JPH10271307A - Communication procedure shifting method and communication terminal equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the shift time from a V.8 cession starting procedure (V.8 procedure) to an individual procedure. SOLUTION: As shown in Fig. (a), a calling station sends an individual procedure shift signal indicating a shift to the individual procedure during the execution of the V.8 procedure, in response to an ANSam signal (deformed answer tone) from a response station. At the time of receiving the individual procedure shift signal from the calling station, the response station absorbs the sending of the ANSam signal and sends a response signal. Both the calling station receiving the response signal and the response station sending the response signal are shifted to the individual procedure. Thus the V.8 procedure is directly shifted to the individual procedure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication procedure shift method and a communication terminal device, and more particularly, to ITU-T Recommendation V.3. V.8 between communication terminal devices capable of executing a session start procedure according to V.8. Communication procedure transition method from session start procedure to original procedure according to ITU-T Recommendation V.8 And a communication terminal device capable of executing a session start procedure according to No. 8.

[0002] ITU-T stands for International Te
lecommunications Union−Telecommunications Standar
dization Sector, meaning the Telecommunication Standardization Sector of the International Telecommunication Union.

[0003] The calling station means a communication terminal apparatus on the calling side, and the answering station means a communication terminal apparatus to which a call is made by the calling station.

[0004] In the present specification, various signals described in Table 1 below are represented by corresponding abbreviations.

[0005]

[Table 1]

Further, among the above signals, ITU-T Recommendation V. 8 will be described.

[0007] The modified response tone (ANSam signal) is a cosine signal of 2100 Hz subjected to amplitude modulation. More specifically, the cosine waveform signal of 2100 ± 1 Hz is 450
The phase is inverted at an interval of ± 25 milliseconds, and a further 15 ± 0.
The amplitude is modulated by a cosine waveform of 1 Hz. The amplitude of the envelope of the modulated waveform should have a long-term average amplitude in the range of (0.8 ± 0.01) to (1.2 ± 0.01).

The calling menu signal (CM signal) is a signal transmitted from the communication terminal device (calling station) on the calling side,
Used primarily to indicate the modulation scheme available at the calling station. This CM signal is in accordance with Recommendation V. 21 defined in the low-frequency channel V.21. 300 bp modulated by 21 (L)
s is repeated. More specifically, one CM signal is composed of ten “1s” followed by one “1”.
Beginning with a 0-bit synchronization code, in the first information category in the CM signal, the desired calling function is displayed according to a predetermined calling function category. In addition, the CM signal must include one or more octets indicating the modulation modes available at the calling station.

[0009] The common menu signal (JM signal) is a signal transmitted from the communication terminal device (response station) on the called side.
It is mainly used to indicate the modulation scheme that can be commonly used by the calling station and the answering station. This JM signal is described in Recommendation V.
21 defined in the high-frequency channel V.21. It is composed of a repetitive bit string of 300 bps modulated by 21 (H). More specifically, one JM signal starts with ten "1s" followed by a 10-bit synchronization code,
In the first information category in the JM signal, the received CM
The same calling function as the signal is displayed. However, if the calling function is unavailable at the answering station, a different calling function may be displayed in the JM signal. Also, the JM signal is C
An octet indicating all the modulation modes available in the answering station among the modulation modes used in connection with the calling function indicated by the CM signal while being the modulation mode indicated by the M signal. Have to be there.

[0010] The CM terminator (CJ signal) is a signal indicating confirmation of detection of the JM signal and termination of the CM signal. This CJ signal has a V.P. of 300 bps. It is modulated by 21 (L) and is composed of three consecutive "0" octets including a start bit and a stop bit.

The call indicating signal (CI signal) is a signal transmitted from the calling station to indicate a general communication function, and is transmitted from the calling station at regular ON / OFF intervals. The on-period must include at least three or more CI signals and have a duration of no more than 2.0 seconds. The off period must be between 0.4 seconds and 2.0 seconds in duration. One CI signal is composed of ten "1" s, followed by a 10-bit synchronization code, and a calling function octet. The signal in the ON period is described in Recommendation V. 21 defined in the low-frequency channel V.21. 30 modulated by 21 (L)
It is composed of a repeating bit string of 0 bps.

[0012]

2. Description of the Related Art Conventionally, ITU-T has 3
2 (standard for 2-wire full duplex modems up to 9600 bps)
2880 over 14400 bps
The standard of a two-wire full-duplex modem up to 0 bps is V. 34. Thereafter, the above V.I. ITU-T is a standard that applies to the communication procedures of facsimile machines.
Recommendation T. 30 ANNEXF has been established.

This ITU-T Recommendation T. 30 ANNEXF specifies that a terminal should follow a session start procedure (V.8) for data transmission recommended by the ITU-T as a communication start procedure.

However, conventionally, V.I. No method was defined for directly transitioning from the session start procedure of No. 8 to a unique procedure.

For this reason, V.V. In order to shift from the 8 procedure to the original procedure, ITU-T Recommendation T.8 30 ANNEXF. 8 to V.8. 34 procedure. It was necessary to shift to a proprietary procedure according to the rules of 30.

As described above, conventionally, it was necessary to go through two steps. The transition from 8 procedures to the original procedure took time.

[0017]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. It is an object of the present invention to provide a communication terminal device and a communication procedure transition method capable of shortening the transition time from the session start procedure to the unique procedure of the eighth embodiment.

[0018]

In order to achieve the above object, a communication procedure transition method according to a first aspect of the present invention is an ITU-T communication method.
Recommendation V. 8 between communication terminal devices capable of executing a session start procedure according to V.8. 8 is a communication procedure transition method for transitioning from a session start procedure according to V.8 to a unique procedure. At a predetermined timing during the execution of the session start procedure according to 8, a unique procedure shift signal instructing the shift to the unique procedure is sent from the calling station to the answering station, and the unique procedure shift signal is received by the answering station; At each of the responding station that has received the unique procedure transition signal and the calling station that has transmitted the unique procedure transition signal, each of the responding stations transmits the V.1 signal. 8 to a unique procedure.

Further, the communication procedure transition method according to the second invention is described in ITU-T Recommendation V.3. 8 between communication terminal devices capable of executing a session start procedure according to V.8. 8 is a communication procedure transition method for transitioning from the session start procedure to the original procedure according to No. 8, wherein the original information means transition to the original procedure while the modified response tone from the answering station is being received by the calling station. Is transmitted from the calling station to the answering station from the calling station to the answering station, and when the answering station receives the calling menu signal including the unique information, the answering station contains the unique information indicating transition to the unique procedure. A common station signal is transmitted from the answering station to the calling station, and the calling station that receives the common menu signal including the unique information and the answering station that transmits the common menu signal including the unique information are transmitted to the calling station. V. 8 to a unique procedure.

Further, a communication terminal device according to a third aspect of the present invention comprises:
ITU-T Recommendation V. 8. A communication terminal device capable of executing a session start procedure according to V.8. Transition signal transmitting means for transmitting, to a responding station, a unique procedure transition signal for instructing a transition to a unique procedure at a predetermined timing when the session start procedure according to No. 8 is being executed as a calling station; When the unique procedure shift signal is sent out by the means, And a calling-side transition control means for controlling transition from a session start procedure according to No. 8 to a unique procedure.

Further, a communication terminal device according to a fourth aspect of the present invention comprises:
ITU-T Recommendation V. 8. A communication terminal device capable of executing a session start procedure according to V.8. A transition signal receiving means for receiving a unique procedure transition signal for instructing a transition to a unique procedure when the session start procedure according to No. 8 is executed as a response station; If received, the V.1 is received. And a response-side shift control unit that controls to shift from a session start procedure according to No. 8 to a unique procedure.

Further, a communication terminal device according to a fifth aspect of the present invention comprises:
ITU-T Recommendation V. 8. A communication terminal device capable of executing a session start procedure according to V.8. As a calling station in the session start procedure in accordance with No. 8, while receiving the modified response tone from the answering station, a signal transmission for sending a calling menu signal including unique information indicating transition to the unique procedure to the answering station. And a common menu signal corresponding to the calling menu signal including the unique information sent by the signal sending means. And a calling-side control means for controlling a transition from the session start procedure according to the above-mentioned 8 to the original procedure.

Further, a communication terminal device according to a sixth aspect of the present invention comprises:
ITU-T Recommendation V. 8. A communication terminal device capable of executing a session start procedure according to V.8. Signal receiving means for receiving a call menu signal including unique information indicating a transition to a unique procedure while transmitting a modified response tone to the calling station as a responding station in a session start procedure according to E.8.
When the call receiving menu signal including the unique information indicating the transition to the unique procedure is received by the signal receiving unit, the calling station issues a common menu signal including the unique information indicating the shift to the unique procedure. To the above V. And a response-side control unit for controlling a transition from the session start procedure according to the above-mentioned 8 to the original procedure.

In the communication procedure shifting method according to the first aspect, 8 (hereinafter referred to as V.8)
At a predetermined timing during the execution of the procedure, the calling station sends a unique procedure transition signal instructing the transition to the unique procedure from the calling station to the answering station. The predetermined timing may be, for example, a timing when the calling station is receiving an ANSam signal from the answering station.

Then, the calling station sends the unique procedure transition signal, and Move from 8 procedures to original procedure. One of the responding stations receives the unique procedure transition signal from the calling station, and Move from 8 procedures to original procedure.

As described above, the calling station sends the unique procedure shift signal to the answering station, and the answering station receives the unique procedure shifting signal. You can move directly from 8 procedures to your own procedure.

As a result, V.V. When a transition is made from the original procedure to the original procedure, the ITU-T Recommendation T.8 is used as in the past. 30 A
Once V.N. 8 to V.8. 34 procedure. There is no need to shift to a unique procedure according to the rules of 30. That is, V. It is now possible to directly shift from the 8 procedure to the original procedure. The transition time from eight procedures to a unique procedure can be reduced.

After transmitting the unique procedure transition signal from the calling station to the responding station, a predetermined response signal is transmitted from the responding station to the calling station as a response to the unique procedure transition signal. After receiving the signal, the process may shift to the original procedure.

Next, in the communication procedure shift method according to the second invention, During the execution of the eight procedures, while a modified response tone (ANSam signal) from the answering station is being received by the calling station, a calling menu signal (UCM signal) including unique information indicating transition to the unique procedure is generated. The call is sent from the calling station to the answering station.
By receiving the UCM signal, the answering station can recognize the instruction to shift to the original procedure by the calling station.

Further, the answering station sends a common menu signal (UJM signal) including unique information indicating transition to the unique procedure to the calling station as a response to the calling station. By receiving the UJM signal, the calling station can recognize that the responding station has responded to the instruction to shift to the unique procedure.

Each of the calling station that has received the UJM signal and the answering station that has transmitted the UJM signal, Move from 8 procedures to original procedure.

As described above, the UCM signal is transmitted from the calling station to the responding station, and the UJM signal is transmitted from the responding station as a response to the UCM signal, so that both the calling station and the responding station can smoothly operate with good timing. V. You can move directly from 8 procedures to your own procedure.

That is, as in the conventional ITU-T Recommendation T. 3
0 VNN according to ANNEXF. 8 to V.8. 34 procedure. Since there is no need to shift to a unique procedure according to the rules of V.30, The transition time from eight procedures to a unique procedure can be reduced.

By the way, in order to execute the above-described communication procedure shifting method according to the first invention, the communication terminal device according to the third invention described below is used as a calling station, and the communication terminal device according to the fourth invention is used. May be applied to each responding station.

That is, in the calling station as the communication terminal apparatus according to the third invention, At the predetermined timing during execution of the eight procedures, a unique procedure transition signal for instructing the transition to the unique procedure is transmitted to the responding station by the transition signal transmitting means. Here, the transmission of the unique procedure transition signal causes the calling side transition control means to transmit the V.110 signal. Control is performed to shift from 8 procedures to the original procedure.

On the other hand, in the answering station as the communication terminal device according to the fourth invention, While performing 8 steps,
When the transition signal receiving means receives a unique procedure transition signal for instructing transition to the unique procedure, the response side transition control means causes the response. Control is performed to shift from 8 procedures to the original procedure.

In this way, the calling station sends the unique procedure shift signal and the answering station receives the unique procedure shift signal, so that both the calling station and the answering station can smoothly and smoothly perform the V.S. You can move directly from 8 procedures to your own procedure. Thus, as in the first invention, V.V. The transition time from 8 procedures to the original procedure can be reduced.

Similarly to the above, in order to execute the communication procedure transition method according to the second invention, the communication terminal apparatus according to the fifth invention described below is used as a calling station and the communication terminal apparatus according to the sixth invention is used. The communication terminal device may be applied to each responding station.

That is, in the calling station as the communication terminal device according to the fifth invention, When the modified response tone (ANSam signal) is received from the answering station during the execution of the 8 procedure, the calling menu signal (UCM signal) including the unique information indicating the shift to the unique procedure is answered by the signal transmitting means. Send to the station. When a common menu signal corresponding to the UCM signal (for example, a common menu signal (UJM signal) including unique information indicating a shift to a unique procedure) is received from the answering station, the calling side control means controls the V.M. 8
Control to shift from procedure to original procedure.

On the other hand, in the response station as the communication terminal device according to the sixth invention, While performing 8 steps,
When the call receiving menu signal (UCM signal) including the unique information indicating the transition to the unique procedure is received by the signal receiving means during the transmission of the modified response tone (ANSam signal), the response side control means makes the change to the unique procedure. A common menu signal (UJM signal) including unique information indicating transition is sent to the calling station, Control is performed to shift from 8 procedures to the original procedure.

By transmitting the UCM signal from the calling station and transmitting the UJM signal corresponding to the UCM signal from the responding station in this manner, both the calling station and the responding station can smoothly and smoothly transmit the VCM signal with good timing. . You can move directly from 8 procedures to your own procedure. Thereby, V.V. The transition time from 8 procedures to the original procedure can be reduced.

Note that the calling station as the communication terminal apparatus according to the fifth invention may control to shift to the original procedure by transmitting the UCM signal. However, as in the fifth invention, the reception of the UJM signal from the responding station as a trigger causes a transition to the unique procedure, whereby the UC transmitted from the own terminal is transmitted.
After confirming that the M signal has been normally received by the responding station and that the responding station has responded to the transition to the original procedure, it is possible to reliably transition to the original procedure.

[0043]

BEST MODE FOR CARRYING OUT THE INVENTION

[First Embodiment] A first embodiment according to the present invention will be described below with reference to the drawings.
The embodiment will be described in detail.

[Overall Configuration of Facsimile Apparatus] FIG. 1 shows an overall configuration diagram of a facsimile apparatus 10 as an example of a communication terminal apparatus according to the present invention. The facsimile machine 10 includes a CPU 12 for controlling the entire facsimile machine 10, a RAM 14 as a work area used when executing a control program, an operation display unit 16 provided with a display for operating the facsimile machine 10 and operation switches, A reading unit 18 for reading a transmission original; a printing unit 20 for printing and outputting received image information; encoding / decoding / enlargement /
An image processing unit 22 that performs image processing such as reduction, an image storage unit 24 that stores image information to be transmitted or received image information, and a system control program storage unit that includes a ROM that stores a program that controls the entire facsimile apparatus 10. 2
8. A communication control program storage unit 30 composed of a ROM storing a program for controlling communication suitable for an analog network (for example, G3), and a facsimile machine 10 having an automatic calling / receiving function connected to the analog public network. An analog network control unit 36 is provided as a device for performing these operations, and these are interconnected by a system bus 26.

The analog network control section 36 is mutually connected to the communication control program storage section 30 via a modem (modulator / demodulator) 32 having a low-speed mode function and a high-speed mode function. Further, the analog network control unit 36 is mutually connected to the communication control program storage unit 30 via a tone processing unit 34 described later. This tone processing unit 3
Reference numeral 4 denotes a function for transmitting a unique procedure transition signal (single tone of 1000 Hz) for instructing transition to the unique procedure, and a notification that the transition to the unique procedure has been accepted when the unique procedure transition signal is received. It has a function of transmitting a response signal (single tone of 600 Hz).

[ITU-T Recommendation T. Overview of Basic Communication Procedure of ANNEXF] Next, ITU-T Recommendation T.30 30 A
An outline of a basic communication procedure of NNEXF will be described. FIG. 30 shows a basic communication procedure of ANNEXF, in which a signal transmitted from the calling station to the answering station is on the left side of the center line, and a signal transmitted from the answering station to the calling station is on the right side of the center line. Are shown in chronological order from top to bottom.

FIG. 2 covers the procedure at the start of communication, the procedure at the time of transmitting image information, and the procedure at the end of communication. Among these, the procedure at the start of communication includes network interaction (phase 1) for recognizing the functions and the like of the partner terminal, and a line for grasping the state of the communication line set between the calling station and the answering station. Probing (Phase 2), Primary channel equalizer training (Phase 3) for training the equalizer built in the modem, Modem parameter exchange (Phase 2) for exchanging the performance information of the modem and setting the data signal speed T.4), for exchanging control channel data before transmitting image information. 30 facsimile handshake (phase 5),
Prior to the transmission of the image information, the primary channel is resynchronized. The primary channel is resynchronized (phase 6).

[0048] Of these, in network interaction, V. 8 is performed, and after the next line probing, V.8 is performed. The operation based on the 34 half-duplex operation mode is performed.

Here, the basic communication procedure of the network interaction (phase 1) related to the present invention will be described in detail with reference to FIGS.

After dialing (step 102 in FIG. 3), the calling station waits for a signal from the answering station (step 10).
4). If the received signal is an ANSam signal (if affirmed in step 106), a silent period of Te seconds (0.5 seconds or more) defined in advance (step 10).
Following 8), the communication capability information of the calling station (for example, V.3)
A CM signal including whether or not it has the capability to execute the four procedures is transmitted to the responding station (step 110). This CM signal has a predetermined T1 time as an upper limit and has a C
It is transmitted a plurality of times until the J signal is transmitted.

After starting the transmission of the CM signal, the calling station receives a JM signal following the ANSam signal from the responding station. The JM signal includes information on the communication capability that can be executed by the response station among the communication capabilities represented by the CM signal, and is transmitted from the response station a plurality of times. By receiving the JM signal, the calling station can recognize a common communication capability between the calling station and the answering station.

When the calling station receives the same JM signal two or more times (Yes at step 112), it sends a CJ signal indicating the end of the CM signal to the answering station (step 11).
4). Here, after transmitting the CJ signal by 3 octets (affirmed in step 116), the calling station follows the silent period of 75 ± 5 milliseconds (step 118), and then sets the V.V. 34
It shifts to the execution phase of the procedure (phase after the line probing (phase 2)) (step 120).

If the signal received in step 104 is a signal other than the ANSam signal (for example, a CED signal or a preamble) (that is, if the result is negative in step 106), the low speed signal transmitted thereafter (for example, 30
0 bps) NSF / DIS signal is received and analyzed (step 122). Here, V.V.
8 based on a predetermined bit indicating the presence or absence of the capability. 8 (step 1).
24).

Here, if the responding station is V. 8 if you do not have the ability. Move to 30 binary procedure (Step 1)
30). On the other hand, if the answering station is If it has eight capabilities, after transmitting the CI signal to the responding station (step 126), it waits for the reception of the ANSam signal again (step 12).
8). When the ANSam signal is received, the process proceeds to step 108, and thereafter, the same procedure as described above is executed.

After receiving the call (step 202 in FIG. 4), the answering station sends an ANSam signal to the calling station (step 206), following a silent period of at least 200 milliseconds (step 204). However, at this point, the T.D. In some cases, a CED signal, a preamble, and a low-speed (for example, 300 bps) NSF / DIS signal are transmitted to the calling station according to a 30-binary procedure.

Thereafter, reception of a CM signal from the calling station is waited for (step 208). When the responding station receives the same CM signal twice or more (Yes at step 210), the responding station sends a JM signal to the responding station (step 2).
12). The JM signal is transmitted a plurality of times, with a predetermined T1 time as an upper limit, until a CJ signal described later is received by 3 octets.

After starting transmission of the JM signal, the answering station waits for reception of the CJ signal following the CM signal from the calling station (step 214). Here, when the CJ signal is received by 3 octets (Yes at step 214), the responding station receives the CJ signal.
Following a silence period of ± 5 ms (step 216),
V. Move to the execution phase of 34 procedures (phase after line probing (phase 2)) (step 21)
8).

In step 208, if the CM signal cannot be received within a predetermined time (for example, the allowable ANSam signal transmission time Tr seconds (specifically, 5 ± 1 seconds)) (ie, the result in step 220 is affirmative). NSF)
A / DIS signal is sent to the calling station (step 222).
Thereafter, if a CI signal is not received within a predetermined time, T.D.
The process proceeds to a 30 binary procedure (step 226). However, if a CI signal is received within a predetermined time (step 22)
If the answer is affirmative in step 4), the ANSam signal is transmitted again (step 206), and the process returns to step 208 to wait for the reception of the CM signal.

[Overview of Image Information Transmission / Reception Operation in Facsimile Apparatus] Next, the facsimile apparatus 1 of the present embodiment will be described.
The outline of the image information transmission / reception operation at 0 will be described.

First, referring to FIG. 6, the facsimile apparatus 1
A transmission operation in the case where 0 transmits image information as a calling station will be described. First, the original to be transmitted is read by the reading unit 18 (step 152), and the read information is encoded by the image processing unit 22 (step 154). And
The encoded image information is stored in the image storage unit 24 (step 156). Next, by executing the calling operation program stored in the communication control program storage unit 30, a call is made to the target destination device via the analog network control unit 36 (step 158). Thereafter, the process enters a state of waiting for a response to the call (step 160). If there is no response, the re-call control program stored in the system control program storage unit 28 is executed (step 176), and the re-call to the partner device is performed (step 158).

On the other hand, if there is a response to the call, the pre-processing program (pre-procedure) for image transmission stored in the communication control program storage unit 30 is executed (step 162).
When the pre-procedure is completed, the image information is read out from the image storage unit 24 (step 164), modulated by the modem 32, and then the modulated image information is transmitted from the analog network control unit 36 (step 166).

Then, after executing the post-processing program (post-procedure) of the image transmission stored in the communication control program storage section 30 (step 168), the line is disconnected (step 170).

When the above series of processing has been completed normally, the image information stored in the image storage unit 24 is deleted (step 174), and the transmission processing ends. However, if the above series of processing is not completed normally, a recall control program is executed (step 178), and a recall to the partner device is performed (step 158).

Next, the facsimile machine 1 will be described with reference to FIG.
A description will be given of a receiving operation in a case where 0 receives image information as a response station. First, an incoming call is waited for (step 252), and when an incoming call is received, the analog network control unit 36 notifies the incoming call (step 254). Upon receiving the notification of the incoming call, the analog network control unit 36 is instructed to receive the image information (step 256). Then, the communication control program storage unit 30
(Step 258). When the pre-procedure is completed, the image information received by the analog network control unit 36 is demodulated by the modem 32, and the demodulated image information is stored in the image storage unit 24 (step 260).

When the storage of the image information is completed, a post-processing program (post-procedure) of the image reception stored in the communication control program storage unit 30 is executed (step 262), and the line is disconnected (step 264).

Thereafter, the image information is read from the image storage unit 24 (step 266), the read image information is decoded by the image processing unit 22, and the decoded image information is transferred to the printing unit 20 (step 268). Then, the transferred image information is recorded on the recording paper by the printing unit 20 (step 270), and the receiving process is terminated.

[Description of First Unique Procedure Shift Process]
As a first embodiment of the communication procedure shifting method according to the present invention, a first unique procedure shifting process will be described with reference to FIGS. 8 (A), 9 and 10.

At the calling station, first, After transmitting the CNG signal to the responding station in step 102 of FIG. 9 in accordance with the eight procedures, it waits for reception of the signal from the responding station in step 104.

Here, V. When the signal is received in step 104 and the received signal is the ANSam signal in order to shift from the 8 procedure to the unique procedure, the process proceeds to step 107 and the tone processing unit 34 instructs the shift to the unique procedure. Of the original procedure transition signal (single tone of 1000 Hz) to the responding station (arrow t1 in FIG. 8A).
Department).

After that, in step 109, reception of a response signal (single tone of 600 Hz) from the response station is waited for, and when the response signal is received from the response station, step 111
Go to and execute the original procedure.

At one responding station, step 20 in FIG.
2. When you receive a call at 2, After a silent period of at least 200 milliseconds (step 204) according to the 8 procedure, step 20
At 5, the transmission of the ANSam signal to the calling station is started.

Here, reception of the unique procedure transition signal and the CM signal is waited (steps 207 and 208). If the unique procedure transition signal is received in step 207, the process proceeds to step 209, and the transmission of the ANSam signal is stopped. Then, after the reception of the unique procedure transition signal, step 213 is executed.
Then, a response signal (600 Hz single tone) is transmitted to the calling station by the tone processing unit 34 (arrow t2 in FIG. 8A).
Section), and in the next step 215, the procedure is shifted to the original procedure and executed.

If a CM signal is received in step 208, the V. The process proceeds to step 34 (step 217).
When the reception of the unique procedure transition signal and the CM signal has timed out (when an affirmative determination is made in step 219), the transmission of the ANSam signal is stopped (step 22).
1) T. Perform 30 binary procedures (step 22)
6).

By executing the above-described first unique procedure shift processing, V.V. When transitioning from the 8th procedure to the original procedure, ITU-T Recommendation T.8 30 ANNEXF.
8 to V.8. 34 procedure. There is no need to shift to a unique procedure according to the rules of 30. That is,
V. Since it is possible to directly shift from the 8 procedure to the original procedure, The transition time from eight procedures to a unique procedure can be reduced.

In the first unique procedure shift processing, the calling station shifts to the unique procedure after receiving the response signal from the answering station. The procedure may be shifted to the original procedure immediately.

[Second Embodiment] Next, a CM signal (UCM signal) including information indicating transition to the original procedure and a JM signal (UJM signal) including information indicating transition to the original procedure are issued. By exchanging between the V. station and the answering station, The second unique procedure shift process for shifting from the 8 procedure to the unique procedure
This will be described as a second embodiment.

In the second embodiment, the configuration of the facsimile apparatus 10 is the same as that of the first embodiment,
The UCM signal and U
It has the ability to send and receive JM signals.

FIG. 11 shows a processing routine on the calling station side, and FIG. 12 shows a processing routine on the answering station side. The processing is common to FIGS. 11 and 9, and FIGS.
Are assigned the same step numbers.

At the calling station, as shown in FIG.
After the transmission, if the ANSam signal is received from the responding station (if affirmative determination is made in step 106), the process proceeds to step 107A, and the above-described UCM signal is transmitted to the responding station by the session control function of the modem 32 (FIG. 8B). Arrow T1
Department). Then, in the next step 109A, U
It waits for a JM signal to be received. Here, when the UJM signal is received, in step 114, C indicating the end of the UCM signal is output.
The J signal is transmitted (arrow T3 in FIG. 8B), and in the next step 115, the procedure shifts to the original procedure and is executed.

At one responding station, as shown in FIG.
After the transmission of the ANSam signal starts (step 205), C
It waits for reception of the M signal (step 208). Where C
Upon receiving the M signal, in step 231 the received CM
It is determined whether the signal is the UCM signal described above.

If the received CM signal is a UCM signal,
At step 209, the transmission of the ANSam signal is stopped. At the next step 211A, the above-described UJM signal is transmitted to the calling station by the session control function of the modem 32 (FIG. 8).
(B) arrow T2). Then, the next step 213A
Waits for the reception of the CJ signal indicating the end of the UCM signal,
When the CJ signal is received, the procedure shifts to the original procedure in the next step 215 and is executed.

By executing the above-described second unique procedure shift processing, the V.V. It is possible to directly shift from eight procedures to a unique procedure. Thereby, V.V. The transition time from 8 procedures to the original procedure can be reduced.

In the above-described second unique procedure shift processing, the calling station waits for reception of the UJM signal from the answering station and shifts to the unique procedure. However, following the UCM signal, the calling station shifts the CJ signal to the answering station. May be transferred to the original procedure as soon as it is sent.

In the first and second embodiments, an example of a facsimile apparatus has been described as a communication terminal apparatus according to the present invention. The present invention can be applied to all devices that can execute the session start procedure according to No. 8 and similar effects can be obtained.

[0085]

According to the present invention, the calling station sends a unique procedure shift signal to the answering station, and the answering station receives the unique procedure shifting signal. V. smoothly. Since it is possible to directly shift from the 8 procedure to the original procedure, The effect is obtained that the transition time from eight procedures to the original procedure can be reduced.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a facsimile machine according to first and second embodiments.

[Fig. 2] ITU-T Recommendation T. It is a figure showing the outline of the communication procedure based on 30 ANNEXF.

FIG. 3 is a flowchart showing a communication control processing routine on the calling station side in a network interaction phase.

FIG. 4 is a flowchart showing a communication control processing routine on the response station side in a network interaction phase.

FIG. 5: ITU-T Recommendation T. It is a figure showing the outline of a 30 binary procedure.

FIG. 6 is a flowchart showing an image information transmitting operation on the calling station side.

FIG. 7 is a flowchart showing an image information transmission operation on the response station side.

FIG. 8A is a diagram showing signal exchange in the first embodiment, and FIG. 8B is a diagram showing signal exchange in the second embodiment.

FIG. 9 is a flowchart showing a communication control processing routine on the calling station side in the first embodiment.

FIG. 10 is a flowchart showing a communication control processing routine on the response station side in the first embodiment.

FIG. 11 is a flowchart showing a communication control processing routine on the calling station side in the second embodiment.

FIG. 12 is a flowchart showing a communication control processing routine on the response station side in the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Facsimile apparatus (communication terminal device) 12 CPU 32 Modem 34 Tone processing part 36 Analog network control part

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshiaki Tezuka 3-7-1, Fuuchi, Iwatsuki-shi, Saitama Fuji Xerox Co., Ltd. Iwatsuki Office (72) Inventor Hiroaki Sakaki 3-7-1, Fuuchi, Iwatsuki-shi, Saitama 1 Fuji Xerox Co., Ltd. Iwatsuki Office (72) Inventor Yoshihiro Mae 3-7-1, Fuwa, Iwatsuki City, Saitama Prefecture Fuji Xerox Co., Ltd. Iwatsuki Office (72) Inventor Hirotaka Kawahata Iwatsuki City, Saitama Prefecture 3-7-1, Fuji Xerox Co., Ltd. Iwatsuki Office

Claims (6)

[Claims] 1. An ITU-T Recommendation V. 8 between communication terminal devices capable of executing a session start procedure according to V.8. 8. A communication procedure shifting method for shifting from a session start procedure according to V.8 to a unique procedure, At a predetermined timing during the execution of the session start procedure according to 8, a unique procedure transition signal instructing transition to the unique procedure is sent from the calling station to the answering station, and the unique procedure transition signal is received by the responding station; At each of the responding station that has received the unique procedure transition signal and the calling station that has transmitted the unique procedure transition signal, each of the responding stations transmits the V.1 signal. 8. A communication procedure shifting method, wherein the procedure shifts from a session start procedure according to No. 8 to a unique procedure. 2. An ITU-T Recommendation V. 8 between communication terminal devices capable of executing a session start procedure according to V.8. This is a communication procedure transition method for transitioning from the session start procedure to the original procedure in accordance with No. 8 and is unique information indicating transition to the original procedure while the modified response tone from the answering station is being received at the calling station. Is transmitted from the calling station to the answering station from the calling station to the answering station. When the answering station receives the calling menu signal including the unique information, the answering station includes the unique information indicating transition to the unique procedure. The common station sends a common menu signal from the answering station to the calling station, and each of the calling station receiving the common menu signal containing the unique information and the answering station sending the common menu signal containing the unique information, V. 8. A communication procedure shifting method, wherein the procedure shifts from a session start procedure according to No. 8 to a unique procedure. 3. The method according to ITU-T Recommendation V.3. 8. A communication terminal device capable of executing a session start procedure according to V.8. Transition signal transmitting means for transmitting, to a response station, a unique procedure transition signal for instructing a transition to a unique procedure at a predetermined timing when a session start procedure according to No. 8 is being executed as a calling station; When the unique procedure shift signal is sent out by the means, 8. A communication terminal device comprising: a calling-side transition control unit that controls transition from a session start procedure according to No. 8 to a unique procedure. 4. ITU-T Recommendation V. 8. A communication terminal device capable of executing a session start procedure according to V.8. And a transition signal receiving means for receiving a unique procedure transition signal for instructing a transition to a unique procedure when the session start procedure according to No. 8 is executed as a response station. If received, the V.1 is received. And a responding-side transition control means for controlling transition from a session start procedure according to No. 8 to a unique procedure. 5. The method according to ITU-T Recommendation V.5. 8. A communication terminal device capable of executing a session start procedure according to V.8. As a calling station in the session start procedure in accordance with No. 8, while receiving the modified response tone from the answering station, a signal transmission for sending a calling menu signal including unique information indicating transition to the unique procedure to the answering station. Means for receiving the common menu signal corresponding to the calling menu signal including the unique information sent by the signal sending means. 8. A communication terminal device comprising: a calling-side control unit that controls a transition from a session start procedure according to No. 8 to a unique procedure. 6. ITU-T Recommendation V. 8. A communication terminal device capable of executing a session start procedure according to V.8. Signal receiving means for receiving a calling menu signal including unique information indicating transition to a unique procedure while transmitting a modified response tone to a calling station as a responding station in a session start procedure according to the above 8. When the call receiving menu signal including the unique information indicating the transition to the unique procedure is received by the signal receiving unit, the common menu signal including the unique information indicating the shift to the unique procedure is transmitted to the calling station. Outgoing. And a responding-side control means for controlling a transition from the session start procedure according to No. 8 to a unique procedure.