitted from the gateway of the called end, the called end recognizes that a device has a fax request initiated, so that the called end needs to respond to the calling end, generate a response signaling to be transmitted to the gateway of the called end, and forward the response signaling to the calling end after being processed by the gateway of the called end.
Specifically, referring to fig. 3, the step S400 includes:
s401, after receiving the compensation signal, the called end identifies a start signal;
s402, generating a first response signaling according to the initiating signal and transmitting the first response signaling to a gateway of a called terminal;
and S403, the called gateway encodes the first response signaling according to a preset language coding algorithm, generates a second response signaling and forwards the second response signaling to the calling gateway.
In specific implementation, in this embodiment, after receiving the supplementary signal transmitted by the gateway of the called end, the called end identifies the initiation signal of the calling end according to the supplementary signal, and then generates the first response signaling according to the initiation signal, and transmits the first response signaling to the gateway of the called end. The first acknowledgement signaling is generated based on the procedure of the called end. In order to avoid that the efficiency of the remote transmission process is too low, the signaling needs to be encoded and compressed, so the called gateway encodes the first response signaling according to a preset speech encoding algorithm of the called, generates a second response signaling after encoding and compression, and forwards the second response signaling to the calling gateway.
And S500, the calling terminal gateway processes the response signaling and then sends the processed response signaling to the calling terminal.
In this embodiment, the gateway at the calling end mainly performs decoding and judgment, identifies the content of the second response signaling through decoding, judges whether the content meets the schedule requirement of the called end, and sends the second response signaling to the calling end after the judgment is successful.
Specifically, referring to fig. 4, the step S500 includes:
s501, the calling terminal gateway decodes the second response signaling according to the preset voice coding algorithm to obtain a first response signaling;
s502, judging whether the first response signaling meets the requirement of the preset called end procedure;
and S503, if the first answer signaling is in accordance with the first answer signaling, transcoding the first answer signaling into a third answer signaling in accordance with the procedure of the calling end, and sending the third answer signaling to the calling end.
In this embodiment, the called gateway decodes the second response signaling according to the preset speech coding algorithm to obtain the first response signaling again. Identifying the first response signaling, and judging whether the first response signaling conforms to the procedure of the called terminal response signaling; if yes, transcoding the first response signaling into a third response signaling meeting the response signaling procedure of the calling end, so that the calling end can identify. And after the calling terminal receives the third response signaling, completing response handshake of the calling terminal and the called terminal, and entering the next process. Since other fax processes are prior art, they are not improved by the present invention, and therefore, they will not be described in detail herein.
It should be noted that, in the embodiment of the present invention, the calling signaling is a calling signaling message or a calling tone; the first response signaling, the second response signaling and the third response signaling are called signaling messages or response tones; the compensation signal is a signaling message or a single tone signal. The invention realizes the mutual conversion of two different fax system signaling, so that different fax systems can carry out fax without obstacles.
In order to make the technical solution of the present invention easier to understand, the following takes t.38 fax system and t.30 fax system as examples for explanation:
because the t.38 fax initiation signaling CNG (calling signaling) and CED (response signaling) are only one signaling message, and CNG in the t.30 fax system is a period signal (calling tone) with 0.5s connection and 3 s silence, and CED is a tone signal (response tone) with 2.6-4 s, when the CNG and the CNG are transmitted, conversion between the signaling message and the voice signal is required, otherwise, the conversion cannot be realized.
Firstly, a T.38 fax device is used as a calling terminal to initiate a fax request to a T.30 fax device, and the T.38 fax device sends calling signaling to a T.38 gateway. The T.38 gateway analyzes the preset voice coding type of the T.30 fax device according to the information of the T.38 fax device and the T.30 fax device acquired by the IMS interactive terminal, modulates the calling signaling into a compensation signal (a single tone signal consistent with the calling voice type) consistent with the calling voice type according to the preset voice coding type, and then sends the compensation signal to the T.30 gateway. Since the type of the compensation signal is consistent with the type of the calling tone, 0 t.30 gateway can detect the compensation signal and forward the compensation signal to the t.30 fax device. After receiving the compensation signal, the t.30 fax device responds to a single tone signal (i.e., an answer tone, the first answer signaling mentioned above) with a frequency of 2100Hz for 2.6 seconds to 4 seconds and sends the signal to the t.30 gateway. After receiving the response tone, the t.30 gateway encodes the response tone and sends the encoded response tone to the t.38 gateway (the second response signaling described above). And the T.38 gateway receives the coded response tone and then decodes the response tone, then judges whether the response tone conforms to the regulation of the T.30 fax system, and if so, converts the response tone into a response signaling of the T.38 fax system and then sends the response signaling to the T.38 fax device, thus finishing the fax response. In summary, the present invention converts the control signaling between different fax systems to implement the response between different fax devices, thereby solving the problem of incompatible fax signaling between the calling end and the called end.
Based on the above fax system response method, please refer to fig. 5, the present invention further provides a fax system, including: a calling end 100, configured to send a calling signaling and receive a response signaling; an IMS interactive terminal 500, configured to receive a calling signaling, obtain information of a calling terminal 100 and a called terminal 400 according to the calling signaling, and send first negotiation information to a calling terminal gateway 200; the calling gateway 200 is configured to perform preprocessing according to the calling signaling and the first negotiation information to generate a compensation signal, and send the compensation signal to the called gateway 300; the called gateway 300 is configured to transmit the compensation signal to the called 400, or encode the first response signaling and send the encoded first response signaling to the calling gateway 200; the called end 400 is configured to receive the compensation information or send the first acknowledgement signaling. Since the interaction method of the facsimile system has been described in detail above, it will not be described in detail herein.
Based on the true system response method, the invention also provides a computer readable storage medium which can be a memory. The logic instructions of the true system response method described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand-alone product.
The memory, which is a computer-readable storage medium, may be configured to store a software program, a computer-executable program, such as program instructions or modules corresponding to the methods in the embodiments of the present disclosure. The processor executes the functional application and data processing by executing the software program, instructions or modules stored in the memory, that is, implements the method in the above embodiments.
The memory may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory. For example, a variety of media that can store program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, may also be transient storage media.
The computer readable storage medium stores one or more programs, which are executable by one or more processors to implement the steps in the facsimile system answering method as described above.
In summary, the fax system response method, the fax system and the storage medium provided by the present invention include the steps of: the IMS interactive end receives the calling signaling, acquires the information of the calling end and the called end, and sends first negotiation information to the calling end gateway according to the information of the calling end and the called end; the calling gateway receives a calling signaling and the first negotiation information, preprocesses the calling signaling according to the first negotiation information to generate a compensation signal, and sends the compensation signal to the called gateway; the called gateway detects the compensation signal and then transmits the compensation signal to a called terminal; the called end sends a response signaling to the calling end gateway through the called end gateway; and the calling end gateway processes the response signaling and then sends the processed response signaling to the calling end. The invention solves the problem of incompatibility of fax signaling of a calling terminal and a called terminal by preprocessing calling signaling coding into a compensation signal and forwarding the compensation signal.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (10)
1. A facsimile system answering method, comprising the steps of:
the IMS interactive end receives the calling signaling, acquires the information of the calling end and the called end, and sends first negotiation information to the calling end gateway according to the information of the calling end and the called end;
the calling gateway receives a calling signaling and the first negotiation information, preprocesses the calling signaling according to the first negotiation information to generate a compensation signal, and sends the compensation signal to the called gateway;
the called gateway detects the compensation signal and then transmits the compensation signal to a called terminal;
the called end sends a response signaling to the calling end gateway through the called end gateway;
and the calling end gateway processes the response signaling and then sends the processed response signaling to the calling end.
2. The fax system answering method according to claim 1, wherein the first negotiation information includes a preset vocoding algorithm type of the called terminal.
3. The fax system response method according to claim 2, wherein the step of receiving the calling signaling and the first negotiation information by the calling gateway, preprocessing the calling signaling according to the first negotiation information to generate a compensation signal, and sending the compensation signal to the called gateway comprises:
the calling gateway receives a calling signaling and the first negotiation information;
pre-coding the calling signaling according to the preset voice coding algorithm;
and modulating according to the pre-coded calling signaling to generate a compensation signal and sending the compensation signal to the called end gateway.
4. The fax system response method according to claim 3, wherein the step of the called side sending the response signaling to the calling side gateway through the called side gateway comprises:
after receiving the compensation signal, the called end identifies a start signal;
generating a first response signaling according to the initiating signal and transmitting the first response signaling to a gateway of a called terminal;
and the called gateway encodes the first response signaling according to a preset language coding algorithm, generates a second response signaling and forwards the second response signaling to the calling gateway.
5. The fax system response method according to claim 4, wherein the step of processing the response signaling by the calling gateway and then sending the processed response signaling to the calling comprises:
the calling end gateway decodes the second response signaling according to the preset voice coding algorithm to obtain a first response signaling;
judging whether the first response signaling meets the requirement of a preset called end procedure or not;
and if so, transcoding the first response signaling into a third response signaling meeting the specification of the calling terminal, and sending the third response signaling to the calling terminal.
6. The fax system answering method according to claim 5, wherein the caller signaling is a caller signaling message or a caller tone.
7. The fax system response method according to claim 5, wherein the first response signaling, the second response signaling and the third response signaling are called signaling messages or response tones.
8. The fax system response method according to claim 5, wherein the compensation signal is a signaling message or a tone signal.
9. A facsimile system, comprising:
the calling terminal is used for sending a calling signaling and receiving a response signaling;
and the IMS interactive terminal is used for receiving the calling signaling, acquiring the information of the calling terminal and the called terminal according to the calling signaling and sending first negotiation information to the gateway of the calling terminal.
The calling end gateway is used for preprocessing according to the calling signaling and the first negotiation information to generate a compensation signal and sending the compensation signal to the called end gateway;
the called end gateway is used for transmitting the compensation signal to a called end or coding and transmitting the first response signaling to the calling end gateway;
and the called terminal is used for receiving the compensation information or sending the first response signaling.
10. A computer-readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the steps of the fax system response method according to any one of claims 1 to 8.
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