JP2016012792A - Facsimile machine, control method of the same, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a facsimile machine capable of securely receiving facsimile even when a facsimile signal is delayed to arrive from an opposite machine, smoothly coordinating with an IP telephone, and improving convenience in use.SOLUTION: The facsimile machine, when calling an IP telephone by judging as a call, monitors a facsimile signal by continuously receiving a media stream transmitted from an opposite machine without holding.

Description

  The present invention relates to a facsimile apparatus, a control method therefor, and a program, and more particularly to a facsimile apparatus provided with a facsimile communication function and an IP telephone function based on a deemed voice method, a control method therefor, and a program.

  Since the facsimile apparatus performs communication using a telephone line, the telephone line is often shared between the telephone and the facsimile apparatus, and various functions and methods for switching between telephone call and facsimile communication have been proposed. There are methods for connecting and linking a facsimile machine and a telephone, such as those that are used by directly connecting the telephone to the facsimile machine, those that have a telephone function, and those that have a cordless handset.

  When the telephone and the facsimile are shared by one line, it is determined whether the operator or the facsimile apparatus is a telephone call or facsimile communication at the time of the incoming call, and the apparatus setting and the situation such as the operation mode are set between the telephone and the facsimile apparatus. It is common to operate by performing a corresponding switching operation. As various operation modes, there is an “answering machine connection mode” in which an answering machine is connected and whether the facsimile apparatus is in facsimile communication or not during answering machine answering. There is also a “manual reception mode” in which the operator receives a facsimile signal by manual operation after confirming the facsimile signal by answering with a telephone connected to the facsimile apparatus. Furthermore, there is an “automatic reception mode” in which a facsimile reception operation is started immediately after an incoming call, and a “FAX / TEL switching mode” in which a facsimile apparatus first responds to the incoming call and determines whether or not the communication is facsimile communication. .

  The “FAX / TEL switching mode” is a function for monitoring a facsimile signal for a certain period of time after answering an incoming call and switching between a telephone call and facsimile communication. If a facsimile signal can be detected during FAX / TEL switching, a facsimile reception operation is performed. If a facsimile signal cannot be detected, a call is made to a handset or telephone directly connected to the facsimile apparatus. These telephone and facsimile switching operations are switching operations between telephones directly connected to the facsimile apparatus, and switching operations between telephones and facsimile apparatuses that are internally connected to the same private branch exchange are not performed. Absent.

  In addition, IP telephones have become popular due to the spread of the Internet and intranets. The IP phone uses a call control protocol such as SIP (Session Initiation Protocol) to control generation, change, and disconnection of a session for real-time communication. In addition, voice processing is performed by encoding and compressing various voices using VoIP (Voice over Internet Protocol) technology, converting the voice into IP packets, and transmitting the IP packets in real time.

  In an enterprise, an IP-PBX (Internet Protocol-Private Branch eXchange) is installed to construct an extension IP network integrated with an intranet without connecting a dedicated telephone line and connect to a plurality of IP telephones. In the home, IP telephone services that can be used in the same way as general subscriber telephones are spreading. An IP telephone can be used by connecting to an analog telephone or IP telephone in the house via an ADSL line or optical line and a terminal adapter (TA) or a home gateway (HGW). These terminal adapters (TA) and home gateways (HGW) also use SIP and VoIP, and can be connected to multiple mobile phones using IP telephones or wireless LANs. Is available.

  Recently, a facsimile apparatus is connected via a terminal adapter (TA) or a home gateway (HGW) in a home IP telephone environment, and facsimile communication with a destination of an internal / external line is performed in the IP telephone environment. Is increasing. Since there are a plurality of connectable line interfaces and usable protocols, there are several types of facsimile apparatuses that can be used in these IP telephone environments. A G3 facsimile apparatus that performs facsimile communication via an IP network using a VoIP function of an analog port of a terminal adapter (TA) or a home gateway (HGW). A facsimile machine of an assumed voice method in which a facsimile apparatus itself has a VoIP function and performs voice encoding / decoding and IP packetization by connecting to a terminal adapter (TA) or a home gateway (HGW) via a LAN. Similarly, it is possible to connect to a LAN and convert a G3 facsimile signal into an IP message and transmit it in real time to perform communication at a higher speed than the G3 facsimile. There are 38 real-time Internet facsimile machines.

  An IP telephone or a deemed voice facsimile apparatus acquires the IP address of a communication partner via SIP via IP-PBX or a home gateway (HGW), and performs P2P communication with the communication partner. The type of data such as voice and video transmitted and received in P2P is determined as a media type by SIP negotiation. The media type includes audio (m = audio), video (m = video), image (m = image), other (m = application), and the like.

  T. T. et al. In communication with a 38-system real-time Internet facsimile, an image (m = image) or other (m = application) is used. On the other hand, both voice calls (m = audio) media type are used in IP telephone calls and assumed voice facsimile communication. For this reason, it is difficult to determine at the time of an incoming call whether it is a call or an assumed voice type facsimile communication, and it is necessary to monitor the facsimile signal in the call state after the incoming call.

  In this way, even in an environment using an IP network, a function for distinguishing between telephone communication and facsimile communication is necessary as in the case of a conventional analog telephone line. In the case of facsimile communication, a technology for switching between telephone call and facsimile communication is required, in which facsimile reception processing by a deemed voice method is performed, and in the case of a telephone call, call processing can be performed at an arbitrary telephone terminal in the same IP telephone environment.

  A technique has been proposed in which when a facsimile apparatus in a home IP network receives an incoming call, a mobile IP phone is made to ring based on a set reception mode by determining whether the call is a call or facsimile communication (see Patent Document 1). ). This prior art does not have a function of directly connecting a handset or a child phone to the own device. Then, if the facsimile signal is not detected within a certain time after answering the incoming call, the call is shifted to the hold state, and the call to the IP telephone is started by notifying the IP telephone in the home IP network of the INVITE message, and switching between the telephone call and the facsimile is performed. Is to do.

JP 2010-178044 A

However, in the prior art,
1. Since the media stream from the caller is put on hold while the IP phone is ringing, the call voice and communication sound from the caller are not notified, and even if a facsimile signal is sent from the caller during the call, the facsimile reception Can not do.

  2. When it is determined that the call is a call, the IP telephone in the home IP network is called, but the prior art does not have a means for directly connecting an analog telephone such as a handset or a slave telephone to the facsimile apparatus. Not considering the phone call.

  The present invention has been made to solve the above problems. That is, it is an object of the present invention to provide a technique that can reliably receive a facsimile even when a facsimile signal from a partner machine is delayed and can be smoothly linked to an IP telephone, thereby improving usability.

  In order to achieve the above object, a facsimile apparatus according to the present invention is a facsimile apparatus having a facsimile communication function based on a deemed voice method, and is capable of performing a call or facsimile communication by monitoring a facsimile signal for a predetermined time after answering an incoming call. A determination unit for determining whether there is a facsimile communication when the determination unit determines that the communication is a facsimile communication, and an IP network installed in the IP network when the determination unit determines that the call is a call. When a call is made by the calling means for calling the telephone and the call is judged by the determining means and the IP telephone is called, the media stream sent from the other party is continuously received without being held and the facsimile signal is monitored. And monitoring means for performing the above.

  According to the present invention, while the IP telephone is being called, the media stream from the partner machine is continuously received without being held and the facsimile signal is monitored, so that the facsimile signal from the partner machine is delayed due to manual transmission or the like. Even if it comes, facsimile reception can be surely performed.

1 is a block diagram showing a schematic configuration of a facsimile apparatus according to an embodiment of the present invention and connection with an IP public network. FIG. 3 is a sequence diagram when IPFAX set to “FAX / TEL switching mode” detects a CNG signal while calling an IP telephone and performs facsimile communication by deemed voice communication when a facsimile is received in the communication environment of FIG. 1. . FIG. 3 is a sequence diagram when an IPFAX set in “FAX / TEL switching mode” is determined to be a call when a facsimile call is received in the communication environment of FIG. 1 and a response call is made with a telephone connected to an analog port. FIG. 3 is a sequence diagram when the IPFAX set in the “FAX / TEL switching mode” is determined to be a call when a facsimile is received in the communication environment of FIG. 1 and the call is transferred to the IP phone. 10 is a flowchart showing a flow of processing executed by IPFAX set to “FAX / TEL switching mode” when an incoming call is answered.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  In the present embodiment, a description will be given of a process in which the IPFAX set to the “FAX / TEL switching mode” detects a CNG signal while calling an IP telephone and performs facsimile communication based on deemed voice communication.

  FIG. 1 is a block diagram showing a schematic configuration of a facsimile apparatus according to an embodiment of the present invention and connection with an IP public network (NGN).

  In FIG. 1, IPFAX1_100 and IPFAX2_150 are assumed voice communication type facsimile apparatuses composed of blocks described below.

  The CPU 101 is a system control unit and controls the entire apparatus.

  The ROM 102 stores a control program for the CPU.

  The RAM 103 is configured by an SRAM or the like, and stores data that needs to be backed up, such as device setting information and image data management information.

  The image memory 104 is composed of a DRAM or the like, and is used for storing image data.

  The resolution conversion processing unit 105 performs resolution conversion control such as milli-inch resolution conversion of raster data.

  A reading / recording coding / decoding processing unit (reading / recording codec) 106 performs coding / decoding processing of image data handled by the communication apparatus.

  The clock unit 107 is used for an application for measuring time and is configured by an IC or the like.

  The digital modem 108 modulates a procedure signal and image data from the apparatus. The audio encoding processing such as 711 is performed, and the digital data is sent to the IP network as digital data without performing the digital-analog conversion processing performed by the analog modem.

  SLIC (Subscriber Line Interface Circuit) 109 is G. Analog-to-digital conversion processing and telephone line emulation by voice codec such as 711 are performed. An analog telephone can be connected to the IP network without going through a telephone line by SLIC, and a function for emulating a telephone line such as a telephone line (switch) call signal and generation of various tone signals can be provided.

  The analog telephone 110 is an analog telephone such as a handset or an answering machine used for a call.

  The LAN_I / F 111 is a LAN I / F for controlling the network.

  The image processing unit 112 performs correction processing on the image data read by the scanner and outputs high-definition image data.

  The sheet scanner 113 and the book scanner 114 are configured by a CS image sensor, a document transport mechanism, and the like, and optically read a document and convert it into electrical image data. Scan double-sided originals.

  The operation unit 115 includes a keyboard, a display unit, and the like, and is used by an operator to perform various input operations.

  The line buffer 116 is a line buffer used when image data transfer control is performed.

  The print buffer 117 is a buffer memory for one page for storing print character codes.

  The printer unit 118 is a printer engine such as LBP that records received images and file data on plain paper, and can perform double-sided recording.

  The LAN 200 indicates an intranet in a company or a home IP network (IP network).

  The IP telephone 201 is a telephone that can be used on an IP network that is controlled so that it can be used as an extension telephone by the home gateway HGW1_301.

  NGN 300 represents a public IP network.

  The home gateways HGW1_301 and HGW2_302 are gateway devices that connect NGN, which is a public IP network, and a LAN, and function as an IP telephone connected to the LAN and an IPFAX call control server.

  FIG. 2 shows a case where IPFAX1_100 set to the “FAX / TEL switching mode” detects a CNG signal during calling of the IP telephone 201 and performs facsimile communication by deemed voice communication when a facsimile is received in the communication environment of FIG. FIG.

  When a facsimile transmission operation with deemed voice is performed on IPFAX2_150 in IPFAX2_150, an INVITE request (session establishment request) of media type audio is transmitted from IPFAX2_150 (T101). The INVITE request for the media type audio passes through the NGN 300 via the HGW 2_302, and is notified from the NGN 300 to the IPFAX 1_100 in the home via the HGW 1_301 (T102).

  Note that the description of the HGW 2_302 and NGN 300 in the middle of the communication path between the IPFAX 2_150 and the HGW 1_301 is omitted because only SIP messages and data are relayed.

  Upon receiving the INVITE request, IPFAX1_100 transmits a provisional response (100 Trying) indicating that the incoming call processing is being performed and a provisional response (180 Ringing) indicating that the call is being performed. However, in the “FAX / TEL switching mode”, when a facsimile signal for a certain period of time after the audio session is established cannot be detected, the call processing is performed after the call is determined to be a call. No call processing is performed. IPFAX1_100 sends a success response (200 OK) to the incoming call (T103) to notify that a call or reception is possible.

  When IPFAX2_150 receives the success response (200 OK) (T104), sends an ACK signal, and IPFAX1_100 receives the ACK signal (T105), a state in which the media type audio session is established (A in the figure) Become.

  If a facsimile signal (CNG signal) from IPFAX 2_150 cannot be detected after the session is established until the call start time, IPFAX 1_100 determines that the call is in progress, and calling processing to IP telephone 201 and analog telephone 110 is started. Here, IPFAX1_100 transmits an INVITE request to IP telephone 201 in order to call IP telephone 201 installed in the home IP network (T107). At this time, IPFAX1_100 is already connected to IPFAX2_150, but IPFAX1_100 starts calling IP telephone 201 without holding IPFAX2_150. In the hold process, the direction of the media description part of the UPDATE request is designated as “transmission direction only (a = sendonly)”. The direction of the media description part of the success response (200 OK) is notified that “only the reception direction (a = recvonly)” is notified, thereby limiting the media stream. If the hold process is performed here, the media stream from IPFAX2_150 is stopped and the CNG signal from IPFAX2_150 cannot be detected. Therefore, the hold process is not performed and an INVITE request is sent to IP phone 201 as a new call. Yes.

  Upon receiving the INVITE request, IP phone 201 transmits a temporary response (100 Trying) indicating that the incoming call is being processed or a temporary response (180 Ringing) indicating that the call is being performed (T108), and generates a ringing tone. Let it ring.

  IPFAX1_100 calls an IP telephone by sending an INVITE request to IP telephone 201, and at the same time, calls an analog telephone 110 connected to its own analog port. While the IP telephone 201 and the analog telephone 110 connected to the analog port are being called, a CNG signal from the IPFAX2_150 is detected (T109). Then, IPFAX1_100 notifies the IP telephone 201 of a CANCEL request in order to stop the calling process to the IP telephone 201 (T110).

  Upon receiving the CANCEL request, IP phone 201 transmits 487 Request Terminated indicating that INVITE has been canceled (T111).

  The IPFAX1_100 that has received 487 Request Terminated transmits an ACK signal (T112), and the IP telephone 201 receives the ACK signal, ends the incoming call processing, and enters a standby state.

  Also, IPFAX1_100 stops calling the analog telephone 110 connected to the analog port, and proceeds to facsimile reception processing (T113) based on CNG signal detection.

  When the facsimile reception is completed, a disconnection process including sending a BYE signal and receiving a success response (200 OK) to the BYE is performed, and the process ends (T114).

  FIG. 3 shows a case where IPFAX1_100 set to the “FAX / TEL switching mode” is determined to be a call when a facsimile is received to the home IP network in the communication environment of FIG. 1, and a response call is made with a telephone connected to the analog port. FIG.

  IPFAX1_100 determines that the call is a call after the elapse of the call time from the incoming call response, and starts a process of simultaneously calling analog telephone 110 and IP telephone 201 connected to the analog port. Since the processing from receiving the INVITE request (session establishment request) to the provisional response (180 Ringing) to the IP telephone 201 is the same as that in FIG. 2, description thereof is omitted (T101 to T108 in FIG. 2 and FIG. 3). T201 to T208 are similar processes).

  While calling the analog telephone 110 and the IP telephone 201 connected to the analog port, the operator responds by off-hooking the analog telephone 110. Then, IPFAX1_100 notifies the IP telephone 201 of a CANCEL request in order to stop the calling process to the IP telephone 201 (T209).

  Upon receiving the CANCEL request, IP phone 201 transmits 487 Request Terminated indicating that INVITE has been canceled (T210).

  The IPFAX1_100 that has received 487 Request Terminated transmits an ACK signal (T211), and the IP telephone 201 receives the ACK signal, ends the incoming call processing, and enters a standby state.

  Also, IPFAX1_100 stops calling the analog telephone 110 connected to the analog port, and shifts to a call state (T212) with IPFAX2_150.

  When the call is finished, a disconnection process consisting of sending a BYE signal and receiving a success response (200 OK) to the BYE is performed and finished (T213).

  FIG. 4 is a sequence diagram when IPFAX1_100 set to the “FAX / TEL switching mode” is determined to be a call when a facsimile is received to the home IP network in the communication environment of FIG. is there.

  After the calling time has elapsed after IPFAX1_100 responds to the incoming call, it is determined that the call is a call, and processing for simultaneously calling the analog telephone 110 and the IP telephone 201 connected to the analog port is started. Since the processing from receiving the INVITE request (session establishment request) to the provisional response (180 Ringing) to the IP telephone 201 is the same as in FIG. 2, the description thereof is omitted (T101 to T108 in FIG. 2 and FIG. 4). T301 to T308 are similar processes).

  When the operator responds to the IP telephone 201 call and off-hooks the handset of the IP telephone 201, the IP telephone 201 sends a success response (200 OK) to notify that the call is possible. When IPFAX1_100 receives the success response (200 OK), the calling process to the analog telephone 110 connected to the analog port is stopped and an ACK signal is transmitted. When IP telephone 201 receives the ACK signal, a session of media type audio is established (B in FIG. 4), and a call state is established (T308).

  If IP telephone 201 is found to be able to make a call in response, IPFAX1_100 transfers the connection with IPFAX2_150 to IP telephone 201, and proceeds with the process so that IPFAX2_150 and IP telephone 201 are in a call state.

  The IPFAX1_100 transmits the REFER request to the IPFAX2_150 via the HGW so that the IPFAX2_150 transmits the INVITE request to the IP telephone 201 specified by the Refer-To header of the REFER request (T309). The REFER request is an extended SIP request and can be instructed to send an INVITE request to another SIP terminal.

  When the IPFAX2_150 receives the REFER request, the IPFAX2_150 returns a 202 Accepted response and transmits a NOTIFY request indicating that the transfer is in progress.

  When the IPFAX1_100 receives the NOTIFY request and confirms that the transfer is in progress, the IPFAX1_100 transmits a success response (200 OK) to the NOTIFY request (T310).

  The IPFAX2_150 transmits an INVITE request instructing the IP telephone to replace the connection specified by the dialog ID (Call-ID) in the Replaces header to the IP telephone that is the destination specified by the REFER request (T311).

  The IP telephone 201 that receives the INVITE request in response to the REFER request instruction performs a process of replacing the already held connection with the IPFAX 1_100 with the connection indicated by the dialog ID of the newly established Replaces header.

  The IP telephone 201 establishes an audio session (from B to C in FIG. 4) with IPFAX2_150 in order to replace the specified dialog and new connection (T312: session establishment procedure is the same as T101 to T105). A session of media type audio is established between IPFAX2_150 and the IP telephone (C in FIG. 4) and enters a call state (T315).

  IPFAX1_100 sends a BYE request to release an audio session with IPFAX2_150. Then, a success response (200 OK) to the BYE request is received, and the audio session (A in FIG. 4) with the IPFAX2_150 is terminated (T313).

  The IP telephone 201 transmits a BYE request to release the dialog designated by the Replaces header. And the success response (200 OK) with respect to a BYE request is received, and the audio session (B of FIG. 4) with IPFAX1_100 is complete | finished (T314).

  FIG. 5 is a flowchart showing a flow of processing executed by IPFAX1_100 set to “FAX / TEL switching mode” when a facsimile is received to the home IP network. This process is realized by the CPU 101 executing it according to a program stored in the ROM 102.

  When IPFAX1_100 receives the INVITE request (YES in step S101), IPFAX1_100 establishes an audio session between the own device and the transmission source (the partner device) (step S102). After the session is established, the CPU 101 initializes a call start flag for starting the call start timer and the line capture timer and determining whether the call is being called (step S103). The call start timer monitors the CNG signal for a certain period of time after IPFAX1_100 and IPFAX2_150 are connected. When the CNG signal is not detected, it is determined that the incoming call is an incoming call, and the time until the analog telephone 110 connected to the own analog port 110 or the IP telephone 201 in the home IP network starts to be called is determined. It is timed. The line acquisition timer measures the time for finally releasing the connection when the CNG signal is detected after the session is established or when there is no response from the analog telephone 110 and the IP telephone 201 connected to the analog port.

  Until the line capture timer expires, the call start timer and the call start flag are monitored (step S104), and the hook state of the analog telephone 110 connected to the analog port is monitored (step S108). Similarly, monitoring of the CNG signal from the partner machine (step S113) and monitoring of the response of the IP telephone 201 that made the call (step S117) are performed.

  If the call start flag is off in step S104 and the call start timer has expired (step S104-YES), the CPU 101 determines that there is no call because there is no CNG signal for a certain period of time. Then, the calling start flag is turned on, a pseudo calling signal is output from the analog port of the own device, and processing for ringing the connected telephone is started (step S105). At the same time, the CPU 101 transmits an INVITE request to the IP telephone 201 in order to call the IP telephone 201 installed in the home IP network (step S106). At this time, IPFAX1_100 is already connected to IPFAX2_150, but IPFAX1_100 starts calling IP telephone 201 without holding IPFAX2_150. As a result, the media stream from the IPFAX 1_100 is not restricted even while the INVITE request is transmitted to the IP telephone and the call processing is performed, so that the CNG signal can be detected.

  On the other hand, if NO in step S104, the process proceeds to step S107.

  In step S107, when detecting the off-hook of the analog telephone 110 connected to the analog port of the own device (step S107-YES), the CPU 101 stops sending the pseudo calling signal to the analog telephone 110 (step S108). Then, a CANCEL request is transmitted to the IP telephone being called (step S109). Then, the CPU 101 stops the calling process of the IP telephone and enters a call state using the analog telephone 110 connected to the analog port of the own apparatus (step S110).

  On the other hand, in the case of step S107-NO, the process proceeds to step S112.

  When receiving the CNG signal from the partner machine in step S112 (step S112-YES), the CPU 101 determines that the facsimile communication is performed, and stops sending the pseudo call signal to the analog telephone 110 (step S113). Then, a CANCEL request is transmitted to the IP telephone being called (step S114), the calling process of the IP telephone is stopped, and facsimile reception by deemed voice communication is performed (step S115). When the facsimile reception is completed, a disconnection process (step S111) including sending a BYE signal and receiving a success response (200 OK) to the BYE is performed and the process ends.

  On the other hand, in the case of step S112-NO, the process proceeds to step S116.

  When the success response (200 OK) to the INVITE request (step S107) transmitted to the IP telephone 201 in step S116 is received (step S116-YES), the sending of the pseudo call signal to the analog telephone 110 is stopped (step S117). . Then, an ACK signal is transmitted to the IP telephone, and after establishing a connection between the IPFAX 1_100 and the IP telephone, a transfer process (step S118) for switching the connection to the connection with the IPFAX 2_150 is performed, and a call state (step S119) is obtained. . After the call process is completed, the disconnection process (step S111) including sending a BYE signal and receiving a success response (200 OK) to the BYE is performed, and the process ends.

  On the other hand, in the case of step S116-NO, the process proceeds to step S120.

  When the line capture timer expires in step S120 (step S120-YES), the CPU 101 stops sending the pseudo call signal to the analog telephone 110 (step S121). Then, a CANCEL request is transmitted to the IP telephone being called (step S122). Then, the CPU 101 stops the calling process of the IP telephone, performs a disconnection process (step S111) including sending a BYE signal and receiving a success response (200 OK) to the BYE, and ends the process.

  According to the above-described embodiment, the following effects can be expected for a facsimile apparatus having a facsimile communication function based on a voice system that is regarded as an analog port to which an analog telephone can be connected. In other words, while the IP telephone is ringing, the media stream from the partner machine is continuously received without being held and the facsimile signal is monitored, so that even if the facsimile signal from the partner machine is delayed due to manual transmission, etc. Facsimile reception can be performed.

  In addition, when a call is determined to be made, the IP phone is called and the analog phone connected to the analog port is sounded, so that both the IP phone and the analog phone connected to the analog port can be smoothly linked to each other. Improvement can be expected.

  The present invention can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, or the like) of the system or apparatus reads the program. It is a process to be executed.

100 IPFAX1
101 CPU
110 Analog phone 150 IPFAX2
201 IP Phone 300 NGN (Next Generation Network)
301 Home gateway HGW1
302 Home gateway HGW2

Claims (8)

A facsimile apparatus having a facsimile communication function based on a deemed voice method,
A determination means for determining whether the call is a facsimile communication or not by monitoring a facsimile signal at a predetermined time after an incoming call response;
Facsimile communication means for performing facsimile communication when the determination means determines facsimile communication;
Calling means for calling an IP telephone set in an IP network when the determination means determines that the call is a call;
A monitoring means for monitoring the facsimile signal by continuously receiving the media stream sent from the partner machine without holding when the call is determined to be a call by the determination means and calling the IP telephone;
A facsimile apparatus comprising: An analog port that can be connected to an analog telephone,
2. The facsimile apparatus according to claim 1, further comprising a first control unit that causes an analog telephone connected to the analog port to ring when the determination unit determines that the call is a call.   When the IP telephone answers the call, the analog telephone connected to the analog port stops ringing, and the transfer is performed by sending a REFER request to the other machine to instruct the IP telephone to send an INVITE request. 3. The facsimile apparatus according to claim 2, further comprising: a second control unit configured to perform communication between the partner machine and the IP telephone.   When the analog telephone connected to the analog port responds to the call, the call is stopped by sending a CANCEL request to the IP telephone, and the analog telephone connected to the analog port connected to the other unit is placed in a call state. 4. The facsimile apparatus according to claim 2, further comprising a control unit.   If it is determined that the facsimile communication is performed after ringing the analog telephone connected to the analog port, the ringing of the analog telephone is stopped and the calling process to the IP telephone is stopped and the facsimile reception process is executed. The facsimile apparatus according to any one of claims 2 to 4, further comprising a fourth control unit.   6. The apparatus according to claim 2, further comprising fifth control means for stopping the calling of the IP telephone when an off-hook of the analog telephone connected to the analog port is detected. Facsimile machine. A method for controlling a facsimile apparatus having a facsimile communication function based on a deemed voice method,
A determination step of determining whether the communication is a telephone call or facsimile communication by monitoring a facsimile signal at a fixed time after an incoming call response;
A facsimile communication step of performing facsimile communication when it is determined in the determination step that facsimile communication;
A calling step for calling an IP telephone set in the IP network when the call is determined in the determination step;
A monitoring step of monitoring a facsimile signal by continuously receiving a media stream sent from a partner device without holding when the IP telephone is called in the determination step and calling the IP telephone;
A method for controlling a facsimile apparatus, comprising: The program for functioning a computer as each means of the facsimile apparatus of any one of Claims 1 thru | or 6.

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