KR20060046943A - Facsimile receiving method for each subscriber in private branch exchange - Google Patents

Abstract

The present invention relates to a fax receiving method of a private exchange comprising: allocating a general telephone number and a fax receiving telephone number to all subscribers subscribed to the private exchange; When the call is received by the private exchange to which the general telephone number and the fax receiving telephone number are assigned for each subscriber, the control unit determines whether the incoming call is a fax call or a general telephone call; If it is determined by the control unit that the call is received after the above step, the call is processed through a normal call reception process. If the call is a fax call, the T.38 of the DSP is operated to store the received fax data to the HDD and then receive the fax data to the subscriber. And notifying.

The present invention can maximize all of the trunk line of the private exchange as long as the DSP resource of the private exchange with the built-in fax server function allows, thereby maximizing the fax reception capability, and assigning a separate fax number to each subscriber, thereby allowing individual reception. It is possible to distinguish data easily and confidentiality is possible.

Private Exchange, Fax, DSP, HDD, T.38, Image File

Description

Receive fax by subscriber in private exchange {FACSIMILE RECEIVING METHOD FOR EACH SUBSCRIBER IN PRIVATE BRANCH EXCHANGE}

1 is a block diagram illustrating a private exchange for explaining a receiving method according to the present invention;

2 is a flowchart illustrating a receiving method according to the present invention.

♧ description of the symbols for the main parts of the drawing ♧

10 .... private exchange 20 .... citation board

30..extension board 40 .... control part

42 .... DSP 44 .... CPU

46 .... HDD

The present invention relates to a fax receiving method of a private exchange, and more particularly, it is possible to easily receive, select, store, and print a fax by assigning a fax receiving number for each subscriber without having a separate fax server. The present invention relates to a subscriber-specific fax reception method in a private exchange.

In general, a private branch eXchange is a function of connecting a trunk line and an extension of each other by a telephone line (or trunk line) of an on-site exchange facility and a transfer switching section. It is a telephone exchange system that automatically shares a number of external telephone lines with all employees and automatically connects telephones among internal users connected to the extension.

In addition, FAX (Fax: Facsimile) decomposes still images such as texts, diagrams, and photographs into pixels and transmits them to electric signals, and transmits them permanently in the form of original pictures at the receiving point. The communication method of obtaining an image.

Conventionally, in order to transmit fax data using a fax, transmission and reception faxes are used in connection with a public telephone network (PSTN) as well as a public telephone network and an exchange (national exchange, private exchange or key phone). System is used.

However, in the general method using only public telephone network, a port corresponding to a specific telephone number must be provided for receiving a fax, and a fax machine must be connected to this port. Otherwise, an expensive fax server must be purchased and installed separately. This is inconvenient to do.

In addition, in the case of using a public telephone network and an exchange, in particular, a private exchange together, the SLT (Solid Logic Technology) or a dedicated line must be partially allocated from the private exchange, so the simultaneous reception capability of the fax is greatly limited.

In addition, since the fax must be used jointly, it is cumbersome to separate the received data by individual, and furthermore, the confidentiality of the data to be received only by a specific individual is not guaranteed.

The present invention was created in view of the above-described problems of the prior art as described above, and can be maximized without the need to purchase and install expensive fax equipment by using an additional function of the private exchange. In addition, the purpose is to provide a subscriber-specific fax reception method in a private exchange so that accessibility and confidentiality can be guaranteed.

In order to achieve the above technical problem, the present invention comprises the steps of: allocating a general telephone number and a fax receiving telephone number to all subscribers subscribed to a private exchange; When the call is received by the private exchange to which the general telephone number and the fax receiving telephone number are assigned for each subscriber, the control unit determines whether the incoming call is a fax call or a general telephone call; If it is determined by the control unit that the call is received after the above step, the call is processed through a normal call reception process. If the call is a fax call, the T.38 of the DSP is operated to store the received fax data to the HDD and then receive the fax data to the subscriber. It is characterized by providing a subscriber-specific fax reception method in a private exchange configured to include the step of notifying.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a block diagram of a private exchange for explaining a receiving method according to the present invention, Figure 2 is a flow chart illustrating a receiving method according to the present invention.

First, a private exchange usually includes a subscriber circuit, a trunk line circuit, a switching circuit, a control circuit, a dual tone complex frequency (DTMF) receiver, a DTMF generator, a tone generator, a ring generator, and a memory section.

The present invention uses the DSP (Digital Signal Processor) 42 and the memory (hereinafter referred to as "HDD: Hard Disk") 46 among a plurality of the above circuits and devices as appropriate, and in particular, DSP One of the resources is T.38 (Internet Fax Function).

In addition, there are various DSP resources such as DTMF, R2, CID, and VoIP.

DSP is a microprocessor composed of a single integrated circuit (IC) chip that performs signal processing by digital operation. It is a dedicated microprocessor that greatly improves the structure of general purpose microprocessor and pursues high speed operation and compactness. Digital commonly used in voice and communication systems such as speech synthesis, speech recognition, speech coding, compression, medium and high speed modems, echo cancellation, etc., such as freer transform, calculation of correlation function, encoding, modulation, differentiation, integration, and adaptive signal processing. It is a signal processing device.

T.38 refers to the real-time Internet fax transmission method. It is a function that enables fax data communication through the Internet gateway by entering an IP address through the Internet.

That is, the trunk line board 20, the extension board 30, and the controller 40 are provided in the private exchange 10 of the present invention.

The trunk line board 20 is a line for receiving a fax, and the extension board 30 is a line connecting internal subscribers, and a plurality of internal subscriber terminals 32 are connected.

The controller 40 is composed of a DSP 42, a CPU 44, and an HDD 46. The DSP 42 receives fax data from the trunk line board 20 and uses the T.38 function to provide the CPU 44. The CPU 44 is connected to convert the transmitted information into a specific format, such as an image file format, on the HDD 46 by internal signal control.

In addition, the CPU 44 is provided to enable internet communication via a LAN, which enables communication via an Internet connection not shown by a predetermined protocol.

In addition, the devices or devices used in the present invention are not newly implemented, but are configured to implement a fax function by appropriately controlling the functions included in the devices mounted in the existing private exchange 10.

Furthermore, the fax reception data in the form of a specific image file stored in the HDD 46 can be directly checked by the user through a web connection or an e-mail via a LAN, and the selected fax reception data can be checked by the user's own PC. Or it can be printed and stored through the printer is natural.

Next, the present invention will be described in detail with reference to FIG. 2.

In the process of receiving a fax, as shown in FIG. 2, first, a general telephone number and a fax receiving telephone number are allocated to all subscribers subscribed to the private exchange 10 (S100).

At this time, the quota can use all the trunk lines of the private exchange 10 as long as the DSP resource permits.                     

After that, when the call is received, the control unit 40 determines whether the call is a fax call or a general phone call (S101, S102).

As a result of the determination, the normal telephone call is controlled in accordance with the general telephone reception processing method, and the fax telephone is activated with the T.38 function of the DSP 42 (S102, S110, S103).

When T.38 is activated, the CPU 44 of the control unit 40 controls to store the message reported from the DSP 42 in the HDD 46 (S104).

Subsequently, the controller 40 determines whether the reception of the fax is completed again, and if the reception of the fax is not completed, continuously operates the T.38 of the DSP 42 and stores the message reported from the DSP 42 to the HDD 46. To continue the operation, and if the reception of the fax is completed, the call is terminated (S105, S106).

When the call ends, the CPU 44 of the control unit 40 converts the fax data stored in the HDD 46 into a specific image file (S107).

In this case, the image file may be a format that can be identified by a general viewer program. For example, the image file may be a file format of various types such as JPG, JPEG, GIF, and TIF as well as an image file of a bitmap format.

In addition, the file format is preferably set by an internal appointment when setting up the private exchange 10.

When the fax data is converted into a predetermined image file, the control unit 40 individually notifies the subscriber that the fax data has been finally received and ends the reception of the fax (S108).                     

In this case, a method of notifying whether a fax is received may be variously set internally, but, for example, a fax may be notified through an e-mail form or a message wait function of a subscriber station.

Through such a process, it is possible to receive a fax for each subscriber by using the private exchange 10.

In addition, if the subscriber is notified that the fax has been received, the procedure for checking the fax data is described below.

Since the process of confirming the fax data is very diverse, only a few methods will be listed here in an exemplary form.

That is, a message indicating that the fax data is received to the subscriber through the control unit 40 of the private exchange 10 arrives, and the corresponding subscriber confirms this.

At this time, if the notification message is in the form of an e-mail and the fax data is received in the form of an attachment, the fax data can be checked by directly opening the corresponding fax data, that is, through a specific viewer program that can open an image file.

In this case, the subscriber can check received fax data in real time directly from his PC, and can edit variously such as deleting, printing, and storing.

If the subscriber checks the fax reception message and then accesses the private exchange 10 via the web via his PC and then checks the received fax data directly, the subscriber has the Windows Explorer embedded in his PC. After accessing the private exchange 10 through a web browsing program such as the above, the subscriber's ID, password, etc. can be input to check, edit, and download the received fax data through the system authentication process. .

Such a confirmation process is merely exemplary and, as described above, may be variously modified in any manner within the scope of the technical spirit of the present invention.

As described in detail above, the present invention can maximize the fax receiving ability by using all the CO lines of the private exchange as long as the DSP resource of the private exchange having the built-in fax server function allows, and allows the subscriber to separately set the fax number. Since it can be individually received because it can be assigned, it is easy to distinguish data and has confidentiality.

Claims (4)

Allocating a general telephone number and a fax receiving telephone number to all subscribers subscribed to the private exchange respectively; When the call is received by the private exchange to which the general telephone number and the fax receiving telephone number are assigned for each subscriber, the control unit determines whether the incoming call is a fax call or a general telephone call; If it is determined by the control unit that the call is received after the above step, the call is processed through a normal call reception process. If the call is a fax call, the T.38 of the DSP is operated to store the received fax data to the HDD and then receive the fax data to the subscriber. Method of receiving a fax per subscriber in a private exchange comprising a step of notifying. The method according to claim 1, In the fax data receiving notification step, the CPU of the control unit further comprises the step of converting the fax data stored in the HDD into a specific image file. The method according to claim 1, In the fax data receiving notification step, the fax data is notified in the form of being attached to the e-mail fax reception method for each subscriber in the private exchange. The method according to claim 1, And after receiving the fax data receiving notification step, the subscriber receiving the fax data through the web, connected to a private exchange through the web, and checking, outputting, downloading, and editing the fax data after authentication. Subscriber-specific fax reception method in a private exchange characterized in that.

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